android studio五子棋游戏

以下是基于Android Studio开发的五子棋游戏的实现方法：

1. 首先，我们需要定义一个ChessView类，并在其中定义一些成员变量，以便于后续使用。在需要显示五子棋的布局文件中引入该自定义View。

2. 接下来，我们需要编写构造函数，并在其中进行一些初始化设置。例如，初始化画笔以及将棋子图片转换为bitmap等。

3. 在onMeasure()方法中获取屏幕宽高，在onSizeChanged()方法中获取棋盘的宽度，并计算出棋盘的行高。然后，根据行高缩放棋子大小，使其显示大小合适。

4. 每次调用invalidate()方法时，都会调用onDraw()方法进行界面绘制。在该方法中，我们需要先绘制棋盘，然后绘制用户所下的棋子。

5. 对于人机对战模式，我们需要实现一些简单的算法，以实现人机交互。对于人人对战模式，我们只需要进行输赢方的判定即可。

下面是一个简单的五子棋游戏的实现代码：

public class ChessView extends View {
    private int mPanelWidth;
    private float mLineHeight;
    private Bitmap mWhitePiece;
    private Bitmap mBlackPiece;
    private float ratioPieceOfLineHeight = 3 * 1.0f / 4;

    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_LINE = 10;

    private Paint mPaint = new Paint();

    public ChessView(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 heightSize = MeasureSpec.getSize(heightMeasureSpec);
        int widthMode = MeasureSpec.getMode(widthMeasureSpec);
        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();

            Point p = getValidPoint(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;
    }

    private Point getValidPoint(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 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);
            canvas.drawLine(y, startX, y, endX, mPaint);
        }
    }

    private void drawPieces(Canvas canvas) {
        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);
        }

        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);
        }
    }

    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();
        }
    }

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

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

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

        return false;
    }

    private boolean checkHorizontal(int x, int y, List<Point> points) {
        int count = 1;
        for (int i = 1; i < 5; i++) {
            if (points.contains(new Point(x - i, y))) {
                count++;
            } else {
                break;
            }
        }

        if (count == 5) return true;

        for (int i = 1; i < 5; i++) {
            if (points.contains(new Point(x + i, y))) {
                count++;
            } else {
                break;
            }
        }

        if (count == 5) return true;

        return false;
    }

    private boolean checkVertical(int x, int y, List<Point> points) {
        int count = 1;
        for (int i = 1; i < 5; i++) {
            if (points.contains(new Point(x, y - i))) {
                count++;
            } else {
                break;
            }
        }

        if (count == 5) return true;

        for (int i = 1; i < 5; i++) {
            if (points.contains(new Point(x, y + i))) {
                count++;
            } else {
                break;
            }
        }

        if (count == 5) return true;

        return false;
    }

    private boolean checkLeftDiagonal(int x, int y, List<Point> points) {
        int count = 1;
        for (int i = 1; i < 5; i++) {
            if (points.contains(new Point(x - i, y + i))) {
                count++;
            } else {
                break;
            }
        }

        if (count == 5) return true;

        for (int i = 1; i < 5; i++) {
            if (points.contains(new Point(x + i, y - i))) {
                count++;
            } else {
                break;
            }
        }

        if (count == 5) return true;

        return false;
    }

    private boolean checkRightDiagonal(int x, int y, List<Point> points) {
        int count = 1;
        for (int i = 1; i < 5; i++) {
            if (points.contains(new Point(x + i, y + i))) {
                count++;
            } else {
                break;
            }
        }

        if (count == 5) return true;

        for (int i = 1; i < 5; i++) {
            if (points.contains(new Point(x - i, y - i))) {
                count++;
            } else {
                break;
            }
        }

        if (count == 5) return true;

        return false;
    }
}