📄 checkforbidden.cs
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using System;
using System.Collections.Generic;
using System.Text;
namespace gobang
{
class CheckForbidden
{
public const int NO_FORBIDDEN = 0;
public const int THREE_THREE_FORBIDDEN = 1;
public const int FOUR_FOUR_FORBIDDEN = 2;
public const int LONG_FORBIDDEN = 3;
private const int NONE = 0;
private const int BLACK = 1;
private const int WHITE = 2;
public int fobiddenCheck(int[][] chessboard, int x, int y)
{
int[] adjsame = new int[8];
int[] adjempty = new int[8];
int[] jumpsame = new int[8];
int[] jumpempty = new int[8];
int[] jumpjumpsame = new int[8];
for (int i = 0; i < 8; i++)
{
adjsame[i] = adjempty[i] = jumpempty[i] = jumpjumpsame[i] = jumpsame[i] = 0;
}
chessboard[x][y] = BLACK;
int _x, _y;
for (_y = y - 1; _y >= 0 && chessboard[x][_y] == BLACK; _y--, adjsame[0]++) ;
for (; _y >= 0 && chessboard[x][_y] == NONE; _y--, adjempty[0]++) ;
for (; _y >= 0 && chessboard[x][_y] == BLACK; _y--, jumpsame[0]++) ;
for (; _y >= 0 && chessboard[x][_y] == NONE; _y--, jumpempty[0]++) ;
for (; _y >= 0 && chessboard[x][_y] == BLACK; _y--, jumpjumpsame[0]++) ;
for (_x = x + 1, _y = y - 1; _x < 15 && _y >= 0 && chessboard[_x][_y] == BLACK; _x++, _y--, adjsame[1]++) ;
for (; _x < 15 && _y >= 0 && chessboard[_x][_y] == NONE; _x++, _y--, adjempty[1]++) ;
for (; _x < 15 && _y >= 0 && chessboard[_x][_y] == BLACK; _x++, _y--, jumpsame[1]++) ;
for (; _x < 15 && _y >= 0 && chessboard[_x][_y] == NONE; _x++, _y--, jumpempty[1]++) ;
for (; _x < 15 && _y >= 0 && chessboard[_x][_y] == BLACK; _x++, _y--, jumpjumpsame[1]++) ;
for (_x = x + 1; _x < 15 && chessboard[_x][y] == BLACK; _x++, adjsame[2]++) ;
for (; _x < 15 && chessboard[_x][y] == NONE; _x++, adjempty[2]++) ;
for (; _x < 15 && chessboard[_x][y] == BLACK; _x++, jumpsame[2]++) ;
for (; _x < 15 && chessboard[_x][y] == NONE; _x++, jumpempty[2]++) ;
for (; _x < 15 && chessboard[_x][y] == BLACK; _x++, jumpjumpsame[2]++) ;
for (_x = x + 1, _y = y + 1; _x < 15 && _y < 15 && chessboard[_x][_y] == BLACK; _x++, _y++, adjsame[3]++) ;
for (; _x < 15 && _y < 15 && chessboard[_x][_y] == NONE; _x++, _y++, adjempty[3]++) ;
for (; _x < 15 && _y < 15 && chessboard[_x][_y] == BLACK; _x++, _y++, jumpsame[3]++) ;
for (; _x < 15 && _y < 15 && chessboard[_x][_y] == NONE; _x++, _y++, jumpempty[3]++) ;
for (; _x < 15 && _y < 15 && chessboard[_x][_y] == BLACK; _x++, _y++, jumpjumpsame[3]++) ;
for (_y = y + 1; _y < 15 && chessboard[x][_y] == BLACK; _y++, adjsame[4]++) ;
for (; _y < 15 && chessboard[x][_y] == NONE; _y++, adjempty[4]++) ;
for (; _y < 15 && chessboard[x][_y] == BLACK; _y++, jumpsame[4]++) ;
for (; _y < 15 && chessboard[x][_y] == NONE; _y++, jumpempty[4]++) ;
for (; _y < 15 && chessboard[x][_y] == BLACK; _y++, jumpjumpsame[4]++) ;
for (_x = x - 1, _y = y + 1; _x >=0 && _y < 15 && chessboard[_x][_y] == BLACK; _x--, _y++, adjsame[5]++) ;
for (; _x >= 0 && _y < 15 && chessboard[_x][_y] == NONE; _x--, _y++, adjempty[5]++) ;
for (; _x >= 0 && _y < 15 && chessboard[_x][_y] == BLACK; _x--, _y++, jumpsame[5]++) ;
for (; _x >= 0 && _y < 15 && chessboard[_x][_y] == NONE; _x--, _y++, jumpempty[5]++) ;
for (; _x >= 0 && _y < 15 && chessboard[_x][_y] == BLACK; _x--, _y++, jumpjumpsame[5]++) ;
for (_x = x - 1; _x >= 0 && chessboard[_x][y] == BLACK; _x--, adjsame[6]++) ;
for (; _x >= 0 && chessboard[_x][y] == NONE; _x--, adjempty[6]++) ;
for (; _x >= 0 && chessboard[_x][y] == BLACK; _x--, jumpsame[6]++) ;
for (; _x >= 0 && chessboard[_x][y] == NONE; _x--, jumpempty[6]++) ;
for (; _x >= 0 && chessboard[_x][y] == BLACK; _x--, jumpjumpsame[6]++) ;
for (_x = x - 1, _y = y - 1; _x >= 0 && _y >= 0 && chessboard[_x][_y] == BLACK; _x--, _y--, adjsame[7]++) ;
for (; _x >= 0 && _y >= 0 && chessboard[_x][_y] == NONE; _x--, _y--, adjempty[7]++) ;
for (; _x >= 0 && _y >= 0 && chessboard[_x][_y] == BLACK; _x--, _y--, jumpsame[7]++) ;
for (; _x >= 0 && _y >= 0 && chessboard[_x][_y] == NONE; _x--, _y--, jumpempty[7]++) ;
for (; _x >= 0 && _y >= 0 && chessboard[_x][_y] == BLACK; _x--, _y--, jumpjumpsame[7]++) ;
chessboard[x][y] = NONE;
for (int i = 0; i < 4; i++)
{
if (adjsame[i] + adjsame[i + 4] == 4)
return NO_FORBIDDEN;
}
int threecount = 0, fourcount = 0;
for (int i = 0; i < 4; i++)
{
if (adjsame[i] + adjsame[i + 4] >= 5)
return LONG_FORBIDDEN;
else if (adjsame[i] + adjsame[i + 4] == 3)
{
bool isFour = false;
if (adjempty[i] > 0)
{
if (keyPointForbiddenCheck(chessboard, x, y, adjsame[i], i) == NO_FORBIDDEN)
isFour = true;
}
if (adjempty[i + 4] > 0)
{
if (keyPointForbiddenCheck(chessboard, x, y, adjsame[i+4], i+4) == NO_FORBIDDEN)
isFour = true;
}
if (isFour)
fourcount++;
}
else if (adjsame[i] + adjsame[i + 4] == 2)
{
if (adjempty[i] == 1 && jumpsame[i] == 1)
{
if (keyPointForbiddenCheck(chessboard, x, y, adjsame[i], i) == NO_FORBIDDEN)
fourcount++;
}
if (adjempty[i + 4] == 1 && jumpsame[i + 4] == 1)
{
if (keyPointForbiddenCheck(chessboard, x, y, adjsame[i + 4], i + 4) == NO_FORBIDDEN)
fourcount++;
}
bool isThree = false;
if ((adjempty[i] > 2 || adjempty[i] == 2 && jumpsame[i] == 0) && (adjempty[i + 4] > 1 || adjempty[i + 4] == 1 && jumpsame[i + 4] == 0))
{
if (keyPointForbiddenCheck(chessboard, x, y, adjsame[i], i) == NO_FORBIDDEN)
isThree = true;
}
if ((adjempty[i + 4] > 2 || adjempty[i + 4] == 2 && jumpsame[i + 4] == 0) && (adjempty[i] > 1 || adjempty[i] == 1 && jumpsame[i] == 0))
{
if (keyPointForbiddenCheck(chessboard, x, y, adjsame[i + 4], i + 4) == NO_FORBIDDEN)
isThree = true;
}
if (isThree)
threecount++;
}
else if (adjsame[i] + adjsame[i + 4] == 1)
{
if (adjempty[i] == 1 && jumpsame[i] == 2)
{
if (keyPointForbiddenCheck(chessboard, x, y, adjsame[i], i) == NO_FORBIDDEN)
fourcount++;
}
if (adjempty[i + 4] == 1 && jumpsame[i + 4] == 2)
{
if (keyPointForbiddenCheck(chessboard, x, y, adjsame[i + 4], i + 4) == NO_FORBIDDEN)
fourcount++;
}
if (adjempty[i] == 1 && jumpsame[i] == 1 && (jumpempty[i] > 1 || jumpempty[i] == 1 && jumpjumpsame[i] == 0)
&& (adjempty[i + 4] > 1 || adjempty[i + 4] == 1 && jumpsame[i + 4] == 0))
{
if (keyPointForbiddenCheck(chessboard, x, y, adjsame[i], i) == NO_FORBIDDEN)
threecount++;
}
if (adjempty[i + 4] == 1 && jumpsame[i + 4] == 1 && (jumpempty[i + 4] > 1 || jumpempty[i + 4] == 1 && jumpjumpsame[i + 4] == 0)
&& (adjempty[i] > 1 || adjempty[i] == 1 && jumpsame[i] == 0))
{
if (keyPointForbiddenCheck(chessboard, x, y, adjsame[i + 4], i + 4) == NO_FORBIDDEN)
threecount++;
}
}
else if (adjsame[i] + adjsame[i + 4] == 0)
{
if (adjempty[i] == 1 && jumpsame[i] == 3)
{
if (keyPointForbiddenCheck(chessboard, x, y, adjsame[i], i) == NO_FORBIDDEN)
fourcount++;
}
if (adjempty[i + 4] == 1 && jumpsame[i + 4] == 3)
{
if (keyPointForbiddenCheck(chessboard, x, y, adjsame[i + 4], i + 4) == NO_FORBIDDEN)
fourcount++;
}
if (adjempty[i] == 1 && jumpsame[i] == 2 && (jumpempty[i] > 1 || jumpempty[i] == 1 && jumpjumpsame[i] == 0)
&& (adjempty[i + 4] > 1 || adjempty[i + 4] == 1 && jumpsame[i + 4] == 0))
{
if (keyPointForbiddenCheck(chessboard, x, y, adjsame[i], i) == NO_FORBIDDEN)
threecount++;
}
if (adjempty[i + 4] == 1 && jumpsame[i + 4] == 2 && (jumpempty[i + 4] > 1 || jumpempty[i + 4] == 1 && jumpjumpsame[i + 4] == 0)
&& (adjempty[i] > 1 || adjempty[i] == 1 && jumpsame[i] == 0))
{
if (keyPointForbiddenCheck(chessboard, x, y, adjsame[i + 4], i + 4) == NO_FORBIDDEN)
threecount++;
}
}
}
if (fourcount > 1)
return FOUR_FOUR_FORBIDDEN;
if (threecount > 1)
return THREE_THREE_FORBIDDEN;
return NO_FORBIDDEN;
}
private int keyPointForbiddenCheck(int[][] chessboard, int x, int y, int adjsame, int direction)
{
int i, j;
adjsame++;
if (direction >= 4)
adjsame = -adjsame;
switch (direction % 4)
{
case 0:
i = x;
j = y - adjsame;
break;
case 1:
i = x + adjsame;
j = y - adjsame;
break;
case 2:
i = x + adjsame;
j = y;
break;
default:
i = x + adjsame;
j = y + adjsame;
break;
}
chessboard[x][y] = BLACK;
chessboard[i][j] = BLACK;
int result = fobiddenCheck(chessboard, i, j);
chessboard[x][y] = NONE;
chessboard[i][j] = NONE;
return result;
}
}
}
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