Question

我在XY平面上有2D网格。我有以下脚本将相机移动到平面上，相机从（0,0，-10）开始。

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

public class DragMap : MonoBehaviour {
private float dist;
private Vector3 MouseStart;
private Vector3 derp;

void Start () {
    dist = transform.position.z;  // Distance camera is above map
}

void Update () {
    if (Input.GetMouseButtonDown (2)) {
        MouseStart = new Vector3(Input.mousePosition.x, Input.mousePosition.y, dist);
        MouseStart = Camera.main.ScreenToWorldPoint (MouseStart);
        MouseStart.z = transform.position.z;

    } 
    else if (Input.GetMouseButton (2)) {
        var MouseMove = new Vector3(Input.mousePosition.x, Input.mousePosition.y, dist);
        MouseMove = Camera.main.ScreenToWorldPoint (MouseMove);
        MouseMove.z = transform.position.z;
        transform.position = transform.position - (MouseMove - MouseStart);
    }
}
}

但我不能为我的生活找出要改变的内容，这样如果我将鼠标向右拖动，相机会向左移动，反之亦然。同样，如果我向上拖动鼠标，我想将相机向下移动，反之亦然。救命！

感谢您的回复。

-DrOmega。

Answer 1

你需要否定MouseMove向量的x才能翻转x移动：

MouseMove = new Vector3(-MouseMove.x, MouseMove.y, MouseMove.z);

Answer 2

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

public class DragMap : MonoBehaviour {
private float dist;
private Vector3 MouseStart;
private Vector3 derp;

void Start () {
    dist = transform.position.z;  // Distance camera is above map
}

void Update () {
    if (Input.GetMouseButtonDown (2)) {
        MouseStart = new Vector3(Input.mousePosition.x, Input.mousePosition.y, dist);
        MouseStart = Camera.main.ScreenToWorldPoint (MouseStart);
        MouseStart.z = transform.position.z;

    } 
    else if (Input.GetMouseButton (2)) {
        var MouseMove = new Vector3(Input.mousePosition.x, Input.mousePosition.y, dist);
        MouseMove = Camera.main.ScreenToWorldPoint (MouseMove);
        MouseMove.z = transform.position.z;
        transform.position = transform.position - (MouseMove - MouseStart);
    }
}
}

这里有一个简单的解决方法。如果要同时翻转x和y，请将“-（MouseMove-MouseStart）”替换为“ +（MouseMove-MouseStart）”

Unity，脚本拖动相机

2 个答案: