Vector2D.bounce() gives imprecise bounced vector

jtiai

I've incoming object as Vector2.UP. I've surface normal in 45 degree angle. Bounce should happen to Vector2.RIGHT but for some strange reason value is (1, -0.000001) which means that bounce happens slightly to right and up.

How should I go and fix that so it would be Vector2.RIGHT?

All other (I have 16 angles surface can turn) seem to work as expected. Only this particular one is a bit off.

Megalomaniak

Looks like floating point precision error margin to me.

cybereality

The seems like normal for float values. Once you operate on floats (or even if you don't) they won't stick to exact values due to precision errors as @Megalomaniak says. For example, you can add 0.5 and 0.5 and end up with 0.99999998 or 1.0000001 and that is completely normal (just an example, I think in real life you might get 1 but it depends on what calculations you are doing).

Calinou

Use is_equal_approx() and is_zero_approx() to compare floating-point values instead of == and !=.