src/core/defaultstate.cpp

   1 #include "behaviour.h"
   2 #include "board.h"
   3 #include "defaultstate.h"
   4 #include "defaulttype.h"
   5
   6 std::vector<const Point*> DefaultState::theoreticalMoves(const Piece& piece,
   7                                                          const Point& src) const {
   8   std::vector<const Point*> destinations;
   9
  10   const IBehaviour* behaviour = this->behaviour();
  11   if (!behaviour) return destinations; // empty
  12
  13   const std::vector<MoveDefinition> * defs =
  14     dynamic_cast<const DefaultType*>(piece.type())->movesDefinitions();
  15   if (!defs) return destinations; // empty
  16
  17   //kDebug() << "looking at moves from " << src;
  18   for (unsigned direction=0; direction < defs->size(); direction++)
  19     for (int distance=1;
  20          (*defs)[direction].distance ? (distance <= (*defs)[direction].distance) : 1;
  21          distance++) {
  22       Point* candidate = new Point(src.x + ((*defs)[direction].x * distance *
  23                                             -behaviour->direction(piece.color()).y),
  24                                    src.y + ((*defs)[direction].y * distance *
  25                                             behaviour->direction(piece.color()).y));
  26       if (!board()->valid(*candidate))
  27         // end of board: don't look further in that direction
  28         break;
  29
  30       destinations.push_back(candidate);
  31
  32       // stop looking in direction if there is a piece blocking move here
  33       const Piece otherPiece = board()->get(*candidate);
  34       if (otherPiece != Piece())
  35         break;
  36   }
  37
  38   return destinations;
  39 }