Snake/Java
< Snake
package zug;
import javax.swing.*; import java.awt.*; import java.awt.event.KeyAdapter; import java.awt.event.KeyEvent; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.util.ArrayList; import java.util.LinkedList; import java.util.List; import java.util.Random;
import static java.lang.String.format;
public class zug extends JPanel implements Runnable {
enum Dir {
up(0, -1), right(1, 0), down(0, 1), left(-1, 0);
Dir(int x, int y) {
this.x = x; this.y = y;
}
final int x, y;
}
static final Random rand = new Random();
static final int WAND = -1;
volatile boolean gameOver = true;
Thread gameThread;
int score, highScore;
int nRows = 108;
int nCols = 192;
Dir dir;
int[][] wand;
List<Point> zug, passagiere;
Font smallFont;
public zug() {
setPreferredSize(new Dimension(1920, 1080));
setBackground(Color.darkGray);
setFont(new Font("Arial", Font.BOLD, 48));
setFocusable(true);
smallFont = getFont().deriveFont(Font.BOLD, 18);
mauerErzeugen();
addMouseListener(
new MouseAdapter() {
@Override
public void mousePressed(MouseEvent e) {
if (gameOver) {
starteNeuesSpiel();
repaint();
}
}
});
addKeyListener(
new KeyAdapter() {
@Override
public void keyPressed(KeyEvent e) {
switch (e.getKeyCode()) {
case KeyEvent.VK_UP:
if (dir != Dir.down)
dir = Dir.up;
break;
case KeyEvent.VK_LEFT:
if (dir != Dir.right)
dir = Dir.left;
break;
case KeyEvent.VK_RIGHT:
if (dir != Dir.left)
dir = Dir.right;
break;
case KeyEvent.VK_DOWN:
if (dir != Dir.up)
dir = Dir.down;
break;
}
repaint();
}
});
}
public static void zeigeFenster(String text) {
JFrame fenster = new JFrame("Deutsche Bahn");
JLabel label = new JLabel(text);
fenster.getContentPane().add(label);
fenster.setSize(600, 200);
fenster.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
fenster.setVisible(true);
}
void starteNeuesSpiel() {
gameOver = false;
stop();
mauerErzeugen();
passagiere = new LinkedList<>();
dir = Dir.left;
if (score > highScore)
highScore = score;
score = 0;
zug = new ArrayList<>();
for (int x = 0; x < 7; x++)
zug.add(new Point(nCols / 2 + x, nRows / 2));
do
addPassagiere();
while(passagiere.isEmpty());
(gameThread = new Thread(this)).start();
}
void stop() {
if (gameThread != null) {
Thread tmp = gameThread;
gameThread = null;
tmp.interrupt();
}
}
void mauerErzeugen() {
wand = new int[nRows][nCols];
for (int r = 0; r < nRows; r++) {
for (int c = 0; c < nCols; c++) {
if (c == 0 || c == nCols - 1 || r == 0 || r == nRows - 1)
wand[r][c] = WAND;
}
}
}
@Override
public void run() {
while (Thread.currentThread() == gameThread) {
try {
Thread.sleep(Math.max(75 - score, 25));
} catch (InterruptedException e) {
return;
}
if (trifftWand() || trifftZug() || score == 15) {
gameOver();
} else {
if (sammeltPassagiereEin()) {
score++;
verlängereZug();
}
bewegeZug();
addPassagiere();
}
repaint();
}
}
boolean trifftWand() {
Point head = zug.get(0);
int nextCol = head.x + dir.x;
int nextRow = head.y + dir.y;
return wand [nextRow][nextCol] == WAND;
}
boolean trifftZug() {
Point head = zug.get(0);
int nextCol = head.x + dir.x;
int nextRow = head.y + dir.y;
for (Point p : zug)
if (p.x == nextCol && p.y == nextRow)
return true;
return false;
}
boolean sammeltPassagiereEin() {
Point head = zug.get(0);
int nextCol = head.x + dir.x;
int nextRow = head.y + dir.y;
for (Point p : passagiere)
if (p.x == nextCol && p.y == nextRow) {
return passagiere.remove(p);
}
return false;
}
void gameOver() {
gameOver = true;
zeigeFenster("Gut gemacht ! Der Code für die Bombe ist dein Score: "+score+ " " + "Suche nun nach 2 weiteren NFC Tags !");
stop();
}
void bewegeZug() {
for (int i = zug.size() - 1; i > 0; i--) {
Point p1 = zug.get(i - 1);
Point p2 = zug.get(i);
p2.x = p1.x;
p2.y = p1.y;
}
Point head = zug.get(0);
head.x += dir.x;
head.y += dir.y;
}
void verlängereZug() {
Point tail = zug.get(zug.size() - 1);
int x = tail.x + dir.x;
int y = tail.y + dir.y;
zug.add(new Point(x, y));
}
void addPassagiere() {
if (passagiere.size() < 10) {
if (rand.nextInt(10) == 0) { // 1 in 10
if (rand.nextInt(4) != 0) { // 3 in 4
int x, y;
while (true) {
x = rand.nextInt(nCols);
y = rand.nextInt(nRows);
if (wand[y][x] != 0)
continue;
Point p = new Point(x, y);
if (zug.contains(p) || passagiere.contains(p))
continue;
passagiere.add(p);
break;
}
} else if (passagiere.size() > 1)
passagiere.remove(0);
}
}
}
void zeichneWand(Graphics2D g) {
g.setColor(Color.black);
for (int r = 0; r < nRows; r++) {
for (int c = 0; c < nCols; c++) {
if (wand[r][c] == WAND)
g.fillRect(c * 10, r * 10, 10, 10);
}
}
}
void zeichneZug(Graphics2D g) {
g.setColor(Color.red);
for (Point p : zug)
g.fillRect(p.x * 10, p.y * 10, 10, 10);
Point head = zug.get(0);
g.fillRect(head.x * 10, head.y * 10, 10, 10);
}
void zeichnePassagiere(Graphics2D g) {
g.setColor(Color.pink);
for (Point p : passagiere)
g.fillRect(p.x * 10, p.y * 10, 10, 10);
}
void zeichneStartbildschirm(Graphics2D g) {
g.setColor(Color.white);
g.setFont(getFont());
g.drawString("Sammle die Passagiere ein",650, 250);
g.setColor(Color.white);
g.setFont(smallFont);
g.drawString("Beliebige Maustaste zum Starten drücken", 780, 300);
}
void zeichnePunktestand(Graphics2D g) {
int h = getHeight();
g.setFont(smallFont);
g.setColor(Color.white);
String s = format("HighScore: %d Score: %d", highScore, score);
g.drawString(s, 30, h - 30);
}
public void paintComponent(Graphics gg) {
super.paintComponent(gg);
Graphics2D g = (Graphics2D) gg;
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
zeichneWand(g);
if (gameOver) {
zeichneStartbildschirm(g);
} else {
zeichneZug(g);
zeichnePassagiere(g);
zeichnePunktestand(g);
}
}
}
public static void main(String[] args) {
SwingUtilities.invokeLater(
() -> {
JFrame mainFrame = new JFrame();
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mainFrame.setTitle("Deutsche Bahn");
mainFrame.setResizable(true);
mainFrame.add(new zug(), BorderLayout.CENTER);
mainFrame.pack();
mainFrame.setLocationRelativeTo(null);
mainFrame.setVisible(true);
});
}
}