If they can move in a somewhat limited number of angles one could use an array with precalc.. i wouldn't have thought about using precalc for this until you brought it up.. would it be much faster? One could just make a prog to include each time that stores the cos and sin of say, every integer angle from 0-359... Unless blitz already uses a built-in table for that??
quick poll - precalc sin & cos or perform every frame ?
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