Rotation is starting at 0, how do I use Math.Clamp() on it?

Questions & Answers
1

I have a plane that I’m rotating with the arrow keys along the x and z axis’. The rotation starts at 0, so when I try to limit rotation with aMathf.Clamp(), like Mathf.Clamp(clampedRotation.x, -20, 20)`, it works in one direction but not the other because it leaps from 360 to 20.

Are there other properties I can use a negative number? Or some concept I’m missing? I can’t figure out how to get this right using positive numbers (but I’m no genius when it comes to the math, either). Thanks!

2

hi, i hope this will help

//the vlaues you want to clamp to
float maxValueX=20;
float minValueX=-20;

//example for the x axis
// make a quaternion with only the x rotation 
	    Quaternion xRotation = Quaternion.Euler(transform.eulerAngles.x, 0, 0);

//get the angle from the state of no rotation - will give you the change form 0 in positive angles
	    float angle = Quaternion.Angle(Quaternion.identity, xRotation);
	    float fixedAngle = angle;
//if the euler angle x is greater than 180 your angle should be a minus 
if (xRotation.eulerAngles.x>180)
{
    fixedAngle *= -1;
}
	    float clampedX = Mathf.Clamp(fixedAngle, minValueX, maxValueX);
Quaternion fixedRotationX = Quaternion.Euler(clampedX, 0, 0);
//set the fixed Rotation
transform.rotation = fixedRotationX;