public void clearDisplay() {
		//TODO: Don't set BLOCKED tiles to NORMAL_TILE colour. Waiting to fix this on a decision on barriers.
		//That, or make barriers display a graphic rather than a background.
		for (Tile tile : validTargetPaths.keySet()) {
			tile.setBackground(PropertiesLoader.getColour("normal_tile"));
		}
		
		for (Tile tile : invalidTargets) {
			tile.setBackground(PropertiesLoader.getColour("normal_tile"));
		}
		
		for (Tile tile : blockingTiles) {
			tile.setBackground(PropertiesLoader.getColour("normal_tile"));
		}
	}