慕课网五子连珠代码（增加黑白棋顺序的判断）

视频地址：http://www.imooc.com/learn/641

代码：

增加了黑白棋顺序的判断

MainActivity:

package com.example.lhd.flyfive;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;

public class MainActivity extends AppCompatActivity {

    private WuziqiPanel wuziqiPanel;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.mymain);
        wuziqiPanel = (WuziqiPanel) findViewById(R.id.id_wuziqi);
        findViewById(R.id.restart).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                wuziqiPanel.restart();
            }
        });
    }
}

WuziqiPanel.java

package com.example.lhd.flyfive;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Point;
import android.os.Bundle;
import android.os.Parcelable;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.List;

/** * Created by LHD on 2016/5/2. */
public class WuziqiPanel extends View {

    private int mPanelWidth;
    private float mLineHeight;
    private int MAX_LINE = 10;

    private Paint mPaint = new Paint();
    private Bitmap mWhitePiece;
    private Bitmap mBlackPiece;

    private float ratioPieceOfLineHeight = 3 * 1.0f / 4;
    //白棋先手，或者当前轮到白棋
    private boolean mIsWhite = true;
    private ArrayList<Point> mWhiteArray = new ArrayList<>();
    private ArrayList<Point> mBlackArray = new ArrayList<>();

    private boolean mIsGameOver;
    private boolean mIsWhiteWinner;

    private int MAX_COUNT_IN_LINE = 5;

    public WuziqiPanel(Context context, AttributeSet attrs) {
        super(context, attrs);
// setBackgroundColor(0x44ff0000);
        init();
    }

    private void init() {
        mPaint.setColor(0x88000000);
        mPaint.setAntiAlias(true);
        mPaint.setDither(true);
        mPaint.setStyle(Paint.Style.STROKE);
        mWhitePiece = BitmapFactory.decodeResource(getResources(),
                R.drawable.stone_w2);
        mBlackPiece = BitmapFactory.decodeResource(getResources(),
                R.drawable.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);
        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 * ratioPieceOfLineHeight);
        mWhitePiece = Bitmap.createScaledBitmap(mWhitePiece, pieceWidth, pieceWidth, false);
        mBlackPiece = Bitmap.createScaledBitmap(mBlackPiece, pieceWidth, pieceWidth, false);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        if (mIsGameOver) return false;
        int action = event.getAction();
        if (action == MotionEvent.ACTION_UP) {
            int x = (int) event.getX();
            int y = (int) event.getY();
            //用户点击的是一个范围而不是一个坐标点
            Point p = getPoint(x, y);

            if (mWhiteArray.contains(p) || mBlackArray.contains(p)) {
                return false;
            }

            if (mIsWhite) {
                mWhiteArray.add(p);
            } else {
                mBlackArray.add(p);
            }
            invalidate();
            mIsWhite = !mIsWhite;
            return true;
        }


        return true;
    }

    private Point getPoint(int x, int y) {
        return new Point((int) (x / mLineHeight), (int) (y / mLineHeight));
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        drawBoard(canvas);
        drawPieces(canvas);
        checkGameOver();
    }

    private void checkGameOver() {
        boolean whiteWin = checkFiveInLine(mWhiteArray);
        boolean blackWin = checkFiveInLine(mBlackArray);
        if (whiteWin || blackWin) {
            mIsGameOver = true;
            mIsWhiteWinner = whiteWin;
            String text = mIsWhiteWinner ? "白棋胜利" : "黑棋胜利";
            Toast.makeText(getContext(), text, Toast.LENGTH_SHORT).show();
        }
        if(checkfallPanel()){
            mIsGameOver = true;
            Toast.makeText(getContext(),"和棋",Toast.LENGTH_SHORT).show();
        }
    }

    private boolean checkFiveInLine(List<Point> points) {
        for (Point p : points) {
            int x = p.x;
            int y = p.y;
            boolean win = checkHorizontal(x, y, points);
            if (win) return true;

            win = checkVetical(x, y, points);
            if (win) return true;

            win = checkLeft(x, y, points);
            if (win) return true;

            win = checkRight(x, y, points);
            if (win) return true;

        }
        return false;
    }

    private boolean checkVetical(int x, int y, List<Point> points) {
        int count = 1;
        //检测左边
        for (int i = 1; i < MAX_COUNT_IN_LINE; i++) {
            if (points.contains(new Point(x, y - i))) {
                count++;
            } else {
                break;
            }
        }
        //检测右边
        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;

    }

    /** * 判断x，y位置的棋子是否横向有5个一致 * * @param x * @param y * @param points * @return */
    private boolean checkHorizontal(int x, int y, List<Point> points) {
        int count = 1;
        //检测左边
        for (int i = 1; i < MAX_COUNT_IN_LINE; i++) {
            if (points.contains(new Point(x - i, y))) {
                count++;
            } else {
                break;
            }
        }
        //检测右边
        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;
    }

    private boolean checkfallPanel() {
        if(mBlackArray.size()+mWhiteArray.size()==100){
            return true;
        }
        return false;
    }
    //检测左斜线
    private boolean checkLeft(int x, int y, List<Point> points) {
        int count = 1;
        //检测左上斜线
        for (int i = 1; i < MAX_COUNT_IN_LINE; i++) {
            if (points.contains(new Point(x - i, y + i))) {
                count++;
            } else {
                break;
            }
        }
        ////检测左下斜线
        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;
    }

    private boolean checkRight(int x, int y, List<Point> points) {
        int count = 1;
        //检测左边
        for (int i = 1; i < MAX_COUNT_IN_LINE; i++) {
            if (points.contains(new Point(x - i, y - i))) {
                count++;
            } else {
                break;
            }
        }
        //检测右边
        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;
    }


    private void drawPieces(Canvas canvas) {
        for (int i = 0, n = mBlackArray.size(); i < n; i++) {
            Point blackPoint = mBlackArray.get(i);
            canvas.drawBitmap(mBlackPiece,
                    (blackPoint.x + (1 - ratioPieceOfLineHeight) / 2) * mLineHeight,
                    (blackPoint.y + (1 - ratioPieceOfLineHeight) / 2) * mLineHeight, null);
        }
        for (int i = 0, n = mWhiteArray.size(); i < n; i++) {
            Point whitePoint = mWhiteArray.get(i);
            canvas.drawBitmap(mWhitePiece,
                    (whitePoint.x + (1 - ratioPieceOfLineHeight) / 2) * mLineHeight,
                    (whitePoint.y + (1 - ratioPieceOfLineHeight) / 2) * mLineHeight, null);
        }
    }

    private void drawBoard(Canvas canvas) {
        int w = mPanelWidth;
        float lineHeight = mLineHeight;
        for (int i = 0; i < MAX_LINE; i++) {
            int starx = (int) (lineHeight / 2);
            int endx = (int) (w - lineHeight / 2);

            int y = (int) ((0.5 + i) * lineHeight);
            canvas.drawLine(starx, y, endx, y, mPaint);
            canvas.drawLine(y, starx, y, endx, mPaint);
        }
    }

    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";
    private static final String INSTANCE_WHO_FIRST = "instance_who_first";

    public void restart(){
        mWhiteArray.clear();
        mBlackArray.clear();
        mIsGameOver = false;
        mIsWhiteWinner = false;
        mIsWhite = true;
        invalidate();
    }

    @Override
    protected Parcelable onSaveInstanceState() {
        Bundle bundle = new Bundle();
        //系统默认储存的东西一定不要忽视了，也要保存一下
        bundle.putParcelable(INSTANCE, super.onSaveInstanceState());
        bundle.putBoolean(INSTANCE_GAME_OVER, mIsGameOver);
        bundle.putParcelableArrayList(INSTANCE_WHITE_ARRAY, mWhiteArray);
        bundle.putParcelableArrayList(INSTANCE_BLACK_ARRAY,mBlackArray);
        //判断当前的总的棋子的数两，如果是奇数则说明下一步该黑子了。反之则是白子。
        if((mWhiteArray.size()+mBlackArray.size())%2==0){
            //下一步该下白子了
            mIsWhite = true;
        }else{
            //下一步该下黑子了
            mIsWhite = false;
        }
        //存储下棋顺序
        bundle.putBoolean(INSTANCE_WHO_FIRST,mIsWhite);
        return bundle;
    }

    @Override
    protected void onRestoreInstanceState(Parcelable state) {
        if (state instanceof Bundle){
            Bundle bundle = (Bundle) state;
            mIsGameOver = bundle.getBoolean(INSTANCE_GAME_OVER);
            mWhiteArray = bundle.getParcelableArrayList(INSTANCE_WHITE_ARRAY);
            mBlackArray = bundle.getParcelableArrayList(INSTANCE_BLACK_ARRAY);
            mIsWhite    = bundle.getBoolean(INSTANCE_WHO_FIRST);
            super.onRestoreInstanceState(bundle.getParcelable(INSTANCE));
            return;
        }
        super.onRestoreInstanceState(state);
    }
}

mymain.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@drawable/aa" android:orientation="vertical">

    <com.example.lhd.flyfive.WuziqiPanel  android:id="@+id/id_wuziqi" android:layout_width="match_parent" android:layout_height="600dp" android:layout_centerInParent="true" />

    <Button  android:id="@+id/restart" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:text="再来一局" />
</RelativeLayout>