A neat little engine I figured out. This engine determines, to the pixel, exactly how high you will jump. The formula for the maximum height of a basic velocity jump is as follows: H=((JP/(G*2))*(JP+G)) Where: H=Maximum Height JP= Jump Power G= Gravity force downwards (positive value, not negative) Try messing around with jump power and gravity! No two combinations are the same (if you account for speed and time it takes to land and such). This can be more useful than it appears, because if you are making a platformer game, and want to know where to put a platform that is accessible or inaccessible, you'll know using this! There are probably several other uses for this I won't take the time to describe. Remember, ANYONE can use this! Oh, and before I forget, if you have an idea for some sort of engine, simple or crazy, tell me and I'll give it my best shot!