bool Board::move(int cFrom,int rFrom,int cTo,int rTo) {
const Cell *cellFrom = this->cellAt(cFrom,rFrom);
const Cell *cellTo = this->cellAt(cTo,rTo);
if( !cellFrom || !cellTo )
return false;
Figure *fig = (Figure*)this->at(cFrom,rFrom);
Figure *target = (Figure*)this->at(cTo,rTo);
if( !fig || this->onMove != fig->getColor() || !fig->isValid(cellFrom,cellTo,this) )
return false;
bool playerUnderAttack = this->isUnderAttack(this->onMove);
const Pawn *pwn;
const King *king;
if( pwn = dynamic_cast<const Pawn *>(fig) ) {
// check for pawn special moves
if( rTo == 0 || rTo == 7 ) {
// promotion
}
if( cFrom != cTo && !target) {
// en passant
const Figure *tmp = this->at(cTo,rFrom);
this->field[cFrom][rFrom] = NULL;
this->field[cTo][rFrom] = NULL;
this->field[cTo][rTo] = fig;
if( playerUnderAttack && this->isUnderAttack(this->onMove) ) {
// did not protect -> undo move
this->field[cFrom][rFrom] = this->field[cTo][rTo];
this->field[cTo][rTo] = NULL;
this->field[cTo][rFrom] = (Figure*)tmp;
return false;// failed en passant
} else {
this->onMove = (ChessColor)(-1*(int)this->onMove);
fig->doMove();
delete tmp;
return true; // succesful en passant
}
}
} else if( (king = dynamic_cast<const King *>(fig)) && abs(cFrom-cTo) == 2) {// if move is valid and it is more than 1 space long -> castle
// move king
this->field[cTo][rTo] = this->field[cFrom][rFrom];
this->field[cFrom][rFrom] = NULL;
// move rook
if ( cFrom > cTo ) {
if ( fig->isWhite() ) {
this->field[0][3] = this->field[0][0];
this->field[0][0] = NULL;
} else {
this->field[7][3] = this->field[0][7];
this->field[7][0] = NULL;
}
} else {
if( fig->isWhite() ) {
this->field[0][5] = this->field[0][7];
this->field[0][7] = NULL;
} else {
this->field[7][5] = this->field[7][7];
this->field[7][7] = NULL;
}
}
this->onMove = (ChessColor)(-1*(int)this->onMove);
fig->doMove();
return true;
// no need to check for check state as castle is not valid when checked
}
this->field[cTo][rTo] = fig;
this->field[cFrom][rFrom] = NULL;
if( playerUnderAttack && this->isUnderAttack(this->onMove) ) {
// did not protect -> undo move
this->field[cFrom][rFrom] = fig;
this->field[cTo][rTo] = target;
return false;
} else {
this->onMove = (ChessColor)(-1*(int)this->onMove);
fig->doMove();
return true;
}
}
bool Board::move(int cFrom,int rFrom,int cTo,int rTo) {
if( cFrom < 0 || cFrom >= Board::_bSize || rFrom < 0 || rFrom >= Board::_bSize || cTo < 0
|| cTo >= Board::_bSize || rTo < 0 || rTo > Board::_bSize)
return false;
const Cell *cellFrom = this->cellAt(cFrom,rFrom);
const Cell *cellTo = this->cellAt(cTo,rTo);
if( !cellFrom || !cellTo )
return false;
Figure *fig = this->field[cFrom][rFrom];
Figure *target = this->field[cTo][rTo];
if( !fig || this->onMove != fig->getColor() || !fig->isValid(cellFrom,cellTo,this) )
return false;
const Pawn *pwn;
const King *king;
if( pwn = dynamic_cast<const Pawn *>(fig) ) {
// check for pawn special moves
if( rTo == 0 || rTo == 7 ) {
// promotion
Figure *prom;
if(false && this->getPromotionPick )
prom = this->getPromotionPick(this);
else
prom = new Queen(this->onMove);
Figure *tmp = this->field[cTo][rTo];
this->field[cFrom][rFrom] = NULL;
this->field[cTo][rTo] = prom;
if( this->isUnderAttack(this->onMove) ) {
// can't move into check
this->field[cFrom][rFrom] = fig;
this->field[cTo][rTo] = tmp;
delete prom;
return false;
} else {
delete fig;
delete tmp;
this->onMove = Board::flipColor(this->onMove);
return true;
}
}
if( cFrom != cTo && !target) {
// en passant
const Figure *tmp = this->at(cTo,rFrom);
this->field[cFrom][rFrom] = NULL;
this->field[cTo][rFrom] = NULL;
this->field[cTo][rTo] = fig;
if( this->isUnderAttack(this->onMove) ) {
// can't move into check
this->field[cFrom][rFrom] = this->field[cTo][rTo];
this->field[cTo][rTo] = NULL;
this->field[cTo][rFrom] = (Figure*)tmp;
return false;// failed en passant
} else {
this->onMove = Board::flipColor(this->onMove);
fig->doMove();
delete tmp;
return true; // succesful en passant
}
}
} else if( (king = dynamic_cast<const King *>(fig)) && std::abs(cFrom-cTo) == 2) {// if move is valid and it is more than 1 space long -> castle
// move king
this->field[cTo][rTo] = this->field[cFrom][rFrom];
this->field[cFrom][rFrom] = NULL;
// move rook
int mv = cFrom < cTo ? -1 : 1;
int rookCol = mv == 1 ? 0 : 7;
this->field[cFrom - mv][rFrom] = this->field[rookCol][rFrom];
this->field[rookCol][rFrom] = NULL;
this->onMove = Board::flipColor(this->onMove);
fig->doMove();
return true;
// no need to check for check state as castle is not valid when checked
}
this->field[cTo][rTo] = fig;
this->field[cFrom][rFrom] = NULL;
if( this->isUnderAttack(this->onMove) ) {
// can't move and become attacked
this->field[cFrom][rFrom] = fig;
this->field[cTo][rTo] = target;
return false;
} else {
this->onMove = Board::flipColor(this->onMove);
fig->doMove();
return true;
}
}
