game loop

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Original post by Anonymous Poster both are fine really, as you say, so long as you get a good frame rate. It usually depends on how many sprites you have running around on screen and/or how big they are. There's an overhead in tracking the position, and blitting small background boxes, especially if you are also doing a grab behind cycle as well (only if you have no copy of the screen I would I have thought), so you have to erase them in the right order before drawing and so on. You don't have to do any of that when your just blitting down the whole screen and drawing fresh sprites over it..usually to a back buffer. Its up to you, if its just a few sprites and your machine is reasonable spec, erase the area around the sprites and redraw, repeat until done...otherewise blit the whole screen, redraw sprites and display...effect is the same.