COLOUR SENSOR CODE:

import lejos.nxt.*;
import lejos.robotics.*;

public class colourSensor {

	public Color getColour() {

		ColorSensor RGBsensor = new ColorSensor(SensorPort.S1); //PORT DEFAULTED TO S1, NEED TO FIND A WAY TO PASS AS A PARAMETER IF POSSIBLE
		Color DetectedColour = RGBsensor.getColor(); //MAY NEED TO CHANGE TO GET COLORID
		return DetectedColour; //Returns detected colour as data type Colour


	}

}
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import lejos.nxt.*;
import lejos.robotics.*;


public class test {

	public static void main(String[] args) {

		//mainRobot robot = new mainRobot();

		//Clear previous movement and move forward
		LCD.drawString("program 1", 0, 0);
		Button.waitForAnyPress();
		LCD.clear();
		Motor.A.forward();
		LCD.drawString("forward", 0, 0);

		//Move backwards
		Button.waitForAnyPress();
		LCD.drawString("backward", 0, 0);
		Motor.A.backward();

		//Stop the motor.
		Button.waitForAnyPress();
		Motor.A.stop();
		Color x = colourSensor.getColour();
		System.out.println();


		int counter = 0;


		level1Rob robot = new level1Rob();
		for(;;) {
			//If colour sensor does not find the coloured line display the message.
			if(robot.colourSensor(1) == false ) {
				System.out.println("no light found");

				Motor.A.forward(true);
				Motor.D.forward(true);


			}
			//If colour sensor does find the coloured line display the message.
			if(robot.ColourSensor(1) == true) {
				System.out.Println("Light source found");
			}
			//While the colour sensor has not found the coloured line, keep moving forward.
			while(robot.ColourSensor(1) == true ) {
				Motor.A.forward();
			}
			//Once the colour sensor has found the light, stop moving
			while(robot.ColourSensor(1) == false ) {
				Motor.A.stop();
			}
		}

	}

}