public static void main(String[] args) {
TouchSensor penSensor = new TouchSensor(SensorPort.S4);
Pen p = new Pen(penSensor);
p.lower(); while (Button.LEFT.isPressed() == false) {}
p.raise();
}
}
DrawLine (page 58)
import lejos.nxt.*;
public class DrawLine { public static void main(String[] args) {
TouchSensor penSensor = new TouchSensor(SensorPort.S4);
Pen p = new Pen(penSensor);
p.lower(); /* 1: Start robot driving forward */
/* 2: Wait until the robo has driven for 10cm */
p.raise();
}
}
LineDrawer (page 59)
import lejos.nxt.*;
public class LineDrawer implements Action { private Pen p; private RotationDelay delay;
public LineDrawer(TouchSensor penSensor, int counts) {
p = new Pen(penSensor);
delay = new RotationDelay(Motor.B, counts);
}
public void act() { /* Your code here */
}
public static void main(String[] args) {
TouchSensor penSensor = new TouchSensor(SensorPort.S4);
Action drawer = new LineDrawer(penSensor, /* 10 cm counts */)
drawer.act();
}
}
DrawL (page 60)
import lejos.nxt.*;
public class DrawL { public static void main(String[] args) {
TouchSensor ts = new TouchSensor(SensorPort.S4);
Pen pen = new Pen(ts);
LineDrawer longPart = new LineDrawer(pen, 300);
LineDrawer shortPart = new LineDrawer(pen, 150);
SpinLeftMove spinner = new SpinLeftMove();