java做的青蛙吃小虫游戏

import java.awt.*; import java.awt.image.*; import java.net.*; public final class frog extends java.applet.Applet implements Runnable { int i,j,k,counter=0,flyX[],flyY[],flyOldX[],flyOldY[],flyDx[],flyDy[]; int nearX,nearY,nearNum,eatDx,eatDy; int eatState=0; int flyBaseX[],flyBaseY[],tongueX[]={18,22,0,0},tongueY[]={27,28,0,0}; double tongue; boolean flyOn[]={false,false,false,false,false}; int currHead=0, count=0; final int headList[]={0,1,2,3,2,1}; double headcount=0; Image collection,offImage,frog,frogheads[],legs,flies[]; Graphics offGraphics; MediaTracker tracker; ImageFilter filter; Thread updateThread; Math m; Font disp1, disp2; String str1="哈哈!"; String str2="计数:"; Color lightBlue = new Color(0,50,255); Color deepGreen = new Color(0,200,0); public void init() { disp1 = new Font("宋体",Font.BOLD,30); disp2 = new Font("楷体",Font.ITALIC,20); offImage=createImage(96,60); offGraphics=offImage.getGraphics(); tracker=new MediaTracker(this); collection = getImage(getCodeBase(),"froggies.gif"); tracker.addImage(collection,0); try { tracker.waitForID(0); } catch(InterruptedException e) {} frogheads=new Image[8]; flies=new Image[3]; filter=new CropImageFilter(0,0,96,60); frog=createImage(new FilteredImageSource(collection.getSource(),filter)); tracker.addImage(frog,1); for (i=0;i<4;i++) for (j=0;j<2;j++) { filter=new CropImageFilter(j*48,60+i*40,48,40); frogheads[i*2+j]=createImage(new FilteredImageSource( collection.getSource(),filter)); tracker.addImage(frogheads[i*2+j],1); } filter=new CropImageFilter(48,40,48,20); legs=createImage(new FilteredImageSource(collection.getSource(),filter)); tracker.addImage(legs,1); for (j=0;j<3;j++) { filter=new CropImageFilter(j*13,220,13,8); flies[j]=createImage(new FilteredImageSource( collection.getSource(),filter)); tracker.addImage(flies[j],1); } flyX=new int[5]; flyY=new int[5]; flyOldX=new int[5]; flyOldY=new int[5]; flyDx=new int[5]; flyDy=new int[5]; flyBaseX=new int[5]; flyBaseY=new int[5]; try { tracker.waitForID(1); } catch(InterruptedException e) {} resize(500,60); } public void run() { while (updateThread !=null) { try { updateThread.sleep(75); } catch (InterruptedException e) {} counter=(counter+1)% 30; nearX=500; nearY=0; nearNum=-1; for (j=0;j<5;j++) { if (flyOn[j]) { flyOldX[j]=flyX[j]; flyOldY[j]=flyY[j]; if (counter==j) flyBaseX[j]=(int)(100+m.random()*400); if (counter==(j+10)) flyBaseY[j]=(int)(16+m.random()*19); if ((flyX[j]<flyBaseX[j])&&(flyDx[j]<11)) flyDx[j]+=2; else if ((flyX[j]>flyBaseX[j])&&(flyDx[j]>-11)) flyDx[j]-=2; if ((flyY[j]<flyBaseY[j])&&(flyDy[j]<7)) flyDy[j]+=2; else if ((flyY[j]>flyBaseY[j])&&(flyDy[j]>-7)) flyDy[j]-=2; flyX[j]+=flyDx[j]; flyY[j]+=flyDy[j]; if (flyX[j]<nearX) { nearX=flyX[j]; nearY=flyY[j]; nearNum=j; } } else { if (m.random()<0.01) { flyX[j]=500; flyY[j]=25; flyBaseY[j]=25; flyDx[j]=0; flyDy[j]=0; flyOn[j]=true; } } } switch (eatState) { case 0: headcount+=0.003*(700-nearX); if (headcount>12) headcount-=6; currHead=headList[((int)headcount)% 6]; if ((nearX>96)&&(nearX<130)&&(nearY<40)&&(nearY>6)) { eatState=1; eatDx=nearX-59; eatDy=nearY-22; tongue=1; flyOn[nearNum]=false; currHead=4; } break; case 1: tongue=tongue-0.3; if (tongue<0) { eatState=2; headcount=0; count+=1; currHead=5; } break; case 2: headcount+=0.1; if (headcount<0.6) currHead=5; else if (headcount<3.3) currHead=6+(((int)(headcount*2))&1); else if (headcount<4.4) currHead=5; else eatState=0; break; default: break; } repaint(); } } public void start() { if (updateThread==null) { updateThread=new Thread(this,"Flies"); updateThread.start(); } } public void stop() { if ((updateThread!=null)&&(updateThread.isAlive())) { updateThread.stop(); } updateThread=null; } public void paint(Graphics g) { g.drawImage(frog,0,0,this); } public void update(Graphics g) { offGraphics.setColor(lightBlue); offGraphics.fillRect(0,0,96,60); offGraphics.drawImage(legs,0,40,this); offGraphics.drawImage(frogheads[currHead],0,0,this); if (eatState==1) { offGraphics.setColor(Color.pink); tongueX[2]=(int)(18+tongue*eatDx); tongueY[2]=(int)(30+tongue*eatDy); tongueX[3]=tongueX[2]; tongueY[3]=(int)(28+tongue*eatDy); offGraphics.fillPolygon(tongueX,tongueY,4); offGraphics.drawPolygon(tongueX,tongueY,4); offGraphics.drawImage(flies[2],(int)(11+tongue*eatDx),(int)(25+tongue*eatDy),this); } g.setColor(deepGreen); g.fillRect(0,60,600,60); g.setColor(lightBlue); g.fillRect(144,0,456,60); g.drawImage(offImage,48,0,this); for (k=0;k<5;k++) if (flyOn[k]) g.drawImage(flies[counter & 1],flyX[k],flyY[k],this); if (eatState==2 & headcount==0) { if(count%5==0) play(getCodeBase(),"spacemusic.au"); else play(getCodeBase(),"drip.au"); } g.setColor(Color.red); if (count%5==0) { g.setFont(disp1); g.drawString(str1,100,30); } g.setFont(disp2); g.drawString(str2+count,400,100); } }