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@@ -0,0 +1,130 @@
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+using FairyGUI;
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+using GFGGame.Launcher;
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+using UnityEngine;
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+
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+namespace GFGGame
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+{
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+ public class ScaleGestureController : SingletonMonoBase<ScaleGestureController>
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+ {
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+ public Transform target; //目标
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+
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+ //缩放
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+ public bool isScaling;
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+ Vector3 touch1, touch2, oriPos, scaleCenter;
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+ float scale, disX, disY, oriScale;
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+ public float scaleSpeed = 1;
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+ public float min = 1f;
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+ public float max = 1.7f;
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+
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+
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+ //移动
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+ private bool isDraging;
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+ private Vector3 offset = Vector3.zero;
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+ public Vector2 uiSize;
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+
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+ private void Update()
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+ {
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+ if (target == null)
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+ {
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+ isScaling = false;
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+ isDraging = false;
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+ return;
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+ }
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+ if(Input.touchCount != 2)
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+ {
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+ isScaling = false;
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+ }
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+ if (isScaling)
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+ {
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+ //两指缩放比例
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+ scale = Vector3.Distance(Camera.main.ScreenToWorldPoint(Input.GetTouch(0).position), Camera.main.ScreenToWorldPoint(Input.GetTouch(1).position)) / Vector3.Distance(touch1, touch2);
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+
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+ //利用scaleSpeed控制缩放速度
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+ scale = (scale - 1) * scaleSpeed;
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+ var targetScale = oriScale + scale;
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+ //给缩放比例加限制
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+ if (targetScale <= min && scale < 0)
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+ {
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+ targetScale = min;
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+ }
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+ if (targetScale >= max && scale > 0)
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+ {
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+ targetScale = max;
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+ }
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+
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+ LogUtil.LogDev($"scaling {oriScale} {scale}");
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+ //缩放目标大小
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+ target.localScale = new Vector3(targetScale, targetScale, 1);
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+ //改变目标位置，让位置保持不变
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+ target.position = new Vector3(oriPos.x - ((target.localScale.x - oriScale) * disX), oriPos.y - ((target.localScale.y - oriScale) * disY), 0);
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+ UpdatePos();
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+ }
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+ if (Input.touchCount == 2)
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+ {
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+ //两指点位
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+ touch1 = Camera.main.ScreenToWorldPoint(Input.GetTouch(0).position);
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+ touch2 = Camera.main.ScreenToWorldPoint(Input.GetTouch(1).position);
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+
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+ //目标初始点位
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+ oriPos = new Vector3(target.position.x, target.position.y, 0);
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+
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+ //两指中点
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+ scaleCenter = new Vector3((Camera.main.ScreenToWorldPoint(Input.GetTouch(0).position).x + Camera.main.ScreenToWorldPoint(Input.GetTouch(1).position).x) / 2, (Camera.main.ScreenToWorldPoint(Input.GetTouch(0).position).y + Camera.main.ScreenToWorldPoint(Input.GetTouch(1).position).y) / 2, 0);
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+
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+ //两指中点和目标距离
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+ disX = scaleCenter.x - oriPos.x;
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+ disY = scaleCenter.y - oriPos.y;
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+ oriScale = target.localScale.x;
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+ LogUtil.LogDev($"start scale {oriPos} {oriScale}");
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+
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+
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+ isScaling = true;
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+ }
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+
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+ if (!Input.GetMouseButton(0) || isScaling)
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+ {
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+ isDraging = false;
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+ return;
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+ }
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+ if (isDraging)
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+ {
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+ target.position = Camera.main.ScreenToWorldPoint(Input.mousePosition - offset);
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+ UpdatePos();
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+ }
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+ else if (Input.GetMouseButtonDown(0))
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+ {
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+ //LogUtil.LogEditor($"DragGestureController {GRoot.inst.touchTarget} {Input.touchCount}");
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+ if (GRoot.inst.touchTarget != null && !(GRoot.inst.touchTarget is GGraph)) return;
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+ isDraging = true;
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+ offset = Input.mousePosition - Camera.main.WorldToScreenPoint(target.position);
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+ }
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+ }
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+
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+ public void UpdatePos()
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+ {
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+ if (target == null) return;
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+ Vector2 size = target.Find("Bg").GetComponent<SpriteRenderer>().size * target.localScale.x;
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+
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+ float deviationWidth = (size.x - uiSize.x / 100) / 2;
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+ float deviationHeigh = (size.y - uiSize.y / 100) / 2;
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+ Vector2 pos = target.transform.position;
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+ if (pos.x <= -deviationWidth)
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+ {
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+ target.transform.position = new Vector2(-deviationWidth, target.transform.position.y);
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+ }
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+ if (pos.x >= deviationWidth)
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+ {
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+ target.transform.position = new Vector2(deviationWidth, target.transform.position.y);
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+ }
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+ if (pos.y <= -deviationHeigh)
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+ {
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+ target.transform.position = new Vector2(target.transform.position.x, -deviationHeigh);
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+ }
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+ if (pos.y >= deviationHeigh)
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+ {
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+ target.transform.position = new Vector2(target.transform.position.x, deviationHeigh);
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+ }
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+ }
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+
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+ }
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+}
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guodong