Angle to Rotation

Question

I'm trying to make the gun follow and look at the mouse in 2D. So I calculate the angle between the mouse position and front direction of the gun.

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What is then the proper way to then rotate the gun based upon the angle?

EDIT: so that little stick needs to be aligned with the red ray.

This is why I cant use lookAt. The gun flips:

alt text

Thanks.

Answer 1

Answer by sneftel · Jul 07, 2011 at 03:07 PM

There's really no reason to bring angles into this. You can transform the mouse position into world coordinates, then use Transform.LookAt() to orient the gun towards it.

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NinjaSquirrel · Jul 07, 2011 at 07:22 PM 0

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That "flips" the gun plane around each time you move the mouse from one side of the screen to the other.

flaviusxvii · Jul 07, 2011 at 07:25 PM 0

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You want the gun to go upside down?

NinjaSquirrel · Jul 07, 2011 at 07:34 PM 0

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I'm not sure what you mean.

flaviusxvii · Jul 07, 2011 at 07:38 PM 0

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Right.. lack of clarity is the problem here.. You need bigger and better pictures apparently.. describe this 'flip' you don't like. Give your gun a clear 'top' and 'bottom' and show us what it should look like in various situations.

NinjaSquirrel · Jul 07, 2011 at 07:53 PM 0

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Added clarification. ^

Answer 2

Answer by NinjaSquirrel · Jul 07, 2011 at 08:02 PM

I solved this by using Quaternion.FromToRotation. I will delete this question is it is messy and I did not describe the problem like I should have.

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Angle to Rotation

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