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Snake.java
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Snake.java
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import java.awt.Color;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.Map.Entry;
import javax.imageio.ImageIO;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.Point;
public class Snake implements Drawable, Entity, KeyListener {
private int score = 0;
private int direction = 0;
private int appleX = (int) (25 * (Math.ceil(Math.abs((Math.random() * 450.0) / 25))));
private int appleY = (int) (25 * (Math.ceil(Math.abs((Math.random() * 450.0) / 25))));
private ArrayList<Integer> pastX = new ArrayList<Integer>(
Arrays.asList(((int) (25 * (Math.ceil(Math.abs((Math.random() * 200.0) / 25))))) + 125));
private ArrayList<Integer> pastY = new ArrayList<Integer>(
Arrays.asList(((int) (25 * (Math.ceil(Math.abs((Math.random() * 200.0) / 25))))) + 125));
private BufferedImage imgUp = null;
private BufferedImage imgRight = null;
private BufferedImage imgDown = null;
private BufferedImage imgLeft = null;
private BufferedImage imgApple = null;
private BufferedImage imgBody = null;
public Snake() {
try {
imgUp = ImageIO.read(getClass().getClassLoader().getResource("images/headUp.png"));
imgRight = ImageIO.read(getClass().getClassLoader().getResource("images/headRight.png"));
imgDown = ImageIO.read(getClass().getClassLoader().getResource("images/headDown.png"));
imgLeft = ImageIO.read(getClass().getClassLoader().getResource("images/headLeft.png"));
imgApple = ImageIO.read(getClass().getClassLoader().getResource("images/apple.png"));
imgBody = ImageIO.read(getClass().getClassLoader().getResource("images/body.png"));
} catch (IOException e) {
}
}
/**
* From interface Drawable
*/
public void draw(Graphics g) {
// Draw Body
for (int i = 0; i < pastX.size() - 1; i++) {
g.drawImage(imgBody, pastX.get(i), pastY.get(i), 25, 25, null);
}
// Draw Head
if (direction == 0) {
g.drawImage(imgUp, pastX.get(pastX.size() - 1), pastY.get(pastY.size() - 1), 25, 25, null);
} else if (direction == 1) {
g.drawImage(imgRight, pastX.get(pastX.size() - 1), pastY.get(pastY.size() - 1), 25, 25, null);
} else if (direction == 2) {
g.drawImage(imgDown, pastX.get(pastX.size() - 1), pastY.get(pastY.size() - 1), 25, 25, null);
} else if (direction == 3) {
g.drawImage(imgLeft, pastX.get(pastX.size() - 1), pastY.get(pastY.size() - 1), 25, 25, null);
}
// Draw Apple
g.drawImage(imgApple, appleX, appleY, 25, 25, null);
// Draw Score
g.drawString("Score: " + score, 380, 492);
}
/**
* From interface Entitiy
*/
public void tick() {
// If on apple
if (pastX.get(pastX.size() - 1) == appleX && pastY.get(pastY.size() - 1) == appleY) {
score++;
appleX = (int) (25 * (Math.ceil(Math.abs((Math.random() * 450.0) / 25))));
appleY = (int) (25 * (Math.ceil(Math.abs((Math.random() * 450.0) / 25))));
}
}
public void second() {
// Up
if (direction == 0) {
if (pastY.get(pastY.size() - 1) >= 50) {
if (pastX.size() > score && score != 0) {
pastX.remove(0);
pastY.remove(0);
}
if (score > 0) {
pastX.add(pastX.get(pastX.size() - 1));
pastY.add(pastY.get(pastY.size() - 1));
}
pastY.set(pastY.size() - 1, pastY.get(pastY.size() - 1) - 25);
} else {
System.out.println("Hit Top Wall!");
System.out.println("Cringe Score: " + score);
System.exit(0);
}
}
// Down
if (direction == 2) {
if (pastY.get(pastY.size() - 1) <= 425) {
if (pastX.size() > score && score != 0) {
pastX.remove(0);
pastY.remove(0);
}
if (score > 0) {
pastX.add(pastX.get(pastX.size() - 1));
pastY.add(pastY.get(pastY.size() - 1));
}
pastY.set(pastY.size() - 1, pastY.get(pastY.size() - 1) + 25);
} else {
System.out.println("Hit Bottom Wall!");
System.out.println("Cringe Score: " + score);
System.exit(0);
}
}
// Right
if (direction == 1) {
if (pastX.get(pastX.size() - 1) <= 425) {
if (pastX.size() > score && score != 0) {
pastX.remove(0);
pastY.remove(0);
}
if (score > 0) {
pastX.add(pastX.get(pastX.size() - 1));
pastY.add(pastY.get(pastY.size() - 1));
}
pastX.set(pastX.size() - 1, pastX.get(pastX.size() - 1) + 25);
} else {
System.out.println("Hit Right Wall!");
System.out.println("Cringe Score: " + score);
System.exit(0);
}
}
// Left
if (direction == 3) {
if (pastX.get(pastX.size() - 1) >= 50) {
if (pastX.size() > score && score != 0) {
pastX.remove(0);
pastY.remove(0);
}
if (score > 0) {
pastX.add(pastX.get(pastX.size() - 1));
pastY.add(pastY.get(pastY.size() - 1));
}
pastX.set(pastX.size() - 1, pastX.get(pastX.size() - 1) - 25);
} else {
System.out.println("Hit Left Wall!");
System.out.println("Cringe Score: " + score);
System.exit(0);
}
}
ArrayList<Point> points = new ArrayList<Point>();
for (int i = 0; i < pastX.size(); i++) {
points.add(new Point(pastX.get(i), pastY.get(i)));
}
if (hasDuplicate(points)) {
System.out.println("Self Collision!");
System.out.println("Cringe Score: " + score);
System.exit(0);
}
}
@Override
public void keyTyped(KeyEvent e) {
}
@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_RIGHT || e.getKeyCode() == KeyEvent.VK_D) {
if (direction != 3) {
direction = 1;
}
}
if (e.getKeyCode() == KeyEvent.VK_LEFT || e.getKeyCode() == KeyEvent.VK_A) {
if (direction != 1) {
direction = 3;
}
}
if (e.getKeyCode() == KeyEvent.VK_UP || e.getKeyCode() == KeyEvent.VK_W) {
if (direction != 2) {
direction = 0;
}
}
if (e.getKeyCode() == KeyEvent.VK_DOWN || e.getKeyCode() == KeyEvent.VK_S) {
if (direction != 0) {
direction = 2;
}
}
if (e.getKeyCode() == KeyEvent.VK_ESCAPE) {
System.out.println("User Requested End of Game.");
System.out.println("Cringe Score: " + score);
System.exit(0);
}
}
@Override
public void keyReleased(KeyEvent e) {
}
public static <T> boolean hasDuplicate(Iterable<T> all) {
Set<T> set = new HashSet<T>();
// Set#add returns false if the set does not change, which
// indicates that a duplicate element has been added.
for (T each : all)
if (!set.add(each))
return true;
return false;
}
}