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 < GRID_WIDTH / 2) {
     x = (int) ((event.getX() - mStartX) / GRID_WIDTH);
    } else {
     x = (int) ((event.getX() - mStartX) / GRID_WIDTH) - 1;
    }
    if (y0 < GRID_WIDTH / 2) {
     y = (int) ((event.getY() - mStartY) / GRID_WIDTH);
    } else {
     y = (int) ((event.getY() - mStartY) / GRID_WIDTH) - 1;
    }
    if ((x >= 0 && x < GRID_SIZE - 1)
      && (y >= 0 && y < GRID_SIZE - 1)) {
     if (mGridArray[x][y] == 0) {
      if (wbflag == BLACK) {
       putChess(x, y, BLACK);
       //this.mGridArray[x][y] = 1;
       if(checkWin(BLACK)){ //如果是黑棋赢了
        mText = STRING_LOSE;
        mGameState = GAMESTATE_END;
        showTextView(mText);
       }else if(checkFull()){//如果棋盘满了
        mText = STRING_EQUAL;
        mGameState = GAMESTATE_END;
        showTextView(mText);
       }
       wbflag = WHITE;
      } else if (wbflag == WHITE) {
       putChess(x, y, WHITE);
       //this.mGridArray[x][y] = 2;
       if(checkWin(WHITE)){
        mText = STRING_WIN;
        mGameState = GAMESTATE_END;
        showTextView(mText);
       }else if(checkFull()){//如果棋盘满了
        mText = STRING_EQUAL;
        mGameState = GAMESTATE_END;
        showTextView(mText);
       }
       wbflag = BLACK;
      }
     }
    }
   }
   break;
  case GAMESTATE_PAUSE:
   break;
  case GAMESTATE_END:
   break;
  }
  this.invalidate();
  return true;
 }
 @Override
 public boolean onKeyDown(int keyCode, KeyEvent msg) {
  Log.e("KeyEvent.KEYCODE_DPAD_CENTER", " " + keyCode);
  if(keyCode == KeyEvent.KEYCODE_DPAD_CENTER){
   switch(mGameState){
   case GAMESTATE_PRE:
    break;
   case GAMESTATE_RUN:
    break;
   case GAMESTATE_PAUSE:
    break;
   case GAMESTATE_END:
   {//游戏结束后，按CENTER键继续
    Log.e("Fire Key Pressed:::", "FIRE");
    mGameState = GAMESTATE_RUN;
    this.setVisibility(View.VISIBLE);
    this.mStatusTextView.setVisibility(View.INVISIBLE);
    this.init();
    this.invalidate();
   }
    break;
   }
  }
  return super.onKeyDown(keyCode, msg);
 }
 @Override
 public void onDraw(Canvas canvas) {
  canvas.drawColor(Color.YELLOW);
  // 画棋盘
  {
   Paint paintRect = new Paint();
   paintRect.setColor(Color.GRAY);
   paintRect.setStrokeWidth(2);
   paintRect.setStyle(Style.STROKE);
   for (int i = 0; i < GRID_SIZE; i++) {
    for (int j = 0; j < GRID_SIZE; j++) {
     int mLeft = i * GRID_WIDTH + mStartX;
     int mTop = j * GRID_WIDTH + mStartY;
     int mRright = mLeft + GRID_WIDTH;
     int mBottom = mTop + GRID_WIDTH;
     canvas.drawRect(mLeft, mTop, mRright, mBottom, paintRect);
    }
   }
   //画棋盘的外边框
   paintRect.setStrokeWidth(4);
   canvas.drawRect(mStartX, mStartY, mStartX + GRID_WIDTH*GRID_SIZE, mStartY + GRID_WIDTH*GRID_SIZE, paintRect);
  }
  //画棋子
  for (int i = 0; i < GRID_SIZE-1; i++) {
   for (int j = 0; j < GRID_SIZE-1; j++) {
    if(mGridArray[i][j] == BLACK){
     //通过图片来画
     //canvas.drawBitmap(mChessBW[0], mStartX + (i+1) * GRID_WIDTH - CHESS_DIAMETER/2 , mStartY + (j+1)* GRID_WIDTH - CHESS_DIAMETER/2 , mPaint);
     //通过圆形来画
      {
      Paint paintCircle = new Paint();
      paintCircle.setColor(Color.BLACK);
      canvas.drawCircle(mStartX + (i+1) * GRID_WIDTH, mStartY + (j+1)* GRID_WIDTH, CHESS_DIAMETER/2, paintCircle);
     }
    }else if(mGridArray[i][j] == WHITE){
     //通过图片来画
     //canvas.drawBitmap(mChessBW[1], mStartX + (i+1) * GRID_WIDTH - CHESS_DIAMETER/2 , mStartY + (j+1)* GRID_WIDTH - CHESS_DIAMETER/2 , mPaint);
     //通过圆形来画
     {
      Paint paintCircle = new Paint();
      paintCircle.setColor(Color.WHITE);
      canvas.drawCircle(mStartX + (i+1) * GRID_WIDTH, mStartY + (j+1)* GRID_WIDTH, CHESS_DIAMETER/2, paintCircle);
     }
    }
   }
  }
 }
 public void putChess(int x, int y, int blackwhite){
  mGridArray[x][y] = blackwhite;
 }
 public boolean checkWin(int wbflag){
  for(int i = 0; i < GRID_SIZE - 1 ; i++ ) //i表示列(根据宽度算出来的)
   for(int j = 0; j < GRID_SIZE - 1; j++){//i表示行(根据高度算出来的)
    //检测横轴五个相连
    if(((i+4) < (GRID_SIZE - 1))&&
     (mGridArray[i][j] == wbflag) && (mGridArray[i+1][j] == wbflag)&& (mGridArray[i + 2][j] == wbflag) && (mGridArray[i + 3][j] == wbflag) && (mGridArray[i + 4][j] == wbflag)){
     Log.e("check win or loss:", wbflag + "win");
     mWinFlag = wbflag;
    }
    //纵轴5个相连
    if(((j+4) < (GRID_SIZE - 1))&&
       (mGridArray[i][j] == wbflag) && (mGridArray[i][j+1] == wbflag)&& (mGridArray[i ][j+ 2] == wbflag) && (mGridArray[i ][j+ 3] == wbflag) && (mGridArray[i ][j+ 4] == wbflag)){
       Log.e("check win or loss:", wbflag + "win");
       mWinFlag = wbflag;
      }
    //左上到右下5个相连
    if(((j+4) < (GRID_SIZE - 1))&& ((i+4) < (GRID_SIZE - 1)) &&
       (mGridArray[i][j] == wbflag) && (mGridArray[i+1][j+1] == wbflag)&& (mGridArray[i + 2 ][j+ 2] == wbflag) && (mGridArray[i + 3][j+ 3] == wbflag) && (mGridArray[i + 4 ][j+ 4] == wbflag)){
       Log.e("check win or loss:", wbflag + "win");
       mWinFlag = wbflag;
      }
    //右上到左下5个相连
    if(((i-4) >= 0)&& ((j+4) < (GRID_SIZE - 1)) &&
       (mGridArray[i][j] == wbflag) && (mGridArray[i-1][j+1] == wbflag)&& (mGridArray[i - 2 ][j+ 2] == wbflag) && (mGridArray[i - 3][j+ 3] == wbflag) && (mGridArray[i - 4 ][j+ 4] == wbflag)){
       Log.e("check win or loss:", wbflag + "win");
       mWinFlag = wbflag;
      }
  }
  if( mWinFlag == wbflag){
   return true;
  }else
   return false;
 }
 public boolean checkFull(){
  int mNotEmpty = 0;
  for(int i = 0; i < GRID_SIZE -1; i ++)
   for(int j = 0; j < GRID_SIZE - 1; j ++){
    if(mGridArray[i][j] != 0) mNotEmpty +=1;
   }
  if(mNotEmpty == (GRID_SIZE-1)*(GRID_SIZE-1)) return true;
  else return false;
 }
 public void showTextView(CharSequence mT){
  this.mStatusTextView.setText(mT);
  mStatusTextView.setVisibility(View.VISIBLE);
 }
}