I basically fell in love with the "Adventures in Game Development" Youtube series, so naturally I found this website and forum.
After watching the whole series in... basically one sitting I got inspired to actually create a game. The reason I found the series is I was looking for some advice on how to get started. It is pretty clear that I just need to do something, so I'm starting out by making a Tetris clone, which I will call Schmetris, because I know I am not allowed to use the word Tetris, even though it is just for myself.
Anyways my question is with SDL, well I think I got it figured out but I was hoping I could make sure my understanding is clear.
I posted my whole "heartbeat" as it is called at the bottom, I really just need to make sure I understand this little bit:
Code: Select all
{
// Clear the back buffer.
SDL_FillRect( SDL_GetVideoSurface(), NULL, 0 );
//Draw the backgroudn to the back buffer.
apply_surface( 0, 0, background, screen );
// Draw the "message" to the back buffer.
apply_surface( ( SCREEN_WIDTH - message->w ) / 2, ( SCREEN_HEIGHT - message->h ) / 2, message, screen );
//Null the surface pointer
message = NULL;
}
//Swap the current and back buffer.
if( SDL_Flip( screen ) == -1 )
{
return 1;
}
Please feel free to tell me where my understanding is totally failing =)
My entire "heartbeat":
Code: Select all
while( quit == false )
{
//If there's an event to handle
if( SDL_PollEvent( &event ) )
{
//If a key was pressed
if( event.type == SDL_KEYDOWN )
{
//Set the proper message surface
switch( event.key.keysym.sym )
{
case SDLK_UP: message = upMessage; break;
case SDLK_DOWN: message = downMessage; break;
case SDLK_LEFT: message = leftMessage; break;
case SDLK_RIGHT: message = rightMessage; break;
}
}
else if( event.type == SDL_QUIT ) //if the user clicks the little X in the upper right corner.
{
quit = true;
}
}
//If a message needs to be displayed
if( message != NULL )
{
// Clear the back buffer.
SDL_FillRect( SDL_GetVideoSurface(), NULL, 0 );
//Draw the backgroudn to the back buffer.
apply_surface( 0, 0, background, screen );
// Draw the "message" to the back buffer.
apply_surface( ( SCREEN_WIDTH - message->w ) / 2, ( SCREEN_HEIGHT - message->h ) / 2, message, screen );
//Null the surface pointer
message = NULL;
}
//Swap the current and back buffer.
if( SDL_Flip( screen ) == -1 )
{
return 1;
}
}
