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Thread: Game moving keys

  1. #1
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    Default Game moving keys

    I want to write simple game. Why if I press button UP and RIGHT it not move diogonally, may be it have special code. And how I need to write correctly border and gravity? (Sorry for my English, it is not my home language).

    public class Main {
     
    	public static void main(String args[]) {
    		JFrame frame = new JFrame("Stickman");
    		Ground ground = new Ground();
    		frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
    		frame.setSize(710, 480);
    		frame.add(ground);
    		frame.setVisible(true);
    		ground.requestFocus();
     
    	}
     
     
     
    }

    public class Ground extends JPanel {
    	public Ground() {
     
    		addKeyListener(new myKeyAdapter());
     
    	}
     
    	Image img = new ImageIcon("Resourse/Untitled.jpg").getImage();
    	Stickman stk = new Stickman();
     
    	private class myKeyAdapter extends KeyAdapter {
    		public void keyPressed(KeyEvent e) {
     
    			stk.keyPressed(e);
    			repaint();
    		}
     
    		public void keyReleased(KeyEvent e) {
     
    			stk.keyReleased(e);
    			repaint();
    		}
     
    	}
     
    	public void paint(Graphics g) {
     
    		g = (Graphics2D) g;
    		g.drawImage(img, stk.sloi1, 0, null);
    		g.drawImage(stk.img, stk.x, stk.y, null);
     
     
     
    	}
    }

    public class Stickman {
     
    	public static final int MAX_TOP = (4);
    	public static final int MAX_BOTTOM = (120);
     
    	Image img = new ImageIcon("Resourse/Untitled2.png").getImage();
     
    	int x = 5;
    	int y = 143;
    	int moveAmount = 5;
    	int sloi1 = 0;
     
    	public void move() {
    		if (y <= MAX_TOP)y = MAX_TOP;
    		if(y >= MAX_BOTTOM)y = MAX_BOTTOM;
     
    	}
     
    	public void keyPressed(KeyEvent e) {
    		int key = e.getKeyCode();
     
    		if (key == KeyEvent.VK_RIGHT) {
    			x += moveAmount;
     
     
    		}
     
    		if (key == KeyEvent.VK_LEFT) {
     
    			x -= moveAmount;
     
    		}
     
    		if (key == KeyEvent.VK_UP) {
     
    			y -= 20;
    		}
     
    	}
     
     
    	public void keyReleased(KeyEvent e) {
    	}
     
    }


  2. #2
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    Default Re: Game moving keys

    Override paintComponent() rather than paint() in a JPanel. For more information, refer to the Oracle Trail on custom painting.

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