public pis PlaceAPis(int x, int y, PisType_Enum type)
{
//TODO: 找到最近ㄉ節點(node)
Point nodeID = FindTheClosetNode(x, y);
//TODO: 如果沒有，回傳FALSE
if (nodeID == NO_MATCH_NODE)
{
return(null); //沒有物件
}
//TODO:如果有, 檢查是否已有旗子
if (pieces[nodeID.X, nodeID.Y] != null)//有棋子
{
return(null);
}
//根據Type,產生棋子
Point formPos = convertToFormPosition(nodeID);
if (type == PisType_Enum.BLACK)
{
pieces[nodeID.X, nodeID.Y] = new Blackpis(formPos.X, formPos.Y);
}
else if (type == PisType_Enum.WHITE)
{
pieces[nodeID.X, nodeID.Y] = new Whitepis(formPos.X, formPos.Y);
}
//紀錄最後下子的位置
lastPlacedNode = nodeID;
return(pieces[nodeID.X, nodeID.Y]);
}
public void CheckWinner()
{
int centerX = board.LastPlacedNode.X;
int centerY = board.LastPlacedNode.Y;
/*檢查8個不同方向
* Dir= -1 -1 往左下找
* Dir= -1 0 往左找
* Dir= -1 1 往左上找
* Dir= 1 -1 往右下找
* Dir= 1 0 往右找
* Dir= 1 1 往右上找
* Dir= 0 1 往上找
* Dir= 0 -1 往下找 */
for (int xDir = -1; xDir <= 1; xDir++)
{
for (int yDir = -1; yDir <= 1; yDir++)
{
//排除中間的情況
if (xDir == 0 && yDir == 0) //同時是0
{
continue; //跳過底下，繼續迴圈
}
//看最後一子附近有幾棵相同相連的棋子
int count = 1;
while (count < 5)
{
int targetX = centerX + count * xDir;
int targetY = centerY + count * yDir;
//檢查顏色是否相同
if (targetX < 0 || targetX >= board.NODE_COUNT ||
targetY < 0 || targetY >= board.NODE_COUNT ||
board.GetPisType(targetX, targetY) != currentPlayer_Enum)
{
break;
}
count++;
}
//若看到五子連珠
if (count == 5)
{
winner = currentPlayer_Enum;
}
}
}
}
public pis PlaceAPis(int x, int y) //Method Board 的 PlaceAPis
{
// return board.PlaceAPis(x, y);
pis piece = board.PlaceAPis(x, y, currentPlayer_Enum);
if (piece != null)
{
//檢查是否現在下棋的人獲勝
CheckWinner();
//交換使用者
if (currentPlayer_Enum == PisType_Enum.BLACK)
{
currentPlayer_Enum = PisType_Enum.WHITE;
}
else
{
currentPlayer_Enum = PisType_Enum.BLACK;
}
return(piece);
}
return(null);
}
public void RestartGame()
{
winner = PisType_Enum.NONE;
board.CleanBoard();
currentPlayer_Enum = PisType_Enum.BLACK;
}