isometric

[Crash]

yo im trying to make an isometric game, but i cant figure out how to make it so that y velocity = half of the x velocity, any ideas?
edit - its a 360 game

[twobob]

Would yvelocity = xvelocity/2; work, or is it something more complex than this that you are trying to do in your 360 game.

[Crash]

yea its a bit more complicated than that, ive rendered an isometric tank in 3dsmax 120 frames, however on the normal grid it tends to glide around sort of cuz y = x when i want it to be y = x / 2