moved generation of GLMapState

GLMapState now get generated inside the renderer and takes the
map-data as argument

GLMapState got extended by (up to now) uninitialized and unused textures.

src/Types.hs

@@ -74,6 +74,26 @@ data KeyboardState = KeyboardState
     { _arrowsPressed        :: !ArrowKeyState
     }
 
+-- | State in which all map-related Data is stored
+--
+--   The map itself is rendered with mapProgram and the shaders given here directly
+--   This does not include any objects on the map - only the map itself
+--
+--   _mapTextures must contain the following Textures (in this ordering) after initialisation:
+--
+--     1. Grass
+--
+--     2. Sand
+--
+--     3. Water
+--
+--     4. Stone
+--
+--     5. Snow
+--
+--     6. Dirt (blended on grass)
+
+
 data GLMapState = GLMapState
     { _shdrVertexIndex      :: !GL.AttribLocation
     , _shdrColorIndex       :: !GL.AttribLocation
@@ -88,8 +108,9 @@ data GLMapState = GLMapState
     , _stateMap             :: !GL.BufferObject
     , _mapVert              :: !GL.NumArrayIndices
     , _mapProgram           :: !GL.Program
-    , _mapTexture           :: !TextureObject
+    , _renderedMapTexture   :: !TextureObject --TODO: Probably move to UI?
     , _overviewTexture      :: !TextureObject
+    , _mapTextures          :: ![TextureObject] --TODO: Fix size on list?
     }
 
 data GLHud = GLHud