using UnityEngine;

public class RotationConstraint : MonoBehaviour
{
	public enum EConstraintAxis
	{
		X = 0,
		Y = 1,
		Z = 2
	}

	public EConstraintAxis axis;

	public float min;

	public float max;

	private Vector3 rotateAround;

	private Quaternion minQuaternion;

	private Quaternion maxQuaternion;

	private float range;

	private void Start()
	{
		switch (axis)
		{
		case EConstraintAxis.X:
			rotateAround = Vector3.right;
			break;
		case EConstraintAxis.Y:
			rotateAround = Vector3.up;
			break;
		case EConstraintAxis.Z:
			rotateAround = Vector3.forward;
			break;
		}
		Quaternion quaternion = Quaternion.AngleAxis(base.transform.localRotation.eulerAngles[(int)axis], rotateAround);
		minQuaternion = quaternion * Quaternion.AngleAxis(min, rotateAround);
		maxQuaternion = quaternion * Quaternion.AngleAxis(max, rotateAround);
		range = max - min;
	}

	private void LateUpdate()
	{
		Quaternion localRotation = base.transform.localRotation;
		Quaternion a = Quaternion.AngleAxis(localRotation.eulerAngles[(int)axis], rotateAround);
		float num = Quaternion.Angle(a, minQuaternion);
		float num2 = Quaternion.Angle(a, maxQuaternion);
		if (!(num <= range) || !(num2 <= range))
		{
			Vector3 eulerAngles = localRotation.eulerAngles;
			if (num > num2)
			{
				eulerAngles[(int)axis] = maxQuaternion.eulerAngles[(int)axis];
			}
			else
			{
				eulerAngles[(int)axis] = minQuaternion.eulerAngles[(int)axis];
			}
			base.transform.localEulerAngles = eulerAngles;
		}
	}
}