void getmovesn(int f, int r, int c)
{
int i, nf, nr;
int o;
chesspiece p;
square s1;
s1 = SQ(f,r);
o = opp(c);
for (i=0;i<8;i++)
{
nf = f+df[i];
nr = r+dr[i];
if (offboardp(nf,nr))
continue;
p = getpiece(nf, nr);
if (!p || (c != chesspiececolor(p)))
{
pushmove(MV(s1, SQ(nf, nr)));
}
}
}
void getsliders(int f, int r, int df, int dr, int color)
{
square s1 = SQ(f,r);
chesspiece p;
for (;;)
{
f += df;
r += dr;
if (offboardp(f,r)) return;
p = getpiece(f,r);
if (p == empty)
pushmove(MV(s1, SQ(f,r)));
else if (chesspiececolor(p)==color)
return;
else
{
pushmove(MV(s1, SQ(f,r)));
return;
}
}
}
void gensliderattacks(int f, int r, int df, int dr, int color)
{
chesspiece p;
square s1=SQ(f,r);
for (;;)
{
f += df;
r += dr;
if (offboardp (f,r)) return;
p = getpiece(f,r);
if (p)
{
if (chesspiececolor(p) != color)
{
pushmove(MV(s1, SQ(f,r)));
return;
}
return;
}
}
}
void getmovesk_nocastles(int f, int r, int c)
{
int df, dr, nf, nr;
int o;
chesspiece p;
square s1 = SQ(f,r);
o = opp(c);
for (df=-1;df<2;df++)
for (dr=-1;dr<2;dr++)
{
if (!df && !dr) continue;
nf = f+df;
nr = r+dr;
p = getpiece(nf, nr);
if (!offboardp(nf, nr) && (!p || (c != chesspiececolor(p))))
pushmove(MV(s1, SQ(nf, nr)));
}
}
move easydecode(char *str)
{
if (!strcmp(str,"o")||!strcmp(str,"o-o")||
!strcmp(str,"0-0")||!strcmp("O-O",str))
{
return (tomove() == WHITE) ? WKC : BKC;
}
if (!strcmp(str,"o-")||!strcmp(str,"o-o-o")||
!strcmp(str,"0-0-0")||!strcmp("O-O-O",str))
{
return (tomove() == WHITE) ? WQC : BQC;
}
strip(str);
if (strlen(str)==5)
{
/* assume this is the form a7a8q */
/* get promo and remove from string */
chesspiece p = lookup(str[4]);
promopiece = chesspiecevalue(p);
if ((promopiece<=0)||(promopiece>king))
return dummymove;
str[4]=0;
}
/* e4 */
if (strlen(str)==2)
{
int ef, er;
square s1, s2;
ef = str[0]-'a';
er = str[1]-'1';
if (strchr("abcdefgh", str[0]) &&
strchr("abcdefgh", str[1]))
{
return decode_pawn_cap(str);
}
if (offboardp(ef, er))
return dummymove;
s2 = SQ(ef,er);
s1 = findstart(makepiece(tomove(), pawn), ef, er, 8, 8);
return MV(s1,s2);
}
/* Pe4 ab4 */
if (strlen(str)==3)
{
int sf, ef, er;
square s1 = dummymove, s2;
ef = str[1]-'a';
er = str[2]-'1';
if (offboardp(ef, er))
return dummymove;
s2 = SQ(ef,er);
if (str[0]=='b')
{
/* if its a valid pawn move it,
else look for valid Bishop move
*/
int v = chesspiecevalue(lookup(str[0]));
sf = str[0] - 'a';
s1 = findstart(makepiece(tomove(), pawn), ef, er, sf, 8);
if (s1!=dummysq)
{
return MV(s1,s2);
}
else if (v)
{
s1 = findstart(makepiece(tomove(), v), ef, er, 8, 8);
return MV(s1,s2);
}
else
return dummysq;
}
else if (lookup(str[0]))
{
int v = chesspiecevalue(lookup(str[0]));
s1 = findstart(makepiece(tomove(), v), ef, er, 8, 8);
}
else
{
sf = str[0] - 'a';
s1 = findstart(makepiece(tomove(), pawn), ef, er, sf, 8);
}
return (MV(s1,s2));
}
/* e2e4 Nbd7 N8d7*/
else if (strlen(str)==4)
{
int sf, sr, ef, er, v;
square s1, s2;
sf = str[0]-'a';
sr = str[1]-'1';
ef = str[2]-'a';
er = str[3]-'1';
if (offboardp(ef, er))
return dummymove;
if (!offboardp(sf, sr))
return MV(SQ(sf,sr),SQ(ef,er));
s2 = SQ(ef, er);
s1 = SQ(sf, sr);
switch (str[0])
{
case 'P': case 'p':
case 'N': case 'n':
case 'B': case 'b':
case 'R': case 'r':
case 'Q': case 'q':
case 'K': case 'k':
sf = str[1]-'a';
sr = str[1]-'1';
v = chesspiecevalue(lookup(str[0]));
if ((sf>=0)&&(sf<=7))
{
s1 = findstart(makepiece(tomove(), v), ef, er, sf, 8);
return MV(s1, s2);
}
else
{
s1 = findstart(makepiece(tomove(), v), ef, er, 8, sr);
return MV(s1, s2);
}
default:
return dummymove;
}
}
else
return dummymove;
}
void getmovesk(int f, int r, int c)
{
int df, dr, nf, nr;
int o;
chesspiece p;
square s1 = SQ(f,r);
o = opp(c);
for (df=-1; df<2; df++)
for (dr=-1; dr<2; dr++)
{
if (!df && !dr) continue;
nf = f+df;
nr = r+dr;
p = getpiece(nf, nr);
if (!offboardp(nf, nr) && (!p || (c != chesspiececolor(p))))
pushmove(MV(s1, SQ(nf, nr)));
}
if (c==WHITE)
{
if (wqcastlep()&&
!getpiece__(D1)&&
!getpiece__(C1)&&
!getpiece__(B1)&&
!incheckp(c)&&
!wouldbeincheckp(THRUWQ))
{
pushmove(WQC);
}
if (wkcastlep()&&
!getpiece__(F1)&&
!getpiece__(G1)&&
!incheckp(c)&&
!wouldbeincheckp(THRUWK))
{
pushmove(WKC);
}
}
else
{
if (bqcastlep()&&
!getpiece__(D8)&&
!getpiece__(C8)&&
!getpiece__(B8)&&
!incheckp(c)&&
!wouldbeincheckp(THRUBQ))
{
pushmove(BQC);
}
if (bkcastlep()&&
!getpiece__(F8)&&
!getpiece__(G8)&&
!incheckp(c)&&
!wouldbeincheckp(THRUBK))
{
pushmove(BKC);
}
}
}
