实例介绍
【实例简介】
【实例截图】
【核心代码】
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Imaging;
using System.IO;
using System.Media;
namespace Chess
{
//棋子枚举类型
public enum Piece
{
无子 = 0,
红车 = 1, 红马 = 2, 红相 = 3, 红士 = 4, 红帅 = 5, 红炮 = 6, 红卒 = 7,
蓝车 = 8, 蓝马 = 9, 蓝象 = 10, 蓝士 = 11, 蓝将 = 12, 蓝炮 = 13, 蓝兵 = 14
}
//走棋方枚举类型
public enum Player
{
无 = 0, 红 = 1, 蓝 = 2
}
//主窗口类
public partial class FormMain : Form
{
//保存象棋棋盘的所有棋子值（棋盘共10行9列，但0行0列保留不用）
private Piece[,] _chess = new Piece[11, 10];
//保存所有的走棋步骤（List对象）
private List<Step> _stepList = new List<Step>();
//保存棋盘(细框)的左上角坐标
private Point _leftTop = new Point(60, 60);
//保存棋盘格子的行高和列宽
private int _rowHeight = 60;
private int _colWidth = 60;
//保存棋子半径
private int _pieceR = 29;
//保存拾起的棋子值（默认为"无子"，即目前没有拾起棋子）
private Piece _pickChess = Piece.无子;
//保存拾起棋子的行号和列号
private int _pickRow = 0;
private int _pickCol = 0;
//保存落下棋子的行号和列号
private int _dropRow = 0;
private int _dropCol = 0;
//保存当前鼠标所在点坐标
private Point _curMousePoint = new Point(0, 0);
//保存棋盘桌面位图
private Bitmap _deskBmp = new Bitmap("desktop.jpg");
//保存红蓝双方14中棋子位图（为了与Piece枚举类型值对应,_pieceBmp[0]舍弃不用）
private Bitmap[] _pieceBmp = new Bitmap[15];
//保存红方头像位图
private Bitmap _redBmp = new Bitmap("红方头像.bmp");
//保存蓝方头像位图
private Bitmap _blueBmp = new Bitmap("蓝方头像.bmp");
//保存当前的走棋方
private Player _curPlayer = Player.无;
//自定义类方法：绘制棋盘
public void DrawBoard(Graphics g)
{
//绘制棋盘桌面（注意："desktop.jpg"文件由教师提供，然后拷贝到"bin\debug"目录下）
g.DrawImage(_deskBmp, new Point(0, 0));
//创建粗画笔和细画笔
Pen thickPen = new Pen(Color.Black, 6);
Pen thinPen = new Pen(Color.Black, 2);
//绘制棋盘外围的粗框
int gap = (int)(_rowHeight * 0.15);
g.DrawRectangle(thickPen, new Rectangle(_leftTop.X - gap, _leftTop.Y - gap, _colWidth * 8 2 * gap, _rowHeight * 9 2 * gap));
//绘制棋盘的10条横线（10行）
for (int row = 1; row <= 10; row )
{
g.DrawLine(thinPen, new Point(_leftTop.X, _leftTop.X _rowHeight * (row - 1)),
new Point(_leftTop.X _colWidth * 8, _leftTop.Y _rowHeight * (row - 1)));
}
//绘制棋盘的9条竖线（9列）
for (int col = 1; col <= 9; col )
{
//绘制棋盘上半部分的竖线
g.DrawLine(thinPen, new Point(_leftTop.X _colWidth * (col - 1), _leftTop.Y),
new Point(_leftTop.X _colWidth * (col - 1), _leftTop.Y _rowHeight * 4));
//绘制棋盘下半部分的竖线
g.DrawLine(thinPen, new Point(_leftTop.X _colWidth * (col - 1), _leftTop.Y _rowHeight * 5),
new Point(_leftTop.X _colWidth * (col - 1), _leftTop.Y _rowHeight * 9));
}
//绘制连接楚河汉界左右两端的两条短竖线
g.DrawLine(thinPen, new Point(_leftTop.X, _leftTop.Y _rowHeight * 4),
new Point(_leftTop.X, _leftTop.Y _rowHeight * 5));
g.DrawLine(thinPen, new Point(_leftTop.X _colWidth * 8, _leftTop.Y _rowHeight * 4),
new Point(_leftTop.X _colWidth * 8, _leftTop.Y _rowHeight * 5));
//绘制上方九宫格的交叉线
g.DrawLine(thinPen, new Point(_leftTop.X _colWidth * 3, _leftTop.Y),
new Point(_leftTop.X _colWidth * 5, _leftTop.Y _rowHeight * 2));
g.DrawLine(thinPen, new Point(_leftTop.X _colWidth * 5, _leftTop.Y),
new Point(_leftTop.X _colWidth * 3, _leftTop.Y _rowHeight * 2));
//绘制下方九宫格的交叉线
g.DrawLine(thinPen, new Point(_leftTop.X _colWidth * 3, _leftTop.Y _rowHeight * 7),
new Point(_leftTop.X _colWidth * 5, _leftTop.Y _rowHeight * 9));
g.DrawLine(thinPen, new Point(_leftTop.X _colWidth * 5, _leftTop.Y _rowHeight * 7),
new Point(_leftTop.X _colWidth * 3, _leftTop.Y _rowHeight * 9));
//书写"楚河"和"汉界"
Font font1 = new Font("隶书", (float)(_rowHeight * 0.8), FontStyle.Regular, GraphicsUnit.Pixel);
SolidBrush brush = new SolidBrush(Color.Black);
g.DrawString("楚河", font1, brush, new Point(_leftTop.X _colWidth, (int)(_leftTop.Y _rowHeight * 4.1)));
g.DrawString("汉界", font1, brush, new Point(_leftTop.X _colWidth * 5, (int)(_leftTop.Y _rowHeight * 4.1)));
//书写行的数字编号
Font font2 = new Font("黑体", (float)(_rowHeight * 0.6), FontStyle.Regular, GraphicsUnit.Pixel);
for (int row = 1; row <= 10; row )
g.DrawString(row.ToString(), font2, brush, new Point((int)(_leftTop.X _colWidth * 8.6),
(int)(_leftTop.Y - _rowHeight * 0.4 _rowHeight * (row - 1))));
//书写列的数字编号
string[] colNumber = new string[9] { "一", "二", "三", "四", "五", "六", "七", "八", "九" };
Font font3 = new Font("黑体", (float)(_rowHeight * 0.5), FontStyle.Regular, GraphicsUnit.Pixel);
for (int col = 1; col <= 9; col )
g.DrawString(colNumber[col - 1], font3, brush, new Point((int)(_leftTop.X - _colWidth * 0.3 _colWidth * (col - 1)),
(int)(_leftTop.Y _rowHeight * 9.6)));
//书写蓝方和红方
g.DrawString("蓝方", font3, brush, new Point(_leftTop.X _colWidth * 8 95, _leftTop.Y (int)(_rowHeight * 2.2)));
g.DrawString("红方", font3, brush, new Point(_leftTop.X _colWidth * 8 95, _leftTop.Y (int)(_rowHeight * 6.4)));
//绘制棋盘第3行的炮营营地标志
DrawCampMark(g, new Point(_leftTop.X _colWidth * 1, _leftTop.Y _rowHeight * 2), true, true);
DrawCampMark(g, new Point(_leftTop.X _colWidth * 7, _leftTop.Y _rowHeight * 2), true, true);
//绘制棋盘第4行的兵营营地标志
DrawCampMark(g, new Point(_leftTop.X _colWidth * 0, _leftTop.Y _rowHeight * 3), false, true);
DrawCampMark(g, new Point(_leftTop.X _colWidth * 2, _leftTop.Y _rowHeight * 3), true, true);
DrawCampMark(g, new Point(_leftTop.X _colWidth * 4, _leftTop.Y _rowHeight * 3), true, true);
DrawCampMark(g, new Point(_leftTop.X _colWidth * 6, _leftTop.Y _rowHeight * 3), true, true);
DrawCampMark(g, new Point(_leftTop.X _colWidth * 8, _leftTop.Y _rowHeight * 3), true, false);
//绘制棋盘第7行的兵营营地标志
DrawCampMark(g, new Point(_leftTop.X _colWidth * 0, _leftTop.Y _rowHeight * 6), false, true);
DrawCampMark(g, new Point(_leftTop.X _colWidth * 2, _leftTop.Y _rowHeight * 6), true, true);
DrawCampMark(g, new Point(_leftTop.X _colWidth * 4, _leftTop.Y _rowHeight * 6), true, true);
DrawCampMark(g, new Point(_leftTop.X _colWidth * 6, _leftTop.Y _rowHeight * 6), true, true);
DrawCampMark(g, new Point(_leftTop.X _colWidth * 8, _leftTop.Y _rowHeight * 6), true, false);
//绘制棋盘第8行的炮营营地标志
DrawCampMark(g, new Point(_leftTop.X _colWidth * 1, _leftTop.Y _rowHeight * 7), true, true);
DrawCampMark(g, new Point(_leftTop.X _colWidth * 7, _leftTop.Y _rowHeight * 7), true, true);
//绘制拾子位置的标记
DrawPickDropMark(g, _pickRow, _pickCol);
//绘制落子位置的标记
DrawPickDropMark(g, _dropRow, _dropCol);
//在相应的位置绘制走棋方的头像
if (_curPlayer == Player.蓝)
g.DrawImage(_blueBmp, new Point(_leftTop.X _colWidth * 8 95, _leftTop.Y _rowHeight * 1 - 10));
else if(_curPlayer == Player.红)
g.DrawImage(_redBmp, new Point(_leftTop.X _colWidth * 8 95, _leftTop.Y _rowHeight * 7 10));
}
//自定义类方法：绘制（炮和兵）的营地标志
public void DrawCampMark(Graphics g, Point center, Boolean drawLeft, Boolean drawRight)
{
//偏移量和线段长度
int offset = (int)(_rowHeight * 0.08), length = (int)(_rowHeight * 0.16);
//直角点坐标
Point corner = new Point();
//画笔对象
Pen thinPen = new Pen(Color.Black, 1);
//是否需要绘制左边标志
if (drawLeft == true)
{
//绘制左上角的直角边
corner.X = center.X - offset;
corner.Y = center.Y - offset;
g.DrawLine(thinPen, new Point(corner.X, corner.Y), new Point(corner.X - length, corner.Y));
g.DrawLine(thinPen, new Point(corner.X, corner.Y), new Point(corner.X, corner.Y - length));
//绘制左下角的直角边
corner.X = center.X - offset;
corner.Y = center.Y offset;
g.DrawLine(thinPen, new Point(corner.X, corner.Y), new Point(corner.X - length, corner.Y));
g.DrawLine(thinPen, new Point(corner.X, corner.Y), new Point(corner.X, corner.Y length));
}
//是否需要绘制右边标志
if (drawRight == true)
{
//绘制右上角的直角边
corner.X = center.X offset;
corner.Y = center.Y - offset;
g.DrawLine(thinPen, new Point(corner.X, corner.Y), new Point(corner.X length, corner.Y));
g.DrawLine(thinPen, new Point(corner.X, corner.Y), new Point(corner.X, corner.Y - length));
//绘制右下角的直角边
corner.X = center.X offset;
corner.Y = center.Y offset;
g.DrawLine(thinPen, new Point(corner.X, corner.Y), new Point(corner.X length, corner.Y));
g.DrawLine(thinPen, new Point(corner.X, corner.Y), new Point(corner.X, corner.Y length));
}
}
//自定义类方法：绘制棋子
public void DrawPiece(Graphics g)
{
//逐行逐列绘制象棋棋子
for (int row = 1; row <= 10; row )
{
for (int col = 1; col <= 9; col )
{
//如果该位置存在棋子
if (_chess[row, col] != Piece.无子)
{
//在棋盘交点位置绘制棋子
g.DrawImage(_pieceBmp[(int)_chess[row, col]], new Point(_leftTop.X _colWidth * (col - 1) - _pieceR,
_leftTop.Y _rowHeight * (row - 1) - _pieceR));
}
}
}
//在当前鼠标点位置绘制拾起的棋子，以显示出拾起的棋子随鼠标而动的效果
if (_pickChess != Piece.无子)
{
g.DrawImage(_pieceBmp[(int)_pickChess], new Point(_curMousePoint.X - _pieceR, _curMousePoint.Y - _pieceR));
}
}
//自定义类方法：把鼠标点击位置坐标转换为棋盘的行号和列号
public bool ConvertPointToRowCol(Point P, out int row, out int col)
{
//获取与鼠标点击位置距离最近的棋盘的交叉点的行号
row = (P.Y - _leftTop.Y) / _rowHeight 1;
//如果鼠标点Y坐标超过棋盘行高的中线，则行号需要再加1
if ((P.Y - _leftTop.Y) % _rowHeight >= _rowHeight / 2)
row = row 1;
//获取与鼠标点击位置距离最近的棋盘的交叉点的列号
col = (P.X - _leftTop.X) / _colWidth 1;
//如果鼠标点X坐标超过棋盘列宽的中线，则列号需要再加1
if ((P.X - _leftTop.X) % _colWidth >= _colWidth / 2)
col = col 1;
//获取与鼠标点击位置距离最近的棋盘的交叉点的坐标
Point chessP = new Point();
chessP.X = _leftTop.X _colWidth * (col - 1);
chessP.Y = _leftTop.Y _rowHeight * (row - 1);
//判断是否落在棋子半径之内，且在10行9列之内
double dist = Math.Sqrt(Math.Pow(P.X - chessP.X, 2) Math.Pow(P.Y - chessP.Y, 2));
if ((dist <= _pieceR) && (row <= 10) && (row >= 1) && (col <= 9) && (col >= 1))
{
//返回true，表示该点击为有效点击
return true;
}
else
{
//把行号和列号设置为0，并返回false，表示该点击为无效点击
row = 0; col = 0;
return false;
}
}
//自定义类方法：绘制拾子或落子位置的标记
public void DrawPickDropMark(Graphics g, int row, int col)
{
//如果拾子或落子位置不存在
if (row != 0)
{
//画笔对象
Pen pen = new Pen(Color.Yellow, 4);
//拾子或落子位置的点坐标
Point p = new Point(_leftTop.X _colWidth * (col - 1), _leftTop.Y _rowHeight * (row - 1));
//在拾子或落子位置的四个角绘制标记
g.DrawLine(pen, p.X - _pieceR, p.Y - _pieceR, p.X - _pieceR / 2, p.Y - _pieceR);
g.DrawLine(pen, p.X - _pieceR, p.Y - _pieceR, p.X - _pieceR, p.Y - _pieceR / 2);
g.DrawLine(pen, p.X _pieceR, p.Y - _pieceR, p.X _pieceR / 2, p.Y - _pieceR);
g.DrawLine(pen, p.X _pieceR, p.Y - _pieceR, p.X _pieceR, p.Y - _pieceR / 2);
g.DrawLine(pen, p.X - _pieceR, p.Y _pieceR, p.X - _pieceR / 2, p.Y _pieceR);
g.DrawLine(pen, p.X - _pieceR, p.Y _pieceR, p.X - _pieceR, p.Y _pieceR / 2);
g.DrawLine(pen, p.X _pieceR, p.Y _pieceR, p.X _pieceR / 2, p.Y _pieceR);
g.DrawLine(pen, p.X _pieceR, p.Y _pieceR, p.X _pieceR, p.Y _pieceR / 2);
}
}
//自定义类方法：播放声音文件
public void PlaySound(string waveFile)
{
//装载声音文件（需要添加System.Media命名空间）
SoundPlayer soundPlay = new SoundPlayer(waveFile);
//使用新线程播放声音
soundPlay.Play(); //注意：soundPlay.PlaySync()也可以播放声音，该方法使用用户界面（UI）线程播放，会导致用户界面的停顿
}
//构造方法
public FormMain()
{
InitializeComponent();
//根据屏幕的分辨率设置棋盘格子的行高和列宽
_rowHeight = Screen.PrimaryScreen.Bounds.Size.Height / 14;
_colWidth = _rowHeight;
//设置象棋棋盘左上角坐标
_leftTop.Y = 2 * _rowHeight;
_leftTop.X = _leftTop.Y;
//把象棋棋盘的棋子数组初始化为"无子"
for (int row = 1; row <= 10; row )
for (int col = 1; col <= 9; col )
_chess[row, col] = Piece.无子;
//装载红蓝双方所有的棋子位图文件（_pieceBmp[0]舍弃不用）
for (int i = 1; i <= 14; i )
{
_pieceBmp[i] = new Bitmap(((Piece)i).ToString() ".bmp");
_pieceBmp[i].MakeTransparent(Color.White);
}
//保存红蓝方头像位图的透明色
_redBmp.MakeTransparent(Color.White);
_blueBmp.MakeTransparent(Color.White);
}
//Paint（窗口绘制）事件响应方法
private void FormMain_Paint(object sender, PaintEventArgs e)
{
//绘制棋盘
DrawBoard(e.Graphics);
//绘制棋子
DrawPiece(e.Graphics);
}
//"开局"菜单的Click事件响应方法
private void MenuItemBegin_Click(object sender, EventArgs e)
{
//显示提示确认框
if (MessageBox.Show("你是否需要开局？", "确认", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
//清空_stepList中的所有走棋步骤
_stepList.Clear();
//设置走棋方（红方先走）
_curPlayer = Player.红;
//把象棋棋盘的棋子数组初始化为"无子"
for (int row = 1; row <= 10; row )
for (int col = 1; col <= 9; col )
_chess[row, col] = Piece.无子;
//初始化蓝方棋子（蓝方在上）
_chess[1, 1] = Piece.蓝车; _chess[1, 2] = Piece.蓝马; _chess[1, 3] = Piece.蓝象;
_chess[1, 4] = Piece.蓝士; _chess[1, 5] = Piece.蓝将; _chess[1, 6] = Piece.蓝士;
_chess[1, 7] = Piece.蓝象; _chess[1, 8] = Piece.蓝马; _chess[1, 9] = Piece.蓝车;
_chess[3, 2] = Piece.蓝炮; _chess[3, 8] = Piece.蓝炮;
_chess[4, 1] = Piece.蓝兵; _chess[4, 3] = Piece.蓝兵; _chess[4, 5] = Piece.蓝兵;
_chess[4, 7] = Piece.蓝兵; _chess[4, 9] = Piece.蓝兵;
//初始化红方棋子（红方在下）
_chess[10, 1] = Piece.红车; _chess[10, 2] = Piece.红马; _chess[10, 3] = Piece.红相;
_chess[10, 4] = Piece.红士; _chess[10, 5] = Piece.红帅; _chess[10, 6] = Piece.红士;
_chess[10, 7] = Piece.红相; _chess[10, 8] = Piece.红马; _chess[10, 9] = Piece.红车;
_chess[8, 2] = Piece.红炮; _chess[8, 8] = Piece.红炮;
_chess[7, 1] = Piece.红卒; _chess[7, 3] = Piece.红卒; _chess[7, 5] = Piece.红卒;
_chess[7, 7] = Piece.红卒; _chess[7, 9] = Piece.红卒;
//初始化拾起的棋子值为"无子"
_pickChess = Piece.无子;
//初始化拾起棋子的行号和列号为0
_pickRow = 0;
_pickCol = 0;
//初始化落下棋子的行号和列号为0
_dropRow = 0;
_dropCol = 0;
//使窗口失效，并发送Paint消息，从而触发Paint事件响应方法重绘棋盘和棋子
Invalidate();
//播放声音文件
PlaySound("Sounds\\begin.wav");
}
}
//MouseDown(鼠标下压)事件响应方法
private void FormMain_MouseDown(object sender, MouseEventArgs e)
{
//如果是鼠标左键下压，则拾起棋子或落下棋子
if (e.Button == MouseButtons.Left)
{
//把鼠标点击位置坐标转换为棋盘的行号和列号
int row, col;
bool valid = ConvertPointToRowCol(new Point(e.X, e.Y), out row, out col);
//判断鼠标点击是否有效
if (valid == true)
{
//处理拾子动作（判断拾起的棋子值是否为"无子"，"无子"表示目前没有拾起棋子）
if (_pickChess == Piece.无子)
{
//判断该位置是否有棋子,且棋子属于当前的走棋方
if (_chess[row, col] != Piece.无子 &&
_chess[row, col].ToString().IndexOf(_curPlayer.ToString()) == 0)
{
//保存拾起的棋子值、行号、列号
_pickChess = _chess[row, col];
//保存拾子位置的行号和列号
_pickRow = row;
_pickCol = col;
//清空拾子位置的棋子值
_chess[_pickRow, _pickCol] = Piece.无子;
//强制刷新窗口（注意：Invalidate()会触发窗口的Paint事件）
Invalidate();
}
}
//处理落子动作
else
{
//判断落子位置是否无子或者为对方棋子
if (_chess[row, col] == Piece.无子 || _chess[row, col].ToString().IndexOf(_curPlayer.ToString()) == -1)
{
//定义落子标志，默认为false，表示不能落子
bool canDrop = false;
//根据拾起的棋子值，进行相应的走棋规则判定，如果通过规则判定，则canDrop为true，可以落子
//象的走棋规则判定
if (_pickChess == Piece.蓝象)
{
//如果走田字，不绊象且不过河，则可以落子
if (Math.Abs(_pickRow - row) == 2 && Math.Abs(_pickCol - col) == 2
&& _chess[(_pickRow row) / 2, (_pickCol col) / 2] == Piece.无子 && row <= 5)
canDrop = true;
}
if (_pickChess == Piece.红相)
{
//如果走田字，中央无子且不越界时
if (Math.Abs(_pickRow - row) == 2 && Math.Abs(_pickCol - col) == 2
&& _chess[(_pickRow row) / 2, (_pickCol col) / 2] == Piece.无子 && row >= 6)
canDrop = true;
}
//马的走棋规则判定
if (_pickChess == Piece.红马 || _pickChess == Piece.蓝马)
{
//如果横着走日字，且不绊马脚
if (Math.Abs(_pickRow - row) == 1 && Math.Abs(_pickCol - col) == 2 &&
_chess[_pickRow, (_pickCol col) / 2] == Piece.无子)
canDrop = true;
//如果竖着走日字，且不绊马脚
if (Math.Abs(_pickRow - row) == 2 && Math.Abs(_pickCol - col) == 1 &&
_chess[(_pickRow row) / 2, _pickCol] == Piece.无子)
canDrop = true;
}
//车的走棋规则
if (_pickChess == Piece.红车 || _pickChess == Piece.蓝车)
{
//如果车横着走
if (_pickRow == row)
{
//比较起点列和落点列的大小
int max = col > _pickCol ? col : _pickCol;
int min = col > _pickCol ? _pickCol : col;
//统计移动路径上（即起点列和落点列之间）棋子数量
int chessNum = 0;
for (int i = min 1; i <= max - 1; i )
if (_chess[row, i] != Piece.无子)
chessNum ;
//只有当移动路径上（即起点列和落点列之间）棋子数量为0时，才允许落子
if (chessNum == 0)
canDrop = true;
}
//如果车竖着走
if (_pickCol == col)
{
//比较起点行和落点行的大小
int max = row > _pickRow ? row : _pickRow;
int min = row > _pickRow ? _pickRow : row;
//统计移动路径上（即起点行和落点行之间）棋子数量
int chessNum = 0;
for (int i = min 1; i <= max - 1; i )
if (_chess[i, col] != Piece.无子)
chessNum ;
//只有当移动路径上（即起点行和落点行之间）棋子数量为0时，才允许落子
if (chessNum == 0)
canDrop = true;
}
}
//士的走棋规则
if (_pickChess == Piece.蓝士)
{
if (col >= 4 && col <= 6 && row >= 1 && row <= 3 &&
Math.Abs(row - _pickRow) == 1 && Math.Abs(col - _pickCol) == 1)
canDrop = true;
}
if (_pickChess == Piece.红士)
{
if (col >= 4 && col <= 6 && row >= 8 && row <= 10 &&
Math.Abs(row - _pickRow) == 1 && Math.Abs(col - _pickCol) == 1)
canDrop = true;
}
//将的走棋规则
if (_pickChess == Piece.蓝将)
{
if (col >= 4 && col <= 6 && row >= 1 && row <= 3 &&
(Math.Abs(row - _pickRow) Math.Abs(col - _pickCol)) == 1)
canDrop = true;
}
if (_pickChess == Piece.红帅)
{
if (col >= 4 && col <= 6 && row >= 8 && row <= 10 &&
(Math.Abs(row - _pickRow) Math.Abs(col - _pickCol)) == 1)
canDrop = true;
}
//炮的走棋规则
if (_pickChess == Piece.红炮 || _pickChess == Piece.蓝炮)
{
//如果炮横着走
if (_pickRow == row)
{
//比较起点列和落点列的大小
int max = col > _pickCol ? col : _pickCol;
int min = col > _pickCol ? _pickCol : col;
//统计移动路径上（即起点列和落点列之间）棋子数量
int chessNum = 0;
for (int i = min 1; i <= max - 1; i )
if (_chess[row, i] != Piece.无子)
chessNum ;
//只有当移动路径上（即起点列和落点列之间）棋子数量为小于等于1时，才允许落子
if ((chessNum == 1 && _chess[row, col] != Piece.无子) || (chessNum == 0 && _chess[row, col] == Piece.无子))
canDrop = true;
}
//如果炮竖着走
if (_pickCol == col)
{
//比较起点行和落点行的大小
int max = row > _pickRow ? row : _pickRow;
int min = row > _pickRow ? _pickRow : row;
//统计移动路径上（即起点行和落点行之间）棋子数量
int chessNum = 0;
for (int i = min 1; i <= max - 1; i )
if (_chess[i, col] != Piece.无子)
chessNum ;
//只有当移动路径上（即起点行和落点行之间）棋子数量小于等于1时，才允许落子
if ((chessNum == 1 && _chess[row, col] != Piece.无子) || (chessNum == 0 && _chess[row, col] == Piece.无子))
canDrop = true;
}
}
//兵的走棋规则
if (_pickChess == Piece.红卒)
{
if (_pickRow - row == 1 && col == _pickCol)
canDrop = true;
}
if (_pickChess == Piece.蓝兵)
{
if (row - _pickRow == 1 && col == _pickCol)
canDrop = true;
}
//如果通过走棋规则判定，则可以落子
if (canDrop == true)
{
//保存走棋步骤到_stepList中
Step tempStep = new Step();
tempStep._Player = _curPlayer;
tempStep._PickChess = _pickChess;
tempStep._PickRow = _pickRow;
tempStep._PickCol = _pickCol;
tempStep._DropChess = _chess[row, col];
tempStep._DropRow = row;
tempStep._DropCol = col;
_stepList.Add(tempStep);
//判断被吃的棋子是否为"红帅"或者"蓝将"
if (_chess[row, col] == Piece.红帅 || _chess[row, col] == Piece.蓝将)
{
//播放相应的声音文件
PlaySound("Sounds\\over.wav");
//显示获胜方信息
MessageBox.Show(_curPlayer.ToString() "方获胜!", "提示",
MessageBoxButtons.OK, MessageBoxIcon.Information);
//禁止继续走棋
_curPlayer = Player.无;
}
else
{
//播放相应的声音文件
if (tempStep._DropChess == Piece.无子)
PlaySound("Sounds\\drop.wav");
else
PlaySound("Sounds\\eat.wav");
//交换走棋方
if (_curPlayer == Player.红)
_curPlayer = Player.蓝;
else
_curPlayer = Player.红;
}
//设置落子位置的棋子值为拾起的棋子值
_chess[row, col] = _pickChess;
//清空_pickChess的值
_pickChess = Piece.无子;
//保存落子位置的行号和列号
_dropRow = row;
_dropCol = col;
//强制刷新窗口（注意：Invalidate()会触发窗口的Paint事件）
Invalidate();
}
}
}
}
}
//如果是鼠标右键下压，则取消拾起棋子
else if (e.Button == MouseButtons.Right)
{
//判断是否已经拾起了棋子
if (_pickChess != Piece.无子)
{
//把拾子位置设置为拾起的棋子值
_chess[_pickRow, _pickCol] = _pickChess;
//清空_pickChess的值
_pickChess = Piece.无子;
//强制刷新窗口（注意：Invalidate()会触发窗口的Paint事件）
Invalidate();
}
}
}
//MouseMove(鼠标移动)事件响应方法
private void FormMain_MouseMove(object sender, MouseEventArgs e)
{
//保存当前鼠标所在点的坐标
_curMousePoint = e.Location;
//判断是否已经拾起棋子，已决定是否需要强制刷新窗口
if (_pickChess != Piece.无子)
{
//强制刷新窗口,以绘制出拾起的棋子随鼠标移动而动的效果
Invalidate();
}
}
//"悔棋"菜单的Click事件响应方法
private void MenuItemUndo_Click(object sender, EventArgs e)
{
//如果_stepList有走棋步骤，则可以悔棋
if (_stepList.Count >= 1)
{
//显示提示确认框
if (MessageBox.Show("你是否需要悔棋？", "确认", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
//取出_stepList的最后一步走棋步骤到lastStep中
Step lastStep = _stepList[_stepList.Count - 1];
//还原最后一步走棋步骤
_curPlayer = lastStep._Player;
_chess[lastStep._PickRow, lastStep._PickCol] = lastStep._PickChess;
_chess[lastStep._DropRow, lastStep._DropCol] = lastStep._DropChess;
//删除_stepList的最后一步走棋步骤
_stepList.RemoveAt(_stepList.Count - 1);
//清空拾起的棋子值、拾子行号、拾子列号、落子行号、落子列号
_pickChess = Piece.无子;
_pickRow = 0;
_pickCol = 0;
_dropRow = 0;
_dropCol = 0;
//如果_stepList还有走棋步骤，则需要显示上一步的拾子位置标记和落子位置标记
if (_stepList.Count >= 1)
{
//取出_stepList的最后一步走棋步骤到lastStep中
lastStep = _stepList[_stepList.Count - 1];
_pickRow = lastStep._PickRow;
_pickCol = lastStep._PickCol;
_dropRow = lastStep._DropRow;
_dropCol = lastStep._DropCol;
}
//强制刷新窗口（注意：Invalidate()会触发窗口的Paint事件）
Invalidate();
}
}
}
//"保存残局"菜单的Click事件响应方法
private void MenuItemSave_Click(object sender, EventArgs e)
{
//显示保存残局对话框
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
//创建一个文件流对象,用于写文件（需要添加System.IO命名空间）
FileStream fs = new FileStream(saveFileDialog1.FileName, FileMode.Create);
//创建一个与文件流对象相对应的二进制写入流对象
BinaryWriter bw = new BinaryWriter(fs);
//写入当前的走棋方
bw.Write((int)_curPlayer);
//逐一写入棋子值
for (int row = 1; row <= 10; row )
for (int col = 1; col <= 9; col )
bw.Write((int)_chess[row, col]);
//写入走棋步骤数
bw.Write(_stepList.Count);
//逐一写入走棋步骤
for (int i = 0; i <= _stepList.Count - 1; i )
{
bw.Write((int)_stepList[i]._Player);
bw.Write((int)_stepList[i]._PickChess);
bw.Write(_stepList[i]._PickRow);
bw.Write(_stepList[i]._PickCol);
bw.Write((int)_stepList[i]._DropChess);
bw.Write(_stepList[i]._DropRow);
bw.Write(_stepList[i]._DropCol);
}
//关闭有关文件流对象
bw.Close();
fs.Close();
}
}
//"打开残局"菜单的Click事件响应方法
private void MenuItemOpen_Click(object sender, EventArgs e)
{
//显示打开残局对话框
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
//创建一个文件流对象,用于读文件
FileStream fs = new FileStream(openFileDialog1.FileName, FileMode.Open, FileAccess.Read);
//创建一个与文件流对象相对应的二进制读入流对象
BinaryReader br = new BinaryReader(fs);
//读取当前的走棋方
_curPlayer = (Player)br.ReadInt32();
//逐一读取棋子值
for (int row = 1; row <= 10; row )
for (int col = 1; col <= 9; col )
_chess[row, col] = (Piece)br.ReadInt32();
//读取走棋步骤数
int count = br.ReadInt32();
//清空原有的走棋步骤
_stepList.Clear();
//逐一写入走棋步骤
for (int i = 0; i <= count - 1; i )
{
//读取走棋步骤到List中
Step step = new Step();
step._Player = (Player)br.ReadInt32();
step._PickChess = (Piece)br.ReadInt32();
step._PickRow = br.ReadInt32();
step._PickCol = br.ReadInt32();
step._DropChess = (Piece)br.ReadInt32();
step._DropRow = br.ReadInt32();
step._DropCol = br.ReadInt32();
_stepList.Add(step);
}
//初始化拾起的棋子值为"无子"
_pickChess = Piece.无子;
//取出_stepList的最后一步走棋步骤到lastStep中
Step lastStep = _stepList[_stepList.Count - 1];
_pickRow = lastStep._PickRow;
_pickCol = lastStep._PickCol;
_dropRow = lastStep._DropRow;
_dropCol = lastStep._DropCol;
//关闭有关文件流对象
br.Close();
fs.Close();
//强制刷新窗口（注意：Invalidate()会触发窗口的Paint事件）
Invalidate();
}
}
}
}
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