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2025-10-11 17:42:17 +08:00
parent 4597149228
commit 304c41775a
16 changed files with 0 additions and 0 deletions
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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UIElements;
+using MuHua;
+
+/// <summary>
+/// UI拖拽物品
+/// </summary>
+public class UIInventoryDrag : ModuleUIPanel, UIControl {
+	/// <summary> 画布 </summary>
+	public VisualElement canvas;
+	/// <summary> 是否启用 </summary>
+	public bool isEnable;
+	/// <summary> 鼠标位置 </summary>
+	public Vector2 mousePosition;
+	/// <summary> 偏移位置 </summary>
+	public Vector2 offsetPosition;
+	/// <summary> 物品容器 </summary>
+	public InventoryDrag container;
+	/// <summary> 目标容器 </summary>
+	public InventoryDrag targetContainer;
+
+	public Label Count => Q<Label>("Count");
+	public VisualElement Image => Q<VisualElement>("Image");
+	public VisualElement Preview => Q<VisualElement>("Preview");
+
+	public UIInventoryDrag(VisualElement element, VisualElement canvas) : base(element) {
+		this.canvas = canvas;
+		ModuleUI.AddControl(this);
+		canvas.RegisterCallback<MouseUpEvent>(MouseUpEvent);
+		canvas.RegisterCallback<MouseMoveEvent>(FloatingFunc);
+	}
+	private void MouseUpEvent(MouseUpEvent evt) {
+		if (!isEnable) { return; }
+		isEnable = false;
+		container?.Cancel();
+		element.EnableInClassList("document-page-hide", !isEnable);
+		// 交换物品
+		if (container == null || targetContainer == null) { return; }
+		int count = targetContainer.Count;
+		InventoryItem item = targetContainer.Item;
+		targetContainer.Settings(container.Item, container.Count);
+		container.Settings(item, count);
+	}
+	private void FloatingFunc(MouseMoveEvent evt) {
+		mousePosition = evt.mousePosition;
+	}
+	public void Update() {
+		Preview.transform.position = mousePosition + offsetPosition;
+		// if (targetContainer == null) { return; }
+		// Preview.transform.position = targetContainer.Anchor.worldBound.position;
+	}
+	public void Dispose() {
+		canvas.UnregisterCallback<MouseUpEvent>(MouseUpEvent);
+		canvas.UnregisterCallback<MouseMoveEvent>(FloatingFunc);
+	}
+
+	/// <summary> 设置容器 </summary>
+	public void Settings(InventoryDrag container) {
+		this.container = container;
+
+		isEnable = container.Item != null;
+		element.EnableInClassList("document-page-hide", !isEnable);
+		if (isEnable) { UpdatePreview(); }
+	}
+	/// <summary> 进入容器 </summary>
+	public void EnterContainer(InventoryDrag container) {
+		targetContainer = container;
+	}
+	/// <summary> 退出容器 </summary>
+	public void ExitContainer(InventoryDrag container) {
+		if (targetContainer == container) { targetContainer = null; }
+	}
+
+	private void UpdatePreview() {
+		offsetPosition = container.Anchor.worldBound.position - mousePosition;
+
+		Count.text = container.Count.ToString();
+		Count.EnableInClassList("dragitem-count-hide", container.Count <= 1);
+		Image.style.backgroundImage = new StyleBackground(container.Item.sprite);
+	}
+}
+/// <summary>
+/// 项目拖拽
+/// </summary>
+public interface InventoryDrag {
+	/// <summary> 数量 </summary>
+	public int Count { get; }
+	/// <summary> 物品 </summary>
+	public InventoryItem Item { get; }
+	/// <summary> 锚点 </summary>
+	public VisualElement Anchor { get; }
+
+	/// <summary> 取消拖拽 </summary>
+	public void Cancel();
+	/// <summary> 设置物品 </summary>
+	public void Settings(InventoryItem item, int count);
+}