/// <summary>
/// 玩家移动到指定位置.
/// </summary>
/// <param name="oldRow"></param>
/// <param name="oldCol"></param>
/// <param name="newRow"></param>
/// <param name="newCol"></param>
/// <returns></returns>
private bool PlayerMoveTo(int oldRow, int oldCol, int newRow, int newCol)
{
if ((WALL_FLAG & this.mazeItems[newRow, newCol]) != 0)
{
// 新的位置有墙.
return(false);
}
// 将原有位置，设置为用户离开.
this.mazeItems[oldRow, oldCol] = (byte)(this.mazeItems[oldRow, oldCol] & PLAYER_LEAVE_FLAG);
// 目标位置，设置为用户存在.
this.mazeItems[newRow, newCol] = (byte)(this.mazeItems[newRow, newCol] | PLAYER_FLAG);
// 调整用户当前位置.
playerRow = newRow;
playerCol = newCol;
if (Moving != null)
{
MoveStep ms = new MoveStep(oldRow, oldCol);
if (oldCol == newCol)
{
if (oldRow == newRow - 1)
{
// 下
Moving(ms, MoveDirection.Down);
}
else
{
// 上
Moving(ms, MoveDirection.Up);
}
}
else
{
if (oldCol == newCol - 1)
{
// 右
Moving(ms, MoveDirection.Right);
}
else
{
// 左
Moving(ms, MoveDirection.Left);
}
}
}
// 认为成功的移动了.
return(true);
}
/// <summary>
/// 开始.
/// </summary>
public void Start()
{
for (int i = 0; i < this.MazeRows; i++)
{
for (int j = 0; j < this.MazeColumns; j++)
{
if (this.mazeItems[i, j] == START_FLAG)
{
playerRow = i;
playerCol = j;
// 人安排到 开始的位置上.
this.mazeItems[i, j] = (byte)(this.mazeItems[i, j] | PLAYER_FLAG);
if (Moving != null)
{
MoveStep ms = new MoveStep(i, j);
Moving(ms, MoveDirection.None);
}
return;
}
}
}
}