屏幕坐标转世界坐标(小球发射)

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/u010889653/article/details/79425953

using UnityEngine;


public class GunFollow : MonoBehaviour
{
    public RectTransform UGUICanvas;
    public Camera mainCamera;


    void Update()
    {
        Vector3 mousePos;
        RectTransformUtility.ScreenPointToWorldPointInRectangle(UGUICanvas, new Vector2(Input.mousePosition.x, Input.mousePosition.y), mainCamera, out mousePos);
        float z;
        if (mousePos.x > transform.position.x)
        {
            z = -Vector3.Angle(Vector3.up, mousePos - transform.position);
        }
        else
        {
            z = Vector3.Angle(Vector3.up, mousePos - transform.position);
        }
        transform.localRotation = Quaternion.Euler(0, 0, z);
    }
}