Explicit function when starting and ending map generation as it happens over multiple frames.

scenes/TileWorld.cs

@@ -69,6 +69,8 @@ public class TileWorld : Spatial
         
         GenerateNoiseMap();
 //        GenerateDebugMap();
+
+        OnHeightMapChanged();
     }
 
     private void GenerateDebugMap()
@@ -92,11 +94,9 @@ public class TileWorld : Spatial
         }
         
         Colormap.SetPixel(Size - 1, Size -1, new Color(1, 1, 1, 1));
-
         Colormap.Unlock();
-        _currentGenerationState = GenerationState.Done;;
         
-        EmitSignal("WorldGenerated");
+        OnMapGenerationComplete();
     }
 
     
@@ -119,9 +119,20 @@ public class TileWorld : Spatial
         _heightmapOffscreenTextureRect.Texture = heightmapTexture;
         Heightmap.CopyFrom(_heightmapOffscreenViewport.GetTexture().GetData());
         
+        OnHeightMapChanged();
+    }
+
+
+    private void OnHeightMapChanged()
+    {
         _currentGenerationState = GenerationState.Heightmap;
     }
 
+    private void OnMapGenerationComplete()
+    {
+        _currentGenerationState = GenerationState.Done;
+        EmitSignal("WorldGenerated");
+    }
 
     public override void _Process(float delta)
     {
@@ -142,7 +153,7 @@ public class TileWorld : Spatial
 
             _currentGenerationState = GenerationState.Done;
 
-            EmitSignal("WorldGenerated");
+            OnMapGenerationComplete();
         }
     }