feat: 添加区域传送功能，模仿逆重飞船机制

Source/WulaFallenEmpire/Designator/Designator_TeleportArrival.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Linq;
 using RimWorld;
 using UnityEngine;
 using Verse;
@@ -9,14 +10,18 @@ namespace WulaFallenEmpire
     {
         private CompMapTeleporter teleporter;
         private Map targetMap;
+        private WULA_TeleportLandingMarker marker;
+        private List<Thing> thingsToTeleport = new List<Thing>();
+        private IntVec3 sourceCenter;
 
         public override string Label => "WULA_SelectArrivalPoint".Translate();
         public override string Desc => "WULA_SelectArrivalPointDesc".Translate();
 
-        public Designator_TeleportArrival(CompMapTeleporter teleporter, Map targetMap)
+        public Designator_TeleportArrival(CompMapTeleporter teleporter, Map targetMap, WULA_TeleportLandingMarker marker = null)
         {
             this.teleporter = teleporter;
             this.targetMap = targetMap;
+            this.marker = marker;
             this.useMouseIcon = true;
             this.soundDragSustain = SoundDefOf.Designate_DragStandard;
             this.soundDragChanged = SoundDefOf.Designate_DragStandard_Changed;
@@ -27,9 +32,9 @@ namespace WulaFallenEmpire
         {
             if (!loc.InBounds(targetMap)) return false;
             
-            // 检查半径区域是否有效
-            float radius = teleporter.Props.radius;
-            foreach (IntVec3 cell in GenRadial.RadialCellsAround(loc, radius, true))
+            // 检查区域是否有效
+            CellRect rect = CellRect.CenteredOn(loc, teleporter.Props.areaSize.x, teleporter.Props.areaSize.z);
+            foreach (IntVec3 cell in rect)
             {
                 if (!cell.InBounds(targetMap)) return "WULA_OutOfBounds".Translate();
                 
@@ -71,19 +76,92 @@ namespace WulaFallenEmpire
 
         public override void DesignateSingleCell(IntVec3 c)
         {
-            teleporter.ConfirmArrival(c, targetMap);
-            Find.DesignatorManager.Deselect();
+            if (marker != null)
+            {
+                marker.Position = c;
+                Find.DesignatorManager.Deselect();
+                Find.Selector.ClearSelection();
+                Find.Selector.Select(marker);
+            }
+            else
+            {
+                teleporter.ConfirmArrival(c, targetMap);
+                Find.DesignatorManager.Deselect();
+            }
         }
 
         public override void Selected()
         {
-            GenDraw.DrawRadiusRing(UI.MouseCell(), teleporter.Props.radius);
+            CacheThings();
+            DrawRect();
+        }
+
+        public override void SelectedUpdate()
+        {
+            DrawRect();
+            DrawGhosts();
         }
         
         public override void DrawMouseAttachments()
         {
             base.DrawMouseAttachments();
-            GenDraw.DrawRadiusRing(UI.MouseCell(), teleporter.Props.radius);
+            DrawRect();
+        }
+
+        private void DrawRect()
+        {
+            GenDraw.DrawFieldEdges(CellRect.CenteredOn(UI.MouseCell(), teleporter.Props.areaSize.x, teleporter.Props.areaSize.z).Cells.ToList());
+        }
+
+        private void CacheThings()
+        {
+            thingsToTeleport.Clear();
+            if (teleporter.parent == null || teleporter.parent.Map == null) return;
+
+            sourceCenter = teleporter.parent.Position;
+            Map sourceMap = teleporter.parent.Map;
+            CellRect rect = CellRect.CenteredOn(sourceCenter, teleporter.Props.areaSize.x, teleporter.Props.areaSize.z);
+            
+            foreach (IntVec3 cell in rect)
+            {
+                if (!cell.InBounds(sourceMap)) continue;
+                foreach (Thing t in sourceMap.thingGrid.ThingsListAt(cell))
+                {
+                    if (t.def.category == ThingCategory.Building || t.def.category == ThingCategory.Item || t.def.category == ThingCategory.Pawn)
+                    {
+                        if (t != teleporter.parent) thingsToTeleport.Add(t);
+                    }
+                }
+            }
+            // 添加自身
+            thingsToTeleport.Add(teleporter.parent);
+        }
+
+        private void DrawGhosts()
+        {
+            IntVec3 mouseCell = UI.MouseCell();
+            if (!mouseCell.InBounds(targetMap)) return;
+
+            foreach (Thing t in thingsToTeleport)
+            {
+                if (t == null || t.Destroyed) continue;
+                if (t.Graphic == null) continue;
+                
+                IntVec3 relativePos = t.Position - sourceCenter;
+                IntVec3 drawPos = mouseCell + relativePos;
+                
+                if (drawPos.InBounds(targetMap))
+                {
+                    try
+                    {
+                        GhostUtility.GhostGraphicFor(t.Graphic, t.def, Color.white).DrawFromDef(drawPos.ToVector3ShiftedWithAltitude(AltitudeLayer.Blueprint), t.Rotation, t.def);
+                    }
+                    catch
+                    {
+                        // 忽略绘制错误，防止UI崩溃
+                    }
+                }
+            }
         }
     }
 }