void Game::Step()
{
// this is the workhorse of your game it will be called
// continuously in real-time this is like main() in C
// all the calls for you game go here!
static int id = -1;
static mat4 mrot; // general rotation matrix
static float plight_ang = 0,
slight_ang = 0; // angles for light motion
// use these to rotate objects
static float x_ang = 0, y_ang = 0, z_ang = 0;
// state variables for different rendering modes and help
static int wireframe_mode = 1;
static int backface_mode = -1;
static int lighting_mode = 1;
static int help_mode = 1;
static int zsort_mode = -1;
static int x_clip_mode = 1;
static int y_clip_mode = 1;
static int z_clip_mode = 1;
static int z_buffer_mode = -1;
static int display_mode = 1;
static int bsp_backface_mode = 1;
char work_string[256]; // temp string
int index; // looping var
bspeditor::Context* context = bspeditor::Context::Instance();
Graphics& graphics = Modules::GetGraphics();
DIMOUSESTATE& mouse_state = t3d::Modules::GetInput().MouseState();
// is user in editor mode or viewing mode?
switch(context->editor_state)
{
case EDITOR_STATE_INIT: /////////////////////////////////////////////////
{
// now transition to edit mode
context->editor_state = EDITOR_STATE_EDIT;
} break;
case EDITOR_STATE_EDIT: /////////////////////////////////////////////////
{
// start the timing clock
Modules::GetTimer().Start_Clock();
// clear the drawing surface
//DDraw_Fill_Surface(graphics.GetBackSurface(), 0);
graphics.GetBackSurface()->Blt(NULL, gadgets->background->GetImage(), NULL, DDBLT_WAIT, NULL);
// read keyboard and other devices here
Modules::GetInput().ReadKeyboard();
//DInput_Read_Mouse();
// game logic here...
// find nearest line
context->nearest_line = task->DeleteLine(mouse_state.lX, mouse_state.lY,0);
// is user trying to press left button?
if (mouse_state.rgbButtons[0] || mouse_state.rgbButtons[2])// && mouse_debounce[0] == 0)
{
// determine area click is occuring in
if (mouse_state.lX > INTERFACE_MIN_X && mouse_state.lX < INTERFACE_MAX_X &&
mouse_state.lY > INTERFACE_MIN_Y && mouse_state.lY < INTERFACE_MAX_Y)
{
// check for gadget
if ((id = gadgets->Process(mouse_state.lX, mouse_state.lY, mouse_state.rgbButtons)) >= 0)
{
// play a sound first
//DSound_Play(beep0_sound_id);
// process clicks
switch(id)
{
case GADGET_ID_SEGMENT_MODE_ID:
{
task->action = ACTION_STARTING_LINE;
} break;
case GADGET_ID_POLYLINE_MODE_ID:
{
task->action = ACTION_STARTING_POLYLINE;
} break;
case GADGET_ID_DELETE_MODE_ID:
{
task->action = ACTION_DELETE_LINE;
} break;
case GADGET_ID_CLEAR_ALL_ID:
{
// reset everything
context->Reset();
} break;
case GADGET_ID_FLOOR_MODE_ID:
{
task->action = ACTION_FLOOR_MODE;
} break;
case GADGET_ID_WALL_TEXTURE_DEC:
{
if (--context->texture_index_wall < -1)
context->texture_index_wall = -1;
} break;
case GADGET_ID_WALL_TEXTURE_INC:
{
if (++context->texture_index_wall >= NUM_TEXTURES)
context->texture_index_wall = NUM_TEXTURES-1;
} break;
case GADGET_ID_WALL_HEIGHT_DEC:
{
if ((context->wall_height-=8) < 0)
context->wall_height = 0;
} break;
case GADGET_ID_WALL_HEIGHT_INC:
{
context->wall_height+=8;
} break;
case GADGET_ID_FLOOR_TEXTURE_DEC:
{
if (--context->texture_index_floor < -1)
context->texture_index_floor = -1;
} break;
case GADGET_ID_FLOOR_TEXTURE_INC:
{
if (++context->texture_index_floor >= NUM_TEXTURES)
context->texture_index_floor = NUM_TEXTURES-1;
} break;
default: break;
} // end switch
} // end if
else
{
} // end else
} // end if interface
// test for bsp area
if (mouse_state.lX > BSP_MIN_X && mouse_state.lX < BSP_MAX_X &&
mouse_state.lY > BSP_MIN_Y && mouse_state.lY < BSP_MAX_Y)
{
// process bsp editor area click
// test if this is starting point or endpoint
if (task->action == ACTION_STARTING_LINE)
{
// set starting field, note the offsets to center the
// starting point in middle of cross hairs
if (!context->snap_to_grid)
{
context->lines[context->total_lines].p0.x = mouse_state.lX;
context->lines[context->total_lines].p0.y = mouse_state.lY;
} // end if
else
{
context->lines[context->total_lines].p0.x = BSP_GRID_SIZE * (int)(0.5+(float)mouse_state.lX / (float)BSP_GRID_SIZE);
context->lines[context->total_lines].p0.y = BSP_GRID_SIZE * (int)(0.5+(float)mouse_state.lY / (float)BSP_GRID_SIZE);
} // end if
// remember starting line to close contour
context->starting_line = context->total_lines;
// set point type to ending point
task->action = ACTION_ENDING_LINE;
// wait for mouse button release
// Wait_For_Mouse_Up();
} // end if start of wall
else
if (task->action == ACTION_ENDING_LINE)
{
// check for normal left mouse click
if (mouse_state.rgbButtons[0])
{
// must be the end of a wall or ending point
if (!context->snap_to_grid)
{
context->lines[context->total_lines].p1.x = mouse_state.lX;
context->lines[context->total_lines].p1.y = mouse_state.lY;
} // end if
else
{
context->lines[context->total_lines].p1.x = BSP_GRID_SIZE * (int)(0.5+(float)mouse_state.lX / (float)BSP_GRID_SIZE);
context->lines[context->total_lines].p1.y = BSP_GRID_SIZE * (int)(0.5+(float)mouse_state.lY / (float)BSP_GRID_SIZE);
} // end if
// set texture id
context->lines[context->total_lines].texture_id = context->texture_index_wall;
// set height
context->lines[context->total_lines].height = context->wall_height;
// set attributes
context->lines[context->total_lines].attr = context->poly_attr;
// set color
context->lines[context->total_lines].color = context->poly_color;
// set task->action back to starting point
task->action = ACTION_STARTING_LINE;
// advance number of context->lines
if (++context->total_lines >= MAX_LINES)
context->total_lines = MAX_LINES - 1;
// wait for mouse button release
// Wait_For_Mouse_Up();
} // end if
else
// check for right mouse click trying to close contour
if (mouse_state.rgbButtons[2])
{
// reset, user wants to restart segment
task->action = ACTION_STARTING_LINE;
} // end if
} // end else if
else
// test if this is starting point or endpoint
if (task->action == ACTION_STARTING_POLYLINE)
{
// set starting field, note the offsets to center the
// starting point in middle of cross hairs
if (!context->snap_to_grid)
{
context->lines[context->total_lines].p0.x = mouse_state.lX;
context->lines[context->total_lines].p0.y = mouse_state.lY;
} // end if
else
{
context->lines[context->total_lines].p0.x = BSP_GRID_SIZE * (int)(0.5+(float)mouse_state.lX / (float)BSP_GRID_SIZE);
context->lines[context->total_lines].p0.y = BSP_GRID_SIZE * (int)(0.5+(float)mouse_state.lY / (float)BSP_GRID_SIZE);
} // end if
// remember starting line to close contour
context->starting_line = context->total_lines;
// set point type to ending point
task->action = ACTION_ADDING_POLYLINE;
// wait for mouse button release
// Wait_For_Mouse_Up();
} // end if start of wall
else
if (task->action == ACTION_ADDING_POLYLINE)
{
// check for normal left mouse click
if (mouse_state.rgbButtons[0])
{
// must be the end of a wall or ending point
if (!context->snap_to_grid)
{
context->lines[context->total_lines].p1.x = mouse_state.lX;
context->lines[context->total_lines].p1.y = mouse_state.lY;
} // end if
else
{
context->lines[context->total_lines].p1.x = BSP_GRID_SIZE * (int)(0.5+(float)mouse_state.lX / (float)BSP_GRID_SIZE);
context->lines[context->total_lines].p1.y = BSP_GRID_SIZE * (int)(0.5+(float)mouse_state.lY / (float)BSP_GRID_SIZE);
} // end if
// set texture id
context->lines[context->total_lines].texture_id = context->texture_index_wall;
// set height
context->lines[context->total_lines].height = context->wall_height;
// set attributes
context->lines[context->total_lines].attr = context->poly_attr;
// set color
context->lines[context->total_lines].color = context->poly_color;
// set task->action back to starting point
task->action = ACTION_ADDING_POLYLINE;
// advance number of context->lines
if (++context->total_lines >= MAX_LINES)
context->total_lines = MAX_LINES - 1;
// set start point as last endpoint
context->lines[context->total_lines].p0.x = context->lines[context->total_lines-1].p1.x;
context->lines[context->total_lines].p0.y = context->lines[context->total_lines-1].p1.y;
// wait for mouse button release
// Wait_For_Mouse_Up();
} // end if
else
// check for right mouse click trying to close contour
if (mouse_state.rgbButtons[2])
{
// end the polyline
task->action = ACTION_STARTING_POLYLINE;
// Wait_For_Mouse_Up();
} // end if
} // end else if
else
if (task->action==ACTION_DELETE_LINE)
{
// try and delete the line nearest selected point
task->DeleteLine(mouse_state.lX, mouse_state.lY,1);
// wait for mouse release
// Wait_For_Mouse_Up();
} // end if
else
if (task->action==ACTION_FLOOR_MODE)
{
// compute cell that mouse is on
int cell_x = (mouse_state.lX - BSP_MIN_X) / BSP_GRID_SIZE;
int cell_y = (mouse_state.lY - BSP_MIN_Y) / BSP_GRID_SIZE;
// drawing or erasing
if (mouse_state.rgbButtons[0])
{
// set texture id
context->floors[cell_y][cell_x] = context->texture_index_floor;
} // end if
else
if (mouse_state.rgbButtons[2])
{
// set texture id
context->floors[cell_y][cell_x] = -1;
} // end if
} // end if
} // end if in bsp area
// force button debounce
if (mouse_state.rgbButtons[0])
mouse_state.rgbButtons[0] = 0;
if (mouse_state.rgbButtons[2])
mouse_state.rgbButtons[2] = 0;
//mouse_debounce[0] = 1;
} // end if
// debounce mouse
//if (!mouse_state.rgbButtons[0] && mouse_debounce[0] == 1)
// mouse_debounce[0] = 0;
// draw the floors
if (context->view_floors == 1)
task->DrawFloors(graphics.GetBackSurface());
// lock the back buffer
graphics.LockBackSurface();
// draw the context->lines
if (context->view_walls == 1)
task->DrawLines(graphics.GetBackBuffer(), graphics.GetBackLinePitch());
// draw the grid
if (context->view_grid==1)
task->DrawGrid(graphics.GetBackBuffer(), graphics.GetBackLinePitch(), _RGB32BIT(255,255,255,255), BSP_MIN_X, BSP_MIN_Y,
BSP_GRID_SIZE, BSP_GRID_SIZE,
BSP_CELLS_X,BSP_CELLS_Y);
// unlock the back buffer
graphics.UnlockBackSurface();
// draw all the buttons
gadgets->Draw(graphics.GetBackSurface());
// draw the textures previews
if (context->texture_index_wall >= 0)
{
// selected texture
context->textures->SetPosition(665, 302-55);
context->textures->SetCurrFrame(context->texture_index_wall);
context->textures->DrawScaled(64,64,graphics.GetBackSurface());
// get the line that mouse is closest to
context->nearest_line = task->DeleteLine(mouse_state.lX, mouse_state.lY,0);
// draw texture that is applied to line in secondary preview window
if (context->nearest_line >= 0)
{
context->textures->SetPosition(736, 247);
context->textures->SetCurrFrame(context->lines[context->nearest_line].texture_id);
context->textures->DrawScaled(32,32,graphics.GetBackSurface());
// now draw height of line
sprintf(buffer,"%d",context->lines[context->nearest_line].height);
graphics.DrawTextGDI(buffer, 750,188,RGB(0,255,0),graphics.GetBackSurface());
} // end if
} // end if
// draw the floor texture preview
if (context->texture_index_floor >= 0)
{
context->textures->SetPosition(665, 453);
context->textures->SetCurrFrame(context->texture_index_floor);
context->textures->DrawScaled(64,64,graphics.GetBackSurface());
} // end if
// draw the wall index
if (context->texture_index_wall >= 0)
{
sprintf(buffer,"%d",context->texture_index_wall);
graphics.DrawTextGDI(buffer, 738,336-56,RGB(0,255,0),graphics.GetBackSurface());
} // end if
else
{
graphics.DrawTextGDI("None", 738,336,RGB(0,255,0),graphics.GetBackSurface());
} // end
// wall height
sprintf(buffer,"%d",context->wall_height);
graphics.DrawTextGDI(buffer, 688, 188,RGB(0,255,0),graphics.GetBackSurface());
// texture index for floors
if (context->texture_index_floor >= 0)
{
sprintf(buffer,"%d",context->texture_index_floor);
graphics.DrawTextGDI(buffer, 738,488,RGB(0,255,0),graphics.GetBackSurface());
} // end if
else
{
graphics.DrawTextGDI("None", 738,488,RGB(0,255,0),graphics.GetBackSurface());
} // end
// display stats
sprintf(buffer,"WorldPos=(%d,%d). Num Walls=%d. Num Floor Tiles=%d. Total Polys=%d.",
mouse_state.lX, mouse_state.lY, context->total_lines+1, context->num_floor_tiles, 2*(context->total_lines+1+context->num_floor_tiles));
graphics.DrawTextGDI(buffer, 8,WINDOW_HEIGHT - 18,RGB(0,255,0),graphics.GetBackSurface());
// flip the surfaces
graphics.Flip(main_window_handle);
// sync to 30ish fps
Sleep(10);
#if 0
// check of user is trying to exit
if (KEY_DOWN(VK_ESCAPE) || Modules::GetInput().KeyboardState()[DIK_ESCAPE])
{
PostMessage(main_window_handle, WM_DESTROY,0,0);
} // end if
#endif
} break;
case EDITOR_STATE_VIEW: ///////////////////////////////////////////////
{
// start the timing clock
Modules::GetTimer().Start_Clock();
// clear the drawing surface
graphics.FillSurface(graphics.GetBackSurface(), 0);
// read keyboard and other devices here
Modules::GetInput().ReadKeyboard();
// game logic here...
// modes and lights
// wireframe mode
if (Modules::GetInput().KeyboardState()[DIK_W])
{
// toggle wireframe mode
if (++wireframe_mode > 1)
wireframe_mode=0;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// backface removal
if (Modules::GetInput().KeyboardState()[DIK_B])
{
// toggle backface removal
backface_mode = -backface_mode;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// lighting
if (Modules::GetInput().KeyboardState()[DIK_L])
{
// toggle lighting engine completely
lighting_mode = -lighting_mode;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
LightsMgr& lights = Modules::GetGraphics().GetLights();
// toggle ambient light
if (Modules::GetInput().KeyboardState()[DIK_A])
{
// toggle ambient light
if (lights[AMBIENT_LIGHT_INDEX].state == LIGHT_STATE_ON)
lights[AMBIENT_LIGHT_INDEX].state = LIGHT_STATE_OFF;
else
lights[AMBIENT_LIGHT_INDEX].state = LIGHT_STATE_ON;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle point light
if (Modules::GetInput().KeyboardState()[DIK_P])
{
// toggle point light
if (lights[POINT_LIGHT_INDEX].state == LIGHT_STATE_ON)
lights[POINT_LIGHT_INDEX].state = LIGHT_STATE_OFF;
else
lights[POINT_LIGHT_INDEX].state = LIGHT_STATE_ON;
// toggle point light
if (lights[POINT_LIGHT2_INDEX].state == LIGHT_STATE_ON)
lights[POINT_LIGHT2_INDEX].state = LIGHT_STATE_OFF;
else
lights[POINT_LIGHT2_INDEX].state = LIGHT_STATE_ON;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle infinite light
if (Modules::GetInput().KeyboardState()[DIK_I])
{
// toggle ambient light
if (lights[INFINITE_LIGHT_INDEX].state == LIGHT_STATE_ON)
lights[INFINITE_LIGHT_INDEX].state = LIGHT_STATE_OFF;
else
lights[INFINITE_LIGHT_INDEX].state = LIGHT_STATE_ON;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// help menu
if (Modules::GetInput().KeyboardState()[DIK_H])
{
// toggle help menu
help_mode = -help_mode;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// z-sorting
if (Modules::GetInput().KeyboardState()[DIK_S])
{
// toggle z sorting
zsort_mode = -zsort_mode;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// z buffer
if (Modules::GetInput().KeyboardState()[DIK_Z])
{
// toggle z buffer
z_buffer_mode = -z_buffer_mode;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// forward/backward
if (Modules::GetInput().KeyboardState()[DIK_UP])
{
// move forward
if ( (context->cam_speed+=2) > MAX_SPEED) context->cam_speed = MAX_SPEED;
} // end if
else if (Modules::GetInput().KeyboardState()[DIK_DOWN])
{
// move backward
if ((context->cam_speed-=2) < -MAX_SPEED) context->cam_speed = -MAX_SPEED;
} // end if
// rotate around y axis or yaw
if (Modules::GetInput().KeyboardState()[DIK_RIGHT])
{
context->cam->DirRef().y+=10;
// scroll the background
background_bmp->Scroll(-10);
} // end if
if (Modules::GetInput().KeyboardState()[DIK_LEFT])
{
context->cam->DirRef().y-=10;
// scroll the background
background_bmp->Scroll(10);
} // end if
// ambient scrolling
static int scroll_counter = 0;
if (++scroll_counter > 5)
{
// scroll the background
background_bmp->Scroll(1);
// reset scroll counter
scroll_counter = 0;
} // end if
// move point light source in ellipse around game world
lights[POINT_LIGHT_INDEX].pos.x = 1000*cos(DEG_TO_RAD(plight_ang));
lights[POINT_LIGHT_INDEX].pos.y = 100;
lights[POINT_LIGHT_INDEX].pos.z = 1000*sin(DEG_TO_RAD(plight_ang));
// move point light source in ellipse around game world
lights[POINT_LIGHT2_INDEX].pos.x = 500*cos(DEG_TO_RAD(-2*plight_ang));
lights[POINT_LIGHT2_INDEX].pos.y = 200;
lights[POINT_LIGHT2_INDEX].pos.z = 1000*sin(DEG_TO_RAD(-2*plight_ang));
if ((plight_ang+=3) > 360)
plight_ang = 0;
// decelerate camera
if (context->cam_speed > (CAM_DECEL) ) context->cam_speed-=CAM_DECEL;
else if (context->cam_speed < (-CAM_DECEL) ) context->cam_speed+=CAM_DECEL;
else context->cam_speed = 0;
// move camera
context->cam->PosRef().x += context->cam_speed*sin(DEG_TO_RAD(context->cam->Dir().y));
context->cam->PosRef().z += context->cam_speed*cos(DEG_TO_RAD(context->cam->Dir().y));
// generate camera matrix
context->cam->BuildMatrixEuler(CAM_ROT_SEQ_ZYX);
// build the camera vector rotation matrix ////////////////////////////////
mrot = mat4::RotateX(context->cam->Dir().x) *
mat4::RotateX(context->cam->Dir().y) *
mat4::RotateX(context->cam->Dir().z);
// transform the (0,0,1) vector and store it in the cam.n vector, this is now the
// view direction vector
context->cam->_n = mrot * vec4(0,0,1,1);
// normalize the viewing vector
context->cam->_n.Normalize();
// reset the render list
list->Reset();
// render the floors into polylist first
// reset the object (this only matters for backface and object removal)
RenderObject* obj_scene = bspeditor::Context::Instance()->obj_scene;
obj_scene->Reset();
// set position of floor
obj_scene->SetWorldPos(0, 0, 0);
// attempt to cull object
if (!obj_scene->Cull(*context->cam, CULL_OBJECT_XYZ_PLANES))
{
// create an identity to work with
mrot = mat4::Identity();
// rotate the local coords of the object
obj_scene->Transform(mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
obj_scene->ModelToWorld(TRANSFORM_TRANS_ONLY);
// insert the object into render list
list->Insert(*obj_scene,0);
} // end if
// reset the object (this only matters for backface and object removal)
obj_scene->Reset();
// set position of ceiling
obj_scene->SetWorldPos(0, context->ceiling_height, 0);
// attempt to cull object
if (!obj_scene->Cull(*context->cam, CULL_OBJECT_XYZ_PLANES))
{
// create an identity to work with
mrot = mat4::Identity();
// rotate the local coords of the object
obj_scene->Transform(mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
obj_scene->ModelToWorld(TRANSFORM_TRANS_ONLY);
// insert the object into render list
list->Insert(*obj_scene,0);
} // end if
int polycount = list->GetNumPolys();
// insert the bsp into rendering list without culling
context->bspfile->bsp_root->InsertionTraversal(*list, *context->cam, 1);
// compute total number of polys inserted into list
polycount = list->GetNumPolys() - polycount;
// reset number of polys rendered
debug_polys_rendered_per_frame = 0;
debug_polys_lit_per_frame = 0;
// remove backfaces
if (backface_mode==1)
list->RemoveBackfaces(*context->cam);
// apply world to camera transform
list->WorldToCamera(*context->cam);
// clip the polygons themselves now
list->ClipPolys(*context->cam, ((x_clip_mode == 1) ? CLIP_POLY_X_PLANE : 0) |
((y_clip_mode == 1) ? CLIP_POLY_Y_PLANE : 0) |
((z_clip_mode == 1) ? CLIP_POLY_Z_PLANE : 0) );
// light scene all at once
if (lighting_mode==1)
{
lights.Transform(context->cam->CameraMat(), TRANSFORM_LOCAL_TO_TRANS);
list->LightWorld32(*context->cam);
} // end if
// sort the polygon list (hurry up!)
if (zsort_mode == 1)
list->Sort(SORT_POLYLIST_AVGZ);
// apply camera to perspective transformation
list->CameraToPerspective(*context->cam);
// apply screen transform
list->PerspectiveToScreen(*context->cam);
// lock the back buffer
graphics.LockBackSurface();
// draw background
background_bmp->Draw32(graphics.GetBackBuffer(), graphics.GetBackLinePitch(), 0);
// reset number of polys rendered
debug_polys_rendered_per_frame = 0;
// render the renderinglist
if (wireframe_mode == 0)
list->DrawWire32(graphics.GetBackBuffer(), graphics.GetBackLinePitch());
else if (wireframe_mode == 1)
{
RenderContext rc;
// is z buffering enabled
if (z_buffer_mode == 1)
{
// set up rendering context for 1/z buffer
rc.attr = RENDER_ATTR_NOBUFFER
//| RENDER_ATTR_ALPHA
//| RENDER_ATTR_MIPMAP
//| RENDER_ATTR_BILERP
| RENDER_ATTR_TEXTURE_PERSPECTIVE_AFFINE;
} // end if
else
{
// set up rendering context for no zbuffer
rc.attr = RENDER_ATTR_NOBUFFER
//| RENDER_ATTR_ALPHA
//| RENDER_ATTR_MIPMAP
// | RENDER_ATTR_BILERP
| RENDER_ATTR_TEXTURE_PERSPECTIVE_AFFINE;
} // end else
// if z abuffer or 1/z buffer is being used then clear z buffer
if (rc.attr & RENDER_ATTR_ZBUFFER || rc.attr & RENDER_ATTR_WRITETHRUZBUFFER)
{
// clear the z buffer
zbuffer->Clear(32000 << FIXP16_SHIFT);
} // end if
else if (rc.attr & RENDER_ATTR_INVZBUFFER)
{
// clear the 1/z buffer
zbuffer->Clear(0 << FIXP16_SHIFT);
} // end if
rc.video_buffer = graphics.GetBackBuffer();
rc.lpitch = graphics.GetBackLinePitch();
rc.mip_dist = 3500;
rc.zbuffer = (unsigned char*)zbuffer->Buffer();
rc.zpitch = WINDOW_WIDTH*4;
rc.texture_dist = 0;
rc.alpha_override = -1;
// render scene
list->DrawContext(rc);
} // end if
// unlock the back buffer
graphics.UnlockBackSurface();
sprintf(work_string,"Lighting [%s]: Ambient=%d, Infinite=%d, BckFceRM [%s], Zsort [%s], Zbuffer [%s] vdir=[%3.2f,%3.2f,%3.2f]",
((lighting_mode == 1) ? "ON" : "OFF"),
lights[AMBIENT_LIGHT_INDEX].state,
lights[INFINITE_LIGHT_INDEX].state,
((backface_mode == 1) ? "ON" : "OFF"),
((zsort_mode == 1) ? "ON" : "OFF"),
((z_buffer_mode == 1) ? "ON" : "OFF"), context->cam->Normal().x, context->cam->Normal().y, context->cam->Normal().z);
graphics.DrawTextGDI(work_string, 0, WINDOW_HEIGHT-34-16, RGB(0,255,0), graphics.GetBackSurface());
// draw instructions
graphics.DrawTextGDI("Press ESC to return to editor mode. Press <H> for Help.", 0, 0, RGB(0,255,0), graphics.GetBackSurface());
// should we display help
int text_y = 16;
if (help_mode==1)
{
// draw help menu
graphics.DrawTextGDI("<A>..............Toggle ambient light source.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<I>..............Toggle infinite light source.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<P>..............Toggle point lights.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<B>..............Toggle backface removal.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<S>..............Toggle Z sorting.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<Z>..............Toggle Z buffering.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<Z>..............Toggle Wireframe mode.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<H>..............Toggle Help.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<ESC>............Exit demo.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
} // end help
sprintf(work_string,"Polys Rendered: %d, Polys lit: %d, Polys Inserted from BSP: %d", debug_polys_rendered_per_frame, debug_polys_lit_per_frame, polycount);
graphics.DrawTextGDI(work_string, 0, WINDOW_HEIGHT-34-16-16, RGB(0,255,0), graphics.GetBackSurface());
sprintf(work_string,"CAM [%5.2f, %5.2f, %5.2f]", context->cam->Pos().x, context->cam->Pos().y, context->cam->Pos().z);
graphics.DrawTextGDI(work_string, 0, WINDOW_HEIGHT-34-16-16-16, RGB(0,255,0), graphics.GetBackSurface());
// flip the surfaces
graphics.Flip(main_window_handle);
// sync to 30ish fps
Modules::GetTimer().Wait_Clock(30);
// check of user is trying to exit
if (KEY_DOWN(VK_ESCAPE) || Modules::GetInput().KeyboardState()[DIK_ESCAPE])
{
// switch game state back to editor more
context->editor_state = EDITOR_STATE_EDIT;
} // end if
} break;
default: break;
} // end switch
}
int WINAPI WinMain( HINSTANCE hinstance, HINSTANCE hprevinstance, LPSTR lpcmdline, int ncmdshow)
{
WNDCLASS winclass; // this will hold the class created
HWND hwnd; // generic window handle
MSG msg; // generic message
HDC hdc; // generic dc
RECT rect;
float velocity[15];
int ball_y[15],
ball_x[15],
iEndPos[15],
index=0;
LARGE_INTEGER a;
__int64 b=0,c=0, diffrenceC_B=0;
//fill in the window class stucture
winclass.style = CS_DBLCLKS | CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
winclass.lpfnWndProc = WindowProc;
winclass.cbClsExtra = 0;
winclass.cbWndExtra = 0;
winclass.hInstance = hinstance;
winclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
winclass.hCursor = LoadCursor(NULL, IDC_ARROW);
winclass.hbrBackground = (HBRUSH) GetStockObject(BLACK_BRUSH);
winclass.lpszMenuName = NULL; //MAKEINTRESOURCE(IDR_MENU1);
winclass.lpszClassName = WINDOW_CLASS_NAME;
// register the window class
if (!RegisterClass(&winclass))
return(0);
// create the window
if (!(hwnd = CreateWindow(WINDOW_CLASS_NAME, // class
"Bouncing on the desktop", // title
WS_OVERLAPPEDWINDOW | WS_VISIBLE,
0,600, // x,y
WINDOW_WIDTH, // width
WINDOW_HEIGHT, // height
NULL, // handle to parent
NULL, // handle to menu
hinstance,// instance
NULL))) // creation parms
{
MessageBox(hwnd, "Window Could not be Created", NULL, MB_OK); //NULL is default for Error
return(0);
}
// save the window handle and instance in a global
main_window_handle = hwnd;
main_instance = hinstance;
for(index=0; index<=14; index++) //start balls at random positions, set velocity = 0
{
ball_y[index]= -10;
ball_x[index]= rand()%1000;
iEndPos[index]= rand()%900;
velocity[index]= 0;
}
index=0; //reset index
// enter main event loop
while(1)
{
//check messages
if (PeekMessage(&msg,NULL,0,0,PM_REMOVE))
{
// test if this is a quit message
if (msg.message == WM_QUIT)
break;
// translate any accelerator keys
TranslateMessage(&msg);
// send the message to the window proc
DispatchMessage(&msg);
} // end if
if(KEY_DOWN(VK_ESCAPE)) //if hit the Esc key quit the program
PostQuitMessage(0);
if(!QueryPerformanceCounter(&a))
{
MessageBox(hwnd, "Error on QueryPerformanceCounter()", NULL, MB_OK); //NULL is default for Error
return(0);
}
else
{
b = c = a.QuadPart;
}
hdc= GetDC(hwnd);
//--------Begin Text Info---------------------
SetBkMode(hdc, TRANSPARENT); //set background color
//first create the eraser string for variable text
SetTextColor(hdc,RGB(0,255,0)); //set text color black
TextOut(hdc, 30, 60, buffer, strlen(buffer)); //print text
TextOut(hdc, 30, 75, buffer2, strlen(buffer2)); //print text
//unvarieing text
SetTextColor(hdc,RGB(0,255,0)); //set text color black
TextOut(hdc, 30, 15,"Keys 0-6 set the delay time", strlen("Keys 0-6 set the delay time")); //print text
TextOut(hdc, 30, 30,"Left and right arrows change gravity", strlen("Left and right arrows change gravity")); //print text
TextOut(hdc, 30, 45,"Up and down arrows change friction", strlen("Up and down arrows change friction")); //print text
TextOut(hdc, 30, 90,"S key starts over", strlen("S key starts over")); //print text
//variable text
sprintf(buffer,"Friction= ", friction);
sprintf(buffer2,"Gravity= ", gravity);
TextOut(hdc, 30, 60, buffer, strlen(buffer)); //print text
TextOut(hdc, 30, 75, buffer2, strlen(buffer2)); //print text
//--------End Text Info-------------------------
ReleaseDC(hwnd, hdc);
hdc= GetWindowDC(GetDesktopWindow());
//-------------Erasing ball----------------
//fill in rect struct for erasing ball
rect.left = ball_x[index] - BALL_RADIUS5;
rect.right = ball_x[index] + BALL_RADIUS5;
rect.top = ball_y[index] - BALL_RADIUS5;
rect.bottom = ball_y[index] + BALL_RADIUS5;
//Draw erasing ball in the old position
SelectObject(hdc, red_pen5);
SelectObject(hdc, red_brush5);
Ellipse(hdc,rect.left, rect.top, rect.right, rect.bottom);
//------------End Erasing ball----------------
//-------------Test to see whats going on-----------
//if the ball hits the ground, bounce back. The reason its here is because the erasing ball
//needs the old position to erase the drawing ball.
if(ball_y[index] >= iEndPos[index])
{
//velocity[index] = -velocity[index];
ball_y[index] = iEndPos[index]; //need to rest the y position because of >=, the y could be > 370
}
//allows user to restart balls in a new possition if they want to
//the reason its put here is so that if the user decides to restart, the erasing ball
//will erase the drawing ball, and won't leave ball marks all over.
if(startOver)
{
for(index=0; index<=14; index++) //start balls at random positions, set velocity = 0
{
ball_y[index]= -10;
ball_x[index]= rand()%2000;
iEndPos[index]= rand()%900;
velocity[index]= 0;
}//end for loop on index
startOver= false; //reset startOver back to false
}//end if on startOver
//--------------End Test to see whats going on
//-------------- Move the ball--------------
velocity[index]+= gravity* ( (diffrenceC_B*0.0009)*0.02);
velocity[index]*= friction;
ball_y[index]+= (int) velocity[index];
//-------------End Move the ball------------
//---------------Draw the Ball------------------
//Redraw the ball in its new position
//fill in rect struct for drawing ball
//ball 5
rect.left = ball_x[index] - BALL_RADIUS5;
rect.right = ball_x[index] + BALL_RADIUS5;
rect.top = ball_y [index] - BALL_RADIUS5;
rect.bottom = ball_y[index] + BALL_RADIUS5;
//Draw the ball in its new spot
SelectObject(hdc, red_pen5);
SelectObject(hdc, red_brush5);
Ellipse(hdc,rect.left, rect.top, rect.right, rect.bottom);
//end ball 5
//ball 4
rect.left = ball_x[index] - BALL_RADIUS4;
rect.right = ball_x[index] + BALL_RADIUS4;
rect.top = ball_y [index] - BALL_RADIUS4;
rect.bottom = ball_y[index] + BALL_RADIUS4;
//Draw the ball in its new spot
SelectObject(hdc, red_pen4);
SelectObject(hdc, red_brush4);
Ellipse(hdc,rect.left, rect.top, rect.right, rect.bottom);
//end ball 4
//ball 3
rect.left = ball_x[index] - BALL_RADIUS3;
rect.right = ball_x[index] + BALL_RADIUS3;
rect.top = ball_y [index] - BALL_RADIUS3;
rect.bottom = ball_y[index] + BALL_RADIUS3;
//Draw the ball in its new spot
SelectObject(hdc, red_pen3);
SelectObject(hdc, red_brush3);
Ellipse(hdc,rect.left, rect.top, rect.right, rect.bottom);
//end ball 3
//ball 2
rect.left = ball_x[index] - BALL_RADIUS2;
rect.right = ball_x[index] + BALL_RADIUS2;
rect.top = ball_y [index] - BALL_RADIUS2;
rect.bottom = ball_y[index] + BALL_RADIUS2;
//Draw the ball in its new spot
SelectObject(hdc, red_pen2);
SelectObject(hdc, red_brush2);
Ellipse(hdc,rect.left, rect.top, rect.right, rect.bottom);
//end ball 2
//ball 1
rect.left = ball_x[index] - BALL_RADIUS1;
rect.right = ball_x[index] + BALL_RADIUS1;
rect.top = ball_y [index] - BALL_RADIUS1;
rect.bottom = ball_y[index] + BALL_RADIUS1;
//Draw the ball in its new spot
SelectObject(hdc, red_pen1);
SelectObject(hdc, red_brush1);
Ellipse(hdc,rect.left, rect.top, rect.right, rect.bottom);
//end ball 1
//----------------End draw the ball---------------s
//if index increments to 14 (or last ball) start drawing from the
//begining again over again (meaning draw ball b0, b1,...b14 start back at b1)
index++;
if(index >=14)
index=0;
if(!QueryPerformanceCounter(&a))
{
MessageBox(hwnd, "Error on QueryPerformanceCounter()", NULL, MB_OK); //NULL is default for Error
return(0);
}
else
{
c = a.QuadPart;
diffrenceC_B= c-b;
}
//slow things down a bit
//Sleep(delay);
//Release device context
ReleaseDC(GetDesktopWindow(), hdc);
} // end while
// return to Windows like this
return(msg.wParam);
} // end WinMain
int Game_Main(void *parms)
{
// this is the workhorse of your game it will be called
// continuously in real-time this is like main() in C
// all the calls for you game go here!
static MATRIX4X4 mrot; // general rotation matrix
static float plight_ang = 0,
slight_ang = 0; // angles for light motion
// use these to rotate objects
static float x_ang = 0, y_ang = 0, z_ang = 0;
// state variables for different rendering modes and help
static int wireframe_mode = 1;
static int backface_mode = 1;
static int lighting_mode = 1;
static int help_mode = 1;
static int zsort_mode = -1;
static int x_clip_mode = 1;
static int y_clip_mode = 1;
static int z_clip_mode = 1;
static float hl = 300, // artificial light height
ks = 1.25; // generic scaling factor to make things look good
char work_string[256]; // temp string
int index; // looping var
// start the timing clock
Start_Clock();
// clear the drawing surface
DDraw_Fill_Surface(lpddsback, 0);
// draw the sky
Draw_Rectangle(0,0, WINDOW_WIDTH-1, WINDOW_HEIGHT-1, RGB16Bit(50,50,200), lpddsback);
// draw the ground
//Draw_Rectangle(0,WINDOW_HEIGHT*.38, WINDOW_WIDTH, WINDOW_HEIGHT, RGB16Bit(25,50,110), lpddsback);
// read keyboard and other devices here
DInput_Read_Keyboard();
// game logic here...
// reset the render list
Reset_RENDERLIST4DV2(&rend_list);
// modes and lights
// wireframe mode
if (keyboard_state[DIK_W])
{
// toggle wireframe mode
if (++wireframe_mode > 1)
wireframe_mode=0;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// backface removal
if (keyboard_state[DIK_B])
{
// toggle backface removal
backface_mode = -backface_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// lighting
if (keyboard_state[DIK_L])
{
// toggle lighting engine completely
lighting_mode = -lighting_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle ambient light
if (keyboard_state[DIK_A])
{
// toggle ambient light
if (lights2[AMBIENT_LIGHT_INDEX].state == LIGHTV2_STATE_ON)
lights2[AMBIENT_LIGHT_INDEX].state = LIGHTV2_STATE_OFF;
else
lights2[AMBIENT_LIGHT_INDEX].state = LIGHTV2_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle infinite light
if (keyboard_state[DIK_I])
{
// toggle ambient light
if (lights2[INFINITE_LIGHT_INDEX].state == LIGHTV2_STATE_ON)
lights2[INFINITE_LIGHT_INDEX].state = LIGHTV2_STATE_OFF;
else
lights2[INFINITE_LIGHT_INDEX].state = LIGHTV2_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle point light
if (keyboard_state[DIK_P])
{
// toggle point light
if (lights2[POINT_LIGHT_INDEX].state == LIGHTV2_STATE_ON)
lights2[POINT_LIGHT_INDEX].state = LIGHTV2_STATE_OFF;
else
lights2[POINT_LIGHT_INDEX].state = LIGHTV2_STATE_ON;
// toggle point light
if (lights2[POINT_LIGHT2_INDEX].state == LIGHTV2_STATE_ON)
lights2[POINT_LIGHT2_INDEX].state = LIGHTV2_STATE_OFF;
else
lights2[POINT_LIGHT2_INDEX].state = LIGHTV2_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// help menu
if (keyboard_state[DIK_H])
{
// toggle help menu
help_mode = -help_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// z-sorting
if (keyboard_state[DIK_Z])
{
// toggle z sorting
zsort_mode = -zsort_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// next animation
if (keyboard_state[DIK_2])
{
if (++obj_md2.anim_state >= NUM_MD2_ANIMATIONS)
obj_md2.anim_state = 0;
Set_Animation_MD2(&obj_md2, obj_md2.anim_state, MD2_ANIM_SINGLE_SHOT);
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// previous animation
if (keyboard_state[DIK_1])
{
if (--obj_md2.anim_state < 0)
obj_md2.anim_state = NUM_MD2_ANIMATIONS-1;
Set_Animation_MD2(&obj_md2, obj_md2.anim_state, MD2_ANIM_SINGLE_SHOT);
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// replay animation
if (keyboard_state[DIK_3])
{
Set_Animation_MD2(&obj_md2, obj_md2.anim_state, MD2_ANIM_SINGLE_SHOT);
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// replay animation
if (keyboard_state[DIK_4])
{
Set_Animation_MD2(&obj_md2, obj_md2.anim_state, MD2_ANIM_LOOP);
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// forward/backward
if (keyboard_state[DIK_UP])
{
// move forward
if ( (cam_speed+=1) > MAX_SPEED) cam_speed = MAX_SPEED;
} // end if
else
if (keyboard_state[DIK_DOWN])
{
// move backward
if ((cam_speed-=1) < -MAX_SPEED) cam_speed = -MAX_SPEED;
} // end if
// rotate around y axis or yaw
if (keyboard_state[DIK_RIGHT])
{
cam.dir.y+=5;
// scroll the background
Scroll_Bitmap(&background_bmp, -10);
} // end if
if (keyboard_state[DIK_LEFT])
{
cam.dir.y-=5;
// scroll the background
Scroll_Bitmap(&background_bmp, 10);
} // end if
// scroll sky slowly
Scroll_Bitmap(&background_bmp, -1);
// motion section /////////////////////////////////////////////////////////
// terrain following, simply find the current cell we are over and then
// index into the vertex list and find the 4 vertices that make up the
// quad cell we are hovering over and then average the values, and based
// on the current height and the height of the terrain push the player upward
// the terrain generates and stores some results to help with terrain following
//ivar1 = columns;
//ivar2 = rows;
//fvar1 = col_vstep;
//fvar2 = row_vstep;
int cell_x = (cam.pos.x + TERRAIN_WIDTH/2) / obj_terrain.fvar1;
int cell_y = (cam.pos.z + TERRAIN_HEIGHT/2) / obj_terrain.fvar1;
static float terrain_height, delta;
// test if we are on terrain
if ( (cell_x >=0) && (cell_x < obj_terrain.ivar1) && (cell_y >=0) && (cell_y < obj_terrain.ivar2) )
{
// compute vertex indices into vertex list of the current quad
int v0 = cell_x + cell_y*obj_terrain.ivar2;
int v1 = v0 + 1;
int v2 = v1 + obj_terrain.ivar2;
int v3 = v0 + obj_terrain.ivar2;
// now simply index into table
terrain_height = 0.25 * (obj_terrain.vlist_trans[v0].y + obj_terrain.vlist_trans[v1].y +
obj_terrain.vlist_trans[v2].y + obj_terrain.vlist_trans[v3].y);
// compute height difference
delta = terrain_height - (cam.pos.y - gclearance);
// test for penetration
if (delta > 0)
{
// apply force immediately to camera (this will give it a springy feel)
vel_y+=(delta * (VELOCITY_SCALER));
// test for pentration, if so move up immediately so we don't penetrate geometry
cam.pos.y+=(delta*CAM_HEIGHT_SCALER);
// now this is more of a hack than the physics model :) let move the front
// up and down a bit based on the forward velocity and the gradient of the
// hill
cam.dir.x -= (delta*PITCH_CHANGE_RATE);
} // end if
} // end if
// decelerate camera
if (cam_speed > (CAM_DECEL) ) cam_speed-=CAM_DECEL;
else
if (cam_speed < (-CAM_DECEL) ) cam_speed+=CAM_DECEL;
else
cam_speed = 0;
// force camera to seek a stable orientation
if (cam.dir.x > (neutral_pitch+PITCH_RETURN_RATE)) cam.dir.x -= (PITCH_RETURN_RATE);
else
if (cam.dir.x < (neutral_pitch-PITCH_RETURN_RATE)) cam.dir.x += (PITCH_RETURN_RATE);
else
cam.dir.x = neutral_pitch;
// apply gravity
vel_y+=gravity;
// test for absolute sea level and push upward..
if (cam.pos.y < sea_level)
{
vel_y = 0;
cam.pos.y = sea_level;
} // end if
// move camera
cam.pos.x += cam_speed*Fast_Sin(cam.dir.y);
cam.pos.z += cam_speed*Fast_Cos(cam.dir.y);
cam.pos.y += vel_y;
// move point light source in ellipse around game world
lights2[POINT_LIGHT_INDEX].pos.x = 500*Fast_Cos(plight_ang);
//lights2[POINT_LIGHT_INDEX].pos.y = 200;
lights2[POINT_LIGHT_INDEX].pos.z = 500*Fast_Sin(plight_ang);
// move point light source in ellipse around game world
lights2[POINT_LIGHT2_INDEX].pos.x = 200*Fast_Cos(-2*plight_ang);
//lights2[POINT_LIGHT2_INDEX].pos.y = 400;
lights2[POINT_LIGHT2_INDEX].pos.z = 200*Fast_Sin(-2*plight_ang);
if ((plight_ang+=1) > 360)
plight_ang = 0;
// generate camera matrix
Build_CAM4DV1_Matrix_Euler(&cam, CAM_ROT_SEQ_ZYX);
//////////////////////////////////////////////////////////////////////////
// the terrain
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&obj_terrain);
// generate rotation matrix around y axis
//Build_XYZ_Rotation_MATRIX4X4(x_ang, y_ang, z_ang, &mrot);
MAT_IDENTITY_4X4(&mrot);
// rotate the local coords of the object
Transform_OBJECT4DV2(&obj_terrain, &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(&obj_terrain, TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_terrain,0);
//////////////////////////////////////////////////////////////////////////
int v0, v1, v2, v3; // used to track vertices
VECTOR4D pl, // position of the light
po, // position of the occluder object/vertex
vlo, // vector from light to object
ps; // position of the shadow
float rs, // radius of shadow
t; // parameter t
//////////////////////////////////////////////////////////////////////////
// render model, this next section draws each copy of the mech model
//////////////////////////////////////////////////////////////////////////
// animate the model
Animate_MD2(&obj_md2);
// extract the frame of animation from vertex banks
Extract_MD2_Frame(&obj_model, // pointer to destination object
&obj_md2); // md2 object to extract frame from
// set position of object
obj_model.world_pos.x = 0;
obj_model.world_pos.y = 100;
obj_model.world_pos.z = 0;
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&obj_model);
// create identity matrix
MAT_IDENTITY_4X4(&mrot);
// transform the local coords of the object
Transform_OBJECT4DV2(&obj_model, &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(&obj_model, TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_model,0);
// set position of object
obj_model.world_pos.x = 0;
obj_model.world_pos.y = 100;
obj_model.world_pos.z = 200;
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&obj_model);
// create identity matrix
MAT_IDENTITY_4X4(&mrot);
// transform the local coords of the object
Transform_OBJECT4DV2(&obj_model, &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(&obj_model, TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_model,0);
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
// draw all the light objects to represent the position of light sources
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&obj_light_array[INDEX_RED_LIGHT_INDEX]);
// set position of object to light
obj_light_array[INDEX_RED_LIGHT_INDEX].world_pos = lights2[POINT_LIGHT_INDEX].pos;
// create identity matrix
MAT_IDENTITY_4X4(&mrot);
// transform the local coords of the object
Transform_OBJECT4DV2(&obj_light_array[INDEX_RED_LIGHT_INDEX], &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(&obj_light_array[INDEX_RED_LIGHT_INDEX], TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_light_array[INDEX_RED_LIGHT_INDEX],0);
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&obj_light_array[INDEX_YELLOW_LIGHT_INDEX]);
// set position of object to light
obj_light_array[INDEX_YELLOW_LIGHT_INDEX].world_pos = lights2[POINT_LIGHT2_INDEX].pos;
// create identity matrix
MAT_IDENTITY_4X4(&mrot);
// transform the local coords of the object
Transform_OBJECT4DV2(&obj_light_array[INDEX_YELLOW_LIGHT_INDEX], &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(&obj_light_array[INDEX_YELLOW_LIGHT_INDEX], TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_light_array[INDEX_YELLOW_LIGHT_INDEX],0);
////////////////////////////////////////////////////////////////////////////////////
// reset number of polys rendered
debug_polys_rendered_per_frame = 0;
debug_polys_lit_per_frame = 0;
// perform rendering pass one
// remove backfaces
if (backface_mode==1)
Remove_Backfaces_RENDERLIST4DV2(&rend_list, &cam);
// apply world to camera transform
World_To_Camera_RENDERLIST4DV2(&rend_list, &cam);
// clip the polygons themselves now
Clip_Polys_RENDERLIST4DV2(&rend_list, &cam, CLIP_POLY_X_PLANE | CLIP_POLY_Y_PLANE | CLIP_POLY_Z_PLANE );
// light scene all at once
if (lighting_mode==1)
{
Transform_LIGHTSV2(lights2, 4, &cam.mcam, TRANSFORM_LOCAL_TO_TRANS);
Light_RENDERLIST4DV2_World2_16(&rend_list, &cam, lights2, 4);
} // end if
// sort the polygon list (hurry up!)
if (zsort_mode == 1)
Sort_RENDERLIST4DV2(&rend_list, SORT_POLYLIST_AVGZ);
// apply camera to perspective transformation
Camera_To_Perspective_RENDERLIST4DV2(&rend_list, &cam);
// apply screen transform
Perspective_To_Screen_RENDERLIST4DV2(&rend_list, &cam);
// lock the back buffer
DDraw_Lock_Back_Surface();
// draw background
Draw_Bitmap16(&background_bmp, back_buffer, back_lpitch,0);
// reset number of polys rendered
debug_polys_rendered_per_frame = 0;
// render the object
if (wireframe_mode == 0)
Draw_RENDERLIST4DV2_Wire16(&rend_list, back_buffer, back_lpitch);
else
if (wireframe_mode == 1)
{
// perspective mode affine texturing
// set up rendering context
rc.attr = RENDER_ATTR_ZBUFFER
// | RENDER_ATTR_ALPHA
// | RENDER_ATTR_MIPMAP
// | RENDER_ATTR_BILERP
| RENDER_ATTR_TEXTURE_PERSPECTIVE_AFFINE;
// initialize zbuffer to 0 fixed point
Clear_Zbuffer(&zbuffer, (16000 << FIXP16_SHIFT));
// set up remainder of rendering context
rc.video_buffer = back_buffer;
rc.lpitch = back_lpitch;
rc.mip_dist = 0;
rc.zbuffer = (UCHAR *)zbuffer.zbuffer;
rc.zpitch = WINDOW_WIDTH*4;
rc.rend_list = &rend_list;
rc.texture_dist = 0;
rc.alpha_override = -1;
// render scene
Draw_RENDERLIST4DV2_RENDERCONTEXTV1_16_2(&rc);
} // end if
// now make second rendering pass and draw shadow
// reset the render list
Reset_RENDERLIST4DV2(&rend_list);
//////////////////////////////////////////////////////////////////////////
// project shaded object into shadow by projecting it's vertices onto
// the ground plane
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&obj_model);
// save the shading attributes/color of each polygon, and override them with
// attributes of a shadow then restore them
int pcolor[OBJECT4DV2_MAX_POLYS], // used to store color
pattr[OBJECT4DV2_MAX_POLYS]; // used to store attribute
// save all the color and attributes for each polygon
for (int pindex = 0; pindex < obj_model.num_polys; pindex++)
{
// save attribute and color
pattr[pindex] = obj_model.plist[pindex].attr;
pcolor[pindex] = obj_model.plist[pindex].color;
// set attributes for shadow rendering
obj_model.plist[pindex].attr = POLY4DV2_ATTR_RGB16 | POLY4DV2_ATTR_SHADE_MODE_CONSTANT | POLY4DV2_ATTR_TRANSPARENT;
obj_model.plist[pindex].color = RGB16Bit(50,50,50) + (7 << 24);
} // end for pindex
// create identity matrix
MAT_IDENTITY_4X4(&mrot);
// solve for t when the projected vertex intersects ground plane
pl = lights2[POINT_LIGHT_INDEX].pos;
// transform each local/model vertex of the object mesh and store result
// in "transformed" vertex list, note
for (int vertex=0; vertex < obj_model.num_vertices; vertex++)
{
POINT4D presult; // hold result of each transformation
// compute parameter t0 when projected ray pierces y=0 plane
VECTOR4D vi;
// set position of object
obj_model.world_pos.x = 0;
obj_model.world_pos.y = 100;
obj_model.world_pos.z = 0;
// transform coordinates to worldspace right now...
VECTOR4D_Add(&obj_model.vlist_local[vertex].v, &obj_model.world_pos, &vi);
float t0 = -pl.y / (vi.y - pl.y);
// transform point
obj_model.vlist_trans[vertex].v.x = pl.x + t0*(vi.x - pl.x);
obj_model.vlist_trans[vertex].v.y = 10.0; // pl.y + t0*(vi.y - pl.y);
obj_model.vlist_trans[vertex].v.z = pl.z + t0*(vi.z - pl.z);
obj_model.vlist_trans[vertex].v.w = 1.0;
} // end for index
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_model,0);
// and now second shadow object from second light source...
// solve for t when the projected vertex intersects
pl = lights2[POINT_LIGHT_INDEX].pos;
// transform each local/model vertex of the object mesh and store result
// in "transformed" vertex list
for (vertex=0; vertex < obj_model.num_vertices; vertex++)
{
POINT4D presult; // hold result of each transformation
// compute parameter t0 when projected ray pierces y=0 plane
VECTOR4D vi;
// set position of object
obj_model.world_pos.x = 0;
obj_model.world_pos.y = 100;
obj_model.world_pos.z = 200;
// transform coordinates to worldspace right now...
VECTOR4D_Add(&obj_model.vlist_local[vertex].v, &obj_model.world_pos, &vi);
float t0 = -pl.y / (vi.y - pl.y);
// transform point
obj_model.vlist_trans[vertex].v.x = pl.x + t0*(vi.x - pl.x);
obj_model.vlist_trans[vertex].v.y = 10.0; // pl.y + t0*(vi.y - pl.y);
obj_model.vlist_trans[vertex].v.z = pl.z + t0*(vi.z - pl.z);
obj_model.vlist_trans[vertex].v.w = 1.0;
} // end for index
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_model,0);
// restore attributes and color
for (pindex = 0; pindex < obj_model.num_polys; pindex++)
{
// save attribute and color
obj_model.plist[pindex].attr = pattr[pindex];
obj_model.plist[pindex].color = pcolor[pindex];
} // end for pindex
//////////////////////////////////////////////////////////////////////////
// remove backfaces
if (backface_mode==1)
Remove_Backfaces_RENDERLIST4DV2(&rend_list, &cam);
// apply world to camera transform
World_To_Camera_RENDERLIST4DV2(&rend_list, &cam);
// clip the polygons themselves now
Clip_Polys_RENDERLIST4DV2(&rend_list, &cam, CLIP_POLY_X_PLANE | CLIP_POLY_Y_PLANE | CLIP_POLY_Z_PLANE );
// light scene all at once
if (lighting_mode==1)
{
Transform_LIGHTSV2(lights2, 4, &cam.mcam, TRANSFORM_LOCAL_TO_TRANS);
Light_RENDERLIST4DV2_World2_16(&rend_list, &cam, lights2, 4);
} // end if
// sort the polygon list (hurry up!)
if (zsort_mode == 1)
Sort_RENDERLIST4DV2(&rend_list, SORT_POLYLIST_AVGZ);
// apply camera to perspective transformation
Camera_To_Perspective_RENDERLIST4DV2(&rend_list, &cam);
// apply screen transform
Perspective_To_Screen_RENDERLIST4DV2(&rend_list, &cam);
// render the object
if (wireframe_mode == 0)
Draw_RENDERLIST4DV2_Wire16(&rend_list, back_buffer, back_lpitch);
else
if (wireframe_mode == 1)
{
// perspective mode affine texturing
// set up rendering context
rc.attr = RENDER_ATTR_ZBUFFER
| RENDER_ATTR_ALPHA
// | RENDER_ATTR_MIPMAP
// | RENDER_ATTR_BILERP
| RENDER_ATTR_TEXTURE_PERSPECTIVE_AFFINE;
// initialize zbuffer to 0 fixed point
//Clear_Zbuffer(&zbuffer, (16000 << FIXP16_SHIFT));
// set up remainder of rendering context
rc.video_buffer = back_buffer;
rc.lpitch = back_lpitch;
rc.mip_dist = 0;
rc.zbuffer = (UCHAR *)zbuffer.zbuffer;
rc.zpitch = WINDOW_WIDTH*4;
rc.rend_list = &rend_list;
rc.texture_dist = 0;
rc.alpha_override = -1;
// render scene
Draw_RENDERLIST4DV2_RENDERCONTEXTV1_16_3(&rc);
} // end if
// unlock the back buffer
DDraw_Unlock_Back_Surface();
// draw cockpit
//Draw_BOB16(&cockpit, lpddsback);
// draw instructions
Draw_Text_GDI("Press ESC to exit. Press <H> for Help.", 0, 0, RGB(255,255,255), lpddsback);
// should we display help
int text_y = 16;
if (help_mode==1)
{
// draw help menu
Draw_Text_GDI("<A>..............Toggle ambient light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<I>..............Toggle infinite light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<P>..............Toggle point light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<W>..............Toggle wire frame/solid mode.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<B>..............Toggle backface removal.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<Z>..............Toggle Z-sorting.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<1>,<2>..........Previous/Next Animation.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<3>,<4>..........Play Animation Single Shot/Looped.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<H>..............Toggle Help.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<ESC>............Exit demo.", 0, text_y+=12, RGB(255,255,255), lpddsback);
} // end help
sprintf(work_string,"Lighting [%s]: Ambient=%d, Infinite=%d, Point=%d, BckFceRM [%s], Zsort[%s]",
((lighting_mode == 1) ? "ON" : "OFF"),
lights2[AMBIENT_LIGHT_INDEX].state,
lights2[INFINITE_LIGHT_INDEX].state,
lights2[POINT_LIGHT_INDEX].state,
((backface_mode == 1) ? "ON" : "OFF"),
((zsort_mode == 1) ? "ON" : "OFF") );
Draw_Text_GDI(work_string, 0+1, WINDOW_HEIGHT-34+1, RGB(0,0,0), lpddsback);
Draw_Text_GDI(work_string, 0, WINDOW_HEIGHT-34, RGB(255,255,255), lpddsback);
sprintf(work_string,"Polys Rendered: %d, Polys lit: %d Anim[%d]=%s Frm=%d", debug_polys_rendered_per_frame, debug_polys_lit_per_frame, obj_md2.anim_state,md2_anim_strings[obj_md2.anim_state], obj_md2.curr_frame );
Draw_Text_GDI(work_string, 0+1, WINDOW_HEIGHT-34-2*16+1, RGB(0,0,0), lpddsback);
Draw_Text_GDI(work_string, 0, WINDOW_HEIGHT-34-2*16, RGB(255,255,255), lpddsback);
sprintf(work_string,"CAM [%5.2f, %5.2f, %5.2f], CELL [%d, %d]", cam.pos.x, cam.pos.y, cam.pos.z, cell_x, cell_y);
Draw_Text_GDI(work_string, 0+1, WINDOW_HEIGHT-34-3*16+1, RGB(0,0,0), lpddsback);
Draw_Text_GDI(work_string, 0, WINDOW_HEIGHT-34-3*16, RGB(255,255,255), lpddsback);
// flip the surfaces
DDraw_Flip2();
// sync to 30ish fps
Wait_Clock(30);
// check of user is trying to exit
if (KEY_DOWN(VK_ESCAPE) || keyboard_state[DIK_ESCAPE])
{
PostMessage(main_window_handle, WM_DESTROY,0,0);
} // end if
// return success
return(1);
} // end Game_Main
int Game_Main(void *parms)
{
// this is the workhorse of your game it will be called
// continuously in real-time this is like main() in C
// all the calls for you game go here!
static MATRIX4X4 mrot; // general rotation matrix
// these are used to create a circling camera
static float view_angle = 0;
static float camera_distance = 6000;
static VECTOR4D pos = {0,0,0,0};
static float tank_speed;
static float turning = 0;
// state variables for different rendering modes and help
static int wireframe_mode = 1;
static int backface_mode = 1;
static int lighting_mode = 1;
static int help_mode = 1;
static int zsort_mode = 1;
char work_string[256]; // temp string
int index; // looping var
// start the timing clock
Start_Clock();
// clear the drawing surface
//DDraw_Fill_Surface(lpddsback, 0);
#if 1
// draw the sky
//Draw_Rectangle(0,0, WINDOW_WIDTH-1, WINDOW_HEIGHT/2, 166, lpddsback);
//Draw_Rectangle(0,WINDOW_HEIGHT/2, WINDOW_WIDTH-1, WINDOW_HEIGHT-1, rgblookup[RGB16Bit565(115,42,16)], lpddsback);
//Draw_Rectangle(0,0, WINDOW_WIDTH-1, WINDOW_HEIGHT/2, rgblookup[RGB16Bit565(0,140,192)], lpddsback);
//Draw_Rectangle(0,0, WINDOW_WIDTH-1, WINDOW_HEIGHT/2, RGB16Bit(0,140,192), lpddsback);
Draw_Rectangle(0,0, WINDOW_WIDTH, WINDOW_HEIGHT/2, RGB16Bit(0,35,50), lpddsback);
// draw the ground
//Draw_Rectangle(0,WINDOW_HEIGHT/2, WINDOW_WIDTH-1, WINDOW_HEIGHT-1, 28, lpddsback);
//Draw_Rectangle(0,WINDOW_HEIGHT/2, WINDOW_WIDTH-1, WINDOW_HEIGHT-1, rgblookup[RGB16Bit565(115,42,16)], lpddsback);
//Draw_Rectangle(0,WINDOW_HEIGHT/2, WINDOW_WIDTH-1, WINDOW_HEIGHT-1, RGB16Bit(103,62,3), lpddsback);
Draw_Rectangle(0,WINDOW_HEIGHT/2-1, WINDOW_WIDTH, WINDOW_HEIGHT, RGB16Bit(20,12,0), lpddsback);
// read keyboard and other devices here
DInput_Read_Keyboard();
// game logic here...
// reset the render list
Reset_RENDERLIST4DV2(&rend_list);
// allow user to move camera
// turbo
if (keyboard_state[DIK_SPACE])
tank_speed = 5*TANK_SPEED;
else
tank_speed = TANK_SPEED;
// forward/backward
if (keyboard_state[DIK_UP])
{
// move forward
cam.pos.x += tank_speed*Fast_Sin(cam.dir.y);
cam.pos.z += tank_speed*Fast_Cos(cam.dir.y);
} // end if
if (keyboard_state[DIK_DOWN])
{
// move backward
cam.pos.x -= tank_speed*Fast_Sin(cam.dir.y);
cam.pos.z -= tank_speed*Fast_Cos(cam.dir.y);
} // end if
// rotate
if (keyboard_state[DIK_RIGHT])
{
cam.dir.y+=3;
// add a little turn to object
if ((turning+=2) > 25)
turning=25;
} // end if
if (keyboard_state[DIK_LEFT])
{
cam.dir.y-=3;
// add a little turn to object
if ((turning-=2) < -25)
turning=-25;
} // end if
else // center heading again
{
if (turning > 0)
turning-=1;
else
if (turning < 0)
turning+=1;
} // end else
// modes and lights
// wireframe mode
if (keyboard_state[DIK_W])
{
// toggle wireframe mode
if (++wireframe_mode > 1)
wireframe_mode=0;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// backface removal
if (keyboard_state[DIK_B])
{
// toggle backface removal
backface_mode = -backface_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// lighting
if (keyboard_state[DIK_L])
{
// toggle lighting engine completely
lighting_mode = -lighting_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle ambient light
if (keyboard_state[DIK_A])
{
// toggle ambient light
if (lights[AMBIENT_LIGHT_INDEX].state == LIGHTV1_STATE_ON)
lights[AMBIENT_LIGHT_INDEX].state = LIGHTV1_STATE_OFF;
else
lights[AMBIENT_LIGHT_INDEX].state = LIGHTV1_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle infinite light
if (keyboard_state[DIK_I])
{
// toggle ambient light
if (lights[INFINITE_LIGHT_INDEX].state == LIGHTV1_STATE_ON)
lights[INFINITE_LIGHT_INDEX].state = LIGHTV1_STATE_OFF;
else
lights[INFINITE_LIGHT_INDEX].state = LIGHTV1_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle point light
if (keyboard_state[DIK_P])
{
// toggle point light
if (lights[POINT_LIGHT_INDEX].state == LIGHTV1_STATE_ON)
lights[POINT_LIGHT_INDEX].state = LIGHTV1_STATE_OFF;
else
lights[POINT_LIGHT_INDEX].state = LIGHTV1_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle spot light
if (keyboard_state[DIK_S])
{
// toggle spot light
if (lights[SPOT_LIGHT2_INDEX].state == LIGHTV1_STATE_ON)
lights[SPOT_LIGHT2_INDEX].state = LIGHTV1_STATE_OFF;
else
lights[SPOT_LIGHT2_INDEX].state = LIGHTV1_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// help menu
if (keyboard_state[DIK_H])
{
// toggle help menu
help_mode = -help_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// z-sorting
if (keyboard_state[DIK_Z])
{
// toggle z sorting
zsort_mode = -zsort_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
static float plight_ang = 0, slight_ang = 0; // angles for light motion
// move point light source in ellipse around game world
lights[POINT_LIGHT_INDEX].pos.x = 4000*Fast_Cos(plight_ang);
lights[POINT_LIGHT_INDEX].pos.y = 200;
lights[POINT_LIGHT_INDEX].pos.z = 4000*Fast_Sin(plight_ang);
if ((plight_ang+=3) > 360)
plight_ang = 0;
// move spot light source in ellipse around game world
lights[SPOT_LIGHT2_INDEX].pos.x = 2000*Fast_Cos(slight_ang);
lights[SPOT_LIGHT2_INDEX].pos.y = 200;
lights[SPOT_LIGHT2_INDEX].pos.z = 2000*Fast_Sin(slight_ang);
if ((slight_ang-=5) < 0)
slight_ang = 360;
// generate camera matrix
Build_CAM4DV1_Matrix_Euler(&cam, CAM_ROT_SEQ_ZYX);
// insert the player into the world
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&obj_player);
// set position of tank
obj_player.world_pos.x = cam.pos.x+300*Fast_Sin(cam.dir.y);
obj_player.world_pos.y = cam.pos.y-70;
obj_player.world_pos.z = cam.pos.z+300*Fast_Cos(cam.dir.y);
// generate rotation matrix around y axis
static int turn=0;
Build_XYZ_Rotation_MATRIX4X4(1, cam.dir.y+turning, 2, &mrot);
// rotate the local coords of the object
Transform_OBJECT4DV2(&obj_player, &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(&obj_player, TRANSFORM_TRANS_ONLY);
//Light_OBJECT4DV2_World16(&obj_player, &cam, lights, 4);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_player,0);
#if 1
//////////////////////////////////////////////////////////
// insert the tanks in the world
for (index = 0; index < NUM_TANKS; index++)
{
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&obj_tank);
// generate rotation matrix around y axis
Build_XYZ_Rotation_MATRIX4X4(0, tanks[index].w, 0, &mrot);
// rotate the local coords of the object
Transform_OBJECT4DV2(&obj_tank, &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// set position of tank
obj_tank.world_pos.x = tanks[index].x;
obj_tank.world_pos.y = tanks[index].y;
obj_tank.world_pos.z = tanks[index].z;
// attempt to cull object
if (!Cull_OBJECT4DV2(&obj_tank, &cam, CULL_OBJECT_XYZ_PLANES))
{
// if we get here then the object is visible at this world position
// so we can insert it into the rendering list
// perform local/model to world transform
Model_To_World_OBJECT4DV2(&obj_tank, TRANSFORM_TRANS_ONLY);
//Light_OBJECT4DV2_World16(&obj_tank, &cam, lights, 4);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_tank,0);
} // end if
} // end for
////////////////////////////////////////////////////////
// insert the towers in the world
for (index = 0; index < NUM_TOWERS; index++)
{
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&obj_tower);
// set position of tower
obj_tower.world_pos.x = towers[index].x;
obj_tower.world_pos.y = towers[index].y;
obj_tower.world_pos.z = towers[index].z;
// attempt to cull object
if (!Cull_OBJECT4DV2(&obj_tower, &cam, CULL_OBJECT_XYZ_PLANES))
{
// if we get here then the object is visible at this world position
// so we can insert it into the rendering list
// perform local/model to world transform
Model_To_World_OBJECT4DV2(&obj_tower);
//Light_OBJECT4DV2_World16(&obj_tower, &cam, lights, 4);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_tower,0);
} // end if
} // end for
///////////////////////////////////////////////////////////////
// seed number generator so that modulation of markers is always the same
srand(13);
static int mcount = 0, mdir = 2;
mcount+=mdir;
if (mcount > 200 || mcount < -200) { mdir=-mdir; mcount+=mdir; }
// insert the ground markers into the world
for (int index_x = 0; index_x < NUM_POINTS_X; index_x++)
for (int index_z = 0; index_z < NUM_POINTS_Z; index_z++)
{
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&obj_marker);
// set position of tower
obj_marker.world_pos.x = RAND_RANGE(-100,100)-UNIVERSE_RADIUS+index_x*POINT_SIZE;
obj_marker.world_pos.y = obj_marker.max_radius[0] + 50*Fast_Sin(index_x*10+Fast_Sin(index_z)+mcount);
obj_marker.world_pos.z = RAND_RANGE(-100,100)-UNIVERSE_RADIUS+index_z*POINT_SIZE;
// attempt to cull object
if (!Cull_OBJECT4DV2(&obj_marker, &cam, CULL_OBJECT_XYZ_PLANES))
{
// if we get here then the object is visible at this world position
// so we can insert it into the rendering list
// perform local/model to world transform
Model_To_World_OBJECT4DV2(&obj_marker);
//Light_OBJECT4DV2_World16(&obj_marker, &cam, lights, 4);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_marker,0);
} // end if
} // end for
////////////////////////////////////////////////////////////////////////
#endif
// remove backfaces
if (backface_mode==1)
Remove_Backfaces_RENDERLIST4DV2(&rend_list, &cam);
// light scene all at once
if (lighting_mode==1)
Light_RENDERLIST4DV2_World16(&rend_list, &cam, lights, 4);
// apply world to camera transform
World_To_Camera_RENDERLIST4DV2(&rend_list, &cam);
// sort the polygon list (hurry up!)
if (zsort_mode == 1)
Sort_RENDERLIST4DV2(&rend_list, SORT_POLYLIST_AVGZ);
// apply camera to perspective transformation
Camera_To_Perspective_RENDERLIST4DV2(&rend_list, &cam);
// apply screen transform
Perspective_To_Screen_RENDERLIST4DV2(&rend_list, &cam);
sprintf(work_string,"pos:[%f, %f, %f] heading:[%f] elev:[%f], polys[%d]",
cam.pos.x, cam.pos.y, cam.pos.z, cam.dir.y, cam.dir.x, debug_polys_rendered_per_frame);
Draw_Text_GDI(work_string, 0, WINDOW_HEIGHT-20, RGB(0,255,0), lpddsback);
sprintf(work_string,"Lighting [%s]: Ambient=%d, Infinite=%d, Point=%d, Spot=%d | Zsort [%s], BckFceRM [%s]",
((lighting_mode == 1) ? "ON" : "OFF"),
lights[AMBIENT_LIGHT_INDEX].state,
lights[INFINITE_LIGHT_INDEX].state,
lights[POINT_LIGHT_INDEX].state,
lights[SPOT_LIGHT2_INDEX].state,
((zsort_mode == 1) ? "ON" : "OFF"),
((backface_mode == 1) ? "ON" : "OFF"));
Draw_Text_GDI(work_string, 0, WINDOW_HEIGHT-34, RGB(0,255,0), lpddsback);
// draw instructions
Draw_Text_GDI("Press ESC to exit. Press <H> for Help.", 0, 0, RGB(0,255,0), lpddsback);
// should we display help
int text_y = 16;
if (help_mode==1)
{
// draw help menu
Draw_Text_GDI("<A>..............Toggle ambient light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<I>..............Toggle infinite light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<P>..............Toggle point light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<S>..............Toggle spot light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<W>..............Toggle wire frame/solid mode.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<B>..............Toggle backface removal.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<RIGHT ARROW>....Rotate player right.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<LEFT ARROW>.....Rotate player left.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<UP ARROW>.......Move player forward.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<DOWN ARROW>.....Move player backward.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<SPACE BAR>......Turbo.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<H>..............Toggle Help.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<ESC>............Exit demo.", 0, text_y+=12, RGB(255,255,255), lpddsback);
} // end help
// lock the back buffer
DDraw_Lock_Back_Surface();
// reset number of polys rendered
debug_polys_rendered_per_frame = 0;
// render the object
if (wireframe_mode == 0)
Draw_RENDERLIST4DV2_Wire16(&rend_list, back_buffer, back_lpitch);
else
if (wireframe_mode == 1)
Draw_RENDERLIST4DV2_Solid16(&rend_list, back_buffer, back_lpitch);
#endif
// unlock the back buffer
DDraw_Unlock_Back_Surface();
// flip the surfaces
DDraw_Flip();
// sync to 30ish fps
Wait_Clock(30);
// check of user is trying to exit
if (KEY_DOWN(VK_ESCAPE) || keyboard_state[DIK_ESCAPE])
{
PostMessage(main_window_handle, WM_DESTROY,0,0);
} // end if
// return success
return(1);
} // end Game_Main
// --------------------------------------------------------------------------
// main(Number of arguments, Argument values)
// Description : This is the entry point of the program.
// Return value : SUCCESS:0 ERROR:-1
// --------------------------------------------------------------------------
int main(int argc, char **argv)
{
// AR.Drone class
ARDrone ardrone;
// Initialize
if (!ardrone.open()) {
printf("Failed to initialize.\n");
return -1;
}
// Battery
int battery = ardrone.getBatteryPercentage();
printf("ardrone.battery = %d [%%]\n", battery);
// Instructions
printf("***************************************\n");
printf("* CV Drone sample program *\n");
printf("* - Haw To Play - *\n");
printf("***************************************\n");
printf("* *\n");
printf("* - Controls - *\n");
printf("* 'Space' -- Takeoff/Landing *\n");
printf("* 'Up' -- Move forward *\n");
printf("* 'Down' -- Move backward *\n");
printf("* 'Left' -- Turn left *\n");
printf("* 'Right' -- Turn right *\n");
printf("* 'Shift+Up' -- Move upward *\n");
printf("* 'Shift+Down' -- Move downward *\n");
printf("* 'Shift+Left' -- Move left *\n");
printf("* 'Shift+Right' -- Move right *\n");
printf("* *\n");
printf("* - Others - *\n");
printf("* 'C' -- Change camera *\n");
printf("* 'Esc' -- Exit *\n");
printf("* *\n");
printf("***************************************\n\n");
// Main loop
while (!GetAsyncKeyState(VK_ESCAPE)) {
// Update
if (!ardrone.update()) break;
// Get an image
IplImage *image = ardrone.getImage();
// Take off / Landing
if (KEY_PUSH(VK_SPACE)) {
if (ardrone.onGround()) ardrone.takeoff();
else ardrone.landing();
}
// Move
double vx = 0.0, vy = 0.0, vz = 0.0, vr = 0.0;
if (KEY_DOWN(VK_SHIFT)) {
if (KEY_DOWN(VK_UP)) vz = 1.0;
if (KEY_DOWN(VK_DOWN)) vz = -1.0;
if (KEY_DOWN(VK_LEFT)) vy = 1.0;
if (KEY_DOWN(VK_RIGHT)) vy = -1.0;
}
else {
if (KEY_DOWN(VK_UP)) vx = 1.0;
if (KEY_DOWN(VK_DOWN)) vx = -1.0;
if (KEY_DOWN(VK_LEFT)) vr = 1.0;
if (KEY_DOWN(VK_RIGHT)) vr = -1.0;
}
ardrone.move3D(vx, vy, vz, vr);
// Change camera
static int mode = 0;
if (KEY_PUSH('C')) ardrone.setCamera(++mode%4);
// Display the image
cvShowImage("camera", image);
cvWaitKey(1);
}
// See you
ardrone.close();
return 0;
}
int Game_Main(void *parms, int num_parms)
{
// this is the workhorse of your game it will be called
// continuously in real-time this is like main() in C
// all the calls for you game go here!
int index; // looping var
int dx,dy; // general deltas used in collision detection
static int player_moving = 0; // tracks player motion
static PALETTEENTRY glow = {0,0,0,PC_NOCOLLAPSE}; // used to animation red border
static int glow_count = 0, glow_dx = 5;
// check of user is trying to exit
if (KEY_DOWN(VK_ESCAPE) || KEY_DOWN(VK_SPACE))
PostMessage(main_window_handle, WM_DESTROY,0,0);
// start the timing clock
Start_Clock();
// clear the drawing surface
DDraw_Fill_Surface(lpddsback, 0);
// lock the back buffer
DDraw_Lock_Back_Surface();
// draw the background reactor image
Draw_Bitmap(&reactor, back_buffer, back_lpitch, 0);
// unlock the back buffer
DDraw_Unlock_Back_Surface();
// get player input
// get the keyboard data
DInput_Read_Keyboard();
// reset motion flag
player_moving = 0;
// test direction of motion, this is a good example of testing the keyboard
// although the code could be optimized this is more educational
if (keyboard_state[DIK_RIGHT] && keyboard_state[DIK_UP])
{
// move skelaton
skelaton.x+=2;
skelaton.y-=2;
dx=2; dy=-2;
// set motion flag
player_moving = 1;
// check animation needs to change
if (skelaton.curr_animation != SKELATON_NEAST)
Set_Animation_BOB(&skelaton,SKELATON_NEAST);
} // end if
else
if (keyboard_state[DIK_LEFT] && keyboard_state[DIK_UP])
{
// move skelaton
skelaton.x-=2;
skelaton.y-=2;
dx=-2; dy=-2;
// set motion flag
player_moving = 1;
// check animation needs to change
if (skelaton.curr_animation != SKELATON_NWEST)
Set_Animation_BOB(&skelaton,SKELATON_NWEST);
} // end if
else
if (keyboard_state[DIK_LEFT] && keyboard_state[DIK_DOWN])
{
// move skelaton
skelaton.x-=2;
skelaton.y+=2;
dx=-2; dy=2;
// set motion flag
player_moving = 1;
// check animation needs to change
if (skelaton.curr_animation != SKELATON_SWEST)
Set_Animation_BOB(&skelaton,SKELATON_SWEST);
} // end if
else
if (keyboard_state[DIK_RIGHT] && keyboard_state[DIK_DOWN])
{
// move skelaton
skelaton.x+=2;
skelaton.y+=2;
dx=2; dy=2;
// set motion flag
player_moving = 1;
// check animation needs to change
if (skelaton.curr_animation != SKELATON_SEAST)
Set_Animation_BOB(&skelaton,SKELATON_SEAST);
} // end if
else
if (keyboard_state[DIK_RIGHT])
{
// move skelaton
skelaton.x+=2;
dx=2; dy=0;
// set motion flag
player_moving = 1;
// check animation needs to change
if (skelaton.curr_animation != SKELATON_EAST)
Set_Animation_BOB(&skelaton,SKELATON_EAST);
} // end if
else
if (keyboard_state[DIK_LEFT])
{
// move skelaton
skelaton.x-=2;
dx=-2; dy=0;
// set motion flag
player_moving = 1;
// check animation needs to change
if (skelaton.curr_animation != SKELATON_WEST)
Set_Animation_BOB(&skelaton,SKELATON_WEST);
} // end if
else
if (keyboard_state[DIK_UP])
{
// move skelaton
skelaton.y-=2;
dx=0; dy=-2;
// set motion flag
player_moving = 1;
// check animation needs to change
if (skelaton.curr_animation != SKELATON_NORTH)
Set_Animation_BOB(&skelaton,SKELATON_NORTH);
} // end if
else
if (keyboard_state[DIK_DOWN])
{
// move skelaton
skelaton.y+=2;
dx=0; dy=+2;
// set motion flag
player_moving = 1;
// check animation needs to change
if (skelaton.curr_animation != SKELATON_SOUTH)
Set_Animation_BOB(&skelaton,SKELATON_SOUTH);
} // end if
// only animate if player is moving
if (player_moving)
{
// animate skelaton
Animate_BOB(&skelaton);
// see if skelaton hit a wall
// lock surface, so we can scan it
DDraw_Lock_Back_Surface();
// call the color scanner with WALL_ANIMATION_COLOR, the color of the glowing wall
// try to center the scan in the center of the object to make it
// more realistic
if (Color_Scan(skelaton.x+16, skelaton.y+16,
skelaton.x+skelaton.width-16, skelaton.y+skelaton.height-16,
WALL_ANIMATION_COLOR, WALL_ANIMATION_COLOR, back_buffer,back_lpitch))
{
// back the skelaton up along its last trajectory
skelaton.x-=dx;
skelaton.y-=dy;
} // end if
// done, so unlock
DDraw_Unlock_Back_Surface();
// check if skelaton is off screen
if (skelaton.x < 0 || skelaton.x > (screen_width - skelaton.width))
skelaton.x-=dx;
if (skelaton.y < 0 || skelaton.y > (screen_height - skelaton.height))
skelaton.y-=dy;
} // end if
// draw the skelaton
Draw_BOB(&skelaton, lpddsback);
// animate color
glow.peGreen+=glow_dx;
// test boundary
if (glow.peGreen == 0 || glow.peGreen == 255)
glow_dx = -glow_dx;
Set_Palette_Entry(WALL_ANIMATION_COLOR, &glow);
// draw some text
Draw_Text_GDI("I STILL HAVE A BONE TO PICK!",0,screen_height - 32,WALL_ANIMATION_COLOR,lpddsback);
Draw_Text_GDI("USE ARROW KEYS TO MOVE, <ESC> TO EXIT.",0,0,RGB(32,32,32),lpddsback);
// flip the surfaces
DDraw_Flip();
// sync to 30 fps
Wait_Clock(30);
// return success
return(1);
} // end Game_Main
void Game::Step()
{
static mat4 mrot; // general rotation matrix
static float x_ang = 0, // these track the rotation
y_ang = 2, // of the object
z_ang = 0;
Graphics& graphics = Modules::GetGraphics();
int index; // looping var
// start the timing clock
Modules::GetTimer().Start_Clock();
// clear the drawing surface
graphics.FillSurface(graphics.GetBackSurface(), 0);
// read keyboard and other devices here
Modules::GetInput().ReadKeyboard();
// game logic here...
// initialize the renderlist
_obj.Reset();
// reset angles
x_ang = z_ang = 0;
// is user trying to rotate
if (KEY_DOWN(VK_DOWN))
x_ang = 1;
else
if (KEY_DOWN(VK_UP))
x_ang = -1;
mrot = mat4::RotateX(x_ang) * mat4::RotateY(y_ang) * mat4::RotateZ(z_ang);
// rotate the local coords of single polygon in renderlist
_obj.Transform(mrot, TRANSFORM_LOCAL_ONLY, 1);
// perform local/model to world transform
_obj.ModelToWorld();
// generate camera matrix
_cam->BuildMatrixEuler(CAM_ROT_SEQ_ZYX);
// remove backfaces
_obj.RemoveBackfaces(*_cam);
// apply world to camera transform
_obj.WorldToCamera(*_cam);
// apply camera to perspective transformation
_obj.CameraToPerspective(*_cam);
// apply screen transform
_obj.PerspectiveToScreen(*_cam);
// draw instructions
graphics.DrawTextGDI("Press ESC to exit. Use UP ARROW and DOWN ARROW to rotate.", 0, 0, RGB(0,255,0), graphics.GetBackSurface());
// lock the back buffer
graphics.LockBackSurface();
// render the polygon list
_obj.DrawWire32(graphics.GetBackBuffer(), graphics.GetBackLinePitch());
// unlock the back buffer
graphics.UnlockBackSurface();
// flip the surfaces
graphics.Flip(main_window_handle);
// sync to 30ish fps
Modules::GetTimer().Wait_Clock(30);
// check of user is trying to exit
if (KEY_DOWN(VK_ESCAPE) ||
Modules::GetInput().KeyboardState()[DIK_ESCAPE])
{
PostMessage(main_window_handle, WM_DESTROY,0,0);
}
}
void cheat_handle_stick ( struct vehicle_info *vehicle_info, struct actor_info *actor_info, float time_diff )
{
traceLastFunc( "cheat_handle_stick()" );
struct object_base *base_stick, *base_self;
struct actor_info *actor_stick;
struct vehicle_info *vehicle_stick;
float *speed_stick, *speed_self;
float *spin_stick, *spin_self;
static int id = -1;
int i;
if ( KEY_PRESSED(set.key_stick) )
{
if ( vehicle_info != NULL )
cheat_state->vehicle.stick ^= 1;
else
cheat_state->actor.stick ^= 1;
id = actor_find( id - 1, 1, ACTOR_ALIVE | ACTOR_NOT_SAME_VEHICLE );
}
if ( KEY_PRESSED(set.key_stick_nearest) )
{
if ( vehicle_info != NULL )
cheat_state->vehicle.stick ^= 1;
else
cheat_state->actor.stick ^= 1;
id = actor_find_nearest( ACTOR_ALIVE | ACTOR_NOT_SAME_VEHICLE );
}
if ( (vehicle_info != NULL && cheat_state->vehicle.stick) || (actor_info != NULL && cheat_state->actor.stick) )
{
// remove any bad vehicle or actor stuffs
if ( isBadPtr_GTA_pVehicle(vehicle_info) )
vehicle_info = NULL;
if ( isBadPtr_GTA_pPed(actor_info) )
actor_info = NULL;
/* check if actor has disappeared.. and if it has, switch to teh nearest */
if ( id != -1 && actor_info_get(id, ACTOR_ALIVE) == NULL )
id = actor_find_nearest( ACTOR_ALIVE | ACTOR_NOT_SAME_VEHICLE );
if ( KEY_PRESSED(set.key_stick_prev) )
id = actor_find( id, -1, ACTOR_ALIVE | ACTOR_NOT_SAME_VEHICLE );
if ( KEY_PRESSED(set.key_stick_next) )
id = actor_find( id, 1, ACTOR_ALIVE | ACTOR_NOT_SAME_VEHICLE );
/* no actors to stick to */
if ( id == -1 )
{
cheat_state_text( "No players found; stick disabled." );
cheat_state->vehicle.stick = 0;
cheat_state->actor.stick = 0;
return;
}
/* get actor struct for the actor we're sticking to */
actor_stick = actor_info_get( id, ACTOR_ALIVE | ACTOR_NOT_SAME_VEHICLE );
if ( actor_stick == NULL )
return;
/* is this actor in a vehicle? */
vehicle_stick = actor_vehicle_get( actor_stick );
base_stick = vehicle_stick ? &vehicle_stick->base : &actor_stick->base;
base_self = vehicle_info ? &vehicle_info->base : &actor_info->base;
speed_stick = vehicle_stick ? vehicle_stick->speed : actor_stick->speed;
speed_self = vehicle_info ? vehicle_info->speed : actor_info->speed;
spin_stick = vehicle_stick ? vehicle_stick->spin : actor_stick->spin;
spin_self = vehicle_info ? vehicle_info->spin : actor_info->spin;
/* allow warping to work + always warp towards whatever we're sticking to...
but only when we're in a vehicle */
if ( KEY_PRESSED(set.key_warp_mod) && vehicle_info != NULL )
{
float out[4];
/* multiply the matrix of whatever we're sticking to with the user supplied vector */
matrix_vect4_mult( base_stick->matrix, set.stick_vect, out );
/* multiply the result with the negative warp-speed value, and put it in the speed vector
(negative because we want to warp towards teh target, not away from it */
vect3_mult( out, -set.warp_speed, speed_self );
}
if ( !KEY_DOWN(set.key_warp_mod) )
{
float d[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
float accel_mult = 1.0f;
float out[4];
/* handle stick movement keys */
if ( KEY_DOWN(set.key_stick_forward) )
d[1] += 1.0f;
if ( KEY_DOWN(set.key_stick_backward) )
d[1] -= 1.0f;
if ( KEY_DOWN(set.key_stick_left) )
d[0] -= 1.0f;
if ( KEY_DOWN(set.key_stick_right) )
d[0] += 1.0f;
if ( KEY_DOWN(set.key_stick_up) )
d[2] += 1.0f;
if ( KEY_DOWN(set.key_stick_down) )
d[2] -= 1.0f;
if ( KEY_DOWN(set.key_stick_in) )
d[3] -= 1.0f;
if ( KEY_DOWN(set.key_stick_out) )
d[3] += 1.0f;
if ( !near_zero(set.stick_accel_time) )
{
static uint32_t time_start;
if ( !vect4_near_zero(d) )
time_start = ( time_start == 0 ) ? time_get() : time_start;
else
time_start = 0; /* no keys pressed */
/* acceleration */
if ( time_start != 0 )
{
float t = TIME_TO_FLOAT( time_get() - time_start );
if ( t < set.stick_accel_time )
accel_mult *= t / set.stick_accel_time;
}
}
/* calculate new vector + dist */
if ( !vect3_near_zero(d) && !vect3_near_zero(set.stick_vect) )
{
for ( i = 0; i < 3; i++ )
{
d[i] = set.stick_vect[i] * set.stick_vect_dist + d[i] * time_diff * 8.0f * accel_mult;
}
set.stick_vect_dist = vect3_length( d );
vect3_normalize( d, set.stick_vect );
}
/* move towards/away from the center */
if ( !near_zero(d[3]) )
set.stick_vect_dist += d[3] * time_diff * 40.0f * accel_mult;
/* Teleport vehicle detachables */
if ( vehicle_info != NULL )
vehicle_detachables_teleport( vehicle_info, &base_self->matrix[4 * 3], &base_stick->matrix[4 * 3] );
matrix_copy( base_stick->matrix, base_self->matrix );
vect3_copy( speed_stick, speed_self );
vect3_copy( spin_stick, spin_self );
/*base_self->interior_id = base_stick->interior_id;
gta_interior_id_set(base_stick->interior_id);*/
/* multiply the matrix of the target with the user supplied vector */
matrix_vect4_mult( base_stick->matrix, set.stick_vect, out );
/* multiply the result with the user supplied vector distance */
vect3_mult( out, set.stick_vect_dist, out );
/* and add it to our position */
vect3_vect3_add( &base_self->matrix[4 * 3], out, &base_self->matrix[4 * 3] );
if ( vehicle_info != NULL )
{
/* Teleport detachables again :p */
vehicle_detachables_teleport( vehicle_info, &base_stick->matrix[4 * 3], &base_self->matrix[4 * 3] );
vehicle_prevent_below_height( vehicle_info, set.stick_min_height );
}
else if ( actor_info != NULL )
{
// new pedFlags
actor_info->pedFlags.bIsStanding = true;
actor_info->pedFlags.bWasStanding = true;
actor_info->pedFlags.bStayInSamePlace = true;
}
}
}
}
bool CKeyDown::Right()
{
return KEY_DOWN(VK_RIGHT);
}
void Game::Step()
{
Modules::GetTimer().Step();
// todo zz
int debug_polys_rendered_per_frame = 0;
int debug_polys_lit_per_frame = 0;
static mat4 mrot; // general rotation matrix
// state variables for different rendering modes and help
static bool wireframe_mode = false;
static bool backface_mode = true;
static bool lighting_mode = true;
static bool help_mode = true;
static bool zsort_mode = true;
static bool x_clip_mode = true;
static bool y_clip_mode = true;
static bool z_clip_mode = true;
static bool z_buffer_mode = true;
static bool display_mode = true;
static float turning = 0;
char work_string[256]; // temp string
Graphics& graphics = Modules::GetGraphics();
// start the timing clock
Modules::GetTimer().Start_Clock();
// clear the drawing surface
graphics.FillSurface(graphics.GetBackSurface(), 0);
// draw the sky
// DrawRectangle(0,0, WINDOW_WIDTH, WINDOW_HEIGHT*.5, graphics.GetColor(180,180,220), graphics.GetBackSurface());
graphics.GetBackSurface()->Blt(NULL, background->GetImage(), NULL, DDBLT_WAIT, NULL);
// read keyboard and other devices here
Modules::GetInput().ReadKeyboard();
// game logic here...
// reset the render list
_list->Reset();
// modes and lights
// wireframe mode
if (Modules::GetInput().KeyboardState()[DIK_W])
{
// toggle wireframe mode
wireframe_mode = !wireframe_mode;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// backface removal
if (Modules::GetInput().KeyboardState()[DIK_B])
{
// toggle backface removal
backface_mode = !backface_mode;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// lighting
if (Modules::GetInput().KeyboardState()[DIK_L])
{
// toggle lighting engine completely
lighting_mode = !lighting_mode;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
LightsMgr& lights = Modules::GetGraphics().GetLights();
// toggle ambient light
if (Modules::GetInput().KeyboardState()[DIK_A])
{
// toggle ambient light
if (lights[AMBIENT_LIGHT_INDEX].state == LIGHT_STATE_ON)
lights[AMBIENT_LIGHT_INDEX].state = LIGHT_STATE_OFF;
else
lights[AMBIENT_LIGHT_INDEX].state = LIGHT_STATE_ON;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle infinite light
if (Modules::GetInput().KeyboardState()[DIK_I])
{
// toggle ambient light
if (lights[INFINITE_LIGHT_INDEX].state == LIGHT_STATE_ON)
lights[INFINITE_LIGHT_INDEX].state = LIGHT_STATE_OFF;
else
lights[INFINITE_LIGHT_INDEX].state = LIGHT_STATE_ON;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle point light
if (Modules::GetInput().KeyboardState()[DIK_P])
{
// toggle point light
if (lights[POINT_LIGHT_INDEX].state == LIGHT_STATE_ON)
lights[POINT_LIGHT_INDEX].state = LIGHT_STATE_OFF;
else
lights[POINT_LIGHT_INDEX].state = LIGHT_STATE_ON;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle spot light
if (Modules::GetInput().KeyboardState()[DIK_S])
{
// toggle spot light
if (lights[SPOT_LIGHT2_INDEX].state == LIGHT_STATE_ON)
lights[SPOT_LIGHT2_INDEX].state = LIGHT_STATE_OFF;
else
lights[SPOT_LIGHT2_INDEX].state = LIGHT_STATE_ON;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// help menu
if (Modules::GetInput().KeyboardState()[DIK_H])
{
// toggle help menu
help_mode = !help_mode;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// z-sorting
if (Modules::GetInput().KeyboardState()[DIK_S])
{
// toggle z sorting
zsort_mode = !zsort_mode;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// z buffer
if (Modules::GetInput().KeyboardState()[DIK_Z])
{
// toggle z buffer
z_buffer_mode = !z_buffer_mode;
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// object and camera movement
// rotate around y axis or yaw
if (Modules::GetInput().KeyboardState()[DIK_RIGHT])
{
_cam->DirRef().y+=3;
// add a little turn to object
if ((turning+=2) > 25)
turning=25;
} // end if
else if (Modules::GetInput().KeyboardState()[DIK_LEFT])
{
_cam->DirRef().y-=3;
// add a little turn to object
if ((turning-=2) < -25)
turning=-25;
} // end if
else // center heading again
{
if (turning > 0)
turning-=1;
else if (turning < 0)
turning+=1;
} // end else
if (Modules::GetInput().KeyboardState()[DIK_UP])
{
// move forward
if ( (cam_speed+=1) > MAX_SPEED) cam_speed = MAX_SPEED;
} // end if
if (Modules::GetInput().KeyboardState()[DIK_DOWN])
{
// move backward
if ((cam_speed-=1) < -MAX_SPEED) cam_speed = -MAX_SPEED;
} // end if
// move to next object
if (Modules::GetInput().KeyboardState()[DIK_N])
{
if (++curr_object >= NUM_OBJECTS)
curr_object = 0;
// update pointer
obj_work = obj_array[curr_object];
Modules::GetTimer().Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// decelerate camera
if (cam_speed > (CAM_DECEL) ) cam_speed-=CAM_DECEL;
else if (cam_speed < (-CAM_DECEL) ) cam_speed+=CAM_DECEL;
else cam_speed = 0;
// move camera
_cam->PosRef().x += cam_speed*sin(DEG_TO_RAD(_cam->Dir().y));
_cam->PosRef().z += cam_speed*cos(DEG_TO_RAD(_cam->Dir().y));
static float plight_ang = 0, slight_ang = 0; // angles for light motion
// move point light source in ellipse around game world
lights[POINT_LIGHT_INDEX].pos.x = 1000*cos(DEG_TO_RAD(plight_ang));
lights[POINT_LIGHT_INDEX].pos.y = 100;
lights[POINT_LIGHT_INDEX].pos.z = 1000*sin(DEG_TO_RAD(plight_ang));
if ((plight_ang+=3) > 360)
plight_ang = 0;
// move spot light source in ellipse around game world
lights[SPOT_LIGHT2_INDEX].pos.x = 1000*cos(DEG_TO_RAD(slight_ang));
lights[SPOT_LIGHT2_INDEX].pos.y = 200;
lights[SPOT_LIGHT2_INDEX].pos.z = 1000*sin(DEG_TO_RAD(slight_ang));
if ((slight_ang-=5) < 0)
slight_ang = 360;
obj_work->SetWorldPos(_cam->Pos().x + 75*sin(DEG_TO_RAD(_cam->Dir().y)),
_cam->Pos().y - 20,
_cam->Pos().z + 75*cos(DEG_TO_RAD(_cam->Dir().y)));
// generate camera matrix
_cam->BuildMatrixEuler(CAM_ROT_SEQ_ZYX);
////////////////////////////////////////////////////////
// insert the scenery into universe
for (int index = 0; index < NUM_SCENE_OBJECTS; index++)
{
// reset the object (this only matters for backface and object removal)
obj_scene->Reset();
// set position of tower
obj_scene->SetWorldPos(scene_objects[index].x,
scene_objects[index].y,
scene_objects[index].z);
// move objects
scene_objects[index].x+=scene_objects_vel[index].x;
scene_objects[index].y+=scene_objects_vel[index].y;
scene_objects[index].z+=scene_objects_vel[index].z;
// test for out of bounds
if (scene_objects[index].x >= UNIVERSE_RADIUS || scene_objects[index].x <= -UNIVERSE_RADIUS)
{
scene_objects_vel[index].x=-scene_objects_vel[index].x;
scene_objects[index].x+=scene_objects_vel[index].x;
} // end if
if (scene_objects[index].y >= (UNIVERSE_RADIUS/2) || scene_objects[index].y <= -(UNIVERSE_RADIUS/2))
{
scene_objects_vel[index].y=-scene_objects_vel[index].y;
scene_objects[index].y+=scene_objects_vel[index].y;
} // end if
if (scene_objects[index].z >= UNIVERSE_RADIUS || scene_objects[index].z <= -UNIVERSE_RADIUS)
{
scene_objects_vel[index].z=-scene_objects_vel[index].z;
scene_objects[index].z+=scene_objects_vel[index].z;
} // end if
// attempt to cull object
if (!obj_scene->Cull(*_cam, CULL_OBJECT_XYZ_PLANES))
{
mrot = mrot.Identity();
// rotate the local coords of the object
obj_scene->Transform(mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
obj_scene->ModelToWorld(TRANSFORM_TRANS_ONLY);
// insert the object into render list
_list->Insert(*obj_scene, false);
} // end if
} // end for
//////////////////////////////////////////////////////////////////////////
// constant shaded water
// reset the object (this only matters for backface and object removal)
obj_work->Reset();
// generate rotation matrix around y axis
mrot = mat4::RotateX(-15) * mat4::RotateY(_cam->Dir().y + turning);
// rotate the local coords of the object
obj_work->Transform(mrot, TRANSFORM_LOCAL_TO_TRANS,true);
// perform world transform
obj_work->ModelToWorld(TRANSFORM_TRANS_ONLY);
// insert the object into render list
_list->Insert(*obj_work, false);
// reset number of polys rendered
debug_polys_rendered_per_frame = 0;
debug_polys_lit_per_frame = 0;
// use these to rotate objects
static float x_ang = 0, y_ang = 0, z_ang = 0;
// update rotation angles
if ((x_ang+=.2) > 360) x_ang = 0;
if ((y_ang+=.4) > 360) y_ang = 0;
if ((z_ang+=.8) > 360) z_ang = 0;
// update the alpha level
alpha_override+=alpha_inc;
if (alpha_override > 255 || alpha_override < 0)
{
alpha_inc=-alpha_inc;
alpha_override+=alpha_inc;
} // end if
// remove backfaces
if (backface_mode)
_list->RemoveBackfaces(*_cam);
// apply world to camera transform
_list->WorldToCamera(*_cam);
// clip the polygons themselves now
_list->ClipPolys(*_cam, (x_clip_mode ? CLIP_POLY_X_PLANE : 0) |
(y_clip_mode ? CLIP_POLY_Y_PLANE : 0) |
(z_clip_mode ? CLIP_POLY_Z_PLANE : 0) );
// light scene all at once
if (lighting_mode)
{
lights.Transform(_cam->CameraMat(), TRANSFORM_LOCAL_TO_TRANS);
_list->LightWorld32(*_cam);
}
// sort the polygon list (hurry up!)
if (zsort_mode)
_list->Sort(SORT_POLYLIST_AVGZ);
// apply camera to perspective transformation
_list->CameraToPerspective(*_cam);
// apply screen transform
_list->PerspectiveToScreen(*_cam);
// lock the back buffer
graphics.LockBackSurface();
// reset number of polys rendered
debug_polys_rendered_per_frame = 0;
if (wireframe_mode) {
_list->DrawWire32(graphics.GetBackBuffer(), graphics.GetBackLinePitch());
} else {
// set up rendering context
RenderContext rc;
rc.attr = RENDER_ATTR_NOBUFFER
| RENDER_ATTR_ALPHA
| RENDER_ATTR_MIPMAP
| RENDER_ATTR_BILERP
| RENDER_ATTR_TEXTURE_PERSPECTIVE_AFFINE;
rc.video_buffer = graphics.GetBackBuffer();
rc.lpitch = graphics.GetBackLinePitch();
rc.mip_dist = 3500;
rc.zbuffer = (unsigned char*)zbuffer->Buffer();
rc.zpitch = WINDOW_WIDTH*4;
rc.texture_dist = 0;
rc.alpha_override = alpha_override;
// render scene
_list->DrawContext(rc);
}
// unlock the back buffer
graphics.UnlockBackSurface();
sprintf(work_string,"Lighting [%s]: Ambient=%d, Infinite=%d, Point=%d, Spot=%d | Zsort [%s], BckFceRM [%s]",
(lighting_mode ? "ON" : "OFF"),
lights[AMBIENT_LIGHT_INDEX].state,
lights[INFINITE_LIGHT_INDEX].state,
lights[POINT_LIGHT_INDEX].state,
lights[SPOT_LIGHT2_INDEX].state,
(zsort_mode ? "ON" : "OFF"),
(backface_mode ? "ON" : "OFF"),
(z_buffer_mode ? "ON" : "OFF"));
graphics.DrawTextGDI(work_string, 0, WINDOW_HEIGHT-34, RGB(0,255,0), graphics.GetBackSurface());
// draw instructions
graphics.DrawTextGDI("Press ESC to exit. Press <H> for Help.", 0, 0, RGB(0,255,0), graphics.GetBackSurface());
// should we display help
int text_y = 16;
if (help_mode)
{
// draw help menu
graphics.DrawTextGDI("<A>..............Toggle ambient light source.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<I>..............Toggle infinite light source.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<P>..............Toggle point light source.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<S>..............Toggle spot light source.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<N>..............Next object.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<W>..............Toggle wire frame/solid mode.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<B>..............Toggle backface removal.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<S>..............Toggle Z sorting.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<Z>..............Toggle Z buffering.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<D>..............Toggle Normal 3D display / Z buffer visualization mode.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<H>..............Toggle Help.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
graphics.DrawTextGDI("<ESC>............Exit demo.", 0, text_y+=12, RGB(255,255,255), graphics.GetBackSurface());
} // end help
sprintf(work_string,"Polys Rendered: %d, Polys lit: %d", debug_polys_rendered_per_frame, debug_polys_lit_per_frame);
graphics.DrawTextGDI(work_string, 0, WINDOW_HEIGHT-34-16-16, RGB(0,255,0), graphics.GetBackSurface());
sprintf(work_string,"CAM [%5.2f, %5.2f, %5.2f]", _cam->Pos().x, _cam->Pos().y, _cam->Pos().z);
graphics.DrawTextGDI(work_string, 0, WINDOW_HEIGHT-34-16-16-16, RGB(0,255,0), graphics.GetBackSurface());
sprintf(work_string,"FPS: %d", Modules::GetTimer().FPS());
graphics.DrawTextGDI(work_string, 0, WINDOW_HEIGHT-34-16-16-16-16, RGB(0,255,0), graphics.GetBackSurface());
// flip the surfaces
graphics.Flip(main_window_handle);
// sync to 30ish fps
Modules::GetTimer().Wait_Clock(30);
// check of user is trying to exit
if (KEY_DOWN(VK_ESCAPE) || Modules::GetInput().KeyboardState()[DIK_ESCAPE])
{
PostMessage(main_window_handle, WM_DESTROY,0,0);
} // end if
}
void cheat_handle_debug ( HWND wnd )
{
static const int data_size[4] = { 1, 2, 4, 4 };
struct debug_info *debug = &cheat_state->debug;
int move = 0, hist_chng = 0;
if ( !cheat_state->debug_enabled )
return;
/* go to pointer */
if ( KEY_PRESSED(VK_NUMPAD1) )
{
setDebugPointer( *(void **)debug->cursor_data );
hist_chng = 1;
}
/* go back */
if ( KEY_PRESSED(VK_NUMPAD7) )
{
if ( debug->hist_pos > 0 )
{
debug->hist_pos--;
hist_chng = 1;
}
else if ( debug->hist_pos == 0 )
setDebugPointer( (void *)NULL );
}
/* change data type */
if ( KEY_PRESSED(VK_DIVIDE) )
debug->data_type = ( debug->data_type + 1 ) % 4;
/* inc/dec value */
if ( KEY_DOWN(VK_ADD) || KEY_DOWN(VK_SUBTRACT) )
{
const int value = KEY_DOWN( VK_ADD ) ? 1 : -1;
uint8_t data[4] = { 0, 0, 0, 0 };
if ( memcpy_safe(data, debug->ptr[debug->hist_pos] + debug->offset[debug->hist_pos], data_size[debug->data_type]) )
{
switch ( debug->data_type )
{
#pragma warning( disable : 4244 )
case 0:
( *(uint8_t *)data ) += ( uint8_t ) value;
break;
case 1:
( *(uint16_t *)data ) += ( uint16_t ) value;
break;
case 2:
( *(uint32_t *)data ) += ( uint32_t ) value;
break;
case 3:
( *(float *)data ) += (float)value / 10.0f;
break;
}
memcpy_safe( debug->ptr[debug->hist_pos] + debug->offset[debug->hist_pos], data, data_size[debug->data_type] );
}
}
/* copy info to clipboard */
if ( KEY_PRESSED(VK_MULTIPLY) )
{
if ( OpenClipboard(wnd) )
{
HGLOBAL mem = GlobalAlloc( GMEM_MOVEABLE, sizeof(debug->ptr_hist_str) );
if ( mem != NULL )
{
char *str = (char *)GlobalLock( mem );
strlcpy( str, debug->ptr_hist_str, sizeof(debug->ptr_hist_str) );
Log( "%s", str );
GlobalUnlock( str );
EmptyClipboard();
if ( !SetClipboardData(CF_TEXT, mem) )
Log( "SetClipboardData() %d", GetLastError() );
/*SetClipboardData(CF_TEXT, mem);*/
}
CloseClipboard();
}
else
{
Log( "OpenClipboard() %d", GetLastError() );
}
}
if ( KEY_PRESSED(VK_NUMPAD4) )
move -= data_size[debug->data_type];
if ( KEY_PRESSED(VK_NUMPAD6) )
move += data_size[debug->data_type];
if ( KEY_PRESSED(VK_NUMPAD8) )
move += -16;
if ( KEY_PRESSED(VK_NUMPAD2) )
move += 16;
if ( KEY_PRESSED(VK_NUMPAD9) )
move += -160;
if ( KEY_PRESSED(VK_NUMPAD3) )
move += 160;
debug->offset[debug->hist_pos] += move;
if ( move != 0 || hist_chng )
{
memset( debug->modify_time, 0, DEBUG_DATA_SIZE * sizeof(uint32_t) );
debug->data_prev_clear = 1;
}
for ( int i = 0; i < 9; i++ )
KEY_CONSUME( VK_NUMPAD1 + i );
KEY_CONSUME( VK_MULTIPLY );
KEY_CONSUME( VK_DIVIDE );
KEY_CONSUME( VK_ADD );
KEY_CONSUME( VK_SUBTRACT );
}
int Game_Main(void *parms)
{
// this is the workhorse of your game it will be called
// continuously in real-time this is like main() in C
// all the calls for you game go here!
static MATRIX4X4 mrot; // general rotation matrix
static float plight_ang = 0,
slight_ang = 0; // angles for light motion
static float alpha_override = 0,
alpha_inc = .25;
// use these to rotate objects
static float x_ang = 0, y_ang = 0, z_ang = 0;
// state variables for different rendering modes and help
static int wireframe_mode = 1;
static int backface_mode = 1;
static int lighting_mode = 1;
static int help_mode = 1;
static int zsort_mode = 1;
static int x_clip_mode = 1;
static int y_clip_mode = 1;
static int z_clip_mode = 1;
static int z_buffer_mode = 1;
static int display_mode = 1;
static float turning = 0;
static int pass_mode = 2;
char work_string[256]; // temp string
int index; // looping var
// start the timing clock
Start_Clock();
// clear the drawing surface
//DDraw_Fill_Surface(lpddsback, 0);
// draw the sky
//Draw_Rectangle(0,0, WINDOW_WIDTH, WINDOW_HEIGHT, RGB16Bit(0,0,0), lpddsback);
lpddsback->Blt(NULL, background.images[0], NULL, DDBLT_WAIT, NULL);
// draw the ground
//Draw_Rectangle(0,WINDOW_HEIGHT*.5, WINDOW_WIDTH, WINDOW_HEIGHT, RGB16Bit(190,190,230), lpddsback);
// read keyboard and other devices here
DInput_Read_Keyboard();
// game logic here...
// modes and lights
// wireframe mode
if (keyboard_state[DIK_W])
{
// toggle wireframe mode
if (++wireframe_mode > 1)
wireframe_mode=0;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// backface removal
if (keyboard_state[DIK_B])
{
// toggle backface removal
backface_mode = -backface_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// lighting
if (keyboard_state[DIK_L])
{
// toggle lighting engine completely
lighting_mode = -lighting_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle ambient light
if (keyboard_state[DIK_A])
{
// toggle ambient light
if (lights2[AMBIENT_LIGHT_INDEX].state == LIGHTV2_STATE_ON)
lights2[AMBIENT_LIGHT_INDEX].state = LIGHTV2_STATE_OFF;
else
lights2[AMBIENT_LIGHT_INDEX].state = LIGHTV2_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle infinite light
if (keyboard_state[DIK_I])
{
// toggle ambient light
if (lights2[INFINITE_LIGHT_INDEX].state == LIGHTV2_STATE_ON)
lights2[INFINITE_LIGHT_INDEX].state = LIGHTV2_STATE_OFF;
else
lights2[INFINITE_LIGHT_INDEX].state = LIGHTV2_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle point light
if (keyboard_state[DIK_P])
{
// toggle point light
if (lights2[POINT_LIGHT_INDEX].state == LIGHTV2_STATE_ON)
lights2[POINT_LIGHT_INDEX].state = LIGHTV2_STATE_OFF;
else
lights2[POINT_LIGHT_INDEX].state = LIGHTV2_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle spot light
if (keyboard_state[DIK_S])
{
// toggle spot light
if (lights2[SPOT_LIGHT2_INDEX].state == LIGHTV2_STATE_ON)
lights2[SPOT_LIGHT2_INDEX].state = LIGHTV2_STATE_OFF;
else
lights2[SPOT_LIGHT2_INDEX].state = LIGHTV2_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// help menu
if (keyboard_state[DIK_H])
{
// toggle help menu
help_mode = -help_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// reflection pass mode
if (keyboard_state[DIK_N])
{
// toggle help menu
if (++pass_mode > 2) pass_mode = 0;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// z-sorting
if (keyboard_state[DIK_S])
{
// toggle z sorting
zsort_mode = -zsort_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// forward/backward
if (keyboard_state[DIK_UP])
{
// move forward
if ( (cam_speed+=1) > MAX_SPEED) cam_speed = MAX_SPEED;
} // end if
else
if (keyboard_state[DIK_DOWN])
{
// move backward
if ((cam_speed-=1) < -MAX_SPEED) cam_speed = -MAX_SPEED;
} // end if
// rotate
if (keyboard_state[DIK_RIGHT])
{
cam.dir.y+=3;
// add a little turn to object
if ((turning+=2) > 25)
turning=25;
} // end if
if (keyboard_state[DIK_LEFT])
{
cam.dir.y-=3;
// add a little turn to object
if ((turning-=2) < -25)
turning=-25;
} // end if
else // center heading again
{
if (turning > 0)
turning-=1;
else
if (turning < 0)
turning+=1;
} // end else
// decelerate camera
if (cam_speed > (CAM_DECEL) ) cam_speed-=CAM_DECEL;
else
if (cam_speed < (-CAM_DECEL) ) cam_speed+=CAM_DECEL;
else
cam_speed = 0;
// move camera
cam.pos.x += cam_speed*Fast_Sin(cam.dir.y);
cam.pos.y = 200;
cam.pos.z += cam_speed*Fast_Cos(cam.dir.y);
// move point light source in ellipse around game world
lights2[POINT_LIGHT_INDEX].pos.x = 1000*Fast_Cos(plight_ang);
lights2[POINT_LIGHT_INDEX].pos.y = 100;
lights2[POINT_LIGHT_INDEX].pos.z = 1000*Fast_Sin(plight_ang);
if ((plight_ang+=3) > 360)
plight_ang = 0;
// move spot light source in ellipse around game world
lights2[SPOT_LIGHT2_INDEX].pos.x = 1000*Fast_Cos(slight_ang);
lights2[SPOT_LIGHT2_INDEX].pos.y = 200;
lights2[SPOT_LIGHT2_INDEX].pos.z = 1000*Fast_Sin(slight_ang);
if ((slight_ang-=5) < 0)
slight_ang = 360;
// update rotation angles
if ((x_ang+=.2) > 360) x_ang = 0;
if ((y_ang+=.4) > 360) y_ang = 0;
if ((z_ang+=.8) > 360) z_ang = 0;
// generate camera matrix
Build_CAM4DV1_Matrix_Euler(&cam, CAM_ROT_SEQ_ZYX);
// lock the back buffer
DDraw_Lock_Back_Surface();
// render the terrain first /////////////////////////////////
if (pass_mode >= 0)
{
// reset the render list
Reset_RENDERLIST4DV2(&rend_list);
// rotate the local coords of the object
MAT_IDENTITY_4X4(&mrot);
Transform_OBJECT4DV2(&obj_terrain, &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(&obj_terrain, TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_terrain,0);
// remove backfaces
if (backface_mode==1)
Remove_Backfaces_RENDERLIST4DV2(&rend_list, &cam);
// apply world to camera transform
World_To_Camera_RENDERLIST4DV2(&rend_list, &cam);
// clip the polygons themselves now
Clip_Polys_RENDERLIST4DV2(&rend_list, &cam, ((x_clip_mode == 1) ? CLIP_POLY_X_PLANE : 0) |
((y_clip_mode == 1) ? CLIP_POLY_Y_PLANE : 0) |
((z_clip_mode == 1) ? CLIP_POLY_Z_PLANE : 0) );
// light scene all at once
if (lighting_mode==1)
{
Transform_LIGHTSV2(lights2, 4, &cam.mcam, TRANSFORM_LOCAL_TO_TRANS);
Light_RENDERLIST4DV2_World2_16(&rend_list, &cam, lights2, 4);
} // end if
// sort the polygon list (hurry up!)
if (zsort_mode == 1)
Sort_RENDERLIST4DV2(&rend_list, SORT_POLYLIST_AVGZ);
// // get an identity matrix
// MAT_IDENTITY_4X4(&mrot);
// mrot.M11 = -1;
// transform the rendering list by x-z plane reflection matrix
Transform_RENDERLIST4DV2(&rend_list, &mrot, TRANSFORM_TRANS_ONLY);
// apply camera to perspective transformation
Camera_To_Perspective_RENDERLIST4DV2(&rend_list, &cam);
// apply screen transform
Perspective_To_Screen_RENDERLIST4DV2(&rend_list, &cam);
// reset number of polys rendered
debug_polys_rendered_per_frame = 0;
// render the renderinglist
if (wireframe_mode == 0)
Draw_RENDERLIST4DV2_Wire16(&rend_list, back_buffer, back_lpitch);
else
if (wireframe_mode == 1)
{
// initialize zbuffer to 16000 fixed point
Clear_Zbuffer(&zbuffer, (16000 << FIXP16_SHIFT));
// set up rendering context
rc.attr = RENDER_ATTR_ZBUFFER
| RENDER_ATTR_ALPHA
//| RENDER_ATTR_MIPMAP
//| RENDER_ATTR_BILERP
| RENDER_ATTR_TEXTURE_PERSPECTIVE_AFFINE;
rc.video_buffer = back_buffer;
rc.lpitch = back_lpitch;
rc.mip_dist = 3500;
rc.zbuffer = (UCHAR *)zbuffer.zbuffer;
rc.zpitch = WINDOW_WIDTH*4;
rc.rend_list = &rend_list;
rc.texture_dist = 0;
rc.alpha_override = -1;
// render scene
Draw_RENDERLIST4DV2_RENDERCONTEXTV1_16(&rc);
} // end if
} // end if
//////////////////////////////////////////////////////////
if (pass_mode >= 1)
{
// render the reflection of the objects
// reset the render list
Reset_RENDERLIST4DV2(&rend_list);
// insert the scenery into universe
for (index = 0; index < NUM_SCENE_OBJECTS; index++)
{
// select proper object first
obj_work = &obj_array[(int)scene_objects[index].w];
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(obj_work);
// set position of tower
obj_work->world_pos.x = scene_objects[index].x;
obj_work->world_pos.y = scene_objects[index].y;
obj_work->world_pos.z = scene_objects[index].z;
// move objects
scene_objects[index].x+=scene_objects_vel[index].x;
scene_objects[index].y+=scene_objects_vel[index].y;
scene_objects[index].z+=scene_objects_vel[index].z;
// test for out of bounds
if (scene_objects[index].x >= UNIVERSE_RADIUS || scene_objects[index].x <= -UNIVERSE_RADIUS)
{
scene_objects_vel[index].x=-scene_objects_vel[index].x;
scene_objects[index].x+=scene_objects_vel[index].x;
} // end if
if (scene_objects[index].y >= (UNIVERSE_RADIUS/2) || scene_objects[index].y <= -(UNIVERSE_RADIUS/2))
{
scene_objects_vel[index].y=-scene_objects_vel[index].y;
scene_objects[index].y+=scene_objects_vel[index].y;
} // end if
if (scene_objects[index].z >= UNIVERSE_RADIUS || scene_objects[index].z <= -UNIVERSE_RADIUS)
{
scene_objects_vel[index].z=-scene_objects_vel[index].z;
scene_objects[index].z+=scene_objects_vel[index].z;
} // end if
// attempt to cull object
if (!Cull_OBJECT4DV2(obj_work, &cam, CULL_OBJECT_XYZ_PLANES))
{
MAT_IDENTITY_4X4(&mrot);
// rotate the local coords of the object
Transform_OBJECT4DV2(obj_work, &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(obj_work, TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, obj_work,0);
} // end if
} // end for
// apply world to camera transform
World_To_Camera_RENDERLIST4DV2(&rend_list, &cam);
// clip the polygons themselves now
Clip_Polys_RENDERLIST4DV2(&rend_list, &cam, ((x_clip_mode == 1) ? CLIP_POLY_X_PLANE : 0) |
((y_clip_mode == 1) ? CLIP_POLY_Y_PLANE : 0) |
((z_clip_mode == 1) ? CLIP_POLY_Z_PLANE : 0) );
// light scene all at once
if (lighting_mode==1)
{
Transform_LIGHTSV2(lights2, 4, &cam.mcam, TRANSFORM_LOCAL_TO_TRANS);
Light_RENDERLIST4DV2_World2_16(&rend_list, &cam, lights2, 4);
} // end if
// sort the polygon list (hurry up!)
if (zsort_mode == 1)
Sort_RENDERLIST4DV2(&rend_list, SORT_POLYLIST_AVGZ);
// get an identity matrix
MAT_IDENTITY_4X4(&mrot);
mrot.M11 = -1; mrot.M31 = -450;
// transform the rendering list by x-z plane reflection matrix
Transform_RENDERLIST4DV2(&rend_list, &mrot, TRANSFORM_TRANS_ONLY);
// apply camera to perspective transformation
Camera_To_Perspective_RENDERLIST4DV2(&rend_list, &cam);
// apply screen transform
Perspective_To_Screen_RENDERLIST4DV2(&rend_list, &cam);
// reset number of polys rendered
debug_polys_rendered_per_frame = 0;
// render the renderinglist
if (wireframe_mode == 0)
Draw_RENDERLIST4DV2_Wire16(&rend_list, back_buffer, back_lpitch);
else
if (wireframe_mode == 1)
{
// set up rendering context
rc.attr = RENDER_ATTR_NOBUFFER
| RENDER_ATTR_ALPHA
//| RENDER_ATTR_MIPMAP
//| RENDER_ATTR_BILERP
| RENDER_ATTR_TEXTURE_PERSPECTIVE_AFFINE;
rc.video_buffer = back_buffer;
rc.lpitch = back_lpitch;
rc.mip_dist = 3500;
rc.zbuffer = (UCHAR *)zbuffer.zbuffer;
rc.zpitch = WINDOW_WIDTH*4;
rc.rend_list = &rend_list;
rc.texture_dist = 0;
rc.alpha_override = 1;
// render scene
Draw_RENDERLIST4DV2_RENDERCONTEXTV1_16(&rc);
} // end if
} // end if
//////////////////////////////////////////////////////////
if (pass_mode >= 2)
{
// render the objects now
// reset the render list
Reset_RENDERLIST4DV2(&rend_list);
// insert the scenery into universe
for (index = 0; index < NUM_SCENE_OBJECTS; index++)
{
// select proper object first
obj_work = &obj_array[(int)scene_objects[index].w];
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(obj_work);
// set position of tower
obj_work->world_pos.x = scene_objects[index].x;
obj_work->world_pos.y = scene_objects[index].y;
obj_work->world_pos.z = scene_objects[index].z;
// move objects
scene_objects[index].x+=scene_objects_vel[index].x;
scene_objects[index].y+=scene_objects_vel[index].y;
scene_objects[index].z+=scene_objects_vel[index].z;
// test for out of bounds
if (scene_objects[index].x >= UNIVERSE_RADIUS || scene_objects[index].x <= -UNIVERSE_RADIUS)
{
scene_objects_vel[index].x=-scene_objects_vel[index].x;
scene_objects[index].x+=scene_objects_vel[index].x;
} // end if
if (scene_objects[index].y >= (UNIVERSE_RADIUS/2) || scene_objects[index].y <= -(UNIVERSE_RADIUS/2))
{
scene_objects_vel[index].y=-scene_objects_vel[index].y;
scene_objects[index].y+=scene_objects_vel[index].y;
} // end if
if (scene_objects[index].z >= UNIVERSE_RADIUS || scene_objects[index].z <= -UNIVERSE_RADIUS)
{
scene_objects_vel[index].z=-scene_objects_vel[index].z;
scene_objects[index].z+=scene_objects_vel[index].z;
} // end if
// attempt to cull object
if (!Cull_OBJECT4DV2(obj_work, &cam, CULL_OBJECT_XYZ_PLANES))
{
MAT_IDENTITY_4X4(&mrot);
// rotate the local coords of the object
Transform_OBJECT4DV2(obj_work, &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(obj_work, TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, obj_work,0);
} // end if
} // end for
// remove backfaces
if (backface_mode==1)
Remove_Backfaces_RENDERLIST4DV2(&rend_list, &cam);
// apply world to camera transform
World_To_Camera_RENDERLIST4DV2(&rend_list, &cam);
// clip the polygons themselves now
Clip_Polys_RENDERLIST4DV2(&rend_list, &cam, ((x_clip_mode == 1) ? CLIP_POLY_X_PLANE : 0) |
((y_clip_mode == 1) ? CLIP_POLY_Y_PLANE : 0) |
((z_clip_mode == 1) ? CLIP_POLY_Z_PLANE : 0) );
// light scene all at once
if (lighting_mode==1)
{
Transform_LIGHTSV2(lights2, 4, &cam.mcam, TRANSFORM_LOCAL_TO_TRANS);
Light_RENDERLIST4DV2_World2_16(&rend_list, &cam, lights2, 4);
} // end if
// sort the polygon list (hurry up!)
if (zsort_mode == 1)
Sort_RENDERLIST4DV2(&rend_list, SORT_POLYLIST_AVGZ);
// get an identity matrix
//MAT_IDENTITY_4X4(&mrot);
//mrot.M11 = -1; mrot.M31 = -400;
// transform the rendering list by x-z plane reflection matrix
Transform_RENDERLIST4DV2(&rend_list, &mrot, TRANSFORM_TRANS_ONLY);
// apply camera to perspective transformation
Camera_To_Perspective_RENDERLIST4DV2(&rend_list, &cam);
// apply screen transform
Perspective_To_Screen_RENDERLIST4DV2(&rend_list, &cam);
// reset number of polys rendered
debug_polys_rendered_per_frame = 0;
// render the renderinglist
if (wireframe_mode == 0)
Draw_RENDERLIST4DV2_Wire16(&rend_list, back_buffer, back_lpitch);
else
if (wireframe_mode == 1)
{
// set up rendering context
rc.attr = RENDER_ATTR_ZBUFFER
| RENDER_ATTR_ALPHA
//| RENDER_ATTR_MIPMAP
//| RENDER_ATTR_BILERP
| RENDER_ATTR_TEXTURE_PERSPECTIVE_AFFINE;
rc.video_buffer = back_buffer;
rc.lpitch = back_lpitch;
rc.mip_dist = 3500;
rc.zbuffer = (UCHAR *)zbuffer.zbuffer;
rc.zpitch = WINDOW_WIDTH*4;
rc.rend_list = &rend_list;
rc.texture_dist = 0;
rc.alpha_override = -1;
// render scene
Draw_RENDERLIST4DV2_RENDERCONTEXTV1_16(&rc);
} // end if
} // end if
// unlock the back buffer
DDraw_Unlock_Back_Surface();
sprintf(work_string,"Lighting [%s]: Ambient=%d, Infinite=%d, Point=%d, Spot=%d, BckFceRM [%s], Zsort [%s]",
((lighting_mode == 1) ? "ON" : "OFF"),
lights[AMBIENT_LIGHT_INDEX].state,
lights[INFINITE_LIGHT_INDEX].state,
lights[POINT_LIGHT_INDEX].state,
lights[SPOT_LIGHT2_INDEX].state,
((backface_mode == 1) ? "ON" : "OFF"),
((zsort_mode == 1) ? "ON" : "OFF"));
Draw_Text_GDI(work_string, 0, WINDOW_HEIGHT-34-16, RGB(0,255,0), lpddsback);
// draw instructions
Draw_Text_GDI("Press ESC to exit. Press <H> for Help.", 0, 0, RGB(0,255,0), lpddsback);
// should we display help
int text_y = 16;
if (help_mode==1)
{
// draw help menu
Draw_Text_GDI("<A>..............Toggle ambient light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<I>..............Toggle infinite light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<P>..............Toggle point light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<S>..............Toggle spot light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<N>..............Enable next rendering pass.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<W>..............Toggle wire frame/solid mode.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<B>..............Toggle backface removal.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<S>..............Toggle Z sorting.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<H>..............Toggle Help.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<ESC>............Exit demo.", 0, text_y+=12, RGB(255,255,255), lpddsback);
} // end help
sprintf(work_string,"Polys Rendered: %d, Polys lit: %d", debug_polys_rendered_per_frame, debug_polys_lit_per_frame);
Draw_Text_GDI(work_string, 0, WINDOW_HEIGHT-34-16-16, RGB(0,255,0), lpddsback);
sprintf(work_string,"CAM [%5.2f, %5.2f, %5.2f]", cam.pos.x, cam.pos.y, cam.pos.z);
Draw_Text_GDI(work_string, 0, WINDOW_HEIGHT-34-16-16-16, RGB(0,255,0), lpddsback);
// flip the surfaces
DDraw_Flip2();
// sync to 30ish fps
Wait_Clock(30);
// check of user is trying to exit
if (KEY_DOWN(VK_ESCAPE) || keyboard_state[DIK_ESCAPE])
{
PostMessage(main_window_handle, WM_DESTROY,0,0);
} // end if
// return success
return(1);
} // end Game_Main
int Game_Main(void *parms)
{
// this is the workhorse of your game it will be called
// continuously in real-time this is like main() in C
// all the calls for you game go here!
static MATRIX4X4 mrot; // general rotation matrix
static float plight_ang = 0,
slight_ang = 0; // angles for light motion
// use these to rotate objects
static float x_ang = 0, y_ang = 0, z_ang = 0;
// state variables for different rendering modes and help
static int wireframe_mode = 1;
static int backface_mode = 1;
static int lighting_mode = 1;
static int help_mode = 1;
static int zsort_mode = 1;
static int x_clip_mode = 1;
static int y_clip_mode = 1;
static int z_clip_mode = 1;
char work_string[256]; // temp string
int index; // looping var
// start the timing clock
Start_Clock();
// clear the drawing surface
DDraw_Fill_Surface(lpddsback, 0);
// draw the sky
Draw_Rectangle(0,0, WINDOW_WIDTH, WINDOW_HEIGHT, RGB16Bit(255,120,255), lpddsback);
// draw the ground
//Draw_Rectangle(0,WINDOW_HEIGHT*.38, WINDOW_WIDTH, WINDOW_HEIGHT, RGB16Bit(25,50,110), lpddsback);
// read keyboard and other devices here
DInput_Read_Keyboard();
// game logic here...
// reset the render list
Reset_RENDERLIST4DV2(&rend_list);
// modes and lights
// wireframe mode
if (keyboard_state[DIK_W])
{
// toggle wireframe mode
if (++wireframe_mode > 1)
wireframe_mode=0;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// backface removal
if (keyboard_state[DIK_B])
{
// toggle backface removal
backface_mode = -backface_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// lighting
if (keyboard_state[DIK_L])
{
// toggle lighting engine completely
lighting_mode = -lighting_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle ambient light
if (keyboard_state[DIK_A])
{
// toggle ambient light
if (lights2[AMBIENT_LIGHT_INDEX].state == LIGHTV2_STATE_ON)
lights2[AMBIENT_LIGHT_INDEX].state = LIGHTV2_STATE_OFF;
else
lights2[AMBIENT_LIGHT_INDEX].state = LIGHTV2_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle infinite light
if (keyboard_state[DIK_I])
{
// toggle ambient light
if (lights2[INFINITE_LIGHT_INDEX].state == LIGHTV2_STATE_ON)
lights2[INFINITE_LIGHT_INDEX].state = LIGHTV2_STATE_OFF;
else
lights2[INFINITE_LIGHT_INDEX].state = LIGHTV2_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle point light
if (keyboard_state[DIK_P])
{
// toggle point light
if (lights2[POINT_LIGHT_INDEX].state == LIGHTV2_STATE_ON)
lights2[POINT_LIGHT_INDEX].state = LIGHTV2_STATE_OFF;
else
lights2[POINT_LIGHT_INDEX].state = LIGHTV2_STATE_ON;
// toggle point light
if (lights2[POINT_LIGHT2_INDEX].state == LIGHTV2_STATE_ON)
lights2[POINT_LIGHT2_INDEX].state = LIGHTV2_STATE_OFF;
else
lights2[POINT_LIGHT2_INDEX].state = LIGHTV2_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// help menu
if (keyboard_state[DIK_H])
{
// toggle help menu
help_mode = -help_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// z-sorting
if (keyboard_state[DIK_Z])
{
// toggle z sorting
zsort_mode = -zsort_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// move to next object
if (keyboard_state[DIK_O])
{
VECTOR4D old_pos;
old_pos = obj_work->world_pos;
if (++curr_object >= NUM_OBJECTS)
curr_object = 0;
// update pointer
obj_work = &obj_array[curr_object];
obj_work->world_pos = old_pos;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// forward/backward
if (keyboard_state[DIK_UP])
{
// move forward
if ( (cam_speed+=1) > MAX_SPEED) cam_speed = MAX_SPEED;
} // end if
else
if (keyboard_state[DIK_DOWN])
{
// move backward
if ((cam_speed-=1) < -MAX_SPEED) cam_speed = -MAX_SPEED;
} // end if
// rotate around y axis or yaw
if (keyboard_state[DIK_RIGHT])
{
cam.dir.y+=5;
} // end if
if (keyboard_state[DIK_LEFT])
{
cam.dir.y-=5;
} // end if
// motion section /////////////////////////////////////////////////////////
// terrain following, simply find the current cell we are over and then
// index into the vertex list and find the 4 vertices that make up the
// quad cell we are hovering over and then average the values, and based
// on the current height and the height of the terrain push the player upward
// the terrain generates and stores some results to help with terrain following
//ivar1 = columns;
//ivar2 = rows;
//fvar1 = col_vstep;
//fvar2 = row_vstep;
int cell_x = (cam.pos.x + TERRAIN_WIDTH/2) / obj_terrain.fvar1;
int cell_y = (cam.pos.z + TERRAIN_HEIGHT/2) / obj_terrain.fvar1;
static float terrain_height, delta;
// test if we are on terrain
if ( (cell_x >=0) && (cell_x < obj_terrain.ivar1) && (cell_y >=0) && (cell_y < obj_terrain.ivar2) )
{
// compute vertex indices into vertex list of the current quad
int v0 = cell_x + cell_y*obj_terrain.ivar2;
int v1 = v0 + 1;
int v2 = v1 + obj_terrain.ivar2;
int v3 = v0 + obj_terrain.ivar2;
// now simply index into table
terrain_height = 0.25 * (obj_terrain.vlist_trans[v0].y + obj_terrain.vlist_trans[v1].y +
obj_terrain.vlist_trans[v2].y + obj_terrain.vlist_trans[v3].y);
// compute height difference
delta = terrain_height - (cam.pos.y - gclearance);
// test for penetration
if (delta > 0)
{
// apply force immediately to camera (this will give it a springy feel)
vel_y+=(delta * (VELOCITY_SCALER));
// test for pentration, if so move up immediately so we don't penetrate geometry
cam.pos.y+=(delta*CAM_HEIGHT_SCALER);
// now this is more of a hack than the physics model :) let move the front
// up and down a bit based on the forward velocity and the gradient of the
// hill
cam.dir.x -= (delta*PITCH_CHANGE_RATE);
} // end if
} // end if
// decelerate camera
if (cam_speed > (CAM_DECEL) ) cam_speed-=CAM_DECEL;
else
if (cam_speed < (-CAM_DECEL) ) cam_speed+=CAM_DECEL;
else
cam_speed = 0;
// force camera to seek a stable orientation
if (cam.dir.x > (neutral_pitch+PITCH_RETURN_RATE)) cam.dir.x -= (PITCH_RETURN_RATE);
else
if (cam.dir.x < (neutral_pitch-PITCH_RETURN_RATE)) cam.dir.x += (PITCH_RETURN_RATE);
else
cam.dir.x = neutral_pitch;
// apply gravity
vel_y+=gravity;
// test for absolute sea level and push upward..
if (cam.pos.y < sea_level)
{
vel_y = 0;
cam.pos.y = sea_level;
} // end if
// move camera
cam.pos.x += cam_speed*Fast_Sin(cam.dir.y);
cam.pos.z += cam_speed*Fast_Cos(cam.dir.y);
cam.pos.y += vel_y;
// move point light source in ellipse around game world
lights2[POINT_LIGHT_INDEX].pos.x = 1000*Fast_Cos(plight_ang);
lights2[POINT_LIGHT_INDEX].pos.y = 200;
lights2[POINT_LIGHT_INDEX].pos.z = 1000*Fast_Sin(plight_ang);
// move point light source in ellipse around game world
lights2[POINT_LIGHT2_INDEX].pos.x = 500*Fast_Cos(-2*plight_ang);
lights2[POINT_LIGHT2_INDEX].pos.y = 400;
lights2[POINT_LIGHT2_INDEX].pos.z = 1000*Fast_Sin(-2*plight_ang);
if ((plight_ang+=3) > 360)
plight_ang = 0;
// generate camera matrix
Build_CAM4DV1_Matrix_Euler(&cam, CAM_ROT_SEQ_ZYX);
//////////////////////////////////////////////////////////////////////////
// the terrain
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&obj_terrain);
// generate rotation matrix around y axis
//Build_XYZ_Rotation_MATRIX4X4(x_ang, y_ang, z_ang, &mrot);
MAT_IDENTITY_4X4(&mrot);
// rotate the local coords of the object
Transform_OBJECT4DV2(&obj_terrain, &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(&obj_terrain, TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_terrain,0);
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
// render the shaded object that projects the shadow
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(obj_work);
// update rotation angle of object
obj_work->ivar1+=3.0;
if (obj_work->ivar1 >= 360)
obj_work->ivar1 = 0;
// set position of object
obj_work->world_pos.x = 200*Fast_Cos(obj_work->ivar1);
obj_work->world_pos.y = 200+50*Fast_Sin(3*obj_work->ivar1);
obj_work->world_pos.z = 200*Fast_Sin(obj_work->ivar1);
// generate rotation matrix around y axis
Build_XYZ_Rotation_MATRIX4X4(x_ang, y_ang, z_ang, &mrot);
// rotate the local coords of the object
Transform_OBJECT4DV2(obj_work, &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(obj_work, TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, obj_work,0);
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
// draw all the light objects to represent the position of light sources
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&obj_light_array[INDEX_GREEN_LIGHT_INDEX]);
// set position of object to light
obj_light_array[INDEX_GREEN_LIGHT_INDEX].world_pos = lights2[POINT_LIGHT_INDEX].pos;
// create identity matrix
MAT_IDENTITY_4X4(&mrot);
// rotate the local coords of the object
Transform_OBJECT4DV2(&obj_light_array[INDEX_GREEN_LIGHT_INDEX], &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(&obj_light_array[INDEX_GREEN_LIGHT_INDEX], TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_light_array[INDEX_GREEN_LIGHT_INDEX],0);
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&obj_light_array[INDEX_WHITE_LIGHT_INDEX]);
// set position of object to light
obj_light_array[INDEX_WHITE_LIGHT_INDEX].world_pos = lights2[POINT_LIGHT2_INDEX].pos;
// create identity matrix
MAT_IDENTITY_4X4(&mrot);
// rotate the local coords of the object
Transform_OBJECT4DV2(&obj_light_array[INDEX_WHITE_LIGHT_INDEX], &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(&obj_light_array[INDEX_WHITE_LIGHT_INDEX], TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_light_array[INDEX_WHITE_LIGHT_INDEX],0);
////////////////////////////////////////////////////////////////////////////////////
// reset number of polys rendered
debug_polys_rendered_per_frame = 0;
debug_polys_lit_per_frame = 0;
// prepare to make first pass at rendering target, so we can alpha blend in the shadows
// on the next pass
// remove backfaces
if (backface_mode==1)
Remove_Backfaces_RENDERLIST4DV2(&rend_list, &cam);
// apply world to camera transform
World_To_Camera_RENDERLIST4DV2(&rend_list, &cam);
// clip the polygons themselves now
Clip_Polys_RENDERLIST4DV2(&rend_list, &cam, CLIP_POLY_X_PLANE | CLIP_POLY_Y_PLANE | CLIP_POLY_Z_PLANE );
// light scene all at once
if (lighting_mode==1)
{
Transform_LIGHTSV2(lights2, 4, &cam.mcam, TRANSFORM_LOCAL_TO_TRANS);
Light_RENDERLIST4DV2_World2_16(&rend_list, &cam, lights2, 4);
} // end if
// sort the polygon list (hurry up!)
if (zsort_mode == 1)
Sort_RENDERLIST4DV2(&rend_list, SORT_POLYLIST_AVGZ);
// apply camera to perspective transformation
Camera_To_Perspective_RENDERLIST4DV2(&rend_list, &cam);
// apply screen transform
Perspective_To_Screen_RENDERLIST4DV2(&rend_list, &cam);
// lock the back buffer
DDraw_Lock_Back_Surface();
// reset number of polys rendered
debug_polys_rendered_per_frame = 0;
// render the object
if (wireframe_mode == 0)
Draw_RENDERLIST4DV2_Wire16(&rend_list, back_buffer, back_lpitch);
else
if (wireframe_mode == 1)
{
// perspective mode affine texturing
// set up rendering context
rc.attr = RENDER_ATTR_ZBUFFER
// | RENDER_ATTR_ALPHA
// | RENDER_ATTR_MIPMAP
// | RENDER_ATTR_BILERP
| RENDER_ATTR_TEXTURE_PERSPECTIVE_AFFINE;
// initialize zbuffer to 0 fixed point
Clear_Zbuffer(&zbuffer, (16000 << FIXP16_SHIFT));
// set up remainder of rendering context
rc.video_buffer = back_buffer;
rc.lpitch = back_lpitch;
rc.mip_dist = 0;
rc.zbuffer = (UCHAR *)zbuffer.zbuffer;
rc.zpitch = WINDOW_WIDTH*4;
rc.rend_list = &rend_list;
rc.texture_dist = 0;
rc.alpha_override = -1;
// render scene
Draw_RENDERLIST4DV2_RENDERCONTEXTV1_16_2(&rc);
} // end if
// now make second rendering pass and draw shadow(s)
// reset the render list
Reset_RENDERLIST4DV2(&rend_list);
//////////////////////////////////////////////////////////////////////////
// shadow object
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&shadow_obj);
// compute terrain cell shadow is over
cell_x = (obj_work->world_pos.x + TERRAIN_WIDTH/2) / obj_terrain.fvar1;
cell_y = (obj_work->world_pos.z + TERRAIN_HEIGHT/2) / obj_terrain.fvar1;
// compute vertex indices into vertex list of the current quad
int v0 = cell_x + cell_y*obj_terrain.ivar2;
int v1 = v0 + 1;
int v2 = v1 + obj_terrain.ivar2;
int v3 = v0 + obj_terrain.ivar2;
// now simply index into table
terrain_height = MAX( MAX(obj_terrain.vlist_trans[v0].y, obj_terrain.vlist_trans[v1].y),
MAX(obj_terrain.vlist_trans[v2].y, obj_terrain.vlist_trans[v3].y) );
// update position
shadow_obj.world_pos = obj_work->world_pos;
shadow_obj.world_pos.y = terrain_height+10;
// create identity matrix
MAT_IDENTITY_4X4(&mrot);
// transform the local coords of the object
Transform_OBJECT4DV2(&shadow_obj, &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(&shadow_obj, TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &shadow_obj,0);
//////////////////////////////////////////////////////////////////////////
// remove backfaces
if (backface_mode==1)
Remove_Backfaces_RENDERLIST4DV2(&rend_list, &cam);
// apply world to camera transform
World_To_Camera_RENDERLIST4DV2(&rend_list, &cam);
// clip the polygons themselves now
Clip_Polys_RENDERLIST4DV2(&rend_list, &cam, CLIP_POLY_X_PLANE | CLIP_POLY_Y_PLANE | CLIP_POLY_Z_PLANE );
// light scene all at once
if (lighting_mode==1)
{
Transform_LIGHTSV2(lights2, 4, &cam.mcam, TRANSFORM_LOCAL_TO_TRANS);
Light_RENDERLIST4DV2_World2_16(&rend_list, &cam, lights2, 4);
} // end if
// sort the polygon list (hurry up!)
if (zsort_mode == 1)
Sort_RENDERLIST4DV2(&rend_list, SORT_POLYLIST_AVGZ);
// apply camera to perspective transformation
Camera_To_Perspective_RENDERLIST4DV2(&rend_list, &cam);
// apply screen transform
Perspective_To_Screen_RENDERLIST4DV2(&rend_list, &cam);
// render the object
if (wireframe_mode == 0)
Draw_RENDERLIST4DV2_Wire16(&rend_list, back_buffer, back_lpitch);
else
if (wireframe_mode == 1)
{
// perspective mode affine texturing
// set up rendering context
rc.attr = RENDER_ATTR_ZBUFFER
| RENDER_ATTR_ALPHA
// | RENDER_ATTR_MIPMAP
// | RENDER_ATTR_BILERP
| RENDER_ATTR_TEXTURE_PERSPECTIVE_AFFINE;
// initialize zbuffer to 0 fixed point
//Clear_Zbuffer(&zbuffer, (16000 << FIXP16_SHIFT));
// set up remainder of rendering context
rc.video_buffer = back_buffer;
rc.lpitch = back_lpitch;
rc.mip_dist = 0;
rc.zbuffer = (UCHAR *)zbuffer.zbuffer;
rc.zpitch = WINDOW_WIDTH*4;
rc.rend_list = &rend_list;
rc.texture_dist = 0;
rc.alpha_override = -1;
// render scene
Draw_RENDERLIST4DV2_RENDERCONTEXTV1_16_3(&rc);
} // end if
// unlock the back buffer
DDraw_Unlock_Back_Surface();
// draw cockpit
//Draw_BOB16(&cockpit, lpddsback);
#if 1
sprintf(work_string,"Lighting [%s]: Ambient=%d, Infinite=%d, Point=%d, BckFceRM [%s]",
((lighting_mode == 1) ? "ON" : "OFF"),
lights2[AMBIENT_LIGHT_INDEX].state,
lights2[INFINITE_LIGHT_INDEX].state,
lights2[POINT_LIGHT_INDEX].state,
((backface_mode == 1) ? "ON" : "OFF"));
Draw_Text_GDI(work_string, 0, WINDOW_HEIGHT-34, RGB(0,255,0), lpddsback);
// draw instructions
Draw_Text_GDI("Press ESC to exit. Press <H> for Help.", 0, 0, RGB(0,255,0), lpddsback);
// should we display help
int text_y = 16;
if (help_mode==1)
{
// draw help menu
Draw_Text_GDI("<A>..............Toggle ambient light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<I>..............Toggle infinite light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<P>..............Toggle point light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<W>..............Toggle wire frame/solid mode.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<B>..............Toggle backface removal.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<O>..............Select different objects.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<H>..............Toggle Help.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<ESC>............Exit demo.", 0, text_y+=12, RGB(255,255,255), lpddsback);
} // end help
sprintf(work_string,"Polys Rendered: %d, Polys lit: %d", debug_polys_rendered_per_frame, debug_polys_lit_per_frame);
Draw_Text_GDI(work_string, 0, WINDOW_HEIGHT-34-16-16, RGB(0,255,0), lpddsback);
sprintf(work_string,"CAM [%5.2f, %5.2f, %5.2f], CELL [%d, %d]", cam.pos.x, cam.pos.y, cam.pos.z, cell_x, cell_y);
Draw_Text_GDI(work_string, 0, WINDOW_HEIGHT-34-16-16-16, RGB(0,255,0), lpddsback);
#endif
// flip the surfaces
DDraw_Flip2();
// sync to 30ish fps
Wait_Clock(30);
// check of user is trying to exit
if (KEY_DOWN(VK_ESCAPE) || keyboard_state[DIK_ESCAPE])
{
PostMessage(main_window_handle, WM_DESTROY,0,0);
} // end if
// return success
return(1);
} // end Game_Main
void GameController::Run()
{
Player* me = new Player(0,0,1);
sObjMgr->CreateWorld();
sObjMgr->Update();
DWORD realCurrTime = 0;
DWORD realPrevTime = GetMSTime();
DWORD diff;
/* Example for using the sScreenLog class */
sScreenLog->AddTrack(&diff,ScreenLog::Track::UINT,20,30,0xFFFF0000);
// sScreenLog->AddTrack(&me->X,ScreenLog::Track::INT,20,50,0xFFFF0000);
// sScreenLog->AddTrack(&me->Y,ScreenLog::Track::INT,20,70,0xFFFF0000);
while(true)
{
realCurrTime = GetMSTime();
diff = GetMSTimeDiff(realPrevTime,realCurrTime);
Player* me = sObjMgr->Me();
ReadKeyboard();
if(KEY_PRESSED(DIK_F))
me->Fire();
if(KEY_DOWN(DIK_ESCAPE))
break;
if(KEY_DOWN(DIK_W))
me->SetYVelocity(-3);
if(KEY_DOWN(DIK_S))
me->SetYVelocity(3);
if(KEY_DOWN(DIK_A)) {
me->SetXVelocity(-3);
if(KEY_DOWN(DIK_D)) {
new Explosion(me,me->GetX()+4,me->GetY()+(me->GetHeight()/2),19,0,false);
}
}
if(KEY_DOWN(DIK_D)) {
me->SetXVelocity(3);
if(KEY_DOWN(DIK_A)) {
new Explosion(me,me->GetX()+me->GetWidth()-4,me->GetY()+(me->GetHeight()/2),19,0,false);
}
}
/* Oops :< */
//if(KEY_UP(DIK_W) && KEY_UP(DIK_A) && KEY_UP(DIK_S) && KEY_UP(DIK_D))
// {
// me->SetXVelocity(0);
// me->SetYVelocity(0);
// }
if(KEY_DOWN(DIK_R))
me->SetPos(30,70);
if(KEY_DOWN(DIK_Q))
me->SetAngle(me->GetAngle()+0.1f);
if(KEY_DOWN(DIK_E))
me->SetAngle(me->GetAngle()-0.1f);
if(KEY_DOWN(DIK_M))
sWorld->PrintMap();
if(KEY_DOWN(DIK_SPACE))
{
me->SetXVelocity(0);
me->SetYVelocity(0);
}
sObjMgr->Update(/* diff */);
FollowUnit(me);
Render();
realPrevTime = realCurrTime;
}
}
// point must be in logical
void CDrawObject::MoveHandleTo(int nHandle, CPoint point)
{
FTLASSERT(this);
if(KEY_DOWN(VK_SHIFT))
{
if(dotLine == m_objType || dotLineArrow == m_objType)
{
return MoveLineHandleToWithShift(nHandle, point);
}
else
{
return MoveHandleToWithShift(nHandle, point);
}
}
CRect position = m_position;
switch (nHandle)
{
case 1:
{
position.left = point.x;
position.top = point.y;
}
break;
case 2:
position.top = point.y;
break;
case 3:
position.right = point.x;
position.top = point.y;
break;
case 4:
position.right = point.x;
break;
case 5:
{
position.right = point.x;
position.bottom = point.y;
}
break;
case 6:
position.bottom = point.y;
break;
case 7:
position.left = point.x;
position.bottom = point.y;
break;
case 8:
position.left = point.x;
break;
default:
FTLASSERT(FALSE);
break;
}
MoveTo(position);
}
bool CKeyDown::Left()
{
return KEY_DOWN(VK_LEFT);
}
int Game_Main(void *parms)
{
// this is the workhorse of your game it will be called
// continuously in real-time this is like main() in C
// all the calls for you game go here!
static MATRIX4X4 mrot; // general rotation matrix
static float plight_ang = 0,
slight_ang = 0; // angles for light motion
// use these to rotate objects
static float x_ang = 0, y_ang = 0, z_ang = 0;
// state variables for different rendering modes and help
static int wireframe_mode = 1;
static int backface_mode = 1;
static int lighting_mode = 1;
static int help_mode = 1;
static int zsort_mode = 1;
static int x_clip_mode = 1;
static int y_clip_mode = 1;
static int z_clip_mode = 1;
static int bilinear_mode = 1;
char work_string[256]; // temp string
int index; // looping var
// start the timing clock
Start_Clock();
// clear the drawing surface
//DDraw_Fill_Surface(lpddsback, 0);
// draw the sky
//Draw_Rectangle(0,0, WINDOW_WIDTH, WINDOW_HEIGHT, RGB16Bit(250,190,80), lpddsback);
lpddsback->Blt(NULL, background.images[0], NULL, DDBLT_WAIT, NULL);
// draw the ground
//Draw_Rectangle(0,WINDOW_HEIGHT*.5, WINDOW_WIDTH, WINDOW_HEIGHT, RGB16Bit(190,190,230), lpddsback);
// read keyboard and other devices here
DInput_Read_Keyboard();
// game logic here...
// reset the render list
Reset_RENDERLIST4DV2(&rend_list);
// modes and lights
// wireframe mode
if (keyboard_state[DIK_W])
{
// toggle wireframe mode
if (++wireframe_mode > 1)
wireframe_mode=0;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// lighting
if (keyboard_state[DIK_L])
{
// toggle lighting engine completely
lighting_mode = -lighting_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle ambient light
if (keyboard_state[DIK_A])
{
// toggle ambient light
if (lights2[AMBIENT_LIGHT_INDEX].state == LIGHTV2_STATE_ON)
lights2[AMBIENT_LIGHT_INDEX].state = LIGHTV2_STATE_OFF;
else
lights2[AMBIENT_LIGHT_INDEX].state = LIGHTV2_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle infinite light
if (keyboard_state[DIK_I])
{
// toggle ambient light
if (lights2[INFINITE_LIGHT_INDEX].state == LIGHTV2_STATE_ON)
lights2[INFINITE_LIGHT_INDEX].state = LIGHTV2_STATE_OFF;
else
lights2[INFINITE_LIGHT_INDEX].state = LIGHTV2_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle point light
if (keyboard_state[DIK_P])
{
// toggle point light
if (lights2[POINT_LIGHT_INDEX].state == LIGHTV2_STATE_ON)
lights2[POINT_LIGHT_INDEX].state = LIGHTV2_STATE_OFF;
else
lights2[POINT_LIGHT_INDEX].state = LIGHTV2_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle spot light
if (keyboard_state[DIK_S])
{
// toggle spot light
if (lights2[SPOT_LIGHT2_INDEX].state == LIGHTV2_STATE_ON)
lights2[SPOT_LIGHT2_INDEX].state = LIGHTV2_STATE_OFF;
else
lights2[SPOT_LIGHT2_INDEX].state = LIGHTV2_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// help menu
if (keyboard_state[DIK_H])
{
// toggle help menu
help_mode = -help_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// z-sorting
if (keyboard_state[DIK_S])
{
// toggle z sorting
zsort_mode = -zsort_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// forward/backward
if (keyboard_state[DIK_UP])
{
// move forward
if ( (cam_speed+=1) > MAX_SPEED) cam_speed = MAX_SPEED;
} // end if
else if (keyboard_state[DIK_DOWN])
{
// move backward
if ((cam_speed-=1) < -MAX_SPEED) cam_speed = -MAX_SPEED;
} // end if
// rotate around y axis or yaw
if (keyboard_state[DIK_RIGHT])
{
cam.dir.y+=5;
} // end if
if (keyboard_state[DIK_LEFT])
{
cam.dir.y-=5;
} // end if
// move to next object
if (keyboard_state[DIK_N])
{
if (++curr_object >= NUM_OBJECTS)
curr_object = 0;
// update pointer
obj_work = &obj_array[curr_object];
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle bilinear mode
if (keyboard_state[DIK_B])
{
bilinear_mode = -bilinear_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// decelerate camera
if (cam_speed > (CAM_DECEL) ) cam_speed-=CAM_DECEL;
else if (cam_speed < (-CAM_DECEL) ) cam_speed+=CAM_DECEL;
else
cam_speed = 0;
// move camera
cam.pos.x += cam_speed*Fast_Sin(cam.dir.y);
cam.pos.z += cam_speed*Fast_Cos(cam.dir.y);
// move point light source in ellipse around game world
lights2[POINT_LIGHT_INDEX].pos.x = 1000*Fast_Cos(plight_ang);
lights2[POINT_LIGHT_INDEX].pos.y = 100;
lights2[POINT_LIGHT_INDEX].pos.z = 1000*Fast_Sin(plight_ang);
if ((plight_ang+=3) > 360)
plight_ang = 0;
// move spot light source in ellipse around game world
lights2[SPOT_LIGHT2_INDEX].pos.x = 1000*Fast_Cos(slight_ang);
lights2[SPOT_LIGHT2_INDEX].pos.y = 200;
lights2[SPOT_LIGHT2_INDEX].pos.z = 1000*Fast_Sin(slight_ang);
if ((slight_ang-=5) < 0)
slight_ang = 360;
// generate camera matrix
Build_CAM4DV1_Matrix_Euler(&cam, CAM_ROT_SEQ_ZYX);
// reset BHV for culling
BHV_Reset_Tree(&bhv_tree);
// now cull the BHV ... die polygons die!
bhv_nodes_visited = 0;
BHV_FrustrumCull(&bhv_tree, // the root of the BHV
&cam, // camera to cull relative to
CULL_OBJECT_XYZ_PLANES); // clipping planes to consider
// statistic tracking
int objects_processed = 0;
////////////////////////////////////////////////////////
// insert the scenery into universe
for (index = 0; index < NUM_SCENE_OBJECTS; index++)
{
// test if container has been culled already by BHV
if (scene_objects[index].state & OBJECT4DV2_STATE_CULLED)
continue;
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(obj_work);
objects_processed++;
// set position of object
obj_work->world_pos.x = scene_objects[index].pos.x;
obj_work->world_pos.y = scene_objects[index].pos.y;
obj_work->world_pos.z = scene_objects[index].pos.z;
// rotate object
if ((scene_objects[index].rot.y+=scene_objects[index].auxi[0]) >= 360)
scene_objects[index].rot.y = 0;
// attempt to cull object
if (!Cull_OBJECT4DV2(obj_work, &cam, CULL_OBJECT_XYZ_PLANES))
{
MAT_IDENTITY_4X4(&mrot);
// generate rotation matrix around y axis
Build_XYZ_Rotation_MATRIX4X4(0, scene_objects[index].rot.y, 0, &mrot);
// rotate the local coords of the object
Transform_OBJECT4DV2(obj_work, &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(obj_work, TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list,obj_work,0);
} // end if
} // end for
// reset number of polys rendered
debug_polys_rendered_per_frame = 0;
debug_polys_lit_per_frame = 0;
// remove backfaces
if (backface_mode==1)
Remove_Backfaces_RENDERLIST4DV2(&rend_list, &cam);
// apply world to camera transform
World_To_Camera_RENDERLIST4DV2(&rend_list, &cam);
// clip the polygons themselves now
Clip_Polys_RENDERLIST4DV2(&rend_list, &cam, ((x_clip_mode == 1) ? CLIP_POLY_X_PLANE : 0) |
((y_clip_mode == 1) ? CLIP_POLY_Y_PLANE : 0) |
((z_clip_mode == 1) ? CLIP_POLY_Z_PLANE : 0) );
// light scene all at once
if (lighting_mode==1)
{
Transform_LIGHTSV2(lights2, 4, &cam.mcam, TRANSFORM_LOCAL_TO_TRANS);
Light_RENDERLIST4DV2_World2_16(&rend_list, &cam, lights2, 4);
} // end if
// sort the polygon list (hurry up!)
if (zsort_mode == 1)
Sort_RENDERLIST4DV2(&rend_list, SORT_POLYLIST_AVGZ);
// apply camera to perspective transformation
Camera_To_Perspective_RENDERLIST4DV2(&rend_list, &cam);
// apply screen transform
Perspective_To_Screen_RENDERLIST4DV2(&rend_list, &cam);
// lock the back buffer
DDraw_Lock_Back_Surface();
// reset number of polys rendered
debug_polys_rendered_per_frame = 0;
// render the renderinglist
if (wireframe_mode == 0)
Draw_RENDERLIST4DV2_Wire16(&rend_list, back_buffer, back_lpitch);
else if (wireframe_mode == 1)
{
// initialize zbuffer to 16000 fixed point
Clear_Zbuffer(&zbuffer, (000 << FIXP16_SHIFT));
// set up rendering context
rc.attr = RENDER_ATTR_INVZBUFFER
// | RENDER_ATTR_ALPHA
// | RENDER_ATTR_MIPMAP
| (bilinear_mode==1 ? RENDER_ATTR_BILERP : 0)
| RENDER_ATTR_TEXTURE_PERSPECTIVE_AFFINE;
rc.video_buffer = back_buffer;
rc.lpitch = back_lpitch;
rc.mip_dist = 3500;
rc.zbuffer = (UCHAR *)zbuffer.zbuffer;
rc.zpitch = WINDOW_WIDTH*4;
rc.rend_list = &rend_list;
rc.texture_dist = 0;
rc.alpha_override = 5;
// render scene
Draw_RENDERLIST4DV2_RENDERCONTEXTV1_16(&rc);
} // end if
// unlock the back buffer
DDraw_Unlock_Back_Surface();
sprintf(work_string,"Lighting [%s]: Ambient=%d, Infinite=%d, Point=%d, Spot=%d, Zsort [%s]",
((lighting_mode == 1) ? "ON" : "OFF"),
lights[AMBIENT_LIGHT_INDEX].state,
lights[INFINITE_LIGHT_INDEX].state,
lights[POINT_LIGHT_INDEX].state,
lights[SPOT_LIGHT2_INDEX].state,
((zsort_mode == 1) ? "ON" : "OFF"));
Draw_Text_GDI(work_string, 0, WINDOW_HEIGHT-34-16, RGB(0,255,0), lpddsback);
// draw instructions
Draw_Text_GDI("Press ESC to exit. Press <H> for Help.", 0, 0, RGB(0,255,0), lpddsback);
// should we display help
int text_y = 16;
if (help_mode==1)
{
// draw help menu
Draw_Text_GDI("<A>..............Toggle ambient light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<I>..............Toggle infinite light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<P>..............Toggle point light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<S>..............Toggle spot light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<N>..............Next object.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<W>..............Toggle wire frame/solid mode.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<S>..............Toggle Z sorting.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<H>..............Toggle Help.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<ESC>............Exit demo.", 0, text_y+=12, RGB(255,255,255), lpddsback);
} // end help
sprintf(work_string,"Polys Rendered: %d, Polys lit: %d, Object Pre-Culled by BHV: %d, Nodes visited in BHV Tree: %d",
debug_polys_rendered_per_frame,
debug_polys_lit_per_frame,
NUM_SCENE_OBJECTS - objects_processed,
bhv_nodes_visited);
Draw_Text_GDI(work_string, 0, WINDOW_HEIGHT-34-16-16, RGB(0,255,0), lpddsback);
sprintf(work_string,"CAM [%5.2f, %5.2f, %5.2f]", cam.pos.x, cam.pos.y, cam.pos.z);
Draw_Text_GDI(work_string, 0, WINDOW_HEIGHT-34-16-16-16, RGB(0,255,0), lpddsback);
// flip the surfaces
DDraw_Flip2();
// sync to 30ish fps
Wait_Clock(30);
// check of user is trying to exit
if (KEY_DOWN(VK_ESCAPE) || keyboard_state[DIK_ESCAPE])
{
PostMessage(main_window_handle, WM_DESTROY,0,0);
} // end if
// return success
return(1);
} // end Game_Main
bool CKeyDown::X()
{
return KEY_DOWN(0x58);
}
// an Update() helper that handles the input
void GameWindow::HandleInput(){
//check for escape key (to exit program)
if (KEY_DOWN(VK_ESCAPE))
PostMessage(m_Window, WM_DESTROY, 0, 0);
//start game
if(!m_bInGame){
if(KEY_DOWN(VK_SPACE) || KEY_DOWN(VK_RETURN)){
m_bInGame = true;
m_pSelect->Play();
}
}
else{
//A or LeftArrow move left
if (KEY_DOWN(VK_LEFT) || KEY_DOWN(0x41)){
m_wPlayer.m_xVelocity = -6;
}
//D or RightArrow move right
if (KEY_DOWN(VK_RIGHT) || KEY_DOWN(0x44)){
m_wPlayer.m_xVelocity = 6;
}
//W or UpArrow to jump
if(KEY_DOWN(VK_UP) || KEY_DOWN(0x57)){
if(m_wPlayer.m_bGrounded){
m_wPlayer.m_bGrounded = false;
m_wPlayer.m_yVelocity = -18;
//play sound
m_pJump->Play();
}
}
//space to cast spell
if(KEY_DOWN(VK_SPACE)){
//for making sure fire spell shoots in correct directions
int vel = 1;
//cast fire
if(m_wPlayer.m_Spell == "Fire"){
//(for making sure fire spell goes in correct direction
if(m_wPlayer.m_Image == L"images\\wiz.l.png"){
vel = -1;
}
//make a new projectile and shoot it
Projectile newProj = m_wPlayer.Shoot(vel);
if(newProj.m_bOnScreen){
for(int i = 0; i < 10; i++){
if(m_pProjectileList[i].m_bOnScreen == false){
m_pProjectileList[i] = newProj;
m_pProjectileList[i].m_bOnScreen = true;
//play sound
m_pShoot->Play();
break;
}
}
}
}
//cast dark or lightning
else if(m_wPlayer.m_Spell == "Lightning" || (m_wPlayer.m_Spell == "Dark" && m_wPlayer.m_bGrounded)){
Projectile newProj = m_wPlayer.Shoot(vel);
if(newProj.m_bOnScreen){
for(int i = 0; i < 10; i++){
if(m_pProjectileList[i].m_bOnScreen == false){
m_pProjectileList[i] = newProj;
m_pProjectileList[i].m_bOnScreen = true;
if(m_wPlayer.m_Spell == "Dark"){
//play sound
m_pShoot->Play();
}
else{
m_pKill->Play();
}
break;
}
}
}
}
}
}
}
bool CKeyDown::Z()
{
return KEY_DOWN(0x5A);
}
void S9xProcessEvents (bool8 block)
{
static char prev_keystate[128];
extern volatile char key[128];
#ifdef GRIP_SUPPORT
ReadGrip ();
#endif
#ifdef SIDEWINDER_SUPPORT
if (num_sidewinders)
ReadSidewinders ();
#endif
char key1[128];
char *keystate = (char *) key1;
int fn = 0;
memcpy (key1, (char *) key, sizeof (key1));
#undef KEY_DOWN
#define KEY_DOWN(a) (keystate[a])
#undef KEY_PRESS
#define KEY_PRESS(a) (keystate[a] && !prev_keystate[a])
#undef KEY_WASPRESSED
#define KEY_WASPRESSED(a) (prev_keystate[a] && !keystate[a])
#undef PROCESS_KEY
#define PROCESS_KEY(k, b, v)\
if (KEY_PRESS(k)) b |= v;\
if (KEY_WASPRESSED(k)) b &= ~v;
if (KEY_PRESS (SCANCODE_ESCAPE))
S9xExit ();
// Joypad 1:
PROCESS_KEY(SCANCODE_K, joypads [0], SNES_RIGHT_MASK)
PROCESS_KEY(SCANCODE_CURSORRIGHT, joypads [0], SNES_RIGHT_MASK)
PROCESS_KEY(SCANCODE_H, joypads [0], SNES_LEFT_MASK)
PROCESS_KEY(SCANCODE_CURSORLEFT, joypads [0], SNES_LEFT_MASK)
PROCESS_KEY(SCANCODE_N, joypads [0], SNES_DOWN_MASK)
PROCESS_KEY(SCANCODE_J, joypads [0], SNES_DOWN_MASK)
PROCESS_KEY(SCANCODE_CURSORDOWN, joypads [0], SNES_DOWN_MASK)
PROCESS_KEY(SCANCODE_U, joypads [0], SNES_UP_MASK)
PROCESS_KEY(SCANCODE_CURSORUP, joypads [0], SNES_UP_MASK)
PROCESS_KEY(SCANCODE_ENTER, joypads [0], SNES_START_MASK)
PROCESS_KEY(SCANCODE_SPACE, joypads [0], SNES_SELECT_MASK)
PROCESS_KEY(SCANCODE_A, joypads [0], SNES_TL_MASK)
PROCESS_KEY(SCANCODE_V, joypads [0], SNES_TL_MASK)
PROCESS_KEY(SCANCODE_Q, joypads [0], SNES_TL_MASK)
PROCESS_KEY(SCANCODE_Z, joypads [0], SNES_TR_MASK)
PROCESS_KEY(SCANCODE_B, joypads [0], SNES_TR_MASK)
PROCESS_KEY(SCANCODE_W, joypads [0], SNES_TR_MASK)
PROCESS_KEY(SCANCODE_S, joypads [0], SNES_X_MASK)
PROCESS_KEY(SCANCODE_M, joypads [0], SNES_X_MASK)
PROCESS_KEY(SCANCODE_E, joypads [0], SNES_X_MASK)
PROCESS_KEY(SCANCODE_X, joypads [0], SNES_Y_MASK)
PROCESS_KEY(SCANCODE_COMMA, joypads [0], SNES_Y_MASK)
PROCESS_KEY(SCANCODE_R, joypads [0], SNES_Y_MASK)
PROCESS_KEY(SCANCODE_D, joypads [0], SNES_A_MASK)
PROCESS_KEY(SCANCODE_PERIOD, joypads [0], SNES_A_MASK)
PROCESS_KEY(SCANCODE_T, joypads [0], SNES_A_MASK)
PROCESS_KEY(SCANCODE_C, joypads [0], SNES_B_MASK)
PROCESS_KEY(SCANCODE_SLASH, joypads [0], SNES_B_MASK)
PROCESS_KEY(SCANCODE_Y, joypads [0], SNES_B_MASK)
// Joypad 2:
// PROCESS_KEY(SCANCODE_CURSORRIGHT, joypads [1], SNES_RIGHT_MASK)
// PROCESS_KEY(SCANCODE_CURSORLEFT, joypads [1], SNES_LEFT_MASK)
// PROCESS_KEY(SCANCODE_CURSORDOWN, joypads [1], SNES_DOWN_MASK)
// PROCESS_KEY(SCANCODE_CURSORUP, joypads [1], SNES_UP_MASK)
PROCESS_KEY(SCANCODE_KEYPADENTER, joypads [0], SNES_START_MASK)
PROCESS_KEY(SCANCODE_KEYPADPLUS, joypads [0], SNES_SELECT_MASK)
PROCESS_KEY(SCANCODE_INSERT, joypads [0], SNES_X_MASK)
PROCESS_KEY(SCANCODE_REMOVE, joypads [0], SNES_Y_MASK)
PROCESS_KEY(SCANCODE_HOME, joypads [0], SNES_A_MASK)
PROCESS_KEY(SCANCODE_END, joypads [0], SNES_B_MASK)
PROCESS_KEY(SCANCODE_PAGEUP, joypads [0], SNES_TL_MASK)
PROCESS_KEY(SCANCODE_PAGEDOWN, joypads [0], SNES_TR_MASK)
if (KEY_PRESS (SCANCODE_0))
Settings.DisableHDMA = !Settings.DisableHDMA;
if (KEY_PRESS (SCANCODE_1))
PPU.BG_Forced ^= 1;
if (KEY_PRESS (SCANCODE_2))
PPU.BG_Forced ^= 2;
if (KEY_PRESS (SCANCODE_3))
PPU.BG_Forced ^= 4;
if (KEY_PRESS (SCANCODE_4))
PPU.BG_Forced ^= 8;
if (KEY_PRESS (SCANCODE_5))
PPU.BG_Forced ^= 16;
if (KEY_PRESS (SCANCODE_6))
Settings.SwapJoypads = !Settings.SwapJoypads;
if (KEY_PRESS (SCANCODE_7))
{
if (IPPU.Controller == SNES_SUPERSCOPE)
show_mouse (NULL);
S9xNextController ();
if (IPPU.Controller == SNES_SUPERSCOPE)
show_mouse (screen);
}
if (KEY_PRESS (SCANCODE_8))
Settings.BGLayering = !Settings.BGLayering;
if (KEY_PRESS (SCANCODE_9))
if (Settings.SixteenBit)
Settings.Transparency = !Settings.Transparency;
if (KEY_PRESS(SCANCODE_TAB))
superscope_turbo = !superscope_turbo;
PROCESS_KEY(SCANCODE_GRAVE, superscope_pause, 1);
if (KEY_PRESS(SCANCODE_F1))
fn = 1;
if (KEY_PRESS(SCANCODE_F2))
fn = 2;
if (KEY_PRESS(SCANCODE_F3))
fn = 3;
if (KEY_PRESS(SCANCODE_F4))
fn = 4;
if (KEY_PRESS(SCANCODE_F5))
fn = 5;
if (KEY_PRESS(SCANCODE_F6))
fn = 6;
if (KEY_PRESS(SCANCODE_F7))
fn = 7;
if (KEY_PRESS(SCANCODE_F8))
fn = 8;
if (KEY_PRESS(SCANCODE_F9))
fn = 9;
if (KEY_PRESS(SCANCODE_F10))
fn = 10;
if (KEY_PRESS(SCANCODE_F11))
fn = 11;
if (KEY_PRESS(SCANCODE_F12))
fn = 12;
if (fn > 0)
{
if (!KEY_DOWN(SCANCODE_LEFTALT) && !KEY_DOWN(SCANCODE_LEFTSHIFT))
{
if (fn == 11)
{
S9xLoadSnapshot (S9xChooseFilename (TRUE));
}
else if (fn == 12)
{
Snapshot (S9xChooseFilename (FALSE));
}
else
{
char def [PATH_MAX];
char filename [PATH_MAX];
char drive [_MAX_DRIVE];
char dir [_MAX_DIR];
char ext [_MAX_EXT];
_splitpath (Memory.ROMFilename, drive, dir, def, ext);
sprintf (filename, "%s%s%s.%03d",
S9xGetSnapshotDirectory (), SLASH_STR, def,
fn - 1);
S9xLoadSnapshot (filename);
}
}
else if (KEY_DOWN(SCANCODE_LEFTALT))
{
if (fn >= 4)
S9xToggleSoundChannel (fn - 4);
#ifdef DEBUGGER
else if (fn == 1)
CPU.Flags |= DEBUG_MODE_FLAG;
#endif
else if (fn == 2)
S9xLoadSnapshot (S9xChooseFilename (TRUE));
else if (fn == 3)
Snapshot (S9xChooseFilename (FALSE));
}
else
{
char def [PATH_MAX];
char filename [PATH_MAX];
char drive [_MAX_DRIVE];
char dir [_MAX_DIR];
char ext [_MAX_EXT];
_splitpath (Memory.ROMFilename, drive, dir, def, ext);
sprintf (filename, "%s%s%s.%03d",
S9xGetSnapshotDirectory (), SLASH_STR, def,
fn - 1);
Snapshot (filename);
}
}
if (KEY_PRESS (SCANCODE_BREAK) || KEY_PRESS (SCANCODE_BREAK_ALTERNATIVE) ||
KEY_PRESS (SCANCODE_SCROLLLOCK))
Settings.Paused ^= 1;
if (KEY_PRESS (SCANCODE_PRINTSCREEN))
SaveScreenshot ();
if (KEY_PRESS (SCANCODE_MINUS))
{
if (Settings.SkipFrames <= 1)
Settings.SkipFrames = AUTO_FRAMERATE;
else
if (Settings.SkipFrames != AUTO_FRAMERATE)
Settings.SkipFrames--;
}
if (KEY_PRESS (SCANCODE_EQUAL))
{
if (Settings.SkipFrames == AUTO_FRAMERATE)
Settings.SkipFrames = 1;
else
if (Settings.SkipFrames < 10)
Settings.SkipFrames++;
}
memcpy (prev_keystate, keystate, sizeof (prev_keystate));
if (block)
__dpmi_yield ();
}
bool CKeyDown::Space()
{
return KEY_DOWN(VK_SPACE);
}
int Game_Main(void *parms)
{
// this is the workhorse of your game it will be called
// continuously in real-time this is like main() in C
// all the calls for you game go here!
static MATRIX4X4 mrot; // general rotation matrix
// these are used to create a circling camera
static float view_angle = 0;
static float camera_distance = 6000;
static VECTOR4D pos = {0,0,0,0};
static float tank_speed;
static float turning = 0;
// state variables for different rendering modes and help
static int wireframe_mode = 1;
static int backface_mode = 1;
static int lighting_mode = 1;
static int help_mode = 1;
static int zsort_mode = 1;
char work_string[256]; // temp string
int index; // looping var
// start the timing clock
Start_Clock();
// clear the drawing surface
DDraw_Fill_Surface(lpddsback, 0);
// draw the sky
//Draw_Rectangle(0,0, WINDOW_WIDTH, WINDOW_HEIGHT/2, RGB16Bit(0,35,50), lpddsback);
// draw the ground
//Draw_Rectangle(0,WINDOW_HEIGHT/2-1, WINDOW_WIDTH, WINDOW_HEIGHT, RGB16Bit(20,12,0), lpddsback);
// read keyboard and other devices here
DInput_Read_Keyboard();
// game logic here...
// reset the render list
Reset_RENDERLIST4DV2(&rend_list);
// modes and lights
// wireframe mode
if (keyboard_state[DIK_W])
{
// toggle wireframe mode
if (++wireframe_mode > 1)
wireframe_mode=0;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// backface removal
if (keyboard_state[DIK_B])
{
// toggle backface removal
backface_mode = -backface_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// lighting
if (keyboard_state[DIK_L])
{
// toggle lighting engine completely
lighting_mode = -lighting_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle ambient light
if (keyboard_state[DIK_A])
{
// toggle ambient light
if (lights[AMBIENT_LIGHT_INDEX].state == LIGHTV1_STATE_ON)
lights[AMBIENT_LIGHT_INDEX].state = LIGHTV1_STATE_OFF;
else
lights[AMBIENT_LIGHT_INDEX].state = LIGHTV1_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle infinite light
if (keyboard_state[DIK_I])
{
// toggle ambient light
if (lights[INFINITE_LIGHT_INDEX].state == LIGHTV1_STATE_ON)
lights[INFINITE_LIGHT_INDEX].state = LIGHTV1_STATE_OFF;
else
lights[INFINITE_LIGHT_INDEX].state = LIGHTV1_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle point light
if (keyboard_state[DIK_P])
{
// toggle point light
if (lights[POINT_LIGHT_INDEX].state == LIGHTV1_STATE_ON)
lights[POINT_LIGHT_INDEX].state = LIGHTV1_STATE_OFF;
else
lights[POINT_LIGHT_INDEX].state = LIGHTV1_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// toggle spot light
if (keyboard_state[DIK_S])
{
// toggle spot light
if (lights[SPOT_LIGHT2_INDEX].state == LIGHTV1_STATE_ON)
lights[SPOT_LIGHT2_INDEX].state = LIGHTV1_STATE_OFF;
else
lights[SPOT_LIGHT2_INDEX].state = LIGHTV1_STATE_ON;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// help menu
if (keyboard_state[DIK_H])
{
// toggle help menu
help_mode = -help_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
// z-sorting
if (keyboard_state[DIK_Z])
{
// toggle z sorting
zsort_mode = -zsort_mode;
Wait_Clock(100); // wait, so keyboard doesn't bounce
} // end if
static float plight_ang = 0, slight_ang = 0; // angles for light motion
// move point light source in ellipse around game world
lights[POINT_LIGHT_INDEX].pos.x = 1000*Fast_Cos(plight_ang);
lights[POINT_LIGHT_INDEX].pos.y = 100;
lights[POINT_LIGHT_INDEX].pos.z = 1000*Fast_Sin(plight_ang);
if ((plight_ang+=3) > 360)
plight_ang = 0;
// move spot light source in ellipse around game world
lights[SPOT_LIGHT2_INDEX].pos.x = 1000*Fast_Cos(slight_ang);
lights[SPOT_LIGHT2_INDEX].pos.y = 200;
lights[SPOT_LIGHT2_INDEX].pos.z = 1000*Fast_Sin(slight_ang);
if ((slight_ang-=5) < 0)
slight_ang = 360;
// generate camera matrix
Build_CAM4DV1_Matrix_Euler(&cam, CAM_ROT_SEQ_ZYX);
// use these to rotate objects
static float x_ang = 0, y_ang = 0, z_ang = 0;
//////////////////////////////////////////////////////////////////////////
// constant shaded water
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&obj_constant_water);
// set position of constant shaded water
obj_constant_water.world_pos.x = -50;
obj_constant_water.world_pos.y = 0;
obj_constant_water.world_pos.z = 120;
// generate rotation matrix around y axis
Build_XYZ_Rotation_MATRIX4X4(x_ang, y_ang, z_ang, &mrot);
// rotate the local coords of the object
Transform_OBJECT4DV2(&obj_constant_water, &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(&obj_constant_water, TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_constant_water,0);
//////////////////////////////////////////////////////////////////////////
// flat shaded water
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&obj_flat_water);
// set position of constant shaded water
obj_flat_water.world_pos.x = 0;
obj_flat_water.world_pos.y = 0;
obj_flat_water.world_pos.z = 120;
// generate rotation matrix around y axis
Build_XYZ_Rotation_MATRIX4X4(x_ang, y_ang, z_ang, &mrot);
// rotate the local coords of the object
Transform_OBJECT4DV2(&obj_flat_water, &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(&obj_flat_water, TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_flat_water,0);
//////////////////////////////////////////////////////////////////////////
// gouraud shaded water
// reset the object (this only matters for backface and object removal)
Reset_OBJECT4DV2(&obj_gouraud_water);
// set position of constant shaded water
obj_gouraud_water.world_pos.x = 50;
obj_gouraud_water.world_pos.y = 0;
obj_gouraud_water.world_pos.z = 120;
// generate rotation matrix around y axis
Build_XYZ_Rotation_MATRIX4X4(x_ang, y_ang, z_ang, &mrot);
// rotate the local coords of the object
Transform_OBJECT4DV2(&obj_gouraud_water, &mrot, TRANSFORM_LOCAL_TO_TRANS,1);
// perform world transform
Model_To_World_OBJECT4DV2(&obj_gouraud_water, TRANSFORM_TRANS_ONLY);
// insert the object into render list
Insert_OBJECT4DV2_RENDERLIST4DV2(&rend_list, &obj_gouraud_water,0);
// update rotation angles
if ((x_ang+=1) > 360) x_ang = 0;
if ((y_ang+=2) > 360) y_ang = 0;
if ((z_ang+=3) > 360) z_ang = 0;
// remove backfaces
if (backface_mode==1)
Remove_Backfaces_RENDERLIST4DV2(&rend_list, &cam);
// light scene all at once
if (lighting_mode==1)
Light_RENDERLIST4DV2_World16(&rend_list, &cam, lights, 4);
// apply world to camera transform
World_To_Camera_RENDERLIST4DV2(&rend_list, &cam);
// sort the polygon list (hurry up!)
if (zsort_mode == 1)
Sort_RENDERLIST4DV2(&rend_list, SORT_POLYLIST_AVGZ);
// apply camera to perspective transformation
Camera_To_Perspective_RENDERLIST4DV2(&rend_list, &cam);
// apply screen transform
Perspective_To_Screen_RENDERLIST4DV2(&rend_list, &cam);
sprintf(work_string,"Lighting [%s]: Ambient=%d, Infinite=%d, Point=%d, Spot=%d | Zsort [%s], BckFceRM [%s]",
((lighting_mode == 1) ? "ON" : "OFF"),
lights[AMBIENT_LIGHT_INDEX].state,
lights[INFINITE_LIGHT_INDEX].state,
lights[POINT_LIGHT_INDEX].state,
lights[SPOT_LIGHT2_INDEX].state,
((zsort_mode == 1) ? "ON" : "OFF"),
((backface_mode == 1) ? "ON" : "OFF"));
Draw_Text_GDI(work_string, 0, WINDOW_HEIGHT-34, RGB(0,255,0), lpddsback);
// draw instructions
Draw_Text_GDI("Press ESC to exit. Press <H> for Help.", 0, 0, RGB(0,255,0), lpddsback);
// should we display help
int text_y = 16;
if (help_mode==1)
{
// draw help menu
Draw_Text_GDI("<A>..............Toggle ambient light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<I>..............Toggle infinite light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<P>..............Toggle point light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<S>..............Toggle spot light source.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<W>..............Toggle wire frame/solid mode.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<B>..............Toggle backface removal.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<H>..............Toggle Help.", 0, text_y+=12, RGB(255,255,255), lpddsback);
Draw_Text_GDI("<ESC>............Exit demo.", 0, text_y+=12, RGB(255,255,255), lpddsback);
} // end help
// lock the back buffer
DDraw_Lock_Back_Surface();
// reset number of polys rendered
debug_polys_rendered_per_frame = 0;
// render the object
if (wireframe_mode == 0)
Draw_RENDERLIST4DV2_Wire16(&rend_list, back_buffer, back_lpitch);
else
if (wireframe_mode == 1)
Draw_RENDERLIST4DV2_Solid16(&rend_list, back_buffer, back_lpitch);
// unlock the back buffer
DDraw_Unlock_Back_Surface();
// flip the surfaces
DDraw_Flip();
// sync to 30ish fps
Wait_Clock(30);
// check of user is trying to exit
if (KEY_DOWN(VK_ESCAPE) || keyboard_state[DIK_ESCAPE])
{
PostMessage(main_window_handle, WM_DESTROY,0,0);
} // end if
// return success
return(1);
} // end Game_Main
bool CKeyDown::Esc()
{
return KEY_DOWN(VK_ESCAPE);
}
//28.
// the entry point for any Windows program
//29.
int WINAPI WinMain(HINSTANCE hInstance,
//30.
HINSTANCE hPrevInstance,
//31.
LPSTR lpCmdLine,
//32.
int nCmdShow)
//33.
{
//34.
HWND hWnd;
//35.
WNDCLASSEX wc;
//36.
//37.
ZeroMemory(&wc, sizeof(WNDCLASSEX));
//38.
//39.
wc.cbSize = sizeof(WNDCLASSEX);
//40.
wc.style = CS_HREDRAW | CS_VREDRAW;
//41.
wc.lpfnWndProc = WindowProc;
//42.
wc.hInstance = hInstance;
//43.
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
//44.
// wc.hbrBackground = (HBRUSH)COLOR_WINDOW; // not needed any more
//45.
wc.lpszClassName = "WindowClass";
//46.
//47.
RegisterClassEx(&wc);
//48.
//49.
hWnd = CreateWindowEx(NULL,
//50.
"WindowClass",
//51.
"Our Direct3D Program",
//52.
WS_EX_TOPMOST | WS_POPUP, // fullscreen values
//53.
0, 0, // the starting x and y positions should be 0
//54.
SCREEN_WIDTH, SCREEN_HEIGHT, // set the window to 640 x 480
//55.
NULL,
//56.
NULL,
//57.
hInstance,
//58.
NULL);
//59.
//60.
ShowWindow(hWnd, nCmdShow);
//61.
//62.
// set up and initialize Direct3D
//63.
initD3D(hWnd);
//64.
//65.
// enter the main loop:
//66.
//67.
MSG msg;
//68.
//69.
while(TRUE)
//70.
{
//71.
while(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
//72.
{
//73.
TranslateMessage(&msg);
//74.
DispatchMessage(&msg);
//75.
}
//76.
//77.
if(msg.message == WM_QUIT)
//78.
break;
//79.
//80.
render_frame();
//81.
//82.
// check the 'escape' key
//83.
if(KEY_DOWN(VK_ESCAPE))
//84.
PostMessage(hWnd, WM_DESTROY, 0, 0);
//85.
}
//86.
//87.
// clean up DirectX and COM
//88.
cleanD3D();
//89.
//90.
return msg.wParam;
//91.
}
bool CKeyDown::Up()
{
return KEY_DOWN(VK_UP);
}
// --------------------------------------------------------------------------
// main(Number of arguments, Value of arguments)
// This is the main function.
// Return value Success:0 Error:-1
// --------------------------------------------------------------------------
int main(int argc, char **argv)
{
// AR.Drone class
ARDrone ardrone;
// Initialize
if (!ardrone.open()) {
printf("Failed to initialize.\n");
return -1;
}
// Main loop
while (!GetAsyncKeyState(VK_ESCAPE)) {
// Update your AR.Drone
if (!ardrone.update()) break;
// Get an image
IplImage *image = ardrone.getImage();
// Battery
printf("ardrone.battery = %d [��] (�c���%d��)\n", battery, 12*battery/100);
// Take off / Landing
if (KEY_PUSH(VK_SPACE)) {
if (ardrone.onGround()) ardrone.takeoff();
else ardrone.landing();
}
// Emergency stop
if (KEY_PUSH(VK_RETURN)) ardrone.emergency();
// AR.Drone is flying
if (!ardrone.onGround()) {
double x = 0.0, y = 0.0, z = 0.0, r = 0.0;
// Keyboard
if (KEY_DOWN(VK_UP)) x = 0.5;
if (KEY_DOWN(VK_DOWN)) x = -0.5;
if (KEY_DOWN(VK_LEFT)) r = 0.5;
if (KEY_DOWN(VK_RIGHT)) r = -0.5;
if (KEY_DOWN('Q')) z = 0.5;
if (KEY_DOWN('A')) z = -0.5;
// Joypad
JOYINFOEX JoyInfoEx;
JoyInfoEx.dwSize = sizeof(JOYINFOEX);
JoyInfoEx.dwFlags = JOY_RETURNALL;
// Get joypad infomations
if (joyGetPosEx(0, &JoyInfoEx) == JOYERR_NOERROR) {
int y_pad = -((int)JoyInfoEx.dwXpos - 0x7FFF) / 32512.0*100.0;
int x_pad = -((int)JoyInfoEx.dwYpos - 0x7FFF) / 32512.0*100.0;
int r_pad = -((int)JoyInfoEx.dwZpos - 0x7FFF) / 32512.0*100.0;
int z_pad = ((int)JoyInfoEx.dwRpos - 0x7FFF) / 32512.0*100.0;
printf("X = %d ", x_pad);
printf("Y = %d ", y_pad);
printf("Z = %d ", z_pad);
printf("R = %d\n", r_pad);
x = 0.5 * x_pad / 100;
y = 0.5 * y_pad / 100;
z = 0.5 * z_pad / 100;
r = 0.5 * r_pad / 100;
if (JoyInfoEx.dwButtons & JOY_BUTTON1) ardrone.takeoff();
if (JoyInfoEx.dwButtons & JOY_BUTTON2) ardrone.landing();
}
// Move
ardrone.move3D(x, y, z, r);
}
// Display the image
cvShowImage("camera", image);
cvWaitKey(1);
}
// See you
ardrone.close();
return 0;
}
bool CKeyDown::Down()
{
return KEY_DOWN(VK_DOWN);
}
void Render()
{
Matrix mat,mat1,mat2;
Bulid_XYZ_RotationMatrix(mat1,0.0,0.0,g_roty);
BuildTranslateMatrix(mat2,0.0,0.0,g_tranz);
static bool bDrawNonTextureCube=false;
if(KEY_DOWN(VK_F1))
{
//Draw the color cube. don't use texture
bDrawNonTextureCube = !bDrawNonTextureCube;
}
int icount = g_RenderManager.RenderObjectSize();
for(int i = 0; i < icount;++i)
{
CRenderObject *pobj = g_RenderManager[i];
POLYGONLIST &polygonlist = pobj->m_PolyGonList;
int polygonsize = polygonlist.size();
for( int j = 0; j < polygonsize;++j)
{
POLYGON &polygon = polygonlist[j];
if(bDrawNonTextureCube)
polygon.state &= ~OBJECT_HAS_TEXTURE;
else
polygon.state |= OBJECT_HAS_TEXTURE;
}
pobj->Transform(mat1);//transform local
pobj->world_pos *= mat2;
}
//local->world,world->camera,camera->screen
static bool bEnableLighting = false;
static bool bEableBackfaceRemove =false;
static bool bEnableInvZBuffer = false;
if(KEY_DOWN(VK_HOME))
{
//user press p
for(int i=0; i< g_lights.GetLightsCount();++i)
{
CLight* pLight = g_lights.GetLight(i);
pLight->EnableLight();
/* if(pLight->GetLightType() == CLight::kAmbientLight)
{
pLight->EnableLight();
break;
}*/
}
bEnableLighting = true;
}
else if(KEY_DOWN(VK_END))
{
bEnableLighting = false;
}
else if(KEY_DOWN(VK_F2))
{
bEableBackfaceRemove = true;
}
else if(KEY_DOWN(VK_F3))
{
bEableBackfaceRemove = false;
}
else if(KEY_DOWN(VK_F4))
{
bEnableInvZBuffer = true;
}
else if(KEY_DOWN(VK_F5))
{
bEnableInvZBuffer = false;
}
if(bEnableInvZBuffer)
ZBuffer::GetInstance()->Clear(0);
else
ZBuffer::GetInstance()->Clear((1<<30)-1);
g_RenderManager.Render(bEnableLighting,bEableBackfaceRemove,!bEnableInvZBuffer);
g_fps++;
}
int Game_Main(void *parms)
{
// this is the workhorse of your game it will be called
// continuously in real-time this is like main() in C
// all the calls for you game go here!
int index; // looping var
static int delay = 30; // initial delay per frame
// start the timing clock
DWORD start_time = Start_Clock();
// lock back buffer and copy background into it
DDraw_Lock_Back_Surface();
// draw background
Draw_Bitmap16(&background_bmp, back_buffer, back_lpitch,0);
// unlock back surface
DDraw_Unlock_Back_Surface();
// read keyboard
DInput_Read_Keyboard();
// update delay
if (keyboard_state[DIK_RIGHT])
delay+=5;
else
if (delay > 5 && keyboard_state[DIK_LEFT])
delay-=5;
// draw the ship
ship.x = ship.varsF[SHIP_X_POS]+0.5;
ship.y = ship.varsF[SHIP_Y_POS]+0.5;
ship.curr_frame = 0;
Draw_BOB(&ship, lpddsback);
// draw shadow
ship.curr_frame = 1;
ship.x-=64;
ship.y+=128;
Draw_BOB(&ship, lpddsback);
// draw the title
Draw_Text_GDI("(16-Bit Version) Time Based Kinematic Motion DEMO, Press <ESC> to Exit.",10, 10,RGB(255,255,255), lpddsback);
sprintf(buffer, "Frame rate = %f, use <RIGHT>, <LEFT> arrows to change load", 1000*1/(float)delay );
Draw_Text_GDI(buffer,10, 25,RGB(255,255,255), lpddsback);
sprintf(buffer,"Ship Velocity is %f pixels/sec",1000*ship.varsF[SHIP_X_VEL]);
Draw_Text_GDI(buffer,10, 40,RGB(255,255,255), lpddsback);
// this models the load in the game
Wait_Clock(delay);
// flip the surfaces
DDraw_Flip();
// move the ship based on time //////////////////////////////////
// x = x + v*dt
// compute dt
float dt = Get_Clock() - start_time; // in milliseconds
// move based on 30 pixels per seconds or .03 pixels per millisecond
ship.varsF[SHIP_X_POS]+=(ship.varsF[SHIP_X_VEL]*dt);
// test for off screen
if (ship.varsF[SHIP_X_POS] > screen_width+ship.width)
ship.varsF[SHIP_X_POS] = -ship.width;
//////////////////////////////////////////////////////
// check of user is trying to exit
if (KEY_DOWN(VK_ESCAPE) || keyboard_state[DIK_ESCAPE])
{
PostMessage(main_window_handle, WM_DESTROY,0,0);
// stop all sounds
DSound_Stop_All_Sounds();
} // end if
// return success
return(1);
} // end Game_Main