private BoardState Attack(BoardState board, Move move)
{
Territory from = move.From;
Territory to = move.To;
// If attacking, must leave one troop behind
int attackers = Min(move.From.TroopCount - 1, 3);
int defenders = Min(move.To.TroopCount, 2);
List <int> attack = RollDice(attackers);
List <int> defense = RollDice(defenders);
int comparisons = Min(attack.Count, defense.Count);
for (int i = 0; i < comparisons; i++)
{
// Defender wins ties
if (attack[i] > defense[i])
{
to = to.ModifyTroops(-1);
}
else
{
from = from.ModifyTroops(-1);
}
}
if (to.TroopCount == 0)
{
to = to.ChangeControl(from.Player, from.TroopCount - 1);
from.ModifyTroops(-from.TroopCount + 1);
}
return(board.AttackUpdate(from, to));
}