My game is randomly pausing
So for my final in Java me and my friend made snake, heres the link:
http://myspace-source.com/snake/
Heres the code:
Code:
import java.applet.*;
import java.awt.*;
import java.util.Random;
import java.applet.Applet;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import java.awt.Font;
public class snake extends Applet implements Runnable
{
Random generator = new Random();
int x_pos = 30;
int y_pos = 100;
int x_speed = 0;
int y_speed = 0;
int radius = 5;
int appletsize_x = 500;
int appletsize_y = 500;
int x_apple = 250;
int y_apple = 250;
int nsnake = 1;
int sdir = 2;
int GameOver = 0;
int level= 1;
int start = 1;
int high = 1;
private Image dbImage;
private Graphics dbg;
private Image startimg;
private Image gameoverimg;
int[] x_posa, y_posa,s_dir,x_posa2,y_posa2,s_dir2,emptyarr;
public snake(){
s_dir = new int[10000];
x_posa = new int[10000];
y_posa = new int[10000];
emptyarr = new int[1000];
x_posa[0] = x_pos;
y_posa[0] = y_pos;
s_dir[0] = sdir;
}
public void init()
{
startimg = getImage(getCodeBase(),"caterpillar.gif");
gameoverimg = getImage(getCodeBase(),"owned.gif");
}
public void start ()
{
Thread th = new Thread (this);
th.start ();
}
public void stop()
{
}
public void destroy()
{
}
public boolean keyDown (Event e, int key)
{
if (key == Event.LEFT && sdir != 2)
{
// Ball bewegt sich dann nach links
x_speed = -5;
y_speed = 0;
sdir = 1;
start = 0;
GameOver = 0;
}
else if (x_posa[0] > appletsize_x - radius)
{
// Ändern der Richtung des Balles
x_speed = 0;
}
// rechte Cursortaste
else if (key == Event.RIGHT && sdir != 1)
{
// Ball bewegt sich dann nach rechts
x_speed = 5;
y_speed = 0;
sdir = 2;
start = 0;
GameOver = 0;
}
else if (x_posa[0] > appletsize_x - radius)
{
// Ändern der Richtung des Balles
x_speed = 0;
}
else if (key == Event.DOWN && sdir != 3 )//if key = s go down
{
y_speed = 5;
x_speed = 0;
sdir = 4;
start = 0;
GameOver = 0;
}
else if (y_posa[0] > appletsize_y)
{
y_speed = 0;
}
else if (key == Event.UP && sdir != 4)//if key = w go up
{
y_speed = -5;
x_speed = 0;
sdir=3;
start = 0;
GameOver = 0;
}
else if (y_posa[0] < 0)
{
y_speed = 0;
}
else
{
// Ausgabe von gedrüktem Key und Zahlenwert an die Standardausgabe
System.out.println ("Charakter: " + (char)key + " Integer Value: " + key);
}
return true;
}
public boolean mouseDown (Event e, int x, int y)
{
return true;
}
public void run()
{
Thread.currentThread().setPriority(Thread.MIN_PRIORITY);
while (true)
{
if (x_posa[0] <= x_apple+10 && x_posa[0] >= x_apple-10) //user's mover hit powerup
{
if (y_posa[0] <= y_apple+10 && y_posa[0] >= y_apple-10)
{
nsnake++;
if(s_dir[nsnake-2] == 1)
{
x_posa[nsnake-1] = x_posa[nsnake-2] - 10;
y_posa[nsnake-1] = y_posa[nsnake-2];
s_dir[nsnake-1] = s_dir[nsnake-2];
}
if(s_dir[nsnake-2] == 2)
{
x_posa[nsnake-1] = x_posa[nsnake-2] + 10;
y_posa[nsnake-1] = y_posa[nsnake-2];
s_dir[nsnake-1] = s_dir[nsnake-2];
}
if(s_dir[nsnake-2] == 3)
{
x_posa[nsnake-1] = x_posa[nsnake-2];
y_posa[nsnake-1] = y_posa[nsnake-2]-10;
s_dir[nsnake-1] = s_dir[nsnake-2];
}
if(s_dir[nsnake-2] == 4)
{
x_posa[nsnake-1] = x_posa[nsnake-2];
y_posa[nsnake-1] = y_posa[nsnake-2]+10;
s_dir[nsnake-1] = s_dir[nsnake-2];
}
makeApple();
}
}
if (x_posa[0] > appletsize_x - radius)
{
// Ändern der Richtung des Balles
GameOver = 1;
}
// Ball brührt linken Rand und prallt ab
else if (x_posa[0] < radius)
{
// Ändern der Richtung des Balles
GameOver = 1;
}
// Verändern der x- Koordinate
if (y_posa[0] > appletsize_y - radius)
{
// Ändern der Richtung des Balles
GameOver = 1;
}
// Ball brührt linken Rand und prallt ab
else if (y_posa[0] < radius)
{
// Ändern der Richtung des Balles
GameOver = 1;
}
if(nsnake == 1){
x_posa[0] = x_posa[0] + x_speed;
y_posa[0] = y_posa[0] + y_speed;
s_dir[0] = sdir;
}
else if(nsnake > 1)
{
x_posa2 = x_posa;
y_posa2 = y_posa;
s_dir2 = s_dir;
for (int i = nsnake;i > 0;i--)
{
x_posa[i] = x_posa2[i-1];
y_posa[i] = y_posa2[i-1];
s_dir[i] = s_dir2[i-1];
}
x_posa[0] = x_posa2[0] + x_speed;
y_posa[0] = y_posa2[0] + y_speed;
s_dir[0] = sdir;
}
if (nsnake > 10)
{
for (int i= 10; i < nsnake; i++)
{
if(x_posa[0] == x_posa[i] && y_posa[0] == y_posa[i])
{
GameOver=1;
}
}
}
repaint();
try
{
Thread.sleep (20); //pause for movement
}
catch (InterruptedException ex)
{
// do nothing
}
Thread.currentThread().setPriority(Thread.MAX_PRIORITY);
}
}
public void update (Graphics g)
{
// Initialisierung des DoubleBuffers
if (dbImage == null)
{
dbImage = createImage (this.getSize().width, this.getSize().height);
dbg = dbImage.getGraphics ();
}
// Bildschirm im Hintergrund löschen
dbg.setColor (getBackground ());
dbg.fillRect (0, 0, this.getSize().width, this.getSize().height);
// Auf gelöschten Hintergrund Vordergrund zeichnen
dbg.setColor (getForeground());
paint (dbg);
// Nun fertig gezeichnetes Bild Offscreen auf dem richtigen Bildschirm anzeigen
g.drawImage (dbImage, 0, 0, this);
}
public void paint (Graphics g)
{
g.setColor (Color.green);
for(int i = 0;i<nsnake;i++)
{
g.fillOval (x_posa[i] - radius, y_posa[i] - radius, 2 * radius, 2 * radius);
}
g.setColor (Color.red);
g.fillOval (x_apple - radius, y_apple - radius, 2 * radius, 2 * radius);
g.setColor(Color.black);
g.drawString("Points: "+ nsnake, 5, 475);
g.drawString("High Score: "+ high, 5, 495);
if (start == 1)
{
g.drawImage(startimg,50,50,this);
}
if (GameOver == 1)
{
if(nsnake > high )
{
high = nsnake;
}
x_speed =0;
y_speed =0;
nsnake=1;
x_pos = 30;
y_pos = 100;
sdir = 2;
x_posa[0] = x_pos;
y_posa[0] = y_pos;
s_dir[0] = sdir;
g.drawImage(gameoverimg,100,50,this);
}
}
public void makeApple(){
x_apple = generator.nextInt(96)*5+10; /*set random position*/
y_apple = generator.nextInt(96)*5+10;
}
}
The game runs fine on his computer. When I run it on mine, it runs for about 6 seconds, pauses for 1 second, then keeps going, and repeating that process.
On his computer it goes without pausing the whole game.
I think it has something to do with our thread setup, but I don't know what it is. Any ideas?
