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
void update_drawing(cairo_t *cr)
{
// if(Explosion_Flag)
// {
// // This actually does nothing the first time around
// // explosion_step2 is sort of the inner, yellow circle, one step behind step1
// for(int i = 0; i < Explosion_Step+1; i++)
// {
// explosion_step2(cr, ExpX, ExpY, i);
// }
// explosion_step1(cr, ExpX, ExpY, Explosion_Step);
//
// if((Explosion_Step * 10) >= ExpRadius)
// {
// Terminal_State = Terminal_State_Flag;
// Explosion_Step = 0;
// Explosion_Flag = 0;
// set_initial_vals();
// }
// }
// else if(Jitter_Flag)
// {
//
// if(jitter_switch)
// {
// jitter_step1(cr, Jitter_Step);
// }
// else
// {
// jitter_step2(cr, Jitter_Step);
// }
//
// if(Jitter_Step < 1)
// {
// Jitter_Step = 8;
// Jitter_Flag = 0;
// }
// }
Draw_Ship(cr, Ship_X_Pos,Ship_Y_Pos,Ship_Headings,SHIP_SIZE_FACTOR*MaxX);
cairo_stroke(cr);
Draw_Ship_Nose(cr, Ship_X_Pos,Ship_Y_Pos,Ship_Headings,SHIP_SIZE_FACTOR*MaxX);
cairo_stroke(cr);
Draw_Fort(cr, MaxX/2,MaxY/2,Fort_Headings,FORT_SIZE_FACTOR*MaxX);
cairo_stroke(cr);
for(int i=0;i<MAX_NO_OF_MISSILES;i++)
{
if (Missile_Flag[i]==ALIVE)
{
Draw_Missile(cr, Missile_X_Pos[i], Missile_Y_Pos[i], Missile_Headings[i], MISSILE_SIZE_FACTOR*MaxX, i);
cairo_stroke(cr);
}
}
if (Mine_Flag==ALIVE)
{
Draw_Mine(cr, Mine_X_Pos,Mine_Y_Pos,MINE_SIZE_FACTOR*MaxX);
cairo_stroke(cr);
}
if(Shell_Flag==ALIVE)
{
Draw_Shell(cr, Shell_X_Pos,Shell_Y_Pos,Shell_Headings,SHELL_SIZE_FACTOR*MaxX);
cairo_stroke(cr);
}
// Update_Points(cr);
// Update_Velocity(cr);
// Update_Speed(cr);
// Update_Vulner(cr);
// Update_Interval(cr);
// Update_Shots(cr);
// Update_Control(cr);
// if(Mine_Flag==ALIVE)
// {
//
// Draw_Mine_Type(cr);
//// Mine_Type_Should_Update = 0;
// }
// if(Bonus_Char_Should_Update) // Set to always update (i.e. change nothing)
// {
// Draw_Bonus_Char(cr);
// cairo_reset_clip(cr);
// }
}