unity用于android上的旋转缩放脚本

最新推荐文章于 2023-08-19 21:18:01 发布

monkey_stone

最新推荐文章于 2023-08-19 21:18:01 发布

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分类专栏： unity3d unity Android 文章标签： unity 脚本 android 旋转缩放

本文链接：https://blog.youkuaiyun.com/weixin_37921492/article/details/78493415

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本文详细介绍了如何使用Unity开发适用于Android平台的旋转和缩放功能脚本，涵盖了关键的触摸事件处理和交互逻辑，为移动游戏或应用提供更丰富的用户交互体验。

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

public class ScaleRotate : MonoBehaviour {

    private Touch oldTouch1;
    private Touch oldTouch2;


    // Use this for initialization
    void Start () {

    }

    // Update is called once per frame
    void Update () {
        //没有触摸
        if (Input.touchCount<=0) {
            return;
        }

        if (Input.touchCount==1) {
            Touch touch = Input.GetTouch(0);
            Vector2 deltaPos = touch.deltaPosition;
            transform.Rotate(Vector3.down*deltaPos.x,Space.World);
            transform.Rotate(Vector3.right*deltaPos.y,Space.World);
        }

        Touch newTouch1 = Input.GetTouch(0);
        Touch newTouch2 = Input.GetTouch(1);

        if (newTouch2.phase==TouchPhase.Began) {
            oldTouch2 = newTouch2;
            oldTouch1 = newTouch1;
            return;
        }

        float oldDistance = Vector2.Distance(oldTouch1.position,oldTouch2.position);
        float newDistance = Vector2.Distance(newTouch1.position,newTouch2.position);
        float offest = newDistance - oldDistance;

        float scaleFactor = offest / 1000f;
        Vector3 localScale = transform.localScale;
        Vector3 scale = new Vector3(localScale.x+scaleFactor,localScale.y+scaleFactor,+localScale.z+scaleFactor);

        if (scale.x>0.3f&&scale.y>0.3f&&scale.z>0.3f) {
            transform.localScale = scale;
        }

        oldTouch1 = newTouch1;
        oldTouch2 = newTouch2;
    }
}