Added Comments

Added ability to hold shift and skip the terrain generation when loading
Added ability for the perlin terrain to save a raw image of the terrain to use as a cache

Graphics2/TerrainNode.h

@@ -12,6 +12,7 @@
 #include "MeshNode.h"
 #include "SplitMeshNode.h"
 
+// Struct for holding the terrain vertex data
 typedef struct TerrainVertex
 {
 	XMFLOAT3 Position;
@@ -20,6 +21,8 @@ typedef struct TerrainVertex
 	XMFLOAT2 BlendMapTexCoord;
 } TerrainVertex;
 
+// Custom CBuffer for the terrain that can hold the water values, THE BYTE TOTAL FOR THIS MUST HAVE A FACTOR OF 16!!
+// a float is 4 bytes, so we techically dont need to pad with the array at the bottom but i left it in to remind myself
 struct TCBUFFER
 {
 	XMMATRIX    completeTransformation;
@@ -38,6 +41,7 @@ struct TCBUFFER
 	float padding[4];
 };
 
+// Class for processing the data of a terrain, one of the child classes should be passing the values to here to process as this class does not generate any actual values.
 class TerrainNode : public SceneNode
 {
 public:
@@ -51,13 +55,16 @@ public:
 	void Render(void);
 	void virtual Shutdown(void);
 
+	// Method for randomly placing models onto the terrain with the given commands
 	void PopulateTerrain(SceneGraphPointer currentSceneGraph, vector<TerrainPopNode>& nodesForPop, int xStep, int zStep, float heightLower, float heightUpper, float slopeLower, float slopeUpper);
 
+	// Methods for checking if you are in the bounds
 	float GetHeightAtPoint(float x, float z, bool waterCollide = false);
 	bool CheckXBoundary(float x);
 	bool CheckZBoundary(float z);
 
 protected:
+	// Bool so we can set this if the children have an error processing the data and we wont run
 	bool _initError = false;
 
 	int _widthX;
@@ -80,6 +87,7 @@ protected:
 	float _terrainEndX;
 	float _terrainEndZ;
 		
+	// Vars for dealing with the random number seed
 	wstring _seedString;
 	unsigned int _seedHash;
 
@@ -111,7 +119,9 @@ protected:
 	ComPtr<ID3D11RasterizerState>    _defaultRasteriserState;
 	ComPtr<ID3D11RasterizerState>    _wireframeRasteriserState;
 
+	// Pointer for the snow texture since i could not load it with the other textures, i think its because of mixed formats
 	ComPtr<ID3D11ShaderResourceView> _snowTest;
+
 	ComPtr<ID3D11ShaderResourceView> _waterNormalMap;
 	XMFLOAT4 _waterColor;
 
@@ -126,9 +136,13 @@ protected:
 	void LoadTerrainTextures();
 	void GenerateBlendMap();
 
+	// Method to get a height value at the given index
 	float GetHeightValueAt(int index);
 
+	// Method for adding the normals to each vertex, easier to manage this way
 	void AddNormalToVertex(int row, int col, int vertexIndex, XMVECTOR normal);
+	
+	// Method for loading the extra image maps we had, but now just for the water normals
 	void BuildExtraMaps();
 };