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Source/WulaFallenEmpire/BuildingComp/WULA_TransformAtFullCapacity/TransformValidationUtility.cs

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+using RimWorld;
+using System.Collections.Generic;
+using System.Text;
+using UnityEngine;
+using Verse;
+using System.Linq;
+
+namespace WulaFallenEmpire
+{
+    public static class TransformValidationUtility
+    {
+        /// <summary>
+        /// 检查位置是否可以放置目标建筑（通用版本）
+        /// </summary>
+        public static bool CanPlaceBuildingAt(ThingDef buildingDef, IntVec3 center, Map map, Faction faction, out string failReason)
+        {
+            return CanPlaceBuildingAt(buildingDef, center, map, faction, null, out failReason);
+        }
+
+        /// <summary>
+        /// 检查位置是否可以放置目标建筑（带忽略物体版本）
+        /// </summary>
+        public static bool CanPlaceBuildingAt(ThingDef buildingDef, IntVec3 center, Map map, Faction faction, Thing thingToIgnore, out string failReason)
+        {
+            failReason = null;
+
+            // 1. 检查建筑定义
+            if (buildingDef == null)
+            {
+                failReason = "目标建筑定义为空";
+                return false;
+            }
+
+            // 2. 检查建筑尺寸是否为奇数（根据您的需求）
+            if (!IsOddSizedBuilding(buildingDef))
+            {
+                failReason = $"建筑 {buildingDef.LabelCap} 的尺寸不是奇数，不符合放置要求";
+                return false;
+            }
+
+            // 3. 检查地图边界
+            if (!IsWithinMapBounds(buildingDef, center, map, out failReason))
+                return false;
+
+            // 4. 检查地形affordance
+            if (!HasValidTerrainAffordance(buildingDef, center, map, out failReason))
+                return false;
+
+            // 5. 检查其他建筑挤占（排除要忽略的物体）
+            if (!IsAreaClearOfBlockingBuildings(buildingDef, center, map, thingToIgnore, out failReason))
+                return false;
+
+            // 6. 检查特殊放置条件（如不可放置在水上等）
+            if (!MeetsSpecialPlacementConditions(buildingDef, center, map, out failReason))
+                return false;
+
+            // 7. 使用RimWorld原生的放置检查（最终验证）
+            if (!GenConstruct.CanPlaceBlueprintAt(buildingDef, center, Rot4.North, map, false, null, null, null))
+            {
+                failReason = "该位置不符合建筑放置要求";
+                return false;
+            }
+
+            return true;
+        }
+
+        /// <summary>
+        /// 检查建筑尺寸是否为奇数
+        /// </summary>
+        public static bool IsOddSizedBuilding(ThingDef buildingDef)
+        {
+            return buildingDef.Size.x % 2 == 1 && buildingDef.Size.z % 2 == 1;
+        }
+
+        /// <summary>
+        /// 检查地图边界
+        /// </summary>
+        private static bool IsWithinMapBounds(ThingDef buildingDef, IntVec3 center, Map map, out string failReason)
+        {
+            CellRect occupiedRect = GenAdj.OccupiedRect(center, Rot4.North, buildingDef.Size);
+            
+            if (!occupiedRect.InBounds(map))
+            {
+                failReason = "建筑超出地图边界";
+                return false;
+            }
+
+            failReason = null;
+            return true;
+        }
+
+        /// <summary>
+        /// 检查地形affordance
+        /// </summary>
+        private static bool HasValidTerrainAffordance(ThingDef buildingDef, IntVec3 center, Map map, out string failReason)
+        {
+            TerrainAffordanceDef requiredAffordance = buildingDef.terrainAffordanceNeeded;
+            if (requiredAffordance == null)
+            {
+                // 如果没有指定affordance要求，则跳过检查
+                failReason = null;
+                return true;
+            }
+
+            CellRect occupiedRect = GenAdj.OccupiedRect(center, Rot4.North, buildingDef.Size);
+            
+            foreach (IntVec3 cell in occupiedRect)
+            {
+                if (!cell.InBounds(map))
+                    continue;
+
+                TerrainDef terrain = map.terrainGrid.TerrainAt(cell);
+                if (terrain == null || !terrain.affordances.Contains(requiredAffordance))
+                {
+                    failReason = $"地形 {terrain?.LabelCap ?? "未知"} 不支持放置 {buildingDef.LabelCap}";
+                    return false;
+                }
+            }
+
+            failReason = null;
+            return true;
+        }
+
+        /// <summary>
+        /// 检查区域是否被其他建筑阻挡（排除指定物体）
+        /// </summary>
+        private static bool IsAreaClearOfBlockingBuildings(ThingDef buildingDef, IntVec3 center, Map map, Thing thingToIgnore, out string failReason)
+        {
+            CellRect occupiedRect = GenAdj.OccupiedRect(center, Rot4.North, buildingDef.Size);
+            List<Thing> blockingThings = new List<Thing>();
+
+            foreach (IntVec3 cell in occupiedRect)
+            {
+                if (!cell.InBounds(map))
+                    continue;
+
+                // 检查该单元格上的所有建筑
+                List<Thing> thingList = map.thingGrid.ThingsListAt(cell);
+                foreach (Thing thing in thingList)
+                {
+                    // 跳过要忽略的物体（如被转换的Pawn本身）
+                    if (thing == thingToIgnore)
+                        continue;
+
+                    if (thing.def.category == ThingCategory.Building || thing.def.category == ThingCategory.Pawn)
+                    {
+                        // 忽略蓝图和框架
+                        if (thing.def.IsBlueprint || thing.def.IsFrame)
+                            continue;
+
+                        // 忽略被转换的Pawn本身
+                        if (thing == thingToIgnore)
+                            continue;
+
+                        blockingThings.Add(thing);
+                    }
+                }
+            }
+
+            if (blockingThings.Count > 0)
+            {
+                StringBuilder sb = new StringBuilder();
+                sb.AppendLine("以下物体阻挡了建筑放置:");
+                
+                foreach (Thing thing in blockingThings)
+                {
+                    sb.AppendLine($"  - {thing.LabelCap}");
+                }
+                
+                failReason = sb.ToString().TrimEnd();
+                return false;
+            }
+
+            failReason = null;
+            return true;
+        }
+
+        /// <summary>
+        /// 检查特殊放置条件
+        /// </summary>
+        private static bool MeetsSpecialPlacementConditions(ThingDef buildingDef, IntVec3 center, Map map, out string failReason)
+        {
+            CellRect occupiedRect = GenAdj.OccupiedRect(center, Rot4.North, buildingDef.Size);
+
+            // 检查是否在水体上
+            foreach (IntVec3 cell in occupiedRect)
+            {
+                if (!cell.InBounds(map))
+                    continue;
+
+                TerrainDef terrain = map.terrainGrid.TerrainAt(cell);
+                if (terrain != null && (terrain.IsWater || terrain.defName.Contains("Water")))
+                {
+                    failReason = "无法在水体上放置建筑";
+                    return false;
+                }
+
+                // 检查是否在不可建造的地形上
+                if (terrain != null && !terrain.BuildableByPlayer)
+                {
+                    failReason = $"地形 {terrain.LabelCap} 不可建造";
+                    return false;
+                }
+            }
+
+            failReason = null;
+            return true;
+        }
+
+        /// <summary>
+        /// 获取建筑占用的所有单元格
+        /// </summary>
+        public static List<IntVec3> GetOccupiedCells(ThingDef buildingDef, IntVec3 center)
+        {
+            return GenAdj.OccupiedRect(center, Rot4.North, buildingDef.Size).Cells.ToList();
+        }
+    }
+}