private bool Check_Move_handled(string smove, int player) //DONT CALL WITHOUT THE HANDLER, Check_Move
{
//check move syntax
//Check if move string is of valid format
if (!drawing.check_Syntax(smove))
{
return(false);
}
List <Piece> move = Split(smove);
//every position in list on a black field?
foreach (Piece position in move)
{
if (!is_black(position))
{
return(false);
}
} //moves which made it this far are syntacticly correct, next check if they comply by the rules
//check if its moving an own piece ( -20 converts lowercase to uppercase)
if (!(board[move[0]] == color(player) || board[move[0]] == Convert.ToChar(color(player) - 32)))
{
MessageBox.Show("Du musst deinen eigenen Stein bewegen :)");
return(false);
}
//target must be empty
if (board[move[1]] != '.')
{
MessageBox.Show("Das Zielfeld ist bereits besetzt.");
return(false);
}
//move is a normal move
if (!is_jump(move[0], move[1]))
{
//moves are always 5 chars long
if (smove.Length != 5)
{
return(false);
}
foreach (KeyValuePair <Piece, char> kvp in board)
{
if (!(kvp.Value == color(player) || kvp.Value == (color(player) - 32)))
{
continue;
}
//if a jump is possible, the move should have been a jump
if (possible_jumps(kvp.Key, player).Count != 0)
{
MessageBox.Show("Du musst Springen!");
return(false);
}
}
//there is no valid jump, is the move valid?
if (is_move(move[0], move[1]))
{
return(true);
}
else
{
return(false);
}
} //move is a jump
//check if every jump until the last one is valid
int i = 0;
while (i < (move.Count - 1))
{
//is the jump valid?
if (!possible_jumps(move[i], player).Contains(move[i + 1]))
{
return(false);
}
//perform jump
board[move[i + 1]] = board[move[i]];
board[move[i]] = '.';
board[between(move[i], move[i + 1])] = '.';
i++;
}
//if the player can still jump it is invalid (player has to jump as far as his current chain allows)
if (possible_jumps(move[i], player).Count != 0)
{
return(false);
}
else
{
return(true);
}
}
