c#写的贪吃蛇小游戏

发布时间:2009年06月04日      浏览次数:2172 次
下面是游戏的源代码。有两个文件:Main.cs 和 Snake.cs
//
// Main.cs Begin
//
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Threading;
namespace GreedySnake
{
///
/// formMain 的摘要说明。
///
public class formMain : System.Windows.Forms.Form
{
///
/// 必需的设计器变量。
///
private System.ComponentModel.Container components = null;
private System.Windows.Forms.MenuItem menuGame;
private System.Windows.Forms.MenuItem menuGameBegin;
private System.Windows.Forms.MenuItem menuGameEnd;
private System.Windows.Forms.MainMenu menuMain;
private System.Windows.Forms.MenuItem menuGameRebegin;
private System.Windows.Forms.MenuItem menuOption;
private System.Windows.Forms.MenuItem menuOptionTopMost;
private System.Windows.Forms.MenuItem menuOptionGameDifficulty;
private System.Windows.Forms.MenuItem menuOptionSplit;
private System.Windows.Forms.MenuItem menuOptionGameDifficultyEasy;
private System.Windows.Forms.MenuItem menuOptionGameDifficultyCommon;
private System.Windows.Forms.MenuItem menuOptionGameDifficultyDifficult;
private System.Windows.Forms.Panel panelGameRegion;
private System.Windows.Forms.Panel panel1;
private System.Windows.Forms.Label labelGameDifficulty;
private System.Windows.Forms.Label labelGameCurrentDifficulty;
private System.Windows.Forms.Label labelGameIntroduce;
private System.Windows.Forms.Label labelUp;
private System.Windows.Forms.Label labelDown;
private System.Windows.Forms.Label labelLeft;
private System.Windows.Forms.Label labelRight;
private System.Windows.Forms.Label labelStatistic;
private System.Windows.Forms.Label labelInitCount;
private System.Windows.Forms.Label labelCurrentCount;
private System.Windows.Forms.Label labelScore;

private System.Windows.Forms.Label labelEatGreenCount;
private const int ciSpeed = 80; // 游戏速度(默认难度:一般)
private int iSpeed = ciSpeed; // 游戏速度
private const int iCount = 18; // 蛇长
private const int iRadius = 5; // 蛇骨接的半径
private const int iStep = 2 * iRadius; // 两个相邻的蛇骨中心相差的距离
private const int iMaxCount = 5; // 最多能剩下的食物总数
private Snake snake;
private SnakeFood snakeFood;
public formMain()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
#region 清理正在使用的资源
///
/// 清理所有正在使用的资源。
///
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#endregion
#region Windows 窗体设计器生成的代码
///
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
///
private void InitializeComponent()
{
this.menuMain = new System.Windows.Forms.MainMenu();
this.menuGame = new System.Windows.Forms.MenuItem();
this.menuGameBegin = new System.Windows.Forms.MenuItem();
this.menuGameRebegin = new System.Windows.Forms.MenuItem();
this.menuGameEnd = new System.Windows.Forms.MenuItem();
this.menuOption = new System.Windows.Forms.MenuItem();
this.menuOptionGameDifficulty = new System.Windows.Forms.MenuItem();
this.menuOptionGameDifficultyEasy = new System.Windows.Forms.MenuItem();
this.menuOptionGameDifficultyCommon = new System.Windows.Forms.MenuItem();
this.menuOptionGameDifficultyDifficult = new System.Windows.Forms.MenuItem();
this.menuOptionSplit = new System.Windows.Forms.MenuItem();
this.menuOptionTopMost = new System.Windows.Forms.MenuItem();
this.panelGameRegion = new System.Windows.Forms.Panel();
this.panel1 = new System.Windows.Forms.Panel();
this.labelScore = new System.Windows.Forms.Label();
this.labelEatGreenCount = new System.Windows.Forms.Label();
this.labelCurrentCount = new System.Windows.Forms.Label();
this.labelInitCount = new System.Windows.Forms.Label();
this.labelStatistic = new System.Windows.Forms.Label();
this.labelRight = new System.Windows.Forms.Label();
this.labelLeft = new System.Windows.Forms.Label();
this.labelDown = new System.Windows.Forms.Label();
this.labelUp = new System.Windows.Forms.Label();
this.labelGameIntroduce = new System.Windows.Forms.Label();
this.labelGameCurrentDifficulty = new System.Windows.Forms.Label();
this.labelGameDifficulty = new System.Windows.Forms.Label();
this.panel1.SuspendLayout();
this.SuspendLayout();
//
// menuMain
//
this.menuMain.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.menuGame,
this.menuOption});
//
// menuGame
//
this.menuGame.Index = 0;
this.menuGame.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.menuGameBegin,
this.menuGameRebegin,
this.menuGameEnd});
this.menuGame.Text = "游戏(&G)";
//
// menuGameBegin
//
this.menuGameBegin.Index = 0;
this.menuGameBegin.Text = "开始(&S)";
this.menuGameBegin.Click += new System.EventHandler(this.menuGameBegin_Click);
//
// menuGameRebegin
//
this.menuGameRebegin.Enabled = false;
this.menuGameRebegin.Index = 1;
this.menuGameRebegin.Text = "重新开始(&R)";
this.menuGameRebegin.Click += new System.EventHandler(this.menuGameRebegin_Click);
//
// menuGameEnd
//
this.menuGameEnd.Index = 2;
this.menuGameEnd.Text = "结束(&X)";
this.menuGameEnd.Click += new System.EventHandler(this.menuGameEnd_Click);
//
// menuOption
//
this.menuOption.Index = 1;
this.menuOption.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.menuOptionGameDifficulty,
this.menuOptionSplit,
this.menuOptionTopMost});
this.menuOption.Text = "选项(&O)";
//
// menuOptionGameDifficulty
//
this.menuOptionGameDifficulty.Index = 0;
this.menuOptionGameDifficulty.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.menuOptionGameDifficultyEasy,
this.menuOptionGameDifficultyCommon,
this.menuOptionGameDifficultyDifficult});
this.menuOptionGameDifficulty.Text = "游戏难度";
//
// menuOptionGameDifficultyEasy
//
this.menuOptionGameDifficultyEasy.Index = 0;
this.menuOptionGameDifficultyEasy.RadioCheck = true;
this.menuOptionGameDifficultyEasy.Text = "容易";
this.menuOptionGameDifficultyEasy.Click += new System.EventHandler(this.menuOptionGameDifficultyEasy_Click);
//
// menuOptionGameDifficultyCommon
//
this.menuOptionGameDifficultyCommon.Checked = true;
this.menuOptionGameDifficultyCommon.Index = 1;
this.menuOptionGameDifficultyCommon.RadioCheck = true;
this.menuOptionGameDifficultyCommon.Text = "一般";
this.menuOptionGameDifficultyCommon.Click += new System.EventHandler(this.menuOptionGameDifficultyCommon_Click);
//
// menuOptionGameDifficultyDifficult
//
this.menuOptionGameDifficultyDifficult.Index = 2;
this.menuOptionGameDifficultyDifficult.RadioCheck = true;
this.menuOptionGameDifficultyDifficult.Text = "极难";
this.menuOptionGameDifficultyDifficult.Click += new System.EventHandler(this.menuOptionGameDifficultyDifficult_Click);
//
// menuOptionSplit
//
this.menuOptionSplit.Index = 1;
this.menuOptionSplit.Text = "-";
//
// menuOptionTopMost
//
this.menuOptionTopMost.Index = 2;
this.menuOptionTopMost.Text = "总在最前面";
this.menuOptionTopMost.Click += new System.EventHandler(this.menuOptionTopMost_Click);
//
// panelGameRegion
//
this.panelGameRegion.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.panelGameRegion.BackColor = System.Drawing.Color.Black;
this.panelGameRegion.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
this.panelGameRegion.Location = new System.Drawing.Point(8, 16);
this.panelGameRegion.Name = "panelGameRegion";
this.panelGameRegion.Size = new System.Drawing.Size(500, 540);
this.panelGameRegion.TabIndex = 0;
//
// panel1
//
this.panel1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Right)));
this.panel1.Controls.Add(this.labelScore);
this.panel1.Controls.Add(this.labelEatGreenCount);
this.panel1.Controls.Add(this.labelCurrentCount);
this.panel1.Controls.Add(this.labelInitCount);
this.panel1.Controls.Add(this.labelStatistic);
this.panel1.Controls.Add(this.labelRight);
this.panel1.Controls.Add(this.labelLeft);
this.panel1.Controls.Add(this.labelDown);
this.panel1.Controls.Add(this.labelUp);
this.panel1.Controls.Add(this.labelGameIntroduce);
this.panel1.Controls.Add(this.labelGameCurrentDifficulty);
this.panel1.Controls.Add(this.labelGameDifficulty);
this.panel1.Location = new System.Drawing.Point(515, 8);
this.panel1.Name = "panel1";
this.panel1.Size = new System.Drawing.Size(104, 545);
this.panel1.TabIndex = 3;
//
// labelScore
//
this.labelScore.ForeColor = System.Drawing.Color.White;
this.labelScore.Location = new System.Drawing.Point(8, 184);
this.labelScore.Name = "labelScore";
this.labelScore.Size = new System.Drawing.Size(88, 16);
this.labelScore.TabIndex = 11;
this.labelScore.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
//
// labelEatGreenCount
//
this.labelEatGreenCount.ForeColor = System.Drawing.Color.Green;
this.labelEatGreenCount.Location = new System.Drawing.Point(8, 168);
this.labelEatGreenCount.Name = "labelEatGreenCount";
this.labelEatGreenCount.Size = new System.Drawing.Size(88, 16);
this.labelEatGreenCount.TabIndex = 10;
this.labelEatGreenCount.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
//
// labelCurrentCount
//
this.labelCurrentCount.ForeColor = System.Drawing.Color.White;
this.labelCurrentCount.Location = new System.Drawing.Point(8, 144);
this.labelCurrentCount.Name = "labelCurrentCount";
this.labelCurrentCount.Size = new System.Drawing.Size(88, 16);
this.labelCurrentCount.TabIndex = 9;
this.labelCurrentCount.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
//
// labelInitCount
//
this.labelInitCount.ForeColor = System.Drawing.Color.White;
this.labelInitCount.Location = new System.Drawing.Point(8, 119);
this.labelInitCount.Name = "labelInitCount";
this.labelInitCount.Size = new System.Drawing.Size(88, 16);
this.labelInitCount.TabIndex = 8;
this.labelInitCount.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
//
// labelStatistic
//
this.labelStatistic.Font = new System.Drawing.Font("隶书", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this.labelStatistic.ForeColor = System.Drawing.Color.White;
this.labelStatistic.Location = new System.Drawing.Point(8, 80);
this.labelStatistic.Name = "labelStatistic";
this.labelStatistic.Size = new System.Drawing.Size(88, 32);
this.labelStatistic.TabIndex = 7;
this.labelStatistic.Text = "游戏统计:";
this.labelStatistic.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
//
// labelRight
//
this.labelRight.ForeColor = System.Drawing.Color.White;
this.labelRight.Location = new System.Drawing.Point(8, 408);
this.labelRight.Name = "labelRight";
this.labelRight.Size = new System.Drawing.Size(88, 23);
this.labelRight.TabIndex = 6;
this.labelRight.Text = "D(Right) 右";
this.labelRight.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
//
// labelLeft
//
this.labelLeft.ForeColor = System.Drawing.Color.White;
this.labelLeft.Location = new System.Drawing.Point(8, 376);
this.labelLeft.Name = "labelLeft";
this.labelLeft.Size = new System.Drawing.Size(88, 23);
this.labelLeft.TabIndex = 5;
this.labelLeft.Text = "A(Left) 左";
this.labelLeft.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
//
// labelDown
//
this.labelDown.ForeColor = System.Drawing.Color.White;
this.labelDown.Location = new System.Drawing.Point(8, 344);
this.labelDown.Name = "labelDown";
this.labelDown.Size = new System.Drawing.Size(88, 23);
this.labelDown.TabIndex = 4;
this.labelDown.Text = "S(Down) 向下";
this.labelDown.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
//
// labelUp
//
this.labelUp.ForeColor = System.Drawing.Color.White;
this.labelUp.Location = new System.Drawing.Point(8, 312);
this.labelUp.Name = "labelUp";
this.labelUp.Size = new System.Drawing.Size(88, 23);
this.labelUp.TabIndex = 3;
this.labelUp.Text = "W(Up) 向上";
this.labelUp.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
//
// labelGameIntroduce
//
this.labelGameIntroduce.Font = new System.Drawing.Font("隶书", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this.labelGameIntroduce.ForeColor = System.Drawing.Color.White;
this.labelGameIntroduce.Location = new System.Drawing.Point(8, 272);
this.labelGameIntroduce.Name = "labelGameIntroduce";
this.labelGameIntroduce.Size = new System.Drawing.Size(88, 32);
this.labelGameIntroduce.TabIndex = 2;
this.labelGameIntroduce.Text = "游戏说明:";
this.labelGameIntroduce.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
//
// labelGameCurrentDifficulty
//
this.labelGameCurrentDifficulty.ForeColor = System.Drawing.Color.White;
this.labelGameCurrentDifficulty.Location = new System.Drawing.Point(8, 48);
this.labelGameCurrentDifficulty.Name = "labelGameCurrentDifficulty";
this.labelGameCurrentDifficulty.Size = new System.Drawing.Size(88, 23);
this.labelGameCurrentDifficulty.TabIndex = 1;
this.labelGameCurrentDifficulty.Text = "一般";
this.labelGameCurrentDifficulty.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
//
// labelGameDifficulty
//
this.labelGameDifficulty.Font = new System.Drawing.Font("隶书", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this.labelGameDifficulty.ForeColor = System.Drawing.Color.White;
this.labelGameDifficulty.Location = new System.Drawing.Point(8, 8);
this.labelGameDifficulty.Name = "labelGameDifficulty";
this.labelGameDifficulty.Size = new System.Drawing.Size(88, 32);
this.labelGameDifficulty.TabIndex = 0;
this.labelGameDifficulty.Text = "游戏难度:";
this.labelGameDifficulty.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
//
// formMain
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.BackColor = System.Drawing.Color.Black;
this.ClientSize = new System.Drawing.Size(632, 565);
this.ControlBox = false;
this.Controls.Add(this.panel1);
this.Controls.Add(this.panelGameRegion);
this.Menu = this.menuMain;
this.Name = "formMain";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "贪吃蛇 - by lzumcj";
this.WindowState = System.Windows.Forms.FormWindowState.Maximized;
this.KeyDown += new System.Windows.Forms.KeyEventHandler(this.formMain_KeyDown);
this.panel1.ResumeLayout(false);
this.ResumeLayout(false);
}
#endregion
///
/// 应用程序的主入口点。
///
[STAThread]
static void Main()
{
Application.Run(new formMain());
}
///
/// 选择开始游戏
///
///
///
private void menuGameBegin_Click(object sender, System.EventArgs e)
{
this.menuGameBegin.Enabled = false;
this.menuGameRebegin.Enabled = true;
BeginGame();
}
///
/// 选择重新开始游戏
///
///
///
private void menuGameRebegin_Click(object sender, System.EventArgs e)
{
BeginGame();
}
///
/// 选择结束游戏
///
///
///
private void menuGameEnd_Click(object sender, System.EventArgs e)
{
ExitGame();
}
///
/// 选择游戏难度
///
///
///
private void menuOptionGameDifficultyEasy_Click(object sender, System.EventArgs e)
{
SelectGameDifficulty(sender , e);
}
private void menuOptionGameDifficultyCommon_Click(object sender, System.EventArgs e)
{
SelectGameDifficulty(sender , e);
}
private void menuOptionGameDifficultyDifficult_Click(object sender, System.EventArgs e)
{
SelectGameDifficulty(sender , e);
}
///
/// 选择总在最前面
///
///
///
private void menuOptionTopMost_Click(object sender, System.EventArgs e)
{
menuOptionTopMost.Checked = !menuOptionTopMost.Checked;
this.TopMost = menuOptionTopMost.Checked;
}
///
/// 响应键盘输入
///
///
///
private void formMain_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
{
//
// 根据键盘输入重新设置蛇的运动方向
//
if (snake != null)
snake.ResetMoveDirection(e.KeyData.ToString());
}
///
/// 开始游戏(设置游戏规则)
///
private void BeginGame()
{
int iGreenCount = 0; // 吃的绿色数
// 清除上次剩下的食物
if (snakeFood != null)
{
snakeFood.Clear();
snakeFood.Dispose();
}
snakeFood = new SnakeFood(this.panelGameRegion , iMaxCount , iRadius);
// 清除上次的蛇
if (snake != null)
{
snake.Clear();
snake.Dispose();
}
// 初始化新蛇
snake = new Snake(this.panelGameRegion , iCount , iRadius);
snake.Draw();
int k = 0;
while (!GameOver())
{
Application.DoEvents();
snake.MoveNext();
for (int iIndex=0; iIndex {
if (snakeFood[iIndex].CenterX == snake.CurrentHeadX && snakeFood[iIndex].CenterY == snake.CurrentHeadY)
{
if (snakeFood[iIndex].ColorNode == Color.Green)
{
snake.AddTrail();
iGreenCount++;
snakeFood.RemoveFood(iIndex);
}
}
}
// 统计结果
labelInitCount.Text = "初始蛇长:" + Convert.ToString(iCount);
labelCurrentCount.Text = "现在蛇长:" + Convert.ToString(snake.Count);
labelEatGreenCount.Text = "吃了:● × " + Convert.ToString(iGreenCount);
labelScore.Text = "得分:" + Convert.ToString(iGreenCount * 20);
// 两次移动的时间间隔(即移动速度)
Thread.Sleep(iSpeed);
// 显示随机产生的点 , 且控制当前最多只能有iMaxCount
if (k%(iSpeed/40*30) == 0 && snakeFood.CurrentCount {
snakeFood.AddFood();
}
k++;
}
this.menuGameRebegin.Enabled = true;
DialogResult drResult = MessageBox.Show("重新开始游戏?" , "提示" , MessageBoxButtons.OKCancel , MessageBoxIcon.Information , MessageBoxDefaultButton.Button1);
if (drResult == DialogResult.OK)
BeginGame();
else
ExitGame();
}
///
/// 判断游戏是否满足结束条件
///
///
private bool GameOver()
{
if (snake != null)
{
snake.Check();
return snake.IsEatself || snake.IsOutOfRange;
}
return false;
}
///
/// 退出游戏
///
private void ExitGame()
{
if (Application.AllowQuit)
{
Application.ExitThread();
Application.Exit();
}
}
///
/// 选择游戏难度(互斥)
///
///
///
private void SelectGameDifficulty(object sender , EventArgs e)
{
if (sender == menuOptionGameDifficultyEasy)
{
menuOptionGameDifficultyEasy.Checked = true;
menuOptionGameDifficultyCommon.Checked = false;
menuOptionGameDifficultyDifficult.Checked = false;
labelGameCurrentDifficulty.Text = menuOptionGameDifficultyEasy.Text;;
iSpeed = ciSpeed * 2;
}
else if (sender == menuOptionGameDifficultyCommon)
{
menuOptionGameDifficultyEasy.Checked = false;
menuOptionGameDifficultyCommon.Checked = true;
menuOptionGameDifficultyDifficult.Checked = false;
labelGameCurrentDifficulty.Text = menuOptionGameDifficultyCommon.Text;
iSpeed = ciSpeed;
}
else if (sender == menuOptionGameDifficultyDifficult)
{
menuOptionGameDifficultyEasy.Checked = false;
menuOptionGameDifficultyCommon.Checked = false;
menuOptionGameDifficultyDifficult.Checked = true;
labelGameCurrentDifficulty.Text = menuOptionGameDifficultyDifficult.Text;
iSpeed = ciSpeed / 2;
}
}
}
}
//
// Main.cs End
//

//
// Snake.cs Begin
//
using System;
using System.Collections;
using System.Drawing;
using System.Windows.Forms;
using System.Timers;
namespace GreedySnake
{
#region Snake 蛇身
///
/// Snake 的摘要说明。
///
public class Snake
{
private Control dcControl;
private static int iMoveDirection = 0x1000; // 蛇的运动方向 , 初始化为 right - 0x1000
private int iCount; // 骨节的总数
private int iRadius; // 骨节的半径
private static int iCurrentHeadX; // 当前蛇头的中心坐标 X
private static int iCurrentHeadY; // 当前蛇头的中心坐标 Y
private static int iCurrentTrailX; // 当前蛇尾的中心坐标 X
private static int iCurrentTrailY; // 当前蛇尾的中心坐标 Y
private static int iNextHeadX; // 下一时刻蛇头的中心坐标 X
private static int iNextHeadY; // 下一时刻蛇头的中心坐标 Y
private static int iPreTrailX; // 前一时刻蛇尾的中心坐标 X
private static int iPreTrailY; // 前一时刻蛇尾的中心坐标 Y
private static ArrayList alSnake; // 存放整条蛇
private bool bDisposing = true;
private bool bIsEatself = false; // 是否吃自己
private bool bIsOutOfRange = false; // 是否超出允许活动的范围
public Control DcControl
{
set { dcControl = value; }
get { return dcControl;}
}
public int MoveDirection
{
set { iMoveDirection = value; }
get { return iMoveDirection; }
}
public int Count
{
set { iCount = value; }
get { return iCount; }
}
public int Radius
{
set { iRadius = value; }
get { return iRadius; }
}
public int CurrentHeadX
{
set { iCurrentHeadX = value; }
get { return iCurrentHeadX; }
}
public int CurrentHeadY
{
set { iCurrentHeadY = value; }
get { return iCurrentHeadY; }
}
public int CurrentTrailX
{
set { iCurrentTrailX = value; }
get { return iCurrentTrailX; }
}
public int CurrentTrailY
{
set { iCurrentTrailY = value; }
get { return iCurrentTrailY; }
}
public int NextHeadX
{
set { iNextHeadX = value; }
get { return iNextHeadX; }
}
public int NextHeadY
{
set { iNextHeadY = value; }
get { return iNextHeadY; }
}
public int PreTrailX
{
set { iPreTrailX = value; }
get { return iPreTrailX; }
}
public int PreTrailY
{
set { iPreTrailY = value; }
get { return iPreTrailY; }
}
public bool IsEatself
{
set { bIsEatself = value; }
get { return bIsEatself; }
}
public bool IsOutOfRange
{
set { bIsOutOfRange = value; }
get { return bIsOutOfRange;}
}
public Snake() : this(null , 20 , 5)
{
//
// TODO: 在此处添加构造函数逻辑
//
}
public Snake(Control control , int iCount , int iRadius)
{
DcControl = control;
Count = iCount;
Radius = iRadius;
CurrentHeadX = CurrentTrailX = PreTrailX = 5;
CurrentHeadY = CurrentTrailY = PreTrailY = 5;
Initialize();
}
~Snake()
{
Dispose(false);
}
// 初始化蛇
private void Initialize()
{
alSnake = new ArrayList();
for (int i=0 ; i {
alSnake.Insert(0 , new SnakeNode(DcControl , CurrentHeadX , CurrentHeadY , Radius));
CurrentHeadX += 2 * Radius;
}
CurrentHeadX -= 2 * Radius;
NextHeadX = CurrentHeadX + 2 * Radius;
NextHeadY = CurrentHeadY;
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}

public void Dispose( bool bDisposing )
{
if (bDisposing)
{
// 调用 Dispose 处理受控资源中的字段
MoveDirection = 0x1000;
CurrentHeadX = CurrentHeadY = NextHeadX = NextHeadY = 5;
alSnake.Clear();
}
// 清除非受控资源
}
// 加头
public void AddHead()
{
alSnake.Insert(0 , new SnakeNode(DcControl , NextHeadX , NextHeadY , Radius));
CurrentHeadX = NextHeadX;
CurrentHeadY = NextHeadY;
Count++;
}
// 加尾
public void AddTrail()
{
alSnake.Add(new SnakeNode(DcControl , PreTrailX , PreTrailY , Radius));
Count++;
((SnakeNode)alSnake[Count - 1]).Draw();
}
// 去尾
public void RemoveTrail()
{
if (alSnake.Count>1)
{
PreTrailX = ((SnakeNode)alSnake[Count - 1]).CenterX;
PreTrailY = ((SnakeNode)alSnake[Count - 1]).CenterY;
alSnake.RemoveAt(alSnake.Count - 1);
Count--;
CurrentTrailX = ((SnakeNode)alSnake[Count - 1]).CenterX;
CurrentTrailY = ((SnakeNode)alSnake[Count - 1]).CenterY;
}
}
// 移动到下一位置
public void MoveNext()
{
// 加头
AddHead();
// 画头
((SnakeNode)alSnake[0]).Draw();
// 清除尾(将蛇尾用背景色填充)
((SnakeNode)alSnake[Count-1]).Clear();
// 去尾(将蛇尾从 ArrayList 中删除)
RemoveTrail();
}

// 画整条蛇
public void Draw()
{
for (int i=0; i {
((SnakeNode)alSnake[i]).Draw();
}
}
// 清除整条蛇
public void Clear()
{
for (int i=0; i {
((SnakeNode)alSnake[i]).Clear();
}
}
// 重设运动方向
public void ResetMoveDirection(string strKeyData)
{
// 获取键盘输入
int iKeyDirection;
switch (strKeyData)
{
case "W":
case "Up":
iKeyDirection = 0x0001;
break;
case "S":
case "Down":
iKeyDirection = 0x0010;
break;
case "A":
case "Left":
iKeyDirection = 0x0100;
break;
case "D":
case "Right":
iKeyDirection = 0x1000;
break;
default:
iKeyDirection = 0x0010;
break;
}
// 重设蛇的运动方向(综合按键方向和当前蛇的运动方向考虑)
int iDirection = iKeyDirection | MoveDirection;
if (iDirection == 0x0011 || iDirection == 0x1100)
MoveDirection = MoveDirection; // 运动方向保持不变
else
MoveDirection = iKeyDirection; // 运动方向等于按键方向
}
// 是否超出范围
public void Check()
{
GetNextHeadXY();
// 检查是否吃自己
foreach (SnakeNode sn in alSnake)
{
if (sn.CenterX == NextHeadX && sn.CenterY == NextHeadY)
{
IsEatself = true;
break;
}
}
// 检查是否超出允许活动的范围
IsOutOfRange = NextHeadX<0 || NextHeadX>DcControl.Width || NextHeadY<0 || NextHeadY>DcControl.Height;
}
// 预先算出下个位置坐标
private void GetNextHeadXY()
{
switch (MoveDirection)
{
case 0x0001:
NextHeadX = CurrentHeadX;
NextHeadY = CurrentHeadY - 2 * Radius;
break;
case 0x0010:
NextHeadX = CurrentHeadX;
NextHeadY = CurrentHeadY + 2 * Radius;
break;
case 0x0100:
NextHeadX = CurrentHeadX - 2 * Radius;
NextHeadY = CurrentHeadY;
break;
case 0x1000:
NextHeadX = CurrentHeadX + 2 * Radius;
NextHeadY = CurrentHeadY;
break;
default:
break;
}
}
}
#endregion

#region SnakeNode 蛇的骨节
///
/// Snake Note
/// 蛇的骨节
///
public class SnakeNode
{
private Control dcControl; // 用于画图的控件
private int iCenterX; // 中心坐标 X
private int iCenterY; // 中心坐标 Y
private int iRadius; // 半径
private Color colorNode; // 颜色
public Control DcControl
{
set { dcControl = value; }
get { return dcControl; }
}
public int CenterX
{
set { iCenterX = value; }
get { return iCenterX; }
}
public int CenterY
{
set { iCenterY = value; }
get { return iCenterY; }
}
public int Radius
{
set { iRadius = value; }
get { return iRadius; }
}
public Color ColorNode
{
set { colorNode = value; }
get { return colorNode; }
}
private bool bDisposing = true;
public SnakeNode() : this(null , 0 , 0 , 5)
{
}
public SnakeNode(Control control , int iX , int iY , int iR)
{
DcControl = control;
CenterX = iX;
CenterY = iY;
Radius = iR;
}
~SnakeNode()
{
Dispose(false);
}

public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}

public void Dispose( bool bDisposing )
{
if (bDisposing)
{
// 调用 Dispose 处理受控资源中的字段
CenterX = CenterY = 0;
Radius = 5;
}
// 清除非受控资源
}
// 画自身
public void Draw()
{
Draw(Color.Blue);
}
public void Draw(Color color)
{
// 以指定颜色画圆
ColorNode = color;
DrawCircle(ColorNode);
}
// 清除
public void Clear()
{
// 以控件的背景色画圆
DrawCircle(DcControl.BackColor);
}
// 以骨节的中心画圆
public void DrawCircle(Color color)
{
using (Graphics dc = DcControl.CreateGraphics())
{
// 创建实心的笔刷
SolidBrush sbBrush = new SolidBrush(color);
// 创建圆的区间范围
float x = CenterX - Radius;
float y = CenterY - Radius;
float width = 2 * Radius;
float height = 2 * Radius;
// 创建开始和扫过的弧度
float fStartAngle = 0.0F;
float fSweepAngle = 360.0F;
// 画圆
dc.FillPie(sbBrush , x , y , width , height , fStartAngle , fSweepAngle);
}
}
}
#endregion

#region SnakeFood 蛇的食物
///
/// SnakeFood 的摘要说明。
///
public class SnakeFood
{
private Control dcControl;
private int iMaxCount; // 最多能剩下的食物总数
private int iCurrentCount; // 当前剩下的食物总数
private int iRadius; // 骨节的半径
private Color[] acolor = new Color[]{Color.Red , Color.Green , Color.Yellow}; // 新点的颜色取值范围
private static ArrayList alSnakeFood; // 蛇的食物
private bool bDisposing = true;
public Control DcControl
{
set { dcControl = value; }
get { return dcControl;}
}
public int MaxCount
{
set { iMaxCount = value; }
get { return iMaxCount; }
}
public int CurrentCount
{
set { iCurrentCount = value;}
get { return iCurrentCount;}
}
public int Radius
{
set { iRadius = value; }
get { return iRadius; }
}
public SnakeNode this[int index]
{
get
{
if (index<0 || index>=CurrentCount)
{
throw new IndexOutOfRangeException();
}
return (SnakeNode)alSnakeFood[index];
}
}
public SnakeFood() : this(null , 5 , 5)
{
}
public SnakeFood(Control control , int iMaxCount , int iRadius)
{
DcControl = control;
MaxCount = iMaxCount;
CurrentCount = 0;
Radius = iRadius;
alSnakeFood = new ArrayList();
}
~SnakeFood()
{
Dispose(false);
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}

public void Dispose( bool bDisposing )
{
if (bDisposing)
{
// 调用 Dispose 处理受控资源中的字段
CurrentCount = 0;
alSnakeFood.Clear();
}
// 清除非受控资源
}
// 添加食物
public void AddFood()
{
Random random = new Random();
int iStep = Radius + Radius;
int iX = Radius + iStep * random.Next(0 , DcControl.Width/iStep);
int iY = Radius + iStep * random.Next(0 , DcControl.Height/iStep);
SnakeNode sn = new SnakeNode(DcControl , iX , iY , iRadius);
Random randomIndex = new Random();
Color color = acolor[randomIndex.Next(0 , acolor.Length)];
color = Color.Green;
sn.Draw(color);
alSnakeFood.Add(sn);
// 当前剩下的食物总数加1
CurrentCount++;
}
// 删除被吃掉的食物
public void RemoveFood(int iIndex)
{
if (CurrentCount>0)
{
alSnakeFood.RemoveAt(iIndex);
// 当前剩下的食物总数减1
CurrentCount--;
}
}
// 画所有食物
public void Draw()
{
foreach (SnakeNode sn in alSnakeFood)
{
sn.Draw();
}
}
// 清除所有食物
public void Clear()
{
foreach (SnakeNode sn in alSnakeFood)
{
sn.Clear();
}
}
}
#endregion
}
//
// Snake.cs End
//
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