网络112 梁海亮

打开eclipse新建项目TCS。项目结构：

：

然后开始编写java代码：

TCSActivity.java代码：

package lianghailiang.f;

import android.app.Activity;

import android.os.Bundle;

import android.view.KeyEvent;

import android.view.View;

import android.view.View.OnClickListener;

public class TCSActivity extends Activity implements OnClickListener {

gameView game;

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

game=new gameView(this);

setContentView(game);

game.setOnClickListener(this);

}

public void onClick(View arg0) {

// TODO Auto-generated method stub

game.s.ZengZhang();

}

public boolean onKeyDown(int keyCode, KeyEvent event){

switch(keyCode)

{

case KeyEvent.KEYCODE_DPAD_UP:

game.s.GaiBianFangXiang(1);

return true;

case KeyEvent.KEYCODE_DPAD_DOWN:

game.s.GaiBianFangXiang(2);

return true;

case KeyEvent.KEYCODE_DPAD_LEFT:

game.s.GaiBianFangXiang(3);

return true;

case KeyEvent.KEYCODE_DPAD_RIGHT:

game.s.GaiBianFangXiang(4);

return true;

}

return true;

}

}

gameView.java代码：

package lianghailiang.f;

import android.content.Context;

import android.graphics.Bitmap;

import android.graphics.Bitmap.Config;

import android.graphics.Canvas;

import android.view.View;

public class gameView extends View implements Runnable {

Bitmap bmp;

Thread thread;

public She s;

public gameView(Context context){

super(context);

bmp=Bitmap.createBitmap(600,400,Config.ARGB_8888);

s=new She(30,30,3,6);

thread=new Thread(this);

thread.start();

}

public void run() {

// TODO Auto-generated method stub

while(thread!=null)

{

this.postInvalidate();

try{Thread.sleep(300);}

catch(InterruptedException e)

{

e.printStackTrace();

}

}

}

protected void onDraw(Canvas canvas){

super.onDraw(canvas);

s.YiDong();

s.hua(bmp);

canvas.drawBitmap(bmp, 0, 0, null);

}

}

Kuai.java：

package lianghailiang.f;

import android.graphics.Bitmap;

import android.graphics.Canvas;

import android.graphics.Paint;

import android.graphics.Paint.Style;

import android.graphics.Rect;

public class Kuai {

public int hang, lie;

public int BianChang;

public int YanSe;

public void Hua(Bitmap bmp)

{

Canvas c=new Canvas(bmp);

Rect rc=new Rect(lie*BianChang, hang*BianChang,(lie+1)*BianChang,(hang+1)*BianChang);

Paint paint = new Paint();

paint.setColor(YanSe);

paint.setStyle(Style.STROKE);

paint.setStrokeWidth(2);

c.drawRect(rc, paint);

}

}

She.java：

package lianghailiang.f;

import java.util.LinkedList;

import java.util.List;

import android.graphics.Bitmap;

import android.graphics.Canvas;

import android.graphics.Color;

public class She {

private List k;

private int fangXiang;

private int BianChang;

public She(int hang,int lie,int fangxiang,int BianChang)

{

this.fangXiang=fangxiang;

this.BianChang=BianChang;

k=new LinkedList();

Kuai tou=new Kuai();

tou.hang=hang;

tou.lie=lie;

k.add(tou);

Kuai shen=new Kuai();

shen.hang=tou.hang;

shen.lie=tou.lie+1;

k.add(shen);

}

public void hua(Bitmap bmp)

{

Canvas c=new Canvas(bmp);

c.drawColor(Color.BLACK);

for(int i=0;i

{

k.get(i).BianChang=BianChang;

k.get(i).YanSe=Color.WHITE;

k.get(i).Hua(bmp);

}

}

public void ZengZhang()

{

Kuai kk=new Kuai();

Kuai k1=k.get(k.size()-1);

Kuai k2=k.get(k.size()-2);

kk.hang=k1.hang+(k1.hang-k2.hang);

kk.lie=k1.lie+(k1.lie-k2.lie);

k.add(kk);

}

public void YiDong()

{

for(int i=k.size()-1;i>=1;i--)

{

k.get(i).hang=k.get(i-1).hang;

k.get(i).lie=k.get(i-1).lie;

}

if(fangXiang==1)

k.get(0).hang--;

else if(fangXiang==2)

k.get(0).hang++;

else if(fangXiang==3)

k.get(0).lie--;

else

k.get(0).lie++;

}

public void GaiBianFangXiang(int fx)

{

if(fangXiang==2&&fx==1)

return;

if(fangXiang==1&&fx==2)

return;

if(fangXiang==3&&fx==4)

return;

if(fangXiang==4&&fx==3)

return;

fangXiang=fx;

}

}

运行结果：

鼠标点击虚拟机屏幕蛇体变长，点击虚拟机方向键改变蛇体移动方向。