Android小游戏——简单易懂单机人人对战五子棋源码详解-白红宇

最近有人来555974449刘某人的群里问五子棋源码，由于我也是Android菜鸡于是心血来潮就去研究了单机版的五子棋综合了一些大牛的博客，为了防止忘记就所以记录下来，有什么不好处欢迎指导，谢谢！

#布局页面

#自定义view的工具类

package com.gx.wei.gobang;import android.content.Context;import android.content.res.TypedArray;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.Paint;import android.graphics.Paint.Style;import android.graphics.Point;import android.graphics.drawable.BitmapDrawable;import android.os.Bundle;import android.os.Parcelable;import android.util.AttributeSet;import android.view.MotionEvent;import android.view.View;import java.util.ArrayList;import java.util.List;/** * Created by caobotao on 16/3/31. */public class WuziqiPanel extends View {    private int mPanelWidth ;       //棋盘宽度    private float mLineHeight;      //棋盘单行间距    private int MAX_LINE;//棋盘行列数    private Paint mPaint = new Paint();    private int mPanelLineColor;    //棋盘线的颜色    private Bitmap mWhitePiece;     //白棋的图片    private Bitmap mBlackPiece;     //黑棋的图片    //棋子占行距的比例    private final float RATIO_PIECE_OF_LINE_HEIGHT = 3 * 1.0f / 4;    //是否将要下白棋    private boolean mIsWhite = true;    //已下的白棋的列表    private ArrayList
    
      mWhitePieceArray = new ArrayList<>();    //已下的黑棋的列表    private ArrayList
     
       mBlackPieceArray = new ArrayList<>();    //游戏是否结束    private boolean mIsGameOver;    private final int INIT_WIN = -1;            //游戏开始时的状态    public static final int WHITE_WIN = 0;      //白棋赢    public static final int BLACK_WIN = 1;      //黑棋赢    public static final int NO_WIN = 2;         //和棋    private int mGameWinResult = INIT_WIN;      //初始化游戏结果    private OnGameStatusChangeListener listener;//游戏状态监听器    private int MAX_COUNT_IN_LINE;    //多少颗棋子相邻时赢棋    //设置游戏状态监听器    public void setOnGameStatusChangeListener(OnGameStatusChangeListener listener) {        this.listener = listener;    }    public WuziqiPanel(Context context) {        this(context,null);    }    public WuziqiPanel(Context context, AttributeSet attrs) {        this(context, attrs,0);    }    public WuziqiPanel(Context context, AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);        //获取xml中自定义的属性值并对相应的属性赋值        TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.WuziqiPanel);        int n = a.getIndexCount();        for (int i = 0;i < n; i++) {            int attrName = a.getIndex(i);            switch (attrName) {                //棋盘背景                case R.styleable.WuziqiPanel_panel_background:                    BitmapDrawable panelBackgroundBitmap = (BitmapDrawable) a.getDrawable(attrName);                    setBackground(panelBackgroundBitmap);                    break;                //棋盘线的颜色                case R.styleable.WuziqiPanel_panel_line_color:                    mPanelLineColor = a.getColor(attrName, 0x88000000);                    break;                //白棋图片                case R.styleable.WuziqiPanel_white_piece_img:                    BitmapDrawable whitePieceBitmap = (BitmapDrawable) a.getDrawable(attrName);                    mWhitePiece = whitePieceBitmap.getBitmap();                    break;                //黑棋图片                case R.styleable.WuziqiPanel_black_piece_img:                    BitmapDrawable blackPieceBitmap = (BitmapDrawable) a.getDrawable(attrName);                    mBlackPiece = blackPieceBitmap.getBitmap();                    break;                case R.styleable.WuziqiPanel_max_count_line:                    MAX_LINE = a.getInteger(attrName, 10);                    break;                case R.styleable.WuziqiPanel_max_win_count_piece:                    MAX_COUNT_IN_LINE = a.getInteger(attrName, 5);                    break;            }        }        init();    }    //初始化游戏数据    private void init() {        mPaint.setColor(mPanelLineColor);        mPaint.setAntiAlias(true);//抗锯齿        mPaint.setDither(true);//防抖动        mPaint.setStyle(Style.FILL);        if (mWhitePiece == null) {            mWhitePiece = BitmapFactory.decodeResource(getResources(), R.mipmap.stone_w2);        }        if (mBlackPiece == null) {            mBlackPiece = BitmapFactory.decodeResource(getResources(), R.mipmap.stone_b1);        }    }    @Override    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        int widthSize = MeasureSpec.getSize(widthMeasureSpec);        int widthMode = MeasureSpec.getMode(widthMeasureSpec);        int heightSize = MeasureSpec.getSize(heightMeasureSpec);        int heightMode = MeasureSpec.getMode(heightMeasureSpec);        int width = Math.min(widthSize, heightSize);        //解决嵌套在ScrollView中时等情况出现的问题        if (widthMode == MeasureSpec.UNSPECIFIED) {            width = heightSize;        } else if (heightMode == MeasureSpec.UNSPECIFIED) {            width = widthSize;        }        setMeasuredDimension(width, width);    }    @Override    protected void onSizeChanged(int w, int h, int oldw, int oldh) {        super.onSizeChanged(w, h, oldw, oldh);        mPanelWidth = w;        mLineHeight = mPanelWidth * 1.0f / MAX_LINE;        int pieceWidth = (int) (mLineHeight * RATIO_PIECE_OF_LINE_HEIGHT);        mWhitePiece = Bitmap.createScaledBitmap(mWhitePiece, pieceWidth, pieceWidth, false);        mBlackPiece = Bitmap.createScaledBitmap(mBlackPiece, pieceWidth, pieceWidth, false);    }    @Override    protected void onDraw(Canvas canvas) {        super.onDraw(canvas);        drawBoard(canvas);        drawPiece(canvas);        checkGameOver();    }    //重新开始游戏    public void restartGame() {        mWhitePieceArray.clear();        mBlackPieceArray.clear();        mIsGameOver = false;        mGameWinResult = INIT_WIN;        invalidate();    }    //检查游戏是否结束    private void checkGameOver() {        boolean whiteWin = checkFiveInLine(mWhitePieceArray);        boolean blackWin = checkFiveInLine(mBlackPieceArray);        boolean noWin = checkNoWin(whiteWin,blackWin);        //如果游戏结束,获取游戏结果mGameWinResult        if (whiteWin) {            mGameWinResult = WHITE_WIN;        } else if (blackWin) {            mGameWinResult = BLACK_WIN;        } else if(noWin){            mGameWinResult = NO_WIN;        }        if (whiteWin || blackWin || noWin) {            mIsGameOver = true;            //回调游戏状态接口            if (listener != null) {                listener.onGameOver(mGameWinResult);            }        }    }    //检查是否五子连珠    private boolean checkFiveInLine(List
      
        points) {        for (Point point : points) {            int x = point.x;            int y = point.y;            boolean checkHorizontal = checkHorizontalFiveInLine(x,y,points);            boolean checkVertical = checkVerticalFiveInLine(x,y,points);            boolean checkLeftDiagonal = checkLeftDiagonalFiveInLine(x,y,points);            boolean checkRightDiagonal = checkRightDiagonalFiveInLine(x,y,points);            if (checkHorizontal || checkVertical || checkLeftDiagonal || checkRightDiagonal) {                return true;            }        }        return false;    }    //检查向右斜的线上有没有相同棋子的五子连珠    private boolean checkRightDiagonalFiveInLine(int x, int y, List
       
         points) {        int count = 1;        for (int i = 1;i < MAX_COUNT_IN_LINE;i++) {            if (points.contains(new Point(x - i, y - i))) {                count++;            } else {                break;            }        }        if (count == MAX_COUNT_IN_LINE) {            return true;        }        for (int i = 1;i < MAX_COUNT_IN_LINE;i++) {            if (points.contains(new Point(x + i, y + i))) {                count++;            } else {                break;            }        }        if (count == MAX_COUNT_IN_LINE) {            return true;        }        return false;    }    //检查向左斜的线上有没有相同棋子的五子连珠    private boolean checkLeftDiagonalFiveInLine(int x, int y, List
        
          points) {        int count = 1;        for (int i = 1;i < MAX_COUNT_IN_LINE;i++) {            if (points.contains(new Point(x - i, y + i))) {                count++;            } else {                break;            }        }        if (count == MAX_COUNT_IN_LINE) {            return true;        }        for (int i = 1;i < MAX_COUNT_IN_LINE;i++) {            if (points.contains(new Point(x + i, y - i))) {                count++;            } else {                break;            }        }        if (count == MAX_COUNT_IN_LINE) {            return true;        }        return false;    }    //检查竖线上有没有相同棋子的五子连珠    private boolean checkVerticalFiveInLine(int x, int y, List
         
           points) { int count = 1; for (int i = 1;i < MAX_COUNT_IN_LINE;i++) { if (points.contains(new Point(x, y + i))) { count++; } else { break; } } if (count == MAX_COUNT_IN_LINE) { return true; } for (int i = 1;i < MAX_COUNT_IN_LINE;i++) { if (points.contains(new Point(x, y - i))) { count++; } else { break; } } if (count == MAX_COUNT_IN_LINE) { return true; } return false; } //检查横线上有没有相同棋子的五子连珠 private boolean checkHorizontalFiveInLine(int x, int y, List
          
            points) { int count = 1; for (int i = 1;i < MAX_COUNT_IN_LINE;i++) { if (points.contains(new Point(x - i, y))) { count++; } else { break; } } if (count == MAX_COUNT_IN_LINE) { return true; } for (int i = 1;i < MAX_COUNT_IN_LINE;i++) { if (points.contains(new Point(x + i, y))) { count++; } else { break; } } if (count == MAX_COUNT_IN_LINE) { return true; } return false; } //检查是否和棋 private boolean checkNoWin(boolean whiteWin, boolean blackWin) { if (whiteWin || blackWin) { return false; } int maxPieces = MAX_LINE * MAX_LINE; //如果白棋和黑棋的总数等于棋盘格子数,说明和棋 if (mWhitePieceArray.size() + mBlackPieceArray.size() == maxPieces) { return true; } return false; } //绘制棋子 private void drawPiece(Canvas canvas) { for (int i = 0,n = mWhitePieceArray.size();i < n;i++) { Point whitePoint = mWhitePieceArray.get(i); canvas.drawBitmap(mWhitePiece, (whitePoint.x + (1 -RATIO_PIECE_OF_LINE_HEIGHT) / 2) * mLineHeight, (whitePoint.y + (1 -RATIO_PIECE_OF_LINE_HEIGHT) / 2) * mLineHeight,null); } for (int i = 0,n = mBlackPieceArray.size();i < n;i++) { Point blackPoint = mBlackPieceArray.get(i); canvas.drawBitmap(mBlackPiece, (blackPoint.x + (1 -RATIO_PIECE_OF_LINE_HEIGHT) / 2) * mLineHeight, (blackPoint.y + (1 -RATIO_PIECE_OF_LINE_HEIGHT) / 2) * mLineHeight,null); } } //绘制棋盘 private void drawBoard(Canvas canvas) { int w = mPanelWidth; float lineHeight = mLineHeight; for (int i = 0;i < MAX_LINE; i ++) { int startX = (int) (lineHeight / 2); int endX = (int) (w - lineHeight / 2); int y = (int) ((0.5 + i) * lineHeight); canvas.drawLine(startX, y, endX, y, mPaint);//画横线 canvas.drawLine(y, startX, y, endX, mPaint);//画竖线 } } @Override public boolean onTouchEvent(MotionEvent event) { if (mIsGameOver) { return false; } if (event.getAction() == MotionEvent.ACTION_UP) { int x = (int) event.getX(); int y = (int) event.getY(); Point p = getValidPoint(x, y); if (mWhitePieceArray.contains(p) || mBlackPieceArray.contains(p)) { return false; } if (mIsWhite) { mWhitePieceArray.add(p); } else { mBlackPieceArray.add(p); } invalidate(); mIsWhite = !mIsWhite; return true; } return true; } //根据触摸点获取最近的格子位置 private Point getValidPoint(int x, int y) { return new Point((int)(x / mLineHeight),(int)(y / mLineHeight)); } /** * 当View被销毁时需要保存游戏数据 */ private static final String INSTANCE = "instance"; private static final String INSTANCE_GAME_OVER = "instance_game_over"; private static final String INSTANCE_WHITE_ARRAY = "instance_white_array"; private static final String INSTANCE_BLACK_ARRAY = "instance_black_array"; //保存游戏数据 @Override protected Parcelable onSaveInstanceState() { Bundle bundle = new Bundle(); bundle.putParcelable(INSTANCE,super.onSaveInstanceState()); bundle.putBoolean(INSTANCE_GAME_OVER, mIsGameOver); bundle.putParcelableArrayList(INSTANCE_WHITE_ARRAY, mWhitePieceArray); bundle.putParcelableArrayList(INSTANCE_BLACK_ARRAY, mBlackPieceArray); return bundle; } //恢复游戏数据 @Override protected void onRestoreInstanceState(Parcelable state) { if (state instanceof Bundle) { Bundle bundle = (Bundle) state; mIsGameOver = bundle.getBoolean(INSTANCE_GAME_OVER); mWhitePieceArray = bundle.getParcelableArrayList(INSTANCE_WHITE_ARRAY); mBlackPieceArray = bundle.getParcelableArrayList(INSTANCE_BLACK_ARRAY); super.onRestoreInstanceState(bundle.getParcelable(INSTANCE)); return; } super.onRestoreInstanceState(state); }}复制代码

#游戏监听接口

package com.gx.wei.gobang;public interface OnGameStatusChangeListener {    void onGameOver(int gameWinResult);//游戏结束}复制代码

#MainActivity

package com.gx.wei.gobang;import android.content.DialogInterface;import android.support.v7.app.AlertDialog;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.view.Window;import android.widget.Button;public class MainActivity extends AppCompatActivity{    private WuziqiPanel mGamePanel;    private AlertDialog.Builder alertBuilder;    private AlertDialog alertDialog;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        requestWindowFeature(Window.FEATURE_NO_TITLE);        setContentView(R.layout.activity_main);        //游戏结束时弹出对话框        alertBuilder = new AlertDialog.Builder(MainActivity.this);        alertBuilder.setPositiveButton("再来一局", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                mGamePanel.restartGame();            }        });        alertBuilder.setNegativeButton("退出游戏", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                MainActivity.this.finish();            }        });        alertBuilder.setCancelable(false);        alertBuilder.setTitle("此局结束");        mGamePanel = (WuziqiPanel) findViewById(R.id.id_wuziqi);        mGamePanel.setOnGameStatusChangeListener(new OnGameStatusChangeListener() {            @Override            public void onGameOver(int gameWinResult) {                switch (gameWinResult) {                    case WuziqiPanel.WHITE_WIN:                        alertBuilder.setMessage("白棋胜利!");                        break;                    case WuziqiPanel.BLACK_WIN:                        alertBuilder.setMessage("黑棋胜利!");                        break;                    case WuziqiPanel.NO_WIN:                        alertBuilder.setMessage("和棋!");                        break;                }                alertDialog = alertBuilder.create();                alertDialog.show();            }        });    }}复制代码

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