97 lines
2.5 KiB
Java
97 lines
2.5 KiB
Java
import java.lang.reflect.Field;
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import java.util.ArrayList;
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import java.util.List;
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import java.awt.event.KeyListener;
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import java.awt.event.KeyEvent;
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import javax.swing.JFrame;
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class Manager implements KeyListener
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{
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private final String USAGE =
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"------------------------------\n" +
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"Simple version of Flappy Bird\n" +
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"Press SPACE to jump!\n" +
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"------------------------------\n";
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private final Bird _bird;
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private final List<Drawable> _drawables;
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public Manager()
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{
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_drawables = new ArrayList<Drawable>();
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Turtle turtle = new Turtle();
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turtle.setzeGeschwindigkeit(10);
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JFrame fieldValue = new JFrame();
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// Modifying Turtle.java is forbidden so use reflection to get the JFrame and add
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// a KeyListener lol
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try
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{
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Field frameField = TurtleWelt.class.getDeclaredField("_frame");
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frameField.setAccessible(true);
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fieldValue = (JFrame) frameField.get(TurtleWelt.globaleWelt);
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fieldValue.addKeyListener(this);
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}
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catch (Exception ex)
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{
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System.out.println("Reflection hack failed");
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System.exit(-1);
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}
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System.out.print(USAGE);
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_bird = new Bird(this);
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Welt welt = new Welt(this);
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long lastNanos, elapsed;
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lastNanos = System.nanoTime();
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while (true)
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{
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elapsed = System.nanoTime() - lastNanos;
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lastNanos = System.nanoTime();
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_bird.update(elapsed * 1e-6d);
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welt.update(elapsed * 1e-6d);
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if (welt.checkCollision(_bird.getRect()))
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{
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welt.reset();
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}
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TurtleWelt.globaleWelt.bildschirmEinfaerben(255, 255, 255);
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for (var d : _drawables)
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{
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d.draw(turtle, elapsed * 1e-6d);
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}
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// Try to achieve approximately 60 FPS (1000ms / 60 FPS = 16.666ms)
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int missingMs = (int)(16 - (System.nanoTime() - lastNanos) * 1e-6d);
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if (missingMs > 0)
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{
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try
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{
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Thread.sleep(missingMs);
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} catch (Exception e) {}
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}
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}
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}
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public void addDrawable(Drawable d)
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{
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_drawables.add(d);
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}
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public void keyPressed(KeyEvent e)
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{
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if (e.getKeyChar() == ' ')
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{
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_bird.jump();
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}
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}
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public void keyReleased(KeyEvent e) {}
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public void keyTyped(KeyEvent e) {}
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}
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