/// <summary>
/// Attacks the province.
/// </summary>
/// <param name="factionId">Faction identifier.</param>
/// <param name="provinceId">Province identifier.</param>
public BattleResult AttackProvince(string factionId, string provinceId)
{
Province targetProvince = world.GetProvinces().FirstOrDefault(r => r.Id == provinceId);
if (string.IsNullOrWhiteSpace(provinceId) ||
targetProvince.Locked ||
!world.FactionBordersProvince(factionId, provinceId))
{
throw new InvalidTargetProvinceException(provinceId);
}
Faction attackerFaction = world.GetFactions().FirstOrDefault(f => f.Id == factionId);
Faction defenderFaction = world.GetFactions().FirstOrDefault(f => f.Id == targetProvince.FactionId);
if (defenderFaction.Id == attackerFaction.Id ||
defenderFaction.Id == GameDefines.GAIA_FACTION)
{
throw new InvalidTargetProvinceException(provinceId);
}
while (world.GetFactionTroopsAmount(attackerFaction.Id) > 0 &&
world.GetFactionTroopsAmount(defenderFaction.Id) > 0)
{
Army attackerArmy = world.GetFactionArmies(attackerFaction.Id)
.Where(a => a.Size > 0)
.GetRandomElement();
Army defenderArmy = world.GetFactionArmies(defenderFaction.Id)
.Where(a => a.Size > 0)
.GetRandomElement();
Unit attackerUnit = world.GetUnits().FirstOrDefault(u => u.Id == attackerArmy.UnitId);
Unit defenderUnit = world.GetUnits().FirstOrDefault(u => u.Id == defenderArmy.UnitId);
// TODO: Attack and Defence bonuses
int attackerTroopsLeft =
(attackerUnit.Health * attackerArmy.Size - defenderUnit.Power * defenderArmy.Size) /
attackerUnit.Health;
int defenderTroopsLeft =
(defenderUnit.Health * defenderArmy.Size - attackerUnit.Power * attackerArmy.Size) /
defenderUnit.Health;
attackerArmy.Size = Math.Max(0, attackerTroopsLeft);
defenderArmy.Size = Math.Max(0, defenderTroopsLeft);
}
// TODO: In the GameDomainService I should change the realations based on wether the
// province was sovereign or not
if (world.GetFactionTroopsAmount(attackerFaction.Id) >
world.GetFactionTroopsAmount(defenderFaction.Id))
{
world.TransferProvince(provinceId, factionId);
targetProvince.Locked = true;
return(BattleResult.Victory);
}
return(BattleResult.Defeat);
}
/// <summary> /// Gets the faction troops amount. /// </summary> /// <returns>The faction troops amount.</returns> /// <param name="factionId">Faction identifier.</param> public int GetFactionTroopsAmount(string factionId) => world.GetFactionTroopsAmount(factionId);