public int[] getLightMinusShadowAt(int x, int y, Color shadowColor)
			{
				int[] lightCols = { 0, 0, 0 };

				if (x > 0 && x < width && y > 0 && y < height)
					{
						lightCols[RED] = lightData[x][y][RED] + shadowColor.getRed();
						lightCols[GREEN] = lightData[x][y][GREEN] + shadowColor.getGreen();
						lightCols[BLUE] = lightData[x][y][BLUE] + shadowColor.getBlue();
					}

				return lightCols;
			}