/////////////////////////////////////////////////////////////////////////////////
// Main loop
/////////////////////////////////////////////////////////////////////////////////
int main(void) {
bool done=FALSE; // Bool Variable To Exit Loop
short i, j;
//char stemp[256];
int debounce = 0;
//int width;
//int height;
int running, frames, x, y;
double t, t0, fps;
char titlestr[ 200 ];
int scr_mode;
E3D_Object *pObject;
Scene.Start();
Scene.SetRenderDistance(400.0f);
// Set up the default light (light 0)
E3D_Light *light0 = Scene.GetLight(0);
light0->SetColour( 0.8f, 0.8f, 0.6f );
light0->SetAmbient( 0.4f, 0.4f, 0.4f );
light0->SetDirection( 0.707f, 0.707f, 0.0f );
// Set up the default camera (camera 0)
E3D_Camera *camera = Scene.GetCamera(0);
camera->SetPosition(0.0f, 0.0f, 0.0f);
camera->SetDirection(0.0f, 0.0f, 1.0f);
camera->SetUpVector(0.0f, 1.0f, 0.0f);
camera->SetFOV(60.0f);
Scene.AddModel("sights", "sights.obj");
Scene.AddModel("glider", "glider.obj");
Scene.AddModel("frag", "frag.obj");
Scene.AddModel("laser_yellow", "laser_yellow.obj");
Scene.AddModel("laser_green", "laser_green.obj");
// add sights
pObject = Scene.AddObject(PLAYER_LIST, "sights");
pObject->SetPosition(0.0f, 0.0f, 10.0f);
// add some bullets
for(i=0; i<8; i++) {
pObject = Scene.AddObject(BULLET_LIST, "laser_yellow");
pObject->SetPosition(50.0f, 0.0f, 0.0f); // offscreen
}
// add some fragments (objects 10 to 50)
for(i=0; i<30; i++) {
pObject = Scene.AddObject(FRAG_LIST, "frag");
pObject->SetPosition(50.0f, 0.0f, 0.0f); // offscreen
}
// manufacture some gliders
for(i=0; i<160; i++) {
pObject = Scene.AddObject(ENEMY_LIST, "glider");
pObject->SetPosition((float)(rand() % 100 - 50), (float)(rand() % 80 - 40), 50.0f + (float)(rand() % 300));
pObject->behaviour = 1;
}
// Set up SDL video buffer
printf("Initializing SDL.\n");
// Information about the current video settings.
const SDL_VideoInfo* info = NULL;
// Color depth in bits of our window.
int bpp = 0;
// Flags we will pass into SDL_SetVideoMode.
int flags = 0;
// Initialize defaults, Video and Audio
if((SDL_Init(SDL_INIT_VIDEO|SDL_INIT_AUDIO)==-1)) {
printf("Could not initialize SDL: %s.\n", SDL_GetError());
exit(-1);
}
printf("SDL initialized.\n");
// Let's get some video information.
info = SDL_GetVideoInfo( );
if( !info ) {
// This should probably never happen.
fprintf( stderr, "Video query failed: %s\n",
SDL_GetError( ) );
exit( 1 );
}
SDL_Surface *screen;
// set quit cleanup callback
atexit(SDL_Quit);
/*
* Set our width/height to 640/480 (you would
* of course let the user decide this in a normal
* app). We get the bpp we will request from
* the display. On X11, VidMode can't change
* resolution, so this is probably being overly
* safe. Under Win32, ChangeDisplaySettings
* can change the bpp.
*/
bpp = info->vfmt->BitsPerPixel;
/*
* Now, we want to setup our requested
* window attributes for our OpenGL window.
* We want *at least* 5 bits of red, green
* and blue. We also want at least a 16-bit
* depth buffer.
*
* The last thing we do is request a double
* buffered window. '1' turns on double
* buffering, '0' turns it off.
*
* Note that we do not use SDL_DOUBLEBUF in
* the flags to SDL_SetVideoMode. That does
* not affect the GL attribute state, only
* the standard 2D blitting setup.
*/
SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 );
SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 5 );
SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 );
SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
/*
* We want to request that SDL provide us
* with an OpenGL window, in a fullscreen
* video mode.
*
* EXERCISE:
* Make starting windowed an option, and
* handle the resize events properly with
* glViewport.
*/
flags = SDL_OPENGL; // | SDL_FULLSCREEN;
/*
* Set the video mode
*/
if( SDL_SetVideoMode( VIEW_WIDTH, VIEW_HEIGHT, bpp, flags ) == 0 ) {
/*
* This could happen for a variety of reasons,
* including DISPLAY not being set, the specified
* resolution not being available, etc.
*/
fprintf( stderr, "Video mode set failed: %s\n",
SDL_GetError( ) );
exit( 1 );
}
SDL_WM_SetCaption("E3D Example 4 - Tailgunner", "");
// Set up our OpenGL env and build our display lists
printf( "InitGL() returned %d\n", InitGL() );
float dx = 0.5f;
float dy = 0.2f;
float dz = 0.0f;
// Main loop
dyrot = 0.0;
running = GL_TRUE;
frames = 0;
unsigned int ticks = SDL_GetTicks();
while( running )
{
// limit fps to 50 frames per second
while((SDL_GetTicks() - ticks) < 20) ;
ticks = SDL_GetTicks();
// Get mouse position
//SDL_PumpEvents();
Uint8 mousebutton = SDL_GetMouseState( &x, &y );
frames ++;
// animate
dz += 0.05f;
pObject = Scene.GetObject(0, 0); // sights
pObject->rotation.z = dz;
pObject->position.x = (float)((VIEW_WIDTH/2) - x) / 40.0f;
pObject->position.y = (float)((VIEW_HEIGHT/2) - y) / 40.0f;
// BEGIN BEHAVIOURS
// Behaviours 1: Enemy objects (gliders)
OBJLIST* objList = Scene.GetObjectList(ENEMY_LIST);
OBJLIST::iterator objIter;
for(objIter = objList->begin(); objIter != objList->end(); objIter++)
{
if(1 == objIter->modelNumber)
{
// this is a glider
if(1 == objIter->behaviour)
{
objIter->SetRotation(0.0f, DEG2RAD(180), 0.0f);
objIter->position.z -= 1.0f;
if(objIter->position.z < 0.0f)
objIter->position.z = 300.0f + rand() % 50;
}
}
}
// Behaviours 2: Bullets
objList = Scene.GetObjectList(BULLET_LIST);
for(objIter = objList->begin() ; objIter != objList->end(); objIter++)
{
if(3 == objIter->modelNumber)
{
if(1 == objIter->behaviour) // active
{
objIter->position += objIter->velocity;
// check if this bullet has hit any gliders
OBJLIST* gliderList = Scene.GetObjectList(ENEMY_LIST);
OBJLIST::iterator gliderIter;
for(gliderIter = gliderList->begin() ; gliderIter != gliderList->end(); gliderIter++)
{
if(1 == gliderIter->behaviour) // glider active
{
if(fabs(gliderIter->position.z - objIter->position.z) < 5.0f)
{
if(fabs(gliderIter->position.x - objIter->position.x) < 5.0f)
{
if(fabs(gliderIter->position.y - objIter->position.y) < 5.0f)
{
// hit!
Vector v(0.0f, 0.0f, -1.0f);
addFrags(gliderIter->position, v);
gliderIter->position.z = 0.0f;
gliderIter->position.x = 50.0f;
gliderIter->behaviour = 0; // switch off glider
objIter->counter = 1; // expire bullet
}
}
}
}
} // next glider
if(objIter->counter) objIter->counter--; // decrement counter
if(!objIter->counter)
{
objIter->behaviour = 0; // switch off if finished count
objIter->position.z = 0.0f;
}
}
} // end if bullet
} // next
// Behaviours 3: Fragments
objList = Scene.GetObjectList(FRAG_LIST);
for(objIter = objList->begin() ; objIter != objList->end(); objIter++)
{
if(2 == objIter->modelNumber)
{
if(1 == objIter->behaviour)
{
objIter->position += objIter->velocity;
objIter->rotation += (objIter->velocity * 0.1f);
if(objIter->counter) objIter->counter--; // decrement counter
if(!objIter->counter)
{
objIter->behaviour = 0; // switch off if finished count
objIter->position.x = 50.0f;
objIter->position.z = 0.0f;
}
}
}
}
// END BEHAVIOURS
DrawGLScene();
// Swap the double-buffer
SDL_GL_SwapBuffers( );
// Poll for the next event
SDL_Event event;
SDL_PollEvent( &event );
// Check if the ESC key was pressed or the window was closed
Uint8 *keys = SDL_GetKeyState(NULL);
if ( keys[SDLK_ESCAPE] == SDL_PRESSED )
{
running = 0;
}
// get Mouse Button
if(mousebutton & SDL_BUTTON(1))
{
if(0 == debounce)
{
// find first free bullet and launch it
OBJLIST* bulletList = Scene.GetObjectList(BULLET_LIST);
OBJLIST::iterator bulletIter;
//for(bulletIter = bulletList.begin(); bulletIter != bulletList.end(); bulletIter++)
for(bulletIter = bulletList->begin(); bulletIter != bulletList->end(); bulletIter++)
{
if(0 == bulletIter->behaviour)
{
bulletIter->behaviour = 1;
bulletIter->counter = 100;
bulletIter->SetPosition(-1.0f, -1.0f, 0.0f);
bulletIter->velocity.x = (float)((VIEW_WIDTH/2) - x) / 200.0f;
bulletIter->velocity.y = (float)((VIEW_HEIGHT/2) - y) / 200.0f;
bulletIter->velocity.z = 2.0f;
bulletIter->rotation.y = (float)((VIEW_WIDTH/2) - x) / 400.0f;
bulletIter->rotation.x = (float)((VIEW_HEIGHT/2) - y) / -400.0f;
//bulletIter = bulletList->end();
break;
}
}
debounce = 12;
}
} // end if mousebutton
if(debounce) debounce--;
} // wend
printf("Quiting SDL.\n");
// Shutdown all subsystems
SDL_Quit();
exit(0);
}
/////////////////////////////////////////////////////////////////////////////////
// Main loop
/////////////////////////////////////////////////////////////////////////////////
int main(void) {
BOOL done=FALSE; // Bool Variable To Exit Loop
short i, j;
//char stemp[256];
int debounce = 0;
//int width;
//int height;
int running, frames, x, y;
double t, t0, fps;
char titlestr[ 200 ];
int scr_mode;
E3D_Object *pObject;
scr_mode = GLFW_WINDOW;
Scene.Start();
Scene.SetRenderDistance(400.0f);
// Set up the default light (light 0)
E3D_Light *light0 = Scene.GetLight(0);
light0->SetColour( 0.8f, 0.8f, 0.6f );
light0->SetAmbient( 0.4f, 0.4f, 0.4f );
light0->SetDirection( 0.707f, 0.707f, 0.0f );
// Set up the default camera (camera 0)
E3D_Camera *camera = Scene.GetCamera(0);
camera->SetPosition(0.0f, 0.0f, 0.0f);
camera->SetDirection(0.0f, 0.0f, 1.0f);
camera->SetUpVector(0.0f, 1.0f, 0.0f);
camera->SetFOV(60.0f);
Scene.AddModel("sights", "sights.obj");
Scene.AddModel("glider", "glider.obj");
Scene.AddModel("frag", "frag.obj");
Scene.AddModel("laser_yellow", "laser_yellow.obj");
Scene.AddModel("laser_green", "laser_green.obj");
// add sights
pObject = Scene.AddObject(PLAYER_LIST, "sights");
pObject->SetPosition(0.0f, 0.0f, 10.0f);
// add some bullets
for(i=0; i<8; i++) {
pObject = Scene.AddObject(BULLET_LIST, "laser_yellow");
pObject->SetPosition(50.0f, 0.0f, 0.0f); // offscreen
}
// add some fragments (objects 10 to 50)
for(i=0; i<30; i++) {
pObject = Scene.AddObject(FRAG_LIST, "frag");
pObject->SetPosition(50.0f, 0.0f, 0.0f); // offscreen
}
// manufacture some gliders
for(i=0; i<160; i++) {
pObject = Scene.AddObject(ENEMY_LIST, "glider");
pObject->SetPosition((float)(rand() % 100 - 50), (float)(rand() % 80 - 40), 50.0f + (float)(rand() % 300));
pObject->behaviour = 1;
}
// Initialise GLFW
if(glfwInit() != GL_TRUE) return(1);
// Open OpenGL window
if( !glfwOpenWindow( VIEW_WIDTH, VIEW_HEIGHT, 0,0,0,0, 0,0, scr_mode ) )
{
glfwTerminate();
return 0;
}
glfwSetWindowTitle( "E3DOO Win32OpenGL Example1" );
glfwSetWindowSizeCallback( ResizeWindow );
//printf("Refresh rate: %d \n", glfwGetWindowParam(GLFW_REFRESH_RATE));
//printf("ext1: %d \n", glfwExtensionSupported("GL_ARB_multitexture"));
// Disable vertical sync (on cards that support it)
glfwSwapInterval( 1 );
// Set up our OpenGL env and build our display lists
printf( "InitGL() returned %d\n", InitGL() );
// Swap buffers
glfwSwapBuffers();
float dx = 0.5f;
float dy = 0.2f;
float dz = 0.0f;
// Main loop
dyrot = 0.0;
running = GL_TRUE;
frames = 0;
t0 = glfwGetTime();
double startTime = t0;
glfwDisable(GLFW_MOUSE_CURSOR);
while( running )
{
// fps limiter
while((glfwGetTime() - startTime) < 0.02) ;
startTime = glfwGetTime();
// Get time and mouse position
t = glfwGetTime();
glfwGetMousePos( &x, &y );
// Calculate and display FPS (frames per second)
if( (t-t0) > 1.0 || frames == 0 )
{
fps = (double)frames / (t-t0);
sprintf( titlestr,
"E3DOO Win32OpenGL Example1 (%.1f FPS) %d objects",
fps, Scene.GetNumObjects());
glfwSetWindowTitle( titlestr );
t0 = t;
frames = 0;
}
frames ++;
// animate
dz += 0.05f;
pObject = Scene.GetObject(0, 0); // sights
pObject->rotation.z = dz;
pObject->position.x = (float)((VIEW_WIDTH/2) - x) / 40.0f;
pObject->position.y = (float)((VIEW_HEIGHT/2) - y) / 40.0f;
// BEGIN BEHAVIOURS
// Behaviours 1: Enemy objects (gliders)
OBJLIST* objList = Scene.GetObjectList(ENEMY_LIST);
OBJLIST::iterator objIter;
for(objIter = objList->begin(); objIter != objList->end(); objIter++)
{
if(1 == objIter->modelNumber)
{
// this is a glider
if(1 == objIter->behaviour)
{
objIter->SetRotation(0.0f, DEG2RAD(180), 0.0f);
objIter->position.z -= 1.0f;
if(objIter->position.z < 0.0f)
objIter->position.z = 300.0f + rand() % 50;
}
}
}
// Behaviours 2: Bullets
objList = Scene.GetObjectList(BULLET_LIST);
for(objIter = objList->begin() ; objIter != objList->end(); objIter++)
{
if(3 == objIter->modelNumber)
{
if(1 == objIter->behaviour) // active
{
objIter->position += objIter->velocity;
// check if this bullet has hit any gliders
OBJLIST* gliderList = Scene.GetObjectList(ENEMY_LIST);
OBJLIST::iterator gliderIter;
for(gliderIter = gliderList->begin() ; gliderIter != gliderList->end(); gliderIter++)
{
if(1 == gliderIter->behaviour) // glider active
{
if(fabs(gliderIter->position.z - objIter->position.z) < 5.0f)
{
if(fabs(gliderIter->position.x - objIter->position.x) < 5.0f)
{
if(fabs(gliderIter->position.y - objIter->position.y) < 5.0f)
{
// hit!
Vector v(0.0f, 0.0f, -1.0f);
addFrags(gliderIter->position, v);
gliderIter->position.z = 0.0f;
gliderIter->position.x = 50.0f;
gliderIter->behaviour = 0; // switch off glider
objIter->counter = 1; // expire bullet
}
}
}
}
} // next glider
if(objIter->counter) objIter->counter--; // decrement counter
if(!objIter->counter)
{
objIter->behaviour = 0; // switch off if finished count
objIter->position.z = 0.0f;
}
}
} // end if bullet
} // next
// Behaviours 3: Fragments
objList = Scene.GetObjectList(FRAG_LIST);
for(objIter = objList->begin() ; objIter != objList->end(); objIter++)
{
if(2 == objIter->modelNumber)
{
if(1 == objIter->behaviour)
{
objIter->position += objIter->velocity;
objIter->rotation += (objIter->velocity * 0.1f);
if(objIter->counter) objIter->counter--; // decrement counter
if(!objIter->counter)
{
objIter->behaviour = 0; // switch off if finished count
objIter->position.x = 50.0f;
objIter->position.z = 0.0f;
}
}
}
}
// END BEHAVIOURS
DrawGLScene();
// Swap buffers
glfwSwapBuffers();
// Check if the ESC key was pressed or the window was closed
running = !glfwGetKey( GLFW_KEY_ESC ) && glfwGetWindowParam( GLFW_OPENED );
// get Mouse Button
if(glfwGetMouseButton(GLFW_MOUSE_BUTTON_LEFT) == GLFW_PRESS)
{
if(0 == debounce)
{
// find first free bullet and launch it
OBJLIST* bulletList = Scene.GetObjectList(BULLET_LIST);
OBJLIST::iterator bulletIter;
//for(bulletIter = bulletList.begin(); bulletIter != bulletList.end(); bulletIter++)
for(bulletIter = bulletList->begin(); bulletIter != bulletList->end(); bulletIter++)
{
if(0 == bulletIter->behaviour)
{
bulletIter->behaviour = 1;
bulletIter->counter = 100;
bulletIter->SetPosition(-1.0f, -1.0f, 0.0f);
bulletIter->velocity.x = (float)((VIEW_WIDTH/2) - x) / 200.0f;
bulletIter->velocity.y = (float)((VIEW_HEIGHT/2) - y) / 200.0f;
bulletIter->velocity.z = 2.0f;
bulletIter->rotation.y = (float)((VIEW_WIDTH/2) - x) / 400.0f;
bulletIter->rotation.x = (float)((VIEW_HEIGHT/2) - y) / -400.0f;
//bulletIter = bulletList->end();
break;
}
}
debounce = 12;
}
}
if(glfwGetMouseButton(GLFW_MOUSE_BUTTON_RIGHT) == GLFW_PRESS)
{
}
if(debounce) debounce--;
} // wend
// Close OpenGL window and terminate GLFW
glfwEnable(GLFW_MOUSE_CURSOR);
glfwTerminate();
return 0; // Exit The Program
}
