Java实现贪吃蛇

1、项目效果图:源代码:importimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportimportjava.awt.Color;java.awt.Container;java.awt.Dimension;java.awt.Graphics;java.awt.Graphics2D;java.awt.Point;java.awt.event.ComponentAdapter;java.awt.event.ComponentEvent;ja

2、va.awt.event.KeyAdapter;java.awt.event.KeyEvent;java.awt.event.MouseAdapter;java.awt.event.MouseEvent;java.awt.event.MouseMotionAdapter;java.awt.event.WindowAdapter;java.awt.event.WindowEvent;java.awt.geom.Rectangle2D;java.util.ArrayList;java.util.HashMap;java.util.Map;java.util.*;importimportimport

3、importjavax.swing.JFrame;javax.swing.JLabel;javax.swing.JOptionPane;javax.swing.JPanel;/*author:蒋冰*/publicclassKeyBoardextendsJFrameprivateintdirection=0;privateintjudge=0;privatePanelpanel=newPanel();privateRectLabellabel=newRectLabel1200;Integer>();privateHashMap<Integer,Integer>map=newHa

4、shMap<Integer,privateArrayList<RectLabel>list=newArrayList<RectLabel>();privatePointpoint=newPoint1200;privateinttargetX=0;privateinttargetY=0;privatestaticintgoal=3;privateintspeed;privateRectLabeltargetLabel=newRectLabel();privatestaticKeyBoardframe=newKeyBoard();publicstaticvoidmai

5、n(String口args)frame.setVisible(true);publicKeyBoard()super();addWindowListener(newWindowAdapter()OverridepublicvoidwindowActivated(WindowEventarg0)map.put(KeyEvent.map.put(KeyEvent.map.put(KeyEvent.map.put(KeyEvent.map.put(0,0);map.put(KeyEvent.VK_RIGHT,KeyEvent.VK_LEFT);VK_LEFT,KeyEvent.VK_RIGHT);V

6、K_UPKeyEvent.VK_DOWNVK_DOWNKeyEvent.VK_UP);VK_G0);Randomra=newRandom();targetX=ra.nextInt(30)*10+50;targetY=ra.nextInt(20)*10+50;targetLabel.setLocation(targetXtargetY););setBackground(Color.gray);setLayout(null);setBounds(400,200,400,300);addKeyListener(newKeyAdapter()publicvoidkeyPressed(KeyEvente

7、)if(e.getKeyCode()=map.get(direction)return;elsedirection=e.getKeyCode(););for(inti=1;i<goal;i+)labeli=newRectLabel();labeli.setBounds(-10,-10,10,10);list.add(labeli);panel.setBounds(-10,-10,10,10);panel.addComponentListener(newComponentAdapter()OverridepublicvoidcomponentMoved(ComponentEventarg0

8、)point0=panel.getLocation();if(Math.abs(point0.x-targetX)<5&&Math.abs(point0.y-targetY)<5)Randomra=newRandom();targetX=ra.nextInt(30)*10+50;targetY=ra.nextInt(20)*10+50;while(true)for(inti=1;i<goal-1;i+)Pointp=labeli.getLocation();if(p.x=targetX)&&(p.y=targetY)break;elsejudg

9、e+;if(judge=goal-2)break;elsejudge=0;targetX=ra.nextInt(30)*10+50;targetY=ra.nextInt(20)*10+50;targetLabel.setLocation(targetX,targetY);labelgoal=newRectLabel();labelgoal.setBounds(-10,-10,10,10);pointgoal-1=newPoint();list.add(labelgoal);goal+;for(inti=1;i<list.size();i+)pointi=labeli.getLocatio

10、n();labeli.setLocation(pointi-1);frame.add(labeli);)labellist.size().setLocation(pointlist.size()-1);frame.add(labellist.size();for(inti=3;i<list.size();i+)if(Math.abs(label1.getLocation().x-labeli.getLocation().x)<=1&&Math.abs(label1.getLocation().y-labeli.getLocation().y)<=1)direc

11、tion=KeyEvent.VK_G;);targetLabel.setBounds(200,100,10,10);add(targetLabel);add(panel);classPanelextendsJPanelimplementsRunnableprivateintflag=0;privateintx=0;privateinty=0;publicPanel()setPreferredSize(newDimension。，10);newThread(this).start();Overridepublicvoidrun()while(true)if(direction=KeyEvent.

12、VK_RIGHT)if(x<=this.getParent().getWidth()-10)x+=10;setLocation(x,y);elsedirection=KeyEvent.VK_G)if(direction=KeyEvent.VK_G)JOptionPane.showMessageDialog(null"+(goal-3)+"分,"+"欢迎再次光临！");System.exit(0);setLocation(-10,-10);)if(direction=KeyEvent.VK_LEFT)if(x>=0)x-=10;set

13、Location(x,y);elsedirection=KeyEvent.VK_Gif(direction=KeyEvent.VK_DOWNif(y<=this.getParent().getHeight()-10)y+=10;setLocation(x,y);elsedirection=KeyEvent.VK_G;if(direction=KeyEvent.VK_UF)if(y>=0)y-=10;setLocation(x,y);elsedirection=KeyEvent.VK_G;tryif(goal<30)speed=goal;elsespeed=30;Thread.sleep(400-speed*10);catch(InterruptedExceptione)e.printStackTrace();repaint();)classRectLabelextendsJLabelprivateintr=5;/小球半径privateintwidth=r*2;/球宽度privateintheight=r*2;/球高度privateColorballColor=Color.B