public void DoMove(Puzzle b)
{
DoMove(b, r1, c1, r2, c2);
}
internal void UndoMove(Puzzle b)
{
b.board[r1][c1].piece = b.board[r2][c2].piece;
b.board[r2][c2].piece = captured;
}
public Move DoMove(Puzzle b, int rFrom, int cFrom, int rTo, int cTo)
{
r1 = rFrom;
c1 = cFrom;
r2 = rTo;
c2 = cTo;
//printf("Target content: %c\n", b.board[rTo][cTo].piece);
capturer = b.board[rFrom][cFrom].piece;
captured = b.board[rTo][cTo].piece;
if (captured == ' ')
{
return(null);
}
switch (b.board[rFrom][cFrom].piece)
{
case 'P':
if (rTo >= 0 && rTo == rFrom - 1 && cTo >= 0 && cTo < Puzzle.SIZE)
{
Field target = null;
if (b.board[rFrom][cFrom].ne.c == cTo)
{
target = b.board[rFrom][cFrom].ne;
}
else if (b.board[rFrom][cFrom].nw.c == cTo)
{
target = b.board[rFrom][cFrom].nw;
}
else if (b.board[rFrom][cFrom].n.c == cTo && b.board[rFrom][cFrom].n.piece == ' ')
{
target = b.board[rFrom][cFrom].n;
}
if (target != null)
{
target.piece = b.board[rFrom][cFrom].piece;
b.board[rFrom][cFrom].piece = ' ';
return(this);
}
return(null);
}
break;
case 'p':
break;
case 'n':
case 'N':
if (rTo >= 0 && rTo < Puzzle.SIZE && cTo >= 0 && cTo < Puzzle.SIZE)
{
Field target = null;
if (b.board[rFrom][cFrom].n.n.e.c == cTo && b.board[rFrom][cFrom].n.n.e.r == rTo)
{
target = b.board[rFrom][cFrom].n.n.e;
}
else if (b.board[rFrom][cFrom].n.e.e.c == cTo && b.board[rFrom][cFrom].n.e.e.r == rTo)
{
target = b.board[rFrom][cFrom].n.e.e;
}
else if (b.board[rFrom][cFrom].n.w.w.c == cTo && b.board[rFrom][cFrom].n.w.w.r == rTo)
{
target = b.board[rFrom][cFrom].n.w.w;
}
else if (b.board[rFrom][cFrom].n.n.w.c == cTo && b.board[rFrom][cFrom].n.n.w.r == rTo)
{
target = b.board[rFrom][cFrom].n.n.w;
}
else if (b.board[rFrom][cFrom].w.w.n.c == cTo && b.board[rFrom][cFrom].w.w.n.r == rTo)
{
target = b.board[rFrom][cFrom].w.w.n;
}
else if (b.board[rFrom][cFrom].w.w.s.c == cTo && b.board[rFrom][cFrom].w.w.s.r == rTo)
{
target = b.board[rFrom][cFrom].w.w.s;
}
else if (b.board[rFrom][cFrom].s.s.e.c == cTo && b.board[rFrom][cFrom].s.s.e.r == rTo)
{
target = b.board[rFrom][cFrom].s.s.e;
}
else if (b.board[rFrom][cFrom].s.s.w.c == cTo && b.board[rFrom][cFrom].s.s.w.r == rTo)
{
target = b.board[rFrom][cFrom].s.s.w;
}
else if (b.board[rFrom][cFrom].w.w.s.c == cTo && b.board[rFrom][cFrom].w.w.s.r == rTo)
{
target = b.board[rFrom][cFrom].w.w.s;
}
else if (b.board[rFrom][cFrom].w.w.n.c == cTo && b.board[rFrom][cFrom].w.w.n.r == rTo)
{
target = b.board[rFrom][cFrom].w.w.n;
}
else if (b.board[rFrom][cFrom].s.e.e.c == cTo && b.board[rFrom][cFrom].s.e.e.r == rTo)
{
target = b.board[rFrom][cFrom].s.e.e;
}
else if (b.board[rFrom][cFrom].s.w.w.c == cTo && b.board[rFrom][cFrom].s.w.w.r == rTo)
{
target = b.board[rFrom][cFrom].s.w.w;
}
if (target != null)
{
target.piece = b.board[rFrom][cFrom].piece;
b.board[rFrom][cFrom].piece = ' ';
return(this);
}
return(null);
}
break;
case 'q':
case 'Q':
if (rTo >= 0 && rTo < Puzzle.SIZE && cTo >= 0 && cTo < Puzzle.SIZE)
{
Field target = null;
target = b.board[rFrom][cFrom];
if (rTo > rFrom && cTo > cFrom)
{
while (target.se != b.board[rTo][cTo])
{
target = target.se;
if (target == b.offboard || target.piece != ' ')
{
return(null);
}
}
}
else if (rTo > rFrom && cTo == cFrom)
{
while (target.s != b.board[rTo][cTo])
{
target = target.s;
if (target == b.offboard || target.piece != ' ')
{
return(null);
}
}
}
else if (rTo == rFrom && cTo > cFrom)
{
while (target.e != b.board[rTo][cTo])
{
target = target.e;
if (target == b.offboard || target.piece != ' ')
{
return(null);
}
}
}
else if (rTo < rFrom && cTo == cFrom)
{
while (target.n != b.board[rTo][cTo])
{
target = target.n;
if (target == b.offboard || target.piece != ' ')
{
return(null);
}
}
}
else if (rTo > rFrom && cTo < cFrom)
{
while (target.sw != b.board[rTo][cTo])
{
target = target.sw;
if (target == b.offboard || target.piece != ' ')
{
return(null);
}
}
}
else if (rTo == rFrom && cTo < cFrom)
{
while (target.w != b.board[rTo][cTo])
{
target = target.w;
if (target == b.offboard || target.piece != ' ')
{
return(null);
}
}
}
else if (rTo < rFrom && cTo < cFrom)
{
while (target.nw != b.board[rTo][cTo])
{
target = target.nw;
if (target == b.offboard || target.piece != ' ')
{
return(null);
}
}
}
else if (rTo < rFrom && cTo > cFrom)
{
while (target.ne != b.board[rTo][cTo])
{
target = target.ne;
if (target == b.offboard || target.piece != ' ')
{
return(null);
}
}
}
target = b.board[rTo][cTo];
target.piece = b.board[rFrom][cFrom].piece;
b.board[rFrom][cFrom].piece = ' ';
return(this);
}
break;
case 'b':
case 'B':
if (rTo >= 0 && rTo < Puzzle.SIZE && cTo >= 0 && cTo < Puzzle.SIZE)
{
Field target = null;
target = b.board[rFrom][cFrom];
if (rTo > rFrom && cTo > cFrom)
{
while (target.se != b.board[rTo][cTo])
{
target = target.se;
if (target == b.offboard || target.piece != ' ')
{
return(null);
}
}
}
else if (rTo > rFrom && cTo < cFrom)
{
while (target.sw != b.board[rTo][cTo])
{
target = target.sw;
if (target == b.offboard || target.piece != ' ')
{
return(null);
}
}
}
else if (rTo < rFrom && cTo < cFrom)
{
while (target.nw != b.board[rTo][cTo])
{
target = target.nw;
if (target == b.offboard || target.piece != ' ')
{
return(null);
}
}
}
else if (rTo < rFrom && cTo > cFrom)
{
while (target.ne != b.board[rTo][cTo])
{
target = target.ne;
if (target == b.offboard || target.piece != ' ')
{
return(null);
}
}
}
else
{
return(null);
}
target = b.board[rTo][cTo];
target.piece = b.board[rFrom][cFrom].piece;
b.board[rFrom][cFrom].piece = ' ';
return(this);
}
break;
case 'r':
case 'R':
if (rTo >= 0 && rTo < Puzzle.SIZE && cTo >= 0 && cTo < Puzzle.SIZE)
{
Field target = null;
target = b.board[rFrom][cFrom];
if (rTo > rFrom && cTo == cFrom)
{
while (target.s != b.board[rTo][cTo])
{
target = target.s;
if (target == b.offboard || target.piece != ' ')
{
return(null);
}
}
}
else if (rTo == rFrom && cTo > cFrom)
{
while (target.e != b.board[rTo][cTo])
{
target = target.e;
if (target == b.offboard || target.piece != ' ')
{
return(null);
}
}
}
else if (rTo < rFrom && cTo == cFrom)
{
while (target.n != b.board[rTo][cTo])
{
target = target.n;
if (target == b.offboard || target.piece != ' ')
{
return(null);
}
}
}
else if (rTo == rFrom && cTo < cFrom)
{
while (target.w != b.board[rTo][cTo])
{
target = target.w;
if (target == b.offboard || target.piece != ' ')
{
return(null);
}
}
}
else
{
return(null);
}
target = b.board[rTo][cTo];
target.piece = b.board[rFrom][cFrom].piece;
b.board[rFrom][cFrom].piece = ' ';
return(this);
}
break;
case 'k':
case 'K':
if (rTo >= 0 && rTo < Puzzle.SIZE && cTo >= 0 && cTo < Puzzle.SIZE)
{
Field target = null;
target = b.board[rTo][cTo];
if (target != null && (target.ne == b.board[rFrom][cFrom] || target.e == b.board[rFrom][cFrom] || target.se == b.board[rFrom][cFrom] || target.s == b.board[rFrom][cFrom] || target.sw == b.board[rFrom][cFrom] || target.w == b.board[rFrom][cFrom] || target.nw == b.board[rFrom][cFrom] || target.n == b.board[rFrom][cFrom]))
{
target.piece = b.board[rFrom][cFrom].piece;
b.board[rFrom][cFrom].piece = ' ';
return(this);
}
return(null);
}
break;
default:
return(null);
}
return(null);
}
