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Question by markfm · Dec 28, 2012 at 09:30 PM · quaternionconversioneuler

Shooting towards a point using quaternions.

Hi,

I have been looking for a while now with no luck. This issue I have is that I am using Quaternion angle and not Quaternion.euler . In a nutshell I am trying to shoot a box from one point to another.

Point A- Being a touchscreen Tap Point B- Being an object which fires.

 ball = GameObject.Find("MainBall"); 
 Vector3 velforce = calculatePlatformRotation(ball.transform.localPosition,fingerPos) * 1200;
 ball.rigidbody.AddForce(velforce);

CalculatePlatformRotation returns a Quaternion Angle based on the position on the ball and the finger tap. Does anyone have a way around this? The error I am seeing is:

Operator *' cannot be applied to operands of type UnityEngine.Quaternion' and `int'

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avatar image robertbu · Jan 12, 2013 at 07:04 AM 0
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Not enough info for an answer, but you can get eulerAngles from the Quaternion returned by calculatePlatformRotation. Another possibility is to use Transform.LookAt() and then Rigidbody.AddRelativeForce().

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