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Display.java
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package Lab5;
import lejos.hardware.Button;
import lejos.hardware.Sound;
import lejos.hardware.lcd.LCD;
import lejos.hardware.port.SensorPort;
import lejos.hardware.sensor.EV3ColorSensor;
import lejos.hardware.sensor.SensorMode;
import lejos.robotics.Color;
import lejos.utility.Delay;
public class Display {
private int colorDetector;
int directionDetector;
private EV3ColorSensor colorSensor = new EV3ColorSensor(SensorPort.S1);
private SensorMode colorID = colorSensor.getColorIDMode();
private float colorIDSample[] = new float[colorID.sampleSize()];
public void beep() {
Sound.setVolume(80);
Sound.playTone(200, 1000);
}
public void Menu() {
int cursor_location_row = 1;
final int red_location_row = 2;
final int blue_location_row = 1;
final int green_location_row = 3;
final int yellow_location_row = 4;
final int Cursor_location_colmn = 0;
final int red_location_colmn = 1;
final int blue_location_colmn = 1;
final int green_location_colmn = 1;
final int yellow_location_colmn = 1;
final int delay = 300;
String r = "Red";
String b = "Blue";
String g = "Green";
String cursor = ">";
String nul = " ";
String y = "Yellow";
LCD.drawString(r, red_location_colmn, red_location_row);
LCD.drawString(b, blue_location_colmn, blue_location_row);
LCD.drawString(g, green_location_colmn, green_location_row);
LCD.drawString(y, yellow_location_colmn, yellow_location_row);
LCD.drawString(cursor, Cursor_location_colmn, cursor_location_row);
while (true) {
if (Button.ENTER.isDown() && cursor_location_row == 2) {
//beep();
colorDetector = Color.RED;
break;
}
if (Button.ENTER.isDown() && cursor_location_row == 1) {
//beep();
colorDetector = Color.BLUE;
break;
}
if (Button.ENTER.isDown() && cursor_location_row == 3) {
//beep();
colorDetector = Color.GREEN;
break;
}
if (Button.ENTER.isDown() && cursor_location_row == 4) {
//beep();
colorDetector = Color.YELLOW;
break;
}
if (Button.DOWN.isDown() && cursor_location_row < 4) {
LCD.drawString(nul, Cursor_location_colmn, cursor_location_row);
cursor_location_row = cursor_location_row + 1;
LCD.drawString(cursor, Cursor_location_colmn,
cursor_location_row);
}
if (Button.UP.isDown() && cursor_location_row > 1) {
LCD.drawString(nul, Cursor_location_colmn, cursor_location_row);
cursor_location_row = cursor_location_row - 1;
LCD.drawString(cursor, Cursor_location_colmn,
cursor_location_row);
}
Delay.msDelay(delay);
}
LCD.clearDisplay();
}
public boolean isColorDetected() {
Delay.msDelay(2500);
for(int i=0; i<200; i++){
colorID.fetchSample(colorIDSample, 0);
}
Delay.msDelay(250);
if ((int) colorIDSample[0] == colorDetector) {
beep();
return true;
} else {
return false;
}
}
public void Menu2(){
int cursor_location_row = 1;
final int left_location_row = 2;
final int right_location_row = 1;
final int Cursor_location_colmn = 0;
final int right_location_colmn = 1;
final int left_location_colmn = 1;
final int delay = 300;
String l = "Left";
String r = "Right";
String cursor = ">";
String nul = " ";
LCD.drawString(l, left_location_colmn, left_location_row);
LCD.drawString(r, right_location_colmn, right_location_row);
LCD.drawString(cursor, Cursor_location_colmn, cursor_location_row);
Delay.msDelay(delay);
while (true) {
if (Button.ENTER.isDown() && cursor_location_row == 2) {
beep();
directionDetector = 2;
break;
}
if (Button.ENTER.isDown() && cursor_location_row == 1) {
beep();
directionDetector = 1;
break;
}
if (Button.DOWN.isDown() && cursor_location_row < 2) {
LCD.drawString(nul, Cursor_location_colmn, cursor_location_row);
cursor_location_row = cursor_location_row + 1;
LCD.drawString(cursor, Cursor_location_colmn,
cursor_location_row);
}
if (Button.UP.isDown() && cursor_location_row > 1) {
LCD.drawString(nul, Cursor_location_colmn, cursor_location_row);
cursor_location_row = cursor_location_row - 1;
LCD.drawString(cursor, Cursor_location_colmn,
cursor_location_row);
}
Delay.msDelay(delay);
}
LCD.clearDisplay();
}
}