void ClassDemoApp::UpdateAndRender() {
float ticks = (float)SDL_GetTicks() / 1000.0f;
float elapsed = ticks - lastElapsedTime;
lastElapsedTime = ticks;
if (musicTicks < 96)
musicTicks += elapsed;
Mix_VolumeMusic((int)musicTicks);
while (SDL_PollEvent(&event)) {
if (event.type == SDL_QUIT || event.type == SDL_WINDOWEVENT_CLOSE) {
done = true;
}
else if (event.type == SDL_KEYDOWN) {
if (event.key.keysym.scancode == SDL_SCANCODE_RETURN) {
if (state != STATE_GAME_LEVEL) {
state = STATE_GAME_LEVEL;
invaders->Restart();
invaders->score = 0;
}
}
}
}
switch (state) {
case STATE_MAIN_MENU:
MainMenuRender();
break;
case STATE_GAME_LEVEL:
GameLevelUpdate(elapsed);
GameLevelRender();
break;
case STATE_GAME_OVER:
GameOverRender();
break;
}
}
void GameLoop()
{
MainMenuRender();
}
