/* Returns a list of moves naively available to that piece.
* It ignores the state of the board and any pieces that might be
* in the way at this stage. */
public List<Move> getAvailableMoves()
{
Coord fromPos = currentPosition; //the pos from which this piece will move
List<Move> moves = new List<Move>();
Dictionary<string, int> instruction;
Move move;
if ((ptype == "d_man") || (ptype == "d_king"))
{
// y direction determined from 'player'
// the JMP moves will contain reference to the jmpd tile/piece
instruction = MoveInstructionDatabase.getAdvanceMoveWest(player);
move = new Move(fromPos, "mv", instruction);
moves.Add(move);
// since this is a jump type move, the move object will also know to
// generate the coord which was jumped from the instruction
// the instruction will accordingly provide this information
instruction = MoveInstructionDatabase.getAdvanceJumpWest(player);
move = new Move(fromPos, "jmp", instruction);
moves.Add(move);
instruction = MoveInstructionDatabase.getAdvanceMoveEast(player);
move = new Move(fromPos, "mv", instruction);
moves.Add(move);
instruction = MoveInstructionDatabase.getAdvanceJumpEast(player);
move = new Move(fromPos, "jmp", instruction);
moves.Add(move);
}
if (ptype == "d_king") // also compute the move on the opposite
// y direction (retreat) for the king piece
{
instruction = MoveInstructionDatabase.getRetreatMoveWest(player);
move = new Move(fromPos, "mv", instruction);
moves.Add(move);
instruction = MoveInstructionDatabase.getRetreatJumpWest(player);
move = new Move(fromPos, "jmp", instruction);
moves.Add(move);
instruction = MoveInstructionDatabase.getRetreatMoveEast(player);
move = new Move(fromPos, "mv", instruction);
moves.Add(move);
instruction = MoveInstructionDatabase.getRetreatJumpEast(player);
move = new Move(fromPos, "jmp", instruction);
moves.Add(move);
}
return moves;
}
/* Check if a given move's toPosition is lying legally on the
* board. If it is not within the legal range, false is returned.
* Todo: more elegant way of doing this with a range? */
private bool isToPosOnBoard(Move move)
{
int x = move.ToPos.X;
int y = move.ToPos.Y;
return (x >= 0) && (x < size) && (y >= 0) && (y < size);
}