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  • [Unity 3D]用鼠标滚轮实现镜头放大和缩放,并添加距离限制

     1 public class CameraMove : MonoBehaviour {
     2     private Camera c;
     3     private float mouseCenter;
     4     private int maxView = 120;
     5     private int minView = 10;
     6     private float slideSpeed = 20;
     7 
     8 
     9 
    10     private void Start() {
    11         //获取摄像头组件
    12         c = this.GetComponent<Camera>();
    13 
    14     }
    15 
    16 
    17     private void Update() {
    18     
    19         //获取虚拟按键(鼠标中轴滚轮)
    20         float  mouseCenter = Input.GetAxis("Mouse ScrollWheel");

          //鼠标滑动中键滚轮,实现摄像机的镜头放大和缩放
    //mouseCenter < 0 = 负数 往后滑动,缩放镜头
    21 if (mouseCenter <0 ) {
               //滑动限制
    24 if (c.fieldOfView <= maxView) { 25 c.fieldOfView += 10 * slideSpeed*Time.deltaTime; 26 if (c.fieldOfView >= maxView) { 27 c.fieldOfView = minView; 28 } 29 } 30 //mouseCenter >0 = 正数 往前滑动,放大镜头 31 } else if (mouseCenter >0 ) {
                //滑动限制
    32 if (c.fieldOfView >= minView) { 33 c.fieldOfView -= 10 * slideSpeed* 34 Time.deltaTime; 35 if (c.fieldOfView <= minView) { 36 c.fieldOfView = maxView; 37 } 38 } 39 } 40 } 41 }

    注意看Field of View值的变化

    时间若流水,恍惚间逝去
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  • 原文地址:https://www.cnblogs.com/alanshreck/p/13559303.html
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