搭建框架

Assets/ModuleCore/ModuleItem/Inventory.cs

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+using System.Linq;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+/// <summary>
+/// 物品库存
+/// </summary>
+public class Inventory {
+	/// <summary> 插槽列表 </summary>
+	public List<InventorySlot> slots = new List<InventorySlot>();
+
+	/// <summary> 添加物品 </summary>
+	public void AddItem(InventorySlot slot) {
+		if (MergeToSlots(slot)) { return; }
+		// 如果还有剩余，按照MaxStack分批放入空位
+		while (slot.count > 0) { slot.count = AddToSlots(slot); }
+	}
+	/// <summary> 添加到插槽 </summary>
+	public int AddToSlots(InventorySlot slot) {
+		InventorySlot emptySlot = slots.FirstOrDefault(s => s.item == null);
+		if (emptySlot == null) { Debug.Log("库存没有空位了!"); return 0; }
+		// 填充插槽
+		int addCount = Mathf.Min(slot.count, slot.MaxStack);
+		emptySlot.Settings(slot.item, addCount);
+		// 计算余量
+		return slot.count - addCount;
+	}
+	/// <summary> 合并到插槽 </summary>
+	public bool MergeToSlots(InventorySlot slot) {
+		int remain = slot.count;
+		// 查询所有可合并的插槽
+		var sameSlots = slots.Where(slot => slot.Merge(slot)).ToList();
+		// 合并到已有插槽
+		sameSlots.ForEach(obj => MergeToSlots(obj, ref remain));
+		slot.count = remain;
+		return remain == 0;
+	}
+	/// <summary> 合并到插槽 </summary>
+	public void MergeToSlots(InventorySlot slot, ref int remain) {
+		int canAdd = slot.MaxStack - slot.count;
+		int add = Mathf.Min(canAdd, remain);
+		slot.count += add;
+		remain -= add;
+	}
+}
+/// <summary>
+/// 库存插槽
+/// </summary>
+public class InventorySlot {
+	/// <summary> 数量 </summary>
+	public int count;
+	/// <summary> 物品 </summary>
+	public DataItem item;
+
+	/// <summary> 堆叠数量 </summary>
+	public virtual int MaxStack => item != null ? item.MaxStack : 0;
+
+	public InventorySlot() { }
+
+	public InventorySlot(DataItem item, int count) {
+		this.item = item;
+		this.count = count;
+	}
+	public void Settings(DataItem item, int count) {
+		this.item = item;
+		this.count = count;
+	}
+
+	/// <summary> 是否允许合并 </summary>
+	public bool Merge(InventorySlot slot) {
+		if (item == null || slot == null || slot.item == null) { return false; }
+		if (count >= item.MaxStack) { return false; }
+		return slot.item.name == item.name;
+	}
+}