public static CompareVector2_X Instance()
{
if (instance == null)
{
instance = new CompareVector2_X();
}
return(instance);
}
/// <summary>
/// 该棋子能移动的所有位置,返回的是平面二维坐标，如(0,0)、(3,5)、(6,6)等
/// </summary>
/// <returns></returns>
public override List <Vector2> CanMovePoints()
{
Vector2 currentPos = GameController.coords[transform.position];
List <Vector2> sameX_points = new List <Vector2>(); //存储与本棋子相同x坐标(同列)的其他棋子
List <Vector2> sameY_points = new List <Vector2>(); //存储与本棋子相同y坐标(同行)的其他棋子
List <Vector2> canMovePoints = new List <Vector2>();
for (int i = 0; i < GameController.chesses.Length; i++)
{
Vector2 otherChessPos = GameController.coords[GameController.chesses[i].transform.position];
if (otherChessPos.x == currentPos.x && otherChessPos.y != currentPos.y)
{
//有同列的棋子记录下来
sameX_points.Add(otherChessPos);
}
if (otherChessPos.y == currentPos.y && otherChessPos.x != currentPos.x)
{
//有同行的棋子也记录下来
sameY_points.Add(otherChessPos);
}
}
#region 多虑了
//sameX_points.Sort(CompareVector2_Y.Instance().Compare);
//sameY_points.Sort((a, b) =>
// {
// int result = 0;
// if (a.x > b.x)
// result = 1;
// else if (a.x < b.x)
// result = -1;
// return result;
// });
sameY_points.Sort(CompareVector2_X.Instance().Compare);
//foreach (Vector2 p in sameY_points)
//{
// Debug.Log(p + " 时间: " + Time.time);
//}
#endregion
//若车线上没有棋子，则可以走17个点
if (sameX_points.Count == 0 && sameY_points.Count == 0)
{
for (int i = 0; i < 9; i++)
{
if (i != currentPos.x)
{
canMovePoints.Add(new Vector2(i, currentPos.y));
}
}
for (int j = 0; j < 10; j++)
{
if (j != currentPos.y)
{
canMovePoints.Add(new Vector2(currentPos.x, j));
}
}
}
else//同行或同列有棋子，那么在上下左右方选最靠近自身棋子的位置为可移动界限，还要再分辨是哪方棋子
{
float upBorder = 9;
float downBorder = 0;
float leftBorder = 0;
float rightBorder = 8;
for (int i = 0; i < sameX_points.Count; i++)
{
if (sameX_points[i].y > currentPos.y) //若其他棋子在上方
{
if (upBorder > sameX_points[i].y)
{
upBorder = (int)sameX_points[i].y; //上边界不断降低
}
}
if (sameX_points[i].y < currentPos.y) //若其他棋子在下方
{
if (downBorder < sameX_points[i].y)
{
downBorder = (int)sameX_points[i].y;//下边界不断上升
}
}
}
for (int j = 0; j < sameY_points.Count; j++)
{
if (sameY_points[j].x < currentPos.x) //若其他棋子在左方
{
if (leftBorder < sameY_points[j].x)
{
leftBorder = (int)sameY_points[j].x; //左边界不断向右缩进
}
}
if (sameY_points[j].x > currentPos.x) //若其他棋子在右方
{
if (rightBorder > sameY_points[j].x)
{
rightBorder = (int)sameY_points[j].x;//右边界不断向左缩进
}
}
}
//可移动边界获取好了，还要判断是否为空(即边界还是初始值时要注意)和为开闭区间，即红方还是黑方的棋子
Vector2 cu = new Vector2(currentPos.x, upBorder);
if (GameController.vector2Chesse.ContainsKey(cu))
{
GameObject cuChesses = GameController.vector2Chesse[new Vector2(currentPos.x, upBorder)];
//首先要判断边界处的棋子是否不等于自身？
//若上边界处有棋子并且是己方棋，那就是开区间,否则是闭区间
if (cuChesses != gameObject && cuChesses.GetComponent <ChessCamp>().camp == GetComponent <ChessCamp>().camp)
{
upBorder = upBorder - 1;
}
}
Vector2 cd = new Vector2(currentPos.x, downBorder);
if (GameController.vector2Chesse.ContainsKey(new Vector2(currentPos.x, downBorder)))
{
GameObject cdChesses = GameController.vector2Chesse[new Vector2(currentPos.x, downBorder)];
if (cdChesses != gameObject && cdChesses.GetComponent <ChessCamp>().camp == GetComponent <ChessCamp>().camp)
{
downBorder = downBorder + 1;
}
}
Vector2 lc = new Vector2(leftBorder, currentPos.y);
if (GameController.vector2Chesse.ContainsKey(lc))
{
GameObject lcChesse = GameController.vector2Chesse[new Vector2(leftBorder, currentPos.y)];
if (lcChesse != gameObject && lcChesse.GetComponent <ChessCamp>().camp == GetComponent <ChessCamp>().camp)
{
leftBorder = leftBorder + 1;
}
}
Vector2 rc = new Vector2(rightBorder, currentPos.y);
if (GameController.vector2Chesse.ContainsKey(rc))
{
GameObject rcChesse = GameController.vector2Chesse[new Vector2(rightBorder, currentPos.y)];
if (rcChesse != gameObject && rcChesse.GetComponent <ChessCamp>().camp == GetComponent <ChessCamp>().camp)
{
rightBorder = rightBorder - 1;
}
}
//最后还要给canMovePoints赋值
for (int i = (int)leftBorder; i <= rightBorder; i++)
{
if (i != currentPos.x)
{
canMovePoints.Add(new Vector2(i, currentPos.y));
}
}
for (int j = (int)downBorder; j <= upBorder; j++)
{
if (j != currentPos.y)
{
canMovePoints.Add(new Vector2(currentPos.x, j));
}
}
}
return(canMovePoints);
}
