Unity-双指控制对象缩放

最新推荐文章于 2024-11-20 17:47:46 发布

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最新推荐文章于 2024-11-20 17:47:46 发布 · 2.8k 阅读

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CC 4.0 BY-SA版权

代码如下，可以通过双指直接对对象进行缩放，如有新增需求，可以进行扩展

using System.Collections.Generic;
using UnityEngine;

public class ScaleByTwoFinger : MonoBehaviour
{
    private float _minValue = 1;
    private float _maxValue = 5;
    private float _speed = 1;
    private float _defaultSpeed = 800;
    private float _lastDistance;
    private float _twoTouchDistance;
    private Vector3 _firstTouch;
    private Vector3 _secondTouch;
    private List<Transform> _targets = new List<Transform>();

    private void Update()
    {
        if (Input.touchCount <= 1 || _targets.Count == 0)
        {
            return;
        }

        _firstTouch = Input.touches[0].position;
        _secondTouch = Input.touches[1].position;
        _twoTouchDistance = Vector2.Distance(_firstTouch, _secondTouch);
        if (Input.GetTouch(1).phase == TouchPhase.Began)
        {
            _lastDistance = _twoTouchDistance;
        }

        foreach (var item in _targets)
        {