Set openGL colour with a integer instead of floats/doubles.

ColourUtil.java

public static float[] hexToFloat(int colourToConvert) {
	float red = (float) (colourToConvert >> 16 & 255) / 255.0F;
	float green = (float) (colourToConvert >> 8 & 255) / 255.0F;
	float blue = (float) (colourToConvert & 255) / 255.0F;
	return new float[] {red, green, blue};
}
	
public static void glColorInt(int hexColour) {
	float[] rgbValues = hexToFloat(hexColour);
	GL11.glColor3f(rgbValues[0], rgbValues[1], rgbValues[2]);
}

// 	example ColourUtil.glColorInt(0xff8080ff);