package de.ctdo.bunti.dmx;

public class DMX {

	public static final int DMX_CHANNELS_MAX = (byte) 511;
	public static final int DMX_CHANNELS_MIN = 0;
	public static final int DMX_CHANNEL_VALUE_MAX = (byte) 255;
	public static final int DMX_CHANNEL_VALUE_MIN = 0;
	
	/** 
	 * Offset by which startaddress differs from DMX512 Data Array location
	 */
	public static final int DMX_STARTADDRESS_OFFSET = -1;


    private DMX(){

    }

	/**
	 * Checks the DMX Value boundaries
	 * @param value
	 * @return A valid DMX512 channel value
	 */
	public static int sanitizeDMXValue(int value) {
		if(value < DMX_CHANNEL_VALUE_MIN) value = DMX_CHANNEL_VALUE_MIN;
		if(value > DMX_CHANNEL_VALUE_MAX) value = DMX_CHANNEL_VALUE_MAX;
		return value;
	}
	
	/**
	 * Checks the DMX Channel boundaries
	 * @param channel The channel to check
	 * @return True if channel is valid. Otherwise false.
	 */
	public static boolean checkChannelBoundaries(int channel) {
		return (channel >= DMX_CHANNELS_MIN && channel <= DMX_CHANNELS_MAX);
	}
	

	
}