Terraria 1.4.0.5 Source Code

GameContent/Generation/ShapeFloodFill.cs

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+// Decompiled with JetBrains decompiler
+// Type: Terraria.GameContent.Generation.ShapeFloodFill
+// Assembly: Terraria, Version=1.4.0.5, Culture=neutral, PublicKeyToken=null
+// MVID: 67F9E73E-0A81-4937-A22C-5515CD405A83
+// Assembly location: C:\Users\mikeyisbaeyt\Downloads\depotdownloader-2.4.5\depots\105601\6707058\Terraria.exe
+
+using Microsoft.Xna.Framework;
+using System.Collections.Generic;
+using Terraria.DataStructures;
+using Terraria.WorldBuilding;
+
+namespace Terraria.GameContent.Generation
+{
+  public class ShapeFloodFill : GenShape
+  {
+    private int _maximumActions;
+
+    public ShapeFloodFill(int maximumActions = 100) => this._maximumActions = maximumActions;
+
+    public override bool Perform(Point origin, GenAction action)
+    {
+      Queue<Point> pointQueue = new Queue<Point>();
+      HashSet<Point16> point16Set = new HashSet<Point16>();
+      pointQueue.Enqueue(origin);
+      int maximumActions = this._maximumActions;
+      while (pointQueue.Count > 0 && maximumActions > 0)
+      {
+        Point point = pointQueue.Dequeue();
+        if (!point16Set.Contains(new Point16(point.X, point.Y)) && this.UnitApply(action, origin, point.X, point.Y))
+        {
+          point16Set.Add(new Point16(point));
+          --maximumActions;
+          if (point.X + 1 < Main.maxTilesX - 1)
+            pointQueue.Enqueue(new Point(point.X + 1, point.Y));
+          if (point.X - 1 >= 1)
+            pointQueue.Enqueue(new Point(point.X - 1, point.Y));
+          if (point.Y + 1 < Main.maxTilesY - 1)
+            pointQueue.Enqueue(new Point(point.X, point.Y + 1));
+          if (point.Y - 1 >= 1)
+            pointQueue.Enqueue(new Point(point.X, point.Y - 1));
+        }
+      }
+      while (pointQueue.Count > 0)
+      {
+        Point point = pointQueue.Dequeue();
+        if (!point16Set.Contains(new Point16(point.X, point.Y)))
+        {
+          pointQueue.Enqueue(point);
+          break;
+        }
+      }
+      return pointQueue.Count == 0;
+    }
+  }
+}