The while command differs from the if command in that it is repeated within one frame until the condition is fulfilled. This is best explained with an example:
Short desiredAmnt
SetStrength 0
while( GetStrength < desiredAmnt ) ; non-literal value to match
modStrength 1
endwhile
This will set strength to the value in variable desiredAmnt after one frame. The following script however would need an undetermined amount of frames to do this, because the if condition is only called once each frame:
if(getStrength < desiredAmnt) ; non-literal value to match
modStrength 1
endif
On the other hand the first example can potentially cause "freezing" (if the value would be very high) while the second won't.
Note that this is a workaround for some functions to the problem of functions not accepting non-literal values (variables) as arguments.
