75 lines
2.6 KiB
C#
75 lines
2.6 KiB
C#
//
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using System.Collections.Generic;
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using EventCubeMelt;
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using UnityEngine;
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using UnityEngine.EventSystems;
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namespace EventCubeMelt.UI
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{
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public class UIDragManager : MonoBehaviour
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{
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public static UIDragManager Instance;
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[HideInInspector]
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public RectTransform dragContainer; // 用于存放正在拖拽的物体的容器
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private Dictionary<int, Queue<PieceRenderer>> _pools = new(); // 对象池
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private Canvas _rootCanvas; // 主Canvas，用于坐标计算
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private void Awake()
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{
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if (!Instance)
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Instance = this;
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_rootCanvas = GetComponentInParent<Canvas>();
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dragContainer = GetComponent<RectTransform>();
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InitializePools();
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}
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private void InitializePools()
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{
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}
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//
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#region LOG
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private static void ELog(string message)
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{
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#if UNITY_EDITOR
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if (!EventCubeMeltLogPolicy.EnableELog) return;
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Debug.Log($"<color=orange> UIDragManager => {message} </color>");
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#endif
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}
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#endregion
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// 创建可拖动Piece
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public PieceRenderer CreateDragPiece(GameObject go, PointerEventData eventData)
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{
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var newItem = Instantiate(go,transform);
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newItem.gameObject.name = "DragPiece";
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var pieceRender = newItem.GetComponent<PieceRenderer>();
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if (!pieceRender)
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{
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pieceRender = newItem.AddComponent<PieceRenderer>();
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}
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pieceRender.CopyData(go.GetComponent<PieceRenderer>());
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pieceRender.OffsetYWithDelta = pieceRender.OffsetY;
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UpdatePiecePos(eventData, pieceRender);
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pieceRender.transform.localScale = Vector3.one * pieceRender.ScaleFactor;
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pieceRender.gameObject.SetActive(true);
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return pieceRender;
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}
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public void UpdatePiecePos(PointerEventData eventData, PieceRenderer pieceRender,float diff = 0f)
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{
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var offset = pieceRender.OffsetYWithDelta + diff;
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var screenPosition = eventData.position;
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var scrPos = new Vector2(screenPosition.x, screenPosition.y + offset);
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ELog($"UpdatePiecePos ->{diff} {offset} ");
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// 设置初始位置（在手指下方一点，视觉效果更好）
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RectTransformUtility.ScreenPointToWorldPointInRectangle( dragContainer, scrPos, _rootCanvas.worldCamera, out var worldPos);
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pieceRender.transform.position = worldPos;
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}
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}
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} |