Most Efficient Sprites Question

[TerryRitchie]

One thing to keep in mind if you need to flip or change the size of your sprites it will really start to slow down your program doing it with _PUTIMAGE. IF possible you should have them already at the size and rotation you need or use _PUTIMAGE to do all that work to a _NEWIMAGE when your game first starts up to avoid any possible slow down while running.

I don't understand, you're already using _PUTIMAGE to display the sprite. I can see that maybe it takes a tiny bit more CPU power to resize an image using _PUTIMAGE but flipping should take nothing more. With flipping you're just changing the start and end x,y coordinates which controls the direction of flip you desire.