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Java Game APIs & Engines / Java 2D / Re: Make a train turn?
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on: 2003-04-14 10:20:59
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How is the rotation done? When I try like this:
public void roter()
{
g2.rotate(-1.0, x, y);
g2.fill3DRect(x,y,60,20,true);
g2.rotate(1.0, -x, -y);
}
The turning is done ones, then the train returns to start position again?
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Java Game APIs & Engines / Java 2D / Make a train turn?
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on: 2003-04-13 11:54:29
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Am creating a train simulation, but am having problems with how to turn the train? The turning has to be done while the train is moving. The train: 1
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| class Tog extends JPanel
{
Graphics2D g2;
Rectangle bounds;
int x;
int y;
int x2;
int y2;
int antalVogne;
AffineTransform r;
Tog(int x,int y,int antalVogne)
{
this.x=x;
this.y=y;
x2=x;
y2=y;
this.antalVogne=antalVogne;
r = new AffineTransform();
}
public void update( Graphics g)
{
paint(g);
}
public void paint(Graphics g)
{
g2 = (Graphics2D) g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
bounds = getBounds();
g2.clearRect(0,0,(int)bounds.getWidth(),(int)bounds.getHeight());
g2.setColor(Color.yellow);
g2.fill3DRect(x,y,60,20,true);
if(antalVogne>0)
{
x2+=20;
for(int i=0;i<antalVogne;i++)
{
x2+=50;
g2.setColor(Color.red);
g2.fill3DRect(x2,y2,40,20,true);
g2.drawLine(x2-10,y2+10,x2,y2+10);
}
}
}
public void opdater(int x, int y)
{
this.x=x;
this.y=y;
x2=x;
y2=y;
}
public void roter()
{
}
} |
The class where thread is created: 1
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| ......
t = new Tog(x,y,2);
......
public void run()
{
while(true)
{
repaint();
if(x>=600)
{
x-=1;
}
else if(x<600 && x>500)
{
t.roter(); x-=1;
y+=1;
}
else if(x<=500 && x>=400)
{
x-=1;
}
t.opdater(x,y);
try{
Thread.sleep(50);
}catch(InterruptedException a){}
}
} |
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7
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Java Game APIs & Engines / Java 2D / Game is not running smoot?
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on: 2002-12-15 08:29:32
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Am creating this game and somehow the game is not running smooth. Can anyone help me with this plz..... 1
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| import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Fighter extends JApplet implements Runnable,KeyListener
{
Thread runner;
Image buffer;
Graphics gf;
int x=400;
int y=400;
int skudXStart1=0;
int skudYStart1=0;
int skudXSlut1=0;
int skudYSlut1=0;
int skudXStart2=0;
int skudYStart2=0;
int skudXSlut2=0;
int skudYSlut2=0;
boolean right,left,space;
public void init()
{
addKeyListener(this);
setSize(800,600);
}
public void start()
{
if (runner == null)
{
runner = new Thread(this);
runner.start();
}
}
public void stop()
{
if(runner != null)
{
runner = null;
}
}
public void run()
{
while(gf==null)
{
try {
Thread.currentThread().sleep(50);
} catch(InterruptedException e){}
}
while(Thread.currentThread()==runner)
{
repaint();
gf.setColor(Color.white);
gf.fillRect(0, 0, 800, 600);
gf.drawImage((new ImageIcon("raptorSmall.gif")).getImage(),x,y,this);
gf.setColor(Color.red);
gf.drawLine(skudXStart1,skudYStart1,skudXSlut1,skudYSlut1);
gf.drawLine(skudXStart2,skudYStart2,skudXSlut2,skudYSlut2);
if (space)
{
skudYStart1-=50;
skudYSlut1-=50;
skudYStart2-=50;
skudYSlut2-=50;
if (skudYStart1 <= 0)
{
space = false;
}
}
if (left)
{
x -= 10;
}
if (right)
{
x += 10;
}
try {
Thread.currentThread().sleep(50);
} catch(InterruptedException e) {}
}
}
public void paint(Graphics g)
{
update(g);
}
public void update(Graphics g)
{
if (gf == null)
{
buffer = createImage(800, 600);
gf = buffer.getGraphics();
}
g.drawImage(buffer, 0, 0, this);
}
public void keyPressed(KeyEvent e)
{
if(e.getKeyCode() == KeyEvent.VK_ESCAPE )
{
System.exit(0);
}
if(e.getKeyCode() == KeyEvent.VK_LEFT)
{
left=true;
}
if(e.getKeyCode() == KeyEvent.VK_RIGHT)
{
right=true;
}
if(e.getKeyCode() == KeyEvent.VK_SPACE)
{
if (skudYStart1 <= 0)
{
skudXStart1=x+20;
skudYStart1=y+30;
skudXSlut1=x+20;
skudYSlut1=450;
skudXStart2=x+78;
skudYStart2=y+30;
skudXSlut2=x+78;
skudYSlut2=450;
}
space=true;
}
}
public void keyReleased(KeyEvent e)
{
if(e.getKeyCode() == KeyEvent.VK_LEFT)
{
left=false;
}
if(e.getKeyCode() == KeyEvent.VK_RIGHT)
{
right=false;
}
if(e.getKeyCode() == KeyEvent.VK_SPACE)
{
}
}
public void keyTyped(KeyEvent e){}
} |
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9
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Java Game APIs & Engines / Java 2D / Re: My game is flickering like hell ??
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on: 2002-12-04 15:37:46
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Now I have this question... I want a enemy spaceship to fly against the spaceship efter some delay, how do I do this? The way the code is now the enemy spaceship does this without any delay... 1
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| import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.image.*;
class Raptor extends JFrame implements KeyListener
{
Graphics2D g;
Timer loop;
int x=400;
int y=400;
int skudXStart1=0;
int skudYStart1=0;
int skudXSlut1=0;
int skudYSlut1=0;
int skudXStart2=0;
int skudYStart2=0;
int skudXSlut2=0;
int skudYSlut2=0;
boolean right,left,space;
Image raptorImage = null;
Image enemy1 = null;
int enemy1x = 500;
int enemy1y = -50;
BufferStrategy bs = null;
Rectangle bounds = null;
Raptor()
{
addKeyListener(this);
setBounds(100,50,800,600);
bounds = getBounds();
setVisible(true);
}
private void render(Graphics g1)
{
g = (Graphics2D) g1;
g.clearRect(0,0,(int)bounds.getWidth(),(int)bounds.getHeight());
if(raptorImage == null)
{
Image tempImage = new ImageIcon("raptorSmall.gif").getImage();
raptorImage = createImage(tempImage.getWidth(null), tempImage.getHeight(null));
Graphics g = raptorImage.getGraphics();
g.drawImage(tempImage,0,0,null);
g.dispose();
}
g.drawImage(raptorImage,x,y,this);
g.setColor(Color.red);
g.drawLine(skudXStart1,skudYStart1,skudXSlut1,skudYSlut1);
g.drawLine(skudXStart2,skudYStart2,skudXSlut2,skudYSlut2);
if (space)
{
skudYStart1-=5;
skudYSlut1-=5;
skudYStart2-=5;
skudYSlut2-=5;
if (skudYStart1 <= 0)
{
space = false;
}
}
if (left)
{
x -= 1;
}
if (right)
{
x += 1;
}
if(enemy1 == null)
{
Image tempImage2 = new ImageIcon("Enemy1.gif").getImage();
enemy1 = createImage(tempImage2.getWidth(null), tempImage2.getHeight(null));
Graphics g = enemy1.getGraphics();
g.drawImage(tempImage2,0,0,null);
g.dispose();
}
g.drawImage(enemy1,enemy1x,enemy1y,this);
enemy1x-=1;
enemy1y+=1;
}
public void run()
{
while(true)
{
if (bs == null)
{
createBufferStrategy(2);
bs = getBufferStrategy();
}
Graphics g = bs.getDrawGraphics();
render(g);
bs.show();
g.dispose();
}
}
public void paint(Graphics g1)
{
super.paint(g1);
render(g1);
}
public void keyPressed(KeyEvent e)
{
if(e.getKeyCode() == KeyEvent.VK_ESCAPE )
{
System.exit(0);
}
if(e.getKeyCode() == KeyEvent.VK_LEFT)
{
left=true;
}
if(e.getKeyCode() == KeyEvent.VK_RIGHT)
{
right=true;
}
if(e.getKeyCode() == KeyEvent.VK_SPACE)
{
if (skudYStart1 <= 0)
{
skudXStart1=x+20;
skudYStart1=y+30;
skudXSlut1=x+20;
skudYSlut1=450;
skudXStart2=x+78;
skudYStart2=y+30;
skudXSlut2=x+78;
skudYSlut2=450;
}
space=true;
}
}
public void keyReleased(KeyEvent e)
{
if(e.getKeyCode() == KeyEvent.VK_LEFT)
{
left=false;
}
if(e.getKeyCode() == KeyEvent.VK_RIGHT)
{
right=false;
}
if(e.getKeyCode() == KeyEvent.VK_SPACE)
{
}
}
public void keyTyped(KeyEvent e){}
public static void main(String[] aslan)
{
new Raptor().run();
}
} |
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11
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Java Game APIs & Engines / Java 2D / My game is flickering like hell ??
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on: 2002-12-03 18:50:16
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Am creating a 2D spaceship shooter but am having this problem with my spaceship flickering like hell. How can I solve this? 1
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| import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class Raptor extends JFrame implements KeyListener
{
Graphics2D g;
JLabel raptorL;
Thread loop;
int x=400;
int y=400;
int skudXStart1=0;
int skudYStart1=0;
int skudXSlut1=0;
int skudYSlut1=0;
int skudXStart2=0;
int skudYStart2=0;
int skudXSlut2=0;
int skudYSlut2=0;
boolean right,left,space;
int enemy1x=600;
int enemy1y=-100;
Raptor()
{
addKeyListener(this);
setBounds(100,50,800,600);
setVisible(true);
}
public void paint(Graphics g1)
{
super.paint(g1);
g = (Graphics2D) g1;
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g.drawImage((new ImageIcon("raptorSmall.gif")).getImage(),x,y,this);
g.setColor(Color.red);
g.drawLine(skudXStart1,skudYStart1,skudXSlut1,skudYSlut1);
g.drawLine(skudXStart2,skudYStart2,skudXSlut2,skudYSlut2);
g.drawImage((new ImageIcon("Enemy1.gif")).getImage(),enemy1x,enemy1y,this);
loop = new Thread(new Runnable()
{
public void run()
{
if(right)
{
x+=1;
}
if(left)
{
x-=1;
}
if(space)
{
skudYStart1-=5;
skudYSlut1-=5;
skudYStart2-=5;
skudYSlut2-=5;
}
try{
Thread.sleep(5000);
}catch(InterruptedException a){System.out.println(a);}
enemy1x-=1;
enemy1y+=1;
}
});
loop.start();
repaint();
}
public void keyPressed(KeyEvent e)
{
if(e.getKeyCode() == KeyEvent.VK_LEFT)
{
left=true;
}
if(e.getKeyCode() == KeyEvent.VK_RIGHT)
{
right=true;
}
if(e.getKeyCode() == KeyEvent.VK_SPACE && skudYStart1 <= 0)
{
skudXStart1=x+20;
skudYStart1=y+30;
skudXSlut1=x+20;
skudYSlut1=450;
skudXStart2=x+78;
skudYStart2=y+30;
skudXSlut2=x+78;
skudYSlut2=450;
space=true;
}
}
public void keyReleased(KeyEvent e)
{
if(e.getKeyCode() == KeyEvent.VK_LEFT)
{
left=false;
}
if(e.getKeyCode() == KeyEvent.VK_RIGHT)
{
right=false;
}
if(e.getKeyCode() == KeyEvent.VK_SPACE)
{
}
}
public void keyTyped(KeyEvent e){}
public static void main(String[] aslan)
{
new Raptor();
}
} |
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