Add a force at an angle

Question

How do I add a force at specific angle to an object? Currently I am trying to do the following:

 rigidbody2D.AddForce(new Vector2(1,Mathf.Cos(angle))*force);

where angle would represent the angle at which the force is added, so if i wanted a force straight up then angle would be 90. However this does not seem to work, and I would like to know what the correct way to accomplish this is. I am using C# and unity 2D

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Answer by robertbu · Mar 04, 2014 at 05:20 AM

How about this:

  Vector3 dir = Quaternion.AngleAxis(angle, Vector3.forward) * Vector3.right;
  rigidbody2D.AddForce(dir*force);

The angle starts on the right and goes counter-clockwise.

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slehmann101 · Mar 07, 2014 at 05:03 AM 0

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I get the error

UnityEngine.$$anonymous$$athf' does not contain a definition for `AngleAxis'

robertbu · Mar 07, 2014 at 05:14 AM 0

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Sorry. It is Quaternion.AngleAxis(). Code sample fixed.

slehmann101 · Mar 07, 2014 at 11:18 PM 0

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thank you

Add a force at an angle

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