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/HeightMapTerrainNode.cpp

@@ -5,6 +5,7 @@
 HeightMapTerrainNode::HeightMapTerrainNode(wstring name, wstring heightMap, wstring seed, float waterHeight, int widthX, int widthZ, int cellSizeX, int cellSizeZ) : TerrainNode(name, seed, waterHeight, widthX, widthZ, cellSizeX, cellSizeZ)
 {
 	_heightMap = heightMap;
+	// Try to load the height map otherwise fail and set the error bool
 	if (!LoadHeightMap(_heightMap))
 	{
 		_initError = true;