Question

我正在尝试创建经典的第三人称效果，您右键单击屏幕并按住以旋转相机以查看。我想做的是让光标不可见，并将鼠标光标固定在该点，让相机通过鼠标X /鼠标Y轴旋转。我读过以前的帖子声称除非您使用

，否则无法直接固定鼠标

CursorLockedMode.Locked

但是我不希望我的鼠标跳到屏幕的中心，除非我之后能够将它返回到屏幕上的先前点。在这些帖子中，我已经阅读了唯一的方法，就是可能重新创建光标以进行软件控制，然后你可以操纵它的位置，但我不知道从哪里开始，如果是案件。

            if (rightclicked)
            {
                cursorPosition = currentCursorPosition;
                Cursor.Visible = false;
                //Retrieve MouseX and Mouse Y and rotate camera
            }

基本上，我试图在伪代码中完成此操作，而我所阅读的所有内容都使其无法实现。

提前致谢。

Answer 1

你可以试试这个剧本，看看它是否能回答你的问题？

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CameraRotateOnRightClick : MonoBehaviour {
    public float angularSpeed = 1.0f;
    public Camera targetCam;
    private Vector3 pivotPointScreen;
    private Vector3 pivotPointWorld;
    private Ray ray;
    private RaycastHit hit;

    // Use this for initialization
    void Start () {
        //Set the targetCam here if not assigned from inspector
        if (targetCam == null)
            targetCam = Camera.main;
    }

    // Update is called once per frame
    void Update () {
        //When the right mouse button is down,
        //set the pivot point around which the camera will rotate
        //Also hide the cursor
        if (Input.GetMouseButtonDown (1)) {
            //Take the mouse position
            pivotPointScreen = Input.mousePosition;
            //Convert mouse position to ray
            // Then raycast using this ray to check if it hits something in the scene
            //**Converting the mousepositin to world position directly will
            //**return constant value of the camera position as the Z value is always 0
            ray = targetCam.ScreenPointToRay(pivotPointScreen);
            if (Physics.Raycast(ray, out hit))
            {
                //If it hits something, then we will be using this as the pivot point
                pivotPointWorld = hit.point;
            }
            //targetCam.transform.LookAt (pivotPointWorld);
            Cursor.visible = false;
        }else if(Input.GetMouseButtonUp(1)){
            Cursor.visible = true;
        }
        if (Input.GetMouseButton (1)) {
            //Rotate the camera X wise
            targetCam.transform.RotateAround(pivotPointWorld,Vector3.up, angularSpeed * Input.GetAxis ("Mouse X"));
            //Rotate the camera Y wise
            targetCam.transform.RotateAround(pivotPointWorld,Vector3.right, angularSpeed * Input.GetAxis ("Mouse Y"));
        }

    }
}

Unity锚定鼠标位置以旋转相机

1 个答案: