右键旋转物体

右键旋转物体用Quaternion实现，unity封装的非常好，用AngleAxis即可。其实也可以旋转相机来实现。代码如下：

 

 

public class RotateComponent : MonoBehaviour {
    public enum RotationAxes { MouseXAndY = 0, MouseX = 1, MouseY = 2 }	
    public RotationAxes axes = RotationAxes.MouseX;	
    public float sensitivityX = 15F;	
    public float sensitivityY = 15F;
    public float minimumX = -360F;	
    public float maximumX = 360F;
    public float minimumY = -60F;	
    public float maximumY = 60F;
    float rotationX=0F;
    float rotationY = 0F;
	//支持中文
	// Use this for initialization

    void Update()
    {
        if (Input.GetMouseButton(1))
        {
            rotationX = -Input.GetAxis("Mouse X") * sensitivityX;
            rotationY = Input.GetAxis("Mouse Y") * sensitivityY;
            rotationX = ClampAngle(rotationX, minimumX, maximumX);
            rotationY = ClampAngle(rotationY, minimumY, maximumY);

            Quaternion xQuaternion = Quaternion.AngleAxis(rotationX, Vector3.up);
            Quaternion yQuaternion = Quaternion.AngleAxis(rotationY, Vector3.right);
            if (axes == RotationAxes.MouseXAndY)
            {
                transform.localRotation = transform.localRotation * xQuaternion * yQuaternion;
            }
            else if (axes == RotationAxes.MouseX)
            {
                transform.localRotation = transform.localRotation * xQuaternion;
            }
            else
            {
                transform.localRotation = transform.localRotation * yQuaternion;
            }
        }
    }
    
    float ClampAngle(float rotation,float min,float max){
        return Mathf.Clamp(rotation,min,max);
    }
}