贪吃蛇代码

贪吃蛇代码 // 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