Android开发实现的简单五子棋游戏示例

/*
 * Five In a Row. (五子棋)
 * 这是一个简单的五子棋程序，是我自己的一个练习，贴出来跟大家分享。
 * 希望跟大家一起多交流。 我的GoogleTalk: lixinso  gmail.com
 *
 *
 */
//----------------------
//TBD:AI，悔棋
//---------------------
package lixinsong.game.gobang;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
//这是主程序，继承自Activity，实现onCreate方法。：
public class gobang extends Activity {
 GobangView gbv;
 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
  gbv = (GobangView)this.findViewById(R.id.gobangview);
  gbv.setTextView((TextView)this.findViewById(R.id.text));
}

package lixinsong.game.gobang;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Paint.Style;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.util.Log;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.widget.TextView;
/*棋盘一共10×10格
 * 棋盘居中
 *
 *
 *
 */
//public class GobangView extends View implements Runnable {
public class GobangView extends View{
 protected static int GRID_SIZE = 10;
 protected static int GRID_; // 棋盘格的宽度
 protected static int CHESS_DIAMETER = 26; // 棋的直径
 protected static int mStartX;// 棋盘定位的左上角X
 protected static int mStartY;// 棋盘定位的左上角Y
 private Bitmap[] mChessBW; // 黑棋和白棋
 private static int[][] mGridArray; // 网格
 boolean key = false;
 int wbflag = 1; //该下白棋了=2，该下黑棋了=1. 这里先下黑棋（黑棋以后设置为机器自动下的棋子）
 int mLevel = 1; //游戏难度
 int mWinFlag = 0;
 private final int BLACK=1;
 private final int WHITE=2;
 int mGameState = GAMESTATE_RUN; //游戏阶段：0=尚未游戏，1=正在进行游戏，2=游戏结束
 static final int GAMESTATE_PRE = 0;
 static final int GAMESTATE_RUN = 1;
 static final int GAMESTATE_PAUSE = 2;
 static final int GAMESTATE_END = 3;
 //private TextView mStatusTextView; // 根据游戏状态设置显示的文字
 public TextView mStatusTextView; // 根据游戏状态设置显示的文字
 private Bitmap btm1;
 private final Paint mPaint = new Paint();
 CharSequence mText;
 CharSequence STRING_WIN = "White win! /n Press Fire Key to start new game.";
 CharSequence STRING_LOSE = "Black win! /n Press Fire Key to start new game.";
 CharSequence STRING_EQUAL = "Cool! You are equal! /n Press Fire Key to start new Game.";
 public GobangView(Context context, AttributeSet attrs, int defStyle) {
  super(context, attrs, defStyle);
  }
 public GobangView(Context context, AttributeSet attrs) { //好像调用的是这个构造函数，为什么不是前面的呢
  super(context, attrs);
  this.setFocusable(true); //20090530
  this.setFocusableInTouchMode(true);
  init();
 }
 //这里画棋子后来没有用图片画，而是直接画了圆。因为我做的图片不好看。
 // 初始化黑白棋的Bitmap
 public void init() {
  mGameState = 1; //设置游戏为开始状态
  wbflag = BLACK; //初始为先下黑棋
  mWinFlag = 0; //清空输赢标志。
  mGridArray = new int[GRID_SIZE-1][GRID_SIZE-1];
  mChessBW = new Bitmap[2];
  Bitmap bitmap = Bitmap.createBitmap(CHESS_DIAMETER, CHESS_DIAMETER, Bitmap.Config.ARGB_8888);
  Canvas canvas = new Canvas(bitmap);
  Resources r = this.getContext().getResources();
  Drawable tile = r.getDrawable(R.drawable.chess1);
  tile.setBounds(0, 0, CHESS_DIAMETER, CHESS_DIAMETER);
  tile.draw(canvas);
  mChessBW[0] = bitmap;
  tile = r.getDrawable(R.drawable.chess2);
  tile.setBounds(0, 0, CHESS_DIAMETER, CHESS_DIAMETER);
  tile.draw(canvas);
  mChessBW[1] = bitmap;
 }
 public void setTextView(TextView tv){
  mStatusTextView =tv;
  mStatusTextView.setVisibility(View.INVISIBLE);
 }
 @Override
 protected void onSizeChanged(int w, int h, int oldw, int oldh) {
  mStartX = w / 2 - GRID_SIZE * GRID_WIDTH / 2;
  mStartY = h / 2 - GRID_SIZE * GRID_WIDTH / 2;
 }
  @Override
 public boolean onTouchEvent(MotionEvent event){
  switch (mGameState) {
  case GAMESTATE_PRE:
   break;
  case GAMESTATE_RUN: {
    int x;
    int y;
    float x0 = GRID_WIDTH - (event.getX() - mStartX) % GRID_WIDTH;
    float y0 = GRID_WIDTH - (event.getY() - mStartY) % GRID_WIDTH;
    if (x0 = 0 && x = 0 && y = 0)&& ((j+4)