Convert z rotation into Vector2

Question

Hello guys, I need to convert a rotation z into Vector2.

If z = 0 => Vector2(1,0)

if z = 45 => Vector2(0.5,0.5)

if z = 90 => Vector2(0,1)

if z = -90 => Vector2(0,-1)

if z = 180 => Vector2(-1,0)

Hope you get the idea. If this function exist, please link it for me. Thanks for your time.

Answer 1

Answer by EvilFox · Apr 29, 2016 at 10:51 PM

Not quite, but it can be the starting point:

     float fRotation = rb.rotation * Mathf.Deg2Rad;
     float fX = Mathf.Sin(fRotation);
     float fY = Mathf.Cos(fRotation);
     Vector2 v2 = new Vector2(fY, fX);
     Debug.Log(v2);

0 = 1.0, 0.0

45 = 0.7, 0.7

90 = 0.0, 1.0

-90 = 0.0, -1.0

180 = -1.0, 0.0

If you divide by Mathf.Sqrt (2.0f) you will get 0.5 at 45 degrees, but other numbers will be different.

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Itai_Levin · Apr 20, 2018 at 11:38 AM 0

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Thanks!! I've been searching this for months!

m-9700468 · Jan 22 at 12:48 AM 0

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Thanks it worked for me but i had to $$anonymous$$us rb.rotation with 90 [float fRotation = (rb.rotation - 90) * Matf.Deg2Rad]

Convert z rotation into Vector2

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