Flipped UI, minor changes

Flipped UI, removed extra Batch2D, added comments and minor changes

src/graphics/Font.h

@@ -12,6 +12,7 @@ public:
 	Font(Texture* texture);
 	~Font();
 
+	int getGlyphWidth(char c);
 	void draw(Batch2D* batch, std::string text, int x, int y);
 };