import java.io.DataOutputStream;
import java.io.IOException;

public class SendThread extends Thread{
	
	public static final byte FORWARD = 0;
	public static final byte STOP = 1;
	public static final byte EXIT = 2;
	public static final byte LEFT = 3;
	public static final byte RIGHT = 4;
	public static final byte BACKWARD = 5;
	
	private int command;
	private int before;
	private boolean run;
	private DataOutputStream output;
	
	public SendThread(DataOutputStream out) {
		super();
		command = -1;
		before = command;
		run = true;
		output = out;
	}
	
	@Override
	public void run() {
		while (run) {
			if (before != command) {
				try {
					output.write(command);
				} catch (IOException e) { }
				before = command;
			}
			
			try {
				Thread.sleep(200);
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
	
	public void send (int c) {
		command = c;
	}
}