int main( int argc, char **argv )
{
if ( SDL_Init( SDL_INIT_EVERYTHING ) < 0 )
throw runtime_error(SDL_GetError());
SDL_Window *window = SDL_CreateWindow( "particles example",
SDL_WINDOWPOS_CENTERED,
SDL_WINDOWPOS_CENTERED,
WINDOW_WIDTH,
WINDOW_HEIGHT,
SDL_WINDOW_SHOWN
);
if ( window == NULL )
throw runtime_error(SDL_GetError());
SDL_Renderer *renderer = SDL_CreateRenderer( window, -1, SDL_RENDERER_SOFTWARE);
if ( renderer == NULL )
throw runtime_error(SDL_GetError());
const int MAX_NUMBER_OF_PARTICLES = 500;
CVector2f pos(320,240);
CSimpleParticleSystem system(renderer, MAX_NUMBER_OF_PARTICLES, pos);
CTimer t;
t.Reset();
bool bRunning = true;
while ( bRunning )
{
t.Update();
SDL_Event ev;
while ( SDL_PollEvent( & ev )) // Check event queue.
{
switch( ev.type )
{
case SDL_QUIT: // when window is closed
bRunning = false;
break;
case SDL_KEYDOWN:
switch( ev.key.keysym.sym )
{
case SDLK_SPACE:
system.Initialize(10);
break;
default:
break;
}
break;
}
}
SDL_SetRenderDrawColor(renderer,0,0,0,0);
SDL_RenderClear(renderer);
// Make sure that time has passed between updates
if( t.GetPassedTimeMS() >= 5)
{
system.Update( t.GetPassedTime() );
t.Reset();
}
system.Render( renderer );
SDL_RenderPresent(renderer);
}
SDL_Quit();
return 0;
}
