hitpighead.java

很好玩的打小猪游戏

//public class HitPigHead {

//}
//程序：棒打猪头
//范例文件：HitPigHead.java

import java.awt.*;
import java.util.*;
import java.applet.*;
import java.awt.event.*;

abstract class SuperSprite   
{
int     X,Y,width,height;
boolean visible,active;

abstract public void paintSprite(Graphics g);
abstract public void updateState();

public int getX()
{
   return X;
}

public int getY()
{
   return Y;
}

public void setLocation(int X,int Y)
{
   this.X = X;
   this.Y = Y;
}

public int getWidth()
{
   return width;
}

public int getHeight()
{
   return height;
}

public void setSize(int width,int height)
{
   this.width  = width;
   this.height = height;
}

public boolean canVisible()
{
   return visible;
}

public void setVisible(boolean v)
{
   visible = v;
}

public boolean canMove()
{
   return active;
}

public void setMove(boolean m)
{
   active = m;
}
}

class PigSprite extends SuperSprite  
{
int     seed;                    
Image   SpriteImage,Frame;     
Applet  Game;                 
Random  R;
boolean showPig;             

public PigSprite(Image SpriteImage,Image Frame,Applet Game)
{
   R = new Random();

   this.SpriteImage = SpriteImage;
   this.Frame       = Frame;
   this.Game        = Game;  
   showPig          = false; 
   
   setVisible(true);            
   setMove(true);           
}

public void updateState()
{
   if(active == true)
   {

      if(R.nextInt(seed) % 100 < 1)
      {
         if(showPig == false)
            showPig = true;
      }
      else if(R.nextInt(seed) % 100 > 95)
      {
         if(showPig == true)
            showPig = false;
      }
   }
}

public void paintSprite(Graphics g) 
{
   if(visible == true)     
   { 
      g.drawImage(Frame,X,Y,Game);   

      if(showPig == true)
         g.drawImage(SpriteImage,X + 12,Y + 18,Game);
   }
}

public void setSeed(int seed)
{
   this.seed = seed;
}


public boolean hit(int X,int Y,int P_Width,int P_Height,int H_Width,
                   int H_Height)      
{
   if((this.X + P_Width >= X) && (this.Y + (P_Height / 2) >= Y) && 
      (X + (H_Width / 2) >= this.X) && (Y + (H_Height / 2) >= this.Y) 
      && showPig)
   {
      showPig = false;
      return true;
   }
   else
      return false;
}
}

class HammerSprite extends SuperSprite 
{
Image  hammer1,hammer2,currentImage;
Applet Game; 

public HammerSprite(Image hammer1,Image hammer2,Applet Game)
{
   this.hammer1 = hammer1;
   this.hammer2 = hammer2;
   this.Game    = Game;

   currentImage = hammer1;

   setLocation(0,0);
   setVisible(false);         
   setMove(false);           
}

public void updateState()
{

   if(currentImage == hammer1)
      currentImage = hammer2;
   else
      currentImage = hammer1;
}

public void paintSprite(Graphics g)  
{
   if(visible == true)      
      g.drawImage(currentImage,X,Y,Game); 
}
}

public class HitPigHead extends Applet 
          implements Runnable,MouseListener,MouseMotionListener
{
int          AppletWidth,AppletHeight,FrameWidth,FrameHeight,
             countX,countY,HammerWidth,HammerHeight,score;
Image        frame,pig,hammer1,hammer2,OffScreen;
Thread       newThread; 
Graphics     drawOffScreen;
MediaTracker MT;   

PigSprite    pigSprite[];
HammerSprite hammerSprite;

public void init()
{
   addMouseListener(this);       
   addMouseMotionListener(this);   

   AppletWidth  = getSize().width;
   AppletHeight = getSize().height;

   countX       = 3;               
   countY       = 3;          
   score        = 0;            


   MT      = new MediaTracker(this);
   pig     = getImage(getDocumentBase(),"Images/pig.gif");
   frame   = getImage(getDocumentBase(),"Images/frame.gif");
   hammer1 = getImage(getDocumentBase(),"Images/hammer1.gif");
   hammer2 = getImage(getDocumentBase(),"Images/hammer2.gif");
   MT.addImage(pig,0);
   MT.addImage(frame,0);
   MT.addImage(hammer1,0);
   MT.addImage(hammer2,0);

   try
   {
      MT.waitForAll();
   }      
   catch(InterruptedException E){ } 

   FrameWidth  = frame.getWidth(this);   
   FrameHeight = frame.getHeight(this);   

   pigSprite   = new PigSprite[9];  
   for(int i=0;i<9;i++)
   {

      pigSprite[i] = new PigSprite(pig,frame,this);


      pigSprite[i].setLocation(i%countX*FrameWidth,
                               i/countY*FrameHeight);

      pigSprite[i].setSeed(i+100);  
   }         


   hammerSprite   = new HammerSprite(hammer1,hammer2,this);
   HammerWidth    = hammer1.getWidth(this); 
   HammerHeight   = hammer1.getHeight(this); 


   OffScreen      = createImage(AppletWidth,AppletHeight);
   drawOffScreen  = OffScreen.getGraphics();

   resize(FrameWidth*countX,FrameHeight*countY);
}

public void start()             
{
   newThread = new Thread(this);  
   newThread.start();
}

public void stop()           
{
   newThread = null;        
}

public void paint(Graphics g)
{

   drawOffScreen.clearRect(0,0,AppletWidth,AppletHeight);


   for(int i=0;i<9;i++)
      pigSprite[i].paintSprite(drawOffScreen);


   hammerSprite.paintSprite(drawOffScreen);
        

   g.drawImage(OffScreen,0,0,this); 
}

public void update(Graphics g)       
{
   paint(g);                     
}

public void run()
{
   while(newThread != null)
   {
      repaint();            

      try
      {
         Thread.sleep(33);     
      }
      catch(InterruptedException E){ }

      for(int i=0;i<9;i++)           
         pigSprite[i].updateState();
   }
}


public void mouseExited(MouseEvent e)  
{
   hammerSprite.setVisible(false);   
   hammerSprite.setLocation(0,0);    
}

public void mouseClicked(MouseEvent e){ }

public void mouseEntered(MouseEvent e)  
{
   hammerSprite.setVisible(true);     


   hammerSprite.setLocation(e.getX() - (HammerWidth / 2),
                            e.getY() - (HammerHeight / 2));
}

public void mousePressed(MouseEvent e)   
{
   hammerSprite.updateState();           

   int X = hammerSprite.getX();       
   int Y = hammerSprite.getY();      


   for(int i=0;i<9;i++)
   {

      if(pigSprite[i].hit(X,Y,FrameWidth,FrameHeight,HammerWidth,
                          HammerHeight) == true)
      {
         score = score + 10;
         showStatus("目前得分: " + score);
      }
   }
}

public void mouseReleased(MouseEvent e)   
{
   hammerSprite.updateState();       
}


public void mouseMoved(MouseEvent e)   
{

   hammerSprite.setLocation(e.getX() - (HammerWidth / 2),
                            e.getY() - (HammerHeight / 2));
}  

public void mouseDragged(MouseEvent e) 
{

   hammerSprite.setLocation(e.getX() - (HammerWidth / 2),
                            e.getY() - (HammerHeight / 2));
}
}