Making a platformer

So... I've been tinkering with some code to try and make a platformer. No results. Does anyone have any sample code to give me or some hints?

I have a tips: bg colisin sux In a more serious tone, if your character starts to float a few pixels into or above blocks, use 16*FLOOR(<y or x>/16) or something like this if the character has little or no velocity in that direction. It worked for me when I tried making a platformer, my character wouldn't glitch into blocks after I tried it :D

Also, use separate values for velocity and coordinates.

Check collision on all the sprite corners, not sides. That way you don't clip into blocks from certain angles.

Keep code neat! Break it into groups like 'physics, display, input' etc. Hopefully this helped? My own platformer was broken because I lost track of what did what but if you document your code you can probably do a good job.

So also document your code. Also, on an offtopic note... using the LIST formatting option doesn't actally require [.list] around it, just using [.*] works :D