package RCX4;

import josx.platform.rcx.SensorListener;
import josx.platform.rcx.Sensor;
import josx.robotics.*;

/**
 *A listener for the light sensor.
 */
public class LightListener implements SensorListener {
    
    public void stateChanged(Sensor aSource, int aOldValue, int aNewValue) {
	    int howFarFromWhite = Math.abs(aNewValue-Senses.white);
	    int howFarFromBlack = Math.abs(aNewValue-Senses.black);
	    
	    if (howFarFromWhite > howFarFromBlack){
		PrettyBoy.lightFlag = true;//if white
	    }else{
		PrettyBoy.lightFlag = false;//if black
	    }
    }//stateChanged
}//LightListener