Ejemplo n.º 1
0
void BlockCollection::SetAnimation(int index)
{
   m_logger.logTrace( "BlockCollection::SetAnimation(int index)" );

	for( m_collectionIter = m_collection.begin();
		 m_collectionIter != m_collection.end();
		 ++m_collectionIter )
   {

		 for( int i=0; i<MAX_SQUARES_PER_BLOCK; ++i )
       {
          for( int j=0; j<8; ++j )
          {
             if( (*m_collectionIter)->GetSquareType(i) != EMPTY &&
					(*m_collectionIter)->GetCol(i) == m_completionArray[j])
             {
                Set_Animation_BOB((*m_collectionIter)->GetBOB(i),index);
             }
          }
       }
   }		 
}
int Game_Init(void *parms)
{
// this function is where you do all the initialization 
// for your game

char filename[80]; // used to read files

// start up DirectDraw (replace the parms as you desire)
DDraw_Init(WINDOW_WIDTH, WINDOW_HEIGHT, WINDOW_BPP, WINDOWED_APP);

// initialize directinput
DInput_Init();

// acquire the keyboard 
DInput_Init_Keyboard();

// add calls to acquire other directinput devices here...


// initialize directsound and directmusic
DSound_Init();
DMusic_Init();

// hide the mouse
ShowCursor(FALSE);

// seed random number generator
srand(Start_Clock());

// all your initialization code goes here...

///////////////////////////////////////////////////////////

// load the background
Load_Bitmap_File(&bitmap8bit, "REACTOR.BMP");

// set the palette to background image palette
Set_Palette(bitmap8bit.palette);

// create and load the reactor bitmap image
Create_Bitmap(&reactor, 0,0, 640, 480);
Load_Image_Bitmap(&reactor,&bitmap8bit,0,0,BITMAP_EXTRACT_MODE_ABS);
Unload_Bitmap_File(&bitmap8bit);

// now let's load in all the frames for the skelaton!!!

// create skelaton bob
if (!Create_BOB(&skelaton,0,0,56,72,32,
           BOB_ATTR_VISIBLE | BOB_ATTR_MULTI_ANIM,DDSCAPS_SYSTEMMEMORY))
   return(0);

// load the frames in 8 directions, 4 frames each
// each set of frames has a walk and a fire, frame sets
// are loaded in counter clockwise order looking down
// from a birds eys view or the x-z plane
for (int direction = 0; direction < 8; direction++)
    { 
    // build up file name
    sprintf(filename,"SKELSP%d.BMP",direction);

    // load in new bitmap file
    Load_Bitmap_File(&bitmap8bit,filename);
 
    Load_Frame_BOB(&skelaton,&bitmap8bit,0+direction*4,0,0,BITMAP_EXTRACT_MODE_CELL);  
    Load_Frame_BOB(&skelaton,&bitmap8bit,1+direction*4,1,0,BITMAP_EXTRACT_MODE_CELL);  
    Load_Frame_BOB(&skelaton,&bitmap8bit,2+direction*4,2,0,BITMAP_EXTRACT_MODE_CELL);  
    Load_Frame_BOB(&skelaton,&bitmap8bit,3+direction*4,0,1,BITMAP_EXTRACT_MODE_CELL);  

    // unload the bitmap file
    Unload_Bitmap_File(&bitmap8bit);

    // set the animation sequences for skelaton
    Load_Animation_BOB(&skelaton,direction,4,skelaton_anims[direction]);

    } // end for direction

// set up stating state of skelaton
Set_Animation_BOB(&skelaton, 0);
Set_Anim_Speed_BOB(&skelaton, 4);
Set_Vel_BOB(&skelaton, 0,0);
Set_Pos_BOB(&skelaton, 0, 128);

// return success
return(1);

} // end Game_Init
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
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;

// 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();

// read keyboard and other devices here
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 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
Ejemplo n.º 4
0
int Game_Init(void *parms,  int num_parms)
{
// this function is where you do all the initialization 
// for your game

int index;         // looping var
char filename[80]; // used to build up files names

// initialize directdraw
DDraw_Init(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP, WINDOWED_APP);

// start up DirectInput
DInput_Init();

// initialize the keyboard
DInput_Init_Keyboard();

// load the background
Load_Bitmap_File(&bitmap8bit, "REACTOR2.BMP");

// set the palette to background image palette
Set_Palette(bitmap8bit.palette);

// create and load the reactor bitmap image
Create_Bitmap(&reactor, 0,0, 640, 480);
Load_Image_Bitmap(&reactor,&bitmap8bit,0,0,BITMAP_EXTRACT_MODE_ABS);
Unload_Bitmap_File(&bitmap8bit);

// now let's load in all the frames for the skelaton!!!

// create skelaton bob
if (!Create_BOB(&skelaton,0,0,56,72,32,
           BOB_ATTR_VISIBLE | BOB_ATTR_MULTI_ANIM,DDSCAPS_SYSTEMMEMORY))
   return(0);

// load the frames in 8 directions, 4 frames each
// each set of frames has a walk and a fire, frame sets
// are loaded in counter clockwise order looking down
// from a birds eys view or the x-z plane
for (int direction = 0; direction < 8; direction++)
    { 
    // build up file name
    sprintf(filename,"SKELSP%d.BMP",direction);

    // load in new bitmap file
    Load_Bitmap_File(&bitmap8bit,filename);
 
    Load_Frame_BOB(&skelaton,&bitmap8bit,0+direction*4,0,0,BITMAP_EXTRACT_MODE_CELL);  
    Load_Frame_BOB(&skelaton,&bitmap8bit,1+direction*4,1,0,BITMAP_EXTRACT_MODE_CELL);  
    Load_Frame_BOB(&skelaton,&bitmap8bit,2+direction*4,2,0,BITMAP_EXTRACT_MODE_CELL);  
    Load_Frame_BOB(&skelaton,&bitmap8bit,3+direction*4,0,1,BITMAP_EXTRACT_MODE_CELL);  

    // unload the bitmap file
    Unload_Bitmap_File(&bitmap8bit);

    // set the animation sequences for skelaton
    Load_Animation_BOB(&skelaton,direction,4,skelaton_anims[direction]);

    } // end for direction

// set up stating state of skelaton
Set_Animation_BOB(&skelaton, 0);
Set_Anim_Speed_BOB(&skelaton, 4);
Set_Vel_BOB(&skelaton, 0,0);
Set_Pos_BOB(&skelaton, 0, 128);

// set clipping rectangle to screen extents so mouse cursor
// doens't mess up at edges
RECT screen_rect = {0,0,screen_width,screen_height};
lpddclipper = DDraw_Attach_Clipper(lpddsback,1,&screen_rect);

// hide the mouse
ShowCursor(FALSE);

// return success
return(1);

} // end Game_Init
Ejemplo n.º 5
0
// sets the current animation
void Block::SetAnimation(int index)
{
	for( int i=0; i< MAX_SQUARES_PER_BLOCK; ++i )
		Set_Animation_BOB( &(m_squares[i].m_bob), index);
}
Ejemplo n.º 6
0
int Game_Init(void *parms,  int num_parms)
{
// this function is where you do all the initialization 
// for your game

int index;         // looping var
char filename[80]; // used to build up files names

// initialize directdraw
DDraw_Init(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP);


#if 0 // directinput7 method

// first create the direct input object
if (DirectInputCreateEx(main_instance,DIRECTINPUT_VERSION,IID_IDirectInput7, (void **)&lpdi,NULL)!=DI_OK)
   return(0);

// create a keyboard device  //////////////////////////////////
if (lpdi->CreateDeviceEx(GUID_SysKeyboard, IID_IDirectInputDevice7, (void **)&lpdikey, NULL)!=DI_OK)
   return(0);

#endif


// first create the direct input object
if (DirectInput8Create(main_instance,DIRECTINPUT_VERSION,IID_IDirectInput8, (void **)&lpdi,NULL)!=DI_OK)
   return(0);

// create a keyboard device  //////////////////////////////////
if (lpdi->CreateDevice(GUID_SysKeyboard, &lpdikey, NULL)!=DI_OK)
   return(0);


// set cooperation level
if (lpdikey->SetCooperativeLevel(main_window_handle, 
                 DISCL_NONEXCLUSIVE | DISCL_BACKGROUND)!=DI_OK)
    return(0);

// set data format
if (lpdikey->SetDataFormat(&c_dfDIKeyboard)!=DI_OK)
   return(0);

// acquire the keyboard
if (lpdikey->Acquire()!=DI_OK)
   return(0);

///////////////////////////////////////////////////////////

// load the background
Load_Bitmap_File(&bitmap8bit, "REACTOR.BMP");

// set the palette to background image palette
Set_Palette(bitmap8bit.palette);

// create and load the reactor bitmap image
Create_Bitmap(&reactor, 0,0, 640, 480);
Load_Image_Bitmap(&reactor,&bitmap8bit,0,0,BITMAP_EXTRACT_MODE_ABS);
Unload_Bitmap_File(&bitmap8bit);

// now let's load in all the frames for the skelaton!!!

// create skelaton bob
if (!Create_BOB(&skelaton,0,0,56,72,32,
           BOB_ATTR_VISIBLE | BOB_ATTR_MULTI_ANIM,DDSCAPS_SYSTEMMEMORY))
   return(0);

// load the frames in 8 directions, 4 frames each
// each set of frames has a walk and a fire, frame sets
// are loaded in counter clockwise order looking down
// from a birds eys view or the x-z plane
for (int direction = 0; direction < 8; direction++)
    { 
    // build up file name
    sprintf(filename,"SKELSP%d.BMP",direction);

    // load in new bitmap file
    Load_Bitmap_File(&bitmap8bit,filename);
 
    Load_Frame_BOB(&skelaton,&bitmap8bit,0+direction*4,0,0,BITMAP_EXTRACT_MODE_CELL);  
    Load_Frame_BOB(&skelaton,&bitmap8bit,1+direction*4,1,0,BITMAP_EXTRACT_MODE_CELL);  
    Load_Frame_BOB(&skelaton,&bitmap8bit,2+direction*4,2,0,BITMAP_EXTRACT_MODE_CELL);  
    Load_Frame_BOB(&skelaton,&bitmap8bit,3+direction*4,0,1,BITMAP_EXTRACT_MODE_CELL);  

    // unload the bitmap file
    Unload_Bitmap_File(&bitmap8bit);

    // set the animation sequences for skelaton
    Load_Animation_BOB(&skelaton,direction,4,skelaton_anims[direction]);

    } // end for direction

// set up stating state of skelaton
Set_Animation_BOB(&skelaton, 0);
Set_Anim_Speed_BOB(&skelaton, 4);
Set_Vel_BOB(&skelaton, 0,0);
Set_Pos_BOB(&skelaton, 0, 128);

// set clipping rectangle to screen extents so mouse cursor
// doens't mess up at edges
RECT screen_rect = {0,0,screen_width,screen_height};
lpddclipper = DDraw_Attach_Clipper(lpddsback,1,&screen_rect);

// hide the mouse
ShowCursor(FALSE);

// return success
return(1);

} // end Game_Init
Ejemplo n.º 7
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


// 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);

// get joystick data
lpdijoy->Poll(); // this is needed for joysticks only
lpdijoy->GetDeviceState(sizeof(DIJOYSTATE2), (LPVOID)&joy_state);

// lock the back buffer
DDraw_Lock_Back_Surface();

// draw the background reactor image
Draw_Bitmap16(&playfield, back_buffer, back_lpitch, 0);

// unlock the back buffer
DDraw_Unlock_Back_Surface();

// is the player moving?
blaster.x+=joy_state.lX;
blaster.y+=joy_state.lY;

// test bounds
if (blaster.x > SCREEN_WIDTH-32)
    blaster.x = SCREEN_WIDTH-32;
else
if (blaster.x < 0)
    blaster.x = 0;

if (blaster.y > SCREEN_HEIGHT-32)
    blaster.y = SCREEN_HEIGHT-32;
else
if (blaster.y < SCREEN_HEIGHT-128)
    blaster.y = SCREEN_HEIGHT-128;

// is player firing?
if (joy_state.rgbButtons[0])
   Start_Missile();

// move and draw missle
Move_Missile();
Draw_Missile();

// is it time to blink eyes
if ((rand()%100)==50)
   Set_Animation_BOB(&blaster,0);

// draw blaster
Animate_BOB(&blaster);
Draw_BOB16(&blaster,lpddsback);

// draw some text
Draw_Text_GDI("(16-Bit Version) Let's Rock!!!",0,0,RGB(255,255,255),lpddsback);

// display joystick and buttons 0-7
sprintf(buffer,"Joystick Stats: X-Axis=%d, Y-Axis=%d, buttons(%d,%d,%d,%d,%d,%d,%d,%d)",
                                                                      joy_state.lX,joy_state.lY,
                                                                      joy_state.rgbButtons[0],
                                                                      joy_state.rgbButtons[1],
                                                                      joy_state.rgbButtons[2],
                                                                      joy_state.rgbButtons[3],
                                                                      joy_state.rgbButtons[4],
                                                                      joy_state.rgbButtons[5],
                                                                      joy_state.rgbButtons[6],
                                                                      joy_state.rgbButtons[7]);

Draw_Text_GDI(buffer,0,SCREEN_HEIGHT-20,RGB(255,255,50),lpddsback);

// print out name of joystick
sprintf(buffer, "Joystick Name & Vendor: %s",joyname);
Draw_Text_GDI(buffer,0,SCREEN_HEIGHT-40,RGB(255,255,50),lpddsback);


// flip the surfaces
DDraw_Flip();

// sync to 30 fps
Wait_Clock(30);

// return success
return(1);

} // end Game_Main
Ejemplo n.º 8
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

// 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_Bitmap16(&reactor, back_buffer, back_lpitch, 0);

// unlock the back buffer
DDraw_Unlock_Back_Surface();

// get player input

// get the keyboard data
lpdikey->GetDeviceState(256, (LPVOID)keyboard_state);

// 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_COLOR the color of the walls
// try to center the scan on the feet of the player
// note since we are uin 16-bit mode, we need to scan the 16 bit value then compare
// it against the 16-bit color code for the green pixel which has values RB(41,231,41)
// but depending if this is a 5.5.5 or 5.6.5 the 16-bit value will be different, however
// during ddraw_init RGB16Bit() was vectored (function pointer) to either 5.5.5 or 5.6.5 
// depending on the actual surface mode, so it should all work out :)
   if (Color_Scan16(skelaton.x+16, skelaton.y+16,
                    skelaton.x+skelaton.width-16, skelaton.y+skelaton.height-16,                                    
                    RGB16Bit(WALL_COLOR_R, WALL_COLOR_G, WALL_COLOR_B),
                    RGB16Bit(WALL_COLOR_R, WALL_COLOR_G, WALL_COLOR_B), 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_BOB16(&skelaton, lpddsback);

// draw some text
Draw_Text_GDI("I STILL HAVE A BONE TO PICK!",0,screen_height - 32,RGB(32,32,32),lpddsback);
Draw_Text_GDI("(16-Bit Version) 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