java游戏--拼图

package lession.game.game1;

import java.util.*;

import java.awt.*;

import java.awt.event.*;

import java.applet.*;

public class ppuzzle extends Applet{

Image imgppuzzle,buffer;

Point fifteen=new Point(3,3);

Canvas screen;

Graphics gs,gb;

Button bstart=new Button("开始游戏");

Button bsee=new Button("正确图象");

boolean running;

int sx,sy;

int[][]map={{0,4,8,12},{1,5,9,13},{2,6,10,14},{3,7,11,15}};

public void init(){

PrepareImage();

sx=imgppuzzle.getWidth(this)/4; //?????????????????????????????

sy=imgppuzzle.getHeight(this)/4;

this.setBackground(Color.blue);

InitScreen();

InitButtons();

add(screen);

add(bstart);

add(bsee);

this.setSize(sx*6,sy*4+10);

// this.setVisible(true);

//System.out.println("ddddddd");

}

public void PrepareImage(){

/*Class cl=this.getClass();

URL url=cl.getResource("2.gif");

imgppuzzle=getImage(url);

*/

imgppuzzle=getImage(getCodeBase(),"image/2.gif");

MediaTracker mt=new MediaTracker(this);

mt.addImage(imgppuzzle,0);

try{

mt.waitForAll();

}catch(Exception e){}

buffer=createImage(imgppuzzle.getWidth(this),imgppuzzle.getHeight(this));

gb=buffer.getGraphics();

}

public void InitMap(){

Random rnd=new Random();

int temp,x1,y1,x2,y2;

for(int i=0;i<100;i++){

x1=rnd.nextInt(4);

x2=rnd.nextInt(4);

y1=rnd.nextInt(4);

y2=rnd.nextInt(4);

temp=map[x1][y1];

map[x1][y1]=map[x2][y2];

map[x2][y2]=temp;

}

outer:

for(int j=0;j<4;j++)

for(int i=0;i<4;i++){

if(map[i][j]==15){

fifteen.setLocation(i,j); //设置第15快图象的显示位置

break outer;

}

}

}

public void InitScreen(){

screen=new Canvas(){

public void paint(Graphics g){

if(gs==null) gs=getGraphics();

if(running) DrawScreen();

else //如果游戏没开始显示整个图象

g.drawImage(imgppuzzle,0,0,this);

}

};

screen.setSize(imgppuzzle.getWidth(this),imgppuzzle.getHeight(this));

screen.addMouseListener(new MouseAdapter (){

public void mousePressed(MouseEvent me){

// System.out.println("选择了块1");

if(running==false) return;

// System.out.println("选择了块2");

int x=me.getX()/sx;

int y=me.getY()/sy;

int fx=(int)fifteen.getX();

int fy=(int)fifteen.getY();

// System.out.println(x+","+y+" "+fx+","+fy);

if((Math.abs(fx-x)+Math.abs(fy-y))>=2) return;

// System.out.println("选择了块3");

if(map[x][y]==15) return ;

// System.out.println("选择了块4");

map[fx][fy]=map[x][y]; //交换两快图象的位置 重新设置

map[x][y]=15;

fifteen.setLocation(x,y);

//System.out.println("选择了块");

DrawScreen();

}

});

}

public void InitButtons(){

bstart.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent ae){

InitMap();

DrawScreen();

running=true;

bsee.setLabel("显示图象");

}

});

bsee.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent ae){

if(bsee.getLabel().equals("继续")){//??????????????????????????????

DrawScreen();

bsee.setLabel("显示图象");

}

else{

gs.drawImage(imgppuzzle,0,0,screen);

bsee.setLabel("继续");

}

}

});

}

public void DrawScreen(){

gb.clearRect(0,0,sx*4,sy*4);

for(int j=0;j<4;j++)

for(int i=0;i<4;i++){

if(map[i][j]!=15) DrawSegment(map[i][j],i,j);

}

gs.drawImage(buffer,0,0,screen);

}

public void DrawSegment(int seg,int x,int y){

int dx=seg%4 *sx;

int dy=seg/4 *sy;

gb.drawImage(imgppuzzle,x*sx,y*sy,x*sx+sx-1,y*sy+sy-1,dx,dy,dx+sx-1,dy+sy-1,screen);

}

}