in my project im making a wandering AI, it rotates a random amount with this
transform.Rotate (0, 0, Random.Range(-2, 2));
however it always rotates negative unless I make the max range 3 or more, how can I fix it so each number has an equal chance of working?
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You are using the integer version of Random.Range which is inclusive on the lower bound and exclusive on the upper bound, meaning Random.Range(-2, 2) has a possibility of selecting -2, -1, 0, or 1 with equal probability. If you change the upper range to 3, then Random.Range(-2, 3) has a possibility of selecting -2, -1, 0, 1, or 2, which is what you want.
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Alternatively, if you don’t want it to select only whole numbers and rather have it use any value between -2 and 2, you could use the float version of Random.Range by calling Random.Range(-2f, 2f)