华容道问题求解_详细设计(六）之简单互动和动画

简单互动

为了增加趣味性，增加了简单的互动功能，即实现了一个简单的华容道游戏。在HrdGame中有两个鼠标操作的函数，在传入的控件中调用这个两个函数就可以了。
代码如下：
Click事件

        private void pnl_GameBoard_MouseClick(object sender, MouseEventArgs e) => _hrdGame.Click(e);

MouseMove事件

      private void pnl_GameBoard_MouseMove(object sender, MouseEventArgs e){if(cbx_ByHuman.Checked)//增加了一个界面控制CheckBox_hrdGame.MouseMove(e);}

mouseMove中的代码相对简单，并没有有抓取棋子的操作，只是在滑过的棋子做了高亮处理，这样显得稍微生动一些。

Click 事件核心代码

       internal void Click(MouseEventArgs e){var openPcsLst = GetOpenPcs();// select an open piecevar basicPcsArr = GetPieces();// pay attention to here , after the serilization !!!!!!!!!!!!!!// 检查鼠标是否在点击了 Open Piece，如果是则认为是选择了该 棋子，如果不是，则认为是把之前的棋子移动到这个位置。foreach (var openPcs in openPcsLst){var idx = openPcs.piece.idx;var pcs = basicPcsArr[idx];Rectangle pcsRect = new Rectangle((int)pcs.PcsLoc.X, (int)pcs.PcsLoc.Y, pcs.PcsSize.Width, pcs.PcsSize.Height);if (pcsRect.Contains(e.Location)){gameState.selPcs = pcs;RefreshLayout();break;}}// 移动到鼠标点击位置的合理性判断，如果是空白区域，则进行移动处理。if (gameState.selPcs == null){return;}var blnkPcs = GetBlanks();foreach (var blkPcs in blnkPcs){//var pcs = openPcs.piece;Rectangle pcsRect = new Rectangle((int)blkPcs.PcsLoc.X, (int)blkPcs.PcsLoc.Y, blkPcs.PcsSize.Width,blkPcs.PcsSize.Height);if (pcsRect.Contains(e.Location)){var selPcs = gameState.selPcs;var selPos = selPcs.GetHrdPos();var blkPos = blkPcs.GetHrdPos();if (Math.Abs(selPos.X - blkPos.X) < 2 + selPcs.PcsSize.Width && Math.Abs(selPos.Y - blkPos.Y) < 2 + selPcs.PcsSize.Height){ // might move the selected block and into the initial stateif (selPcs.MoveDir != ""){//移动时做一个简单的动画处理MoveWithAnimation(selPcs, blkPcs);RefreshLayout();break; ;}}}}var tmpHasCode = GetMyHashCodeV1(gameState);_curHashCode = tmpHasCode;}

简单动画

说明：代码是在GPT给的代码基础上进行改写的。
利用Timer事件，每隔一段时间显示一个画面，并进行痕迹的擦除。使用了大量的成员变量进行传值，这样简化俩Timer函数参数问题。另外对鼠标事件的多次快速点击没有做处理，因此会有重入发生，导致效果有些混乱。
核心代码如下：

       internal void MovePcsWithAnimation(Piece selPcs, HrdPoint srcPos, HrdPoint dstPos, HrdPoint anotherPos, Piece emptySp, Piece anotherES){curSelPcs=selPcs;srcPcsHrdLoc = HrdPosToLoc(srcPos);targeHrdLocLst = new List<PointF>();if(selPcs.GetHrdType()==HRDGame.TYPE_SMALL_PIECE && Math.Abs(srcPos.X - dstPos.X)+Math.Abs(srcPos.Y-dstPos.Y) == 2){// need to move to the another piece first //anotherPos = new HrdPointHrdPosToLoc(dstPos);var anotherLoc =  HrdPosToLoc(anotherPos);targeHrdLocLst.Add(anotherLoc);}targeHrdLocLst.Add(HrdPosToLoc(dstPos));srcBkgdRect = new Rectangle((int)selPcs.PcsLoc.X, (int)selPcs.PcsLoc.Y, selPcs.PcsSize.Width, selPcs.PcsSize.Height);animotionLocLstIdx = 0;timerTuple.selPcs = selPcs;timerTuple.srcPos = srcPos;timerTuple.dstPos= dstPos;timerTuple.anotherPos= anotherPos;timerTuple.emptySp = emptySp;timerTuple.anotherES = anotherES;timer.Start(); // Start the animation}

timer事件调用 movePcs函数，函数没有优化，因此代码比较冗长。核心代码如下

       private void MovePcs(){int speed = 5; // Adjust the speed of the animation//Refresh the background ;//float oldX,oldY;Rectangle tailRec= new Rectangle(0,0,0,0);// used to clear the back ground if(animotionLocLstIdx>= targeHrdLocLst.Count){return;}var targeHrdLoc= targeHrdLocLst[animotionLocLstIdx];//计算移动后的棋子的坐标和大小，并计算移动后需要擦除的区域//#############################################if (srcPcsHrdLoc.X < targeHrdLoc.X){tailRec.X = (int)srcPcsHrdLoc.X;tailRec.Y = (int)srcPcsHrdLoc.Y;tailRec.Width = speed;tailRec.Height = curSelPcs.PcsSize.Height;srcPcsHrdLoc.X += speed;}else if ...}////#############################################// 根据上述计算结果，进行绘制curSelPcs.PcsLoc = srcPcsHrdLoc;var g=_ctrl.CreateGraphics();DrawRegularBox(g, curSelPcs);g.FillRectangle(new SolidBrush(Color.Gray), tailRec);//srcBkgdRect = tRec;if (Math.Abs(srcPcsHrdLoc.X - targeHrdLoc.X) <= 5 && Math.Abs(srcPcsHrdLoc.Y - targeHrdLoc.Y) <= 5){animotionLocLstIdx++;if (animotionLocLstIdx < targeHrdLocLst.Count && animotionLocLstIdx>0){var tLoc = targeHrdLocLst[animotionLocLstIdx-1];//curSelPcs pcs.PcsSize.Width,pcs.PcsSize.HeightsrcBkgdRect = new Rectangle((int)(tLoc.X), (int)(tLoc.Y), curSelPcs.PcsSize.Width, curSelPcs.PcsSize.Height);}//判断是否移动可以移动两步（一个正方形）if (animotionLocLstIdx >= targeHrdLocLst.Count){.....}}}

Timer 的初始化代码

       private void InitializeTimer(){timer = new System.Windows.Forms.Timer();timer.Interval = 10; // Adjust the interval based on the desired smoothnesstimer.Tick += Timer_Tick;}