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); }); }
}