Kollisionsabfrage Ball <-> Paddle

[JaVa]

Hi!

Ich bin jetzt schon weiter mit meinem Spielchen!
Aber wie kann ich die width und die height von meinem Paddle abfragen und in Variablen speicher???

Hier der Code

import java.awt.*;
import java.applet.*;

public class SampleThread extends Applet implements Runnable 
{
	Thread t;
    //int i;
    int x;
    int y;
    int ball_x;
    int ball_y;
    int x_vector = 1;
    int y_vector = 1;
    
    boolean play = true;
    
    Image PCpaddle;
    Image ball;
    
    Image dbImage;
    Graphics dbg;
    
 
	
	public void init()
	{
		t = new Thread(this);
		
		t.start();
		
		//i = 0;
		x = 0;
		y = 250;
		ball_x = 250;
		ball_y = 250;
		
		PCpaddle = getImage(getCodeBase(), "paddlePC.GIF");
		ball = getImage(getCodeBase(), "ball.GIF");
	}
	
	
	public void run()
	{
		while(true)
		{
			//i++;
	
			repaint();
			
			if(y > 410)
			{
				//y = y-1;
				y = 410;
			}
			
			if(y < 0)
			{
				//y = y+1;
				y = 0;
			}
			
			ball_x = ball_x + x_vector;
			ball_y = ball_y + y_vector;
			if(ball_x > 470)
			{
				x_vector = -3;
				y_vector = +3;
			}
			if(ball_x < 0)
			{
				x_vector = +1;
				y_vector = -1;
			}
			
			if(ball_y > 470)
			{
				y_vector = -1;
			}
			
			if(ball_y < 0)
			{
				y_vector = +1;
			}
			
			if(ball_x == widthPaddle)
			{
				x_vector = +3;
			}
			
			try
			{
				t.sleep(10);
			}	
			catch (InterruptedException e)
			{
			}	
		}
	}
	
	public void update (Graphics g)
    {
	  // init of Double Buffer
	  if (dbImage == null)
	  {
        dbImage = createImage (this.getSize().width, this.getSize().height);
		dbg = dbImage.getGraphics ();
	  }

	  // delete image in the background
	  dbg.setColor (getBackground ());
	  dbg.fillRect (0, 0, this.getSize().width, this.getSize().height);

	  // draw foreground on deleted background
	  dbg.setColor (getForeground());
	  paint (dbg);
	
	  // displays complete image on screen
	  g.drawImage (dbImage, 0, 0, this);
    }
	
	
	public void paint(Graphics g)
    {
      //g.drawString("i = "+i, 10, 20);
      
      g.drawImage(PCpaddle, x, y, this);
      g.drawImage(ball, ball_x, ball_y, this);
    }
    
    
    public boolean keyDown(Event e, int key)
    {
      if(key == 1005)
      {
      	y = y+4;
      }
      if(key == 1004)
      {
      	y = y-4;
      }
	  
      return true;
    }

}

Grüße Java

 

[Beni]

Image PCpaddle;

Guck mal in der API unter "Image" nach...

 

[bevyunceboobe]

Hello. Let's get acquainted!
My name is Jessika.