package se.nicklasgavelin.sphero.command;

import java.awt.Color;
import se.nicklasgavelin.util.Value;

/**
 * Command to adjust the color displayed by the RGB LED on the Sphero.
 * 
 * @author Nicklas Gavelin, nicklas.gavelin@gmail.com, Luleå University of
 *         Technology
 */
public class RGBLEDCommand extends CommandMessage
{
	// Colors
	private byte red, green, blue;

	/**
	 * Create a RGBLEDCommand that sets the color values to the
	 * ones given.
	 * 
	 * @param red The new red value
	 * @param green The new green value
	 * @param blue The new blue value
	 */
	public RGBLEDCommand( int red, int green, int blue )
	{
		super( COMMAND_MESSAGE_TYPE.RGB_LED_OUTPUT );
		this.red = (byte) Value.clamp( red, 0, 255 );
		this.green = (byte) Value.clamp( green, 0, 255 );
		this.blue = (byte) Value.clamp( blue, 0, 255 );
	}

	/**
	 * Create a RGBLEDCommand from a awt.color instance
	 * 
	 * @param c The color
	 */
	public RGBLEDCommand( Color c )
	{
		this( c.getRed(), c.getGreen(), c.getBlue() );
	}

	/**
	 * Returns the red value
	 * 
	 * @return The red value
	 */
	public int getRed()
	{
		return this.red;
	}

	/**
	 * Returns the green value
	 * 
	 * @return The green value
	 */
	public int getGreen()
	{
		return this.green;
	}

	/**
	 * Returns the blue value
	 * 
	 * @return The blue value
	 */
	public int getBlue()
	{
		return this.blue;
	}

	@Override
	protected byte[] getPacketData()
	{
		byte[] data = new byte[ 3 ];
		data[0] = this.red;
		data[1] = this.green;
		data[2] = this.blue;

		return data;
	}
}