diff --git a/isometric-park-fna/Engines/BuildToolEngine.cs b/isometric-park-fna/Engines/BuildToolEngine.cs
--- a/isometric-park-fna/Engines/BuildToolEngine.cs
+++ b/isometric-park-fna/Engines/BuildToolEngine.cs
@@ -98,6 +98,34 @@
             }
         }
 
+        private void SpawnPointSelection(Tool tool) {
+            foreach (ref readonly var message in ReadMessages<SpawnSelection>())
+            {
+                if (message.Start.X >= 0 && message.Start.X < this.Map.MapWidth
+                        && message.Start.Y >= 0 && message.Start.Y < this.Map.MapHeight) {
+                    var entity = CreateEntity();
+
+                    AddComponent(entity, new PointComponent {Square = message.Start,
+                            Tool=tool});
+                    AddComponent(entity, new SelectedComponent { selected = true, Type= SelectionType.Area});
+                }
+            }
+        }
+
+        private void SpawnAreaSelection(Tool tool) {
+            foreach (ref readonly var message in ReadMessages<SpawnSelection>())
+            {
+                if (message.Start.X >= 0 && message.Start.X < this.Map.MapWidth
+                        && message.Start.Y >= 0 && message.Start.Y < this.Map.MapHeight) {
+                    var entity = CreateEntity();
+
+                    AddComponent(entity, new AreaComponent { squares = new[] {message.Start},
+                            Tool = tool});
+                    AddComponent(entity, new SelectedComponent { selected = true, Type= SelectionType.Area});
+                }
+            }
+        }
+
         public List<Vector2> GetOccupied() {
             List<Vector2> occupied = new List<Vector2>();
 
@@ -134,17 +162,7 @@
                     occupied.AddRange(entitySquares);
                 }
 
-                foreach (ref readonly var message in ReadMessages<SpawnSelection>())
-                {
-                    if (message.Start.X >= 0 && message.Start.X < this.Map.MapWidth
-                            && message.Start.Y >= 0 && message.Start.Y < this.Map.MapHeight) {
-                        var entity = CreateEntity();
-
-                        AddComponent(entity, new AreaComponent { squares = new[] {message.Start} ,
-                                Tool=Tool.Preserve});
-                        AddComponent(entity, new SelectedComponent { selected = true, Type= SelectionType.Area});
-                    }
-                }
+                SpawnAreaSelection(Tool.Preserve);
 
                 foreach (ref readonly var message in ReadMessages<AdjustSelection>()) {
                     foreach (ref readonly var entity in ReadEntities<SelectedComponent>()) {
@@ -183,17 +201,7 @@
                 }
             }
             else if (statuses.ContainsKey(Tool.Dezone) && statuses[Tool.Dezone]) {
-                foreach (ref readonly var message in ReadMessages<SpawnSelection>())
-                {
-                    if (message.Start.X >= 0 && message.Start.X < this.Map.MapWidth
-                            && message.Start.Y >= 0 && message.Start.Y < this.Map.MapHeight) {
-                        var entity = CreateEntity();
-
-                        AddComponent(entity, new AreaComponent { squares = new[] {message.Start},
-                                Tool = Tool.Dezone });
-                        AddComponent(entity, new SelectedComponent { selected = true, Type= SelectionType.Area});
-                    }
-                }
+                SpawnAreaSelection(Tool.Dezone);
 
                 foreach (ref readonly var message in ReadMessages<AdjustSelection>()) {
                     foreach (ref readonly var entity in ReadEntities<SelectedComponent>()) {
@@ -228,17 +236,7 @@
                 }
             }
             else if (statuses.ContainsKey(Tool.Tower) && statuses[Tool.Tower]) {
-                foreach (ref readonly var message in ReadMessages<SpawnSelection>())
-                {
-                    if (message.Start.X >= 0 && message.Start.X < this.Map.MapWidth
-                            && message.Start.Y >= 0 && message.Start.Y < this.Map.MapHeight) {
-                        var entity = CreateEntity();
-
-                        AddComponent(entity, new PointComponent {Square = message.Start,
-                                Tool=Tool.Tower});
-                        AddComponent(entity, new SelectedComponent { selected = true, Type= SelectionType.Area});
-                    }
-                }
+                SpawnPointSelection(Tool.Tower);
 
                 var occupied = GetOccupied();
 
@@ -289,17 +287,7 @@
             }
 
             else if ((statuses.ContainsKey(Tool.Bulldozer) && statuses[Tool.Bulldozer])) {
-                foreach (ref readonly var message in ReadMessages<SpawnSelection>())
-                {
-                    if (message.Start.X >= 0 && message.Start.X < this.Map.MapWidth
-                            && message.Start.Y >= 0 && message.Start.Y < this.Map.MapHeight) {
-                        var entity = CreateEntity();
-
-                        AddComponent(entity, new AreaComponent { squares = new[] {message.Start},
-                                Tool = Tool.Bulldozer });
-                        AddComponent(entity, new SelectedComponent { selected = true, Type= SelectionType.Area});
-                    }
-                }
+                SpawnAreaSelection(Tool.Bulldozer);
 
                 foreach (ref readonly var message in ReadMessages<AdjustSelection>()) {
                     foreach (ref readonly var entity in ReadEntities<SelectedComponent>()) {