static public CombatResult GenerateForCombat(ICombat combat, Func <Guid, IEnumerable <UInt32> > randomNumberGenerator)
{
CombatResult result = new CombatResult(combat.CombatId);
result.m_StartingArmies = combat.InvolvedArmies;
result.m_SurvivingArmies = (from army in combat.InvolvedArmies
select new CombatArmy(army)).ToList();
// Remove any armies with no troops (e.g. spoils of war, the defender is just here so we know what region's at stake!)
result.m_SurvivingArmies.RemoveAll(army => army.NumberOfTroops == 0);
while (result.m_SurvivingArmies.GroupBy(army => army.OwnerUserId).Count() > 1)
{
CombatRoundResult combatRound = CombatRoundResult.GenerateForCombat(combat.ResolutionType, result.m_SurvivingArmies, randomNumberGenerator);
result.m_Rounds.Add(combatRound);
// Remove armies with no troops left
result.m_SurvivingArmies.RemoveAll(army => army.NumberOfTroops == 0);
// Mass invasion has an early out when the defenders are all dead. Otherwise, fight to the last army standing!
if (combat.ResolutionType == CombatType.MassInvasion)
{
if (result.m_SurvivingArmies.Where(army => army.ArmyMode == CombatArmyMode.Defending).Count() == 0)
{
break;
}
}
}
return(result);
}
static public CombatRoundResult GenerateForCombat(CombatType resolutionMode, List <CombatArmy> armies, Func <Guid, IEnumerable <UInt32> > randomNumberGenerator)
{
CombatRoundResult roundResult = new CombatRoundResult();
// Generate the results for each army
foreach (CombatArmy army in armies)
{
roundResult.m_ArmyResults.Add(CombatArmyRoundResult.GenerateForCombat(army, randomNumberGenerator(army.OriginRegionId)));
}
switch (resolutionMode)
{
case CombatType.BorderClash:
case CombatType.SpoilsOfWar:
{
for (int counter = 0; counter < 3; ++counter)
{
var attackingDiceQuery = from armyResult in roundResult.m_ArmyResults
where armyResult.RolledResults.Count() > counter
join army in armies on armyResult.OriginRegionId equals army.OriginRegionId
let armyDiceRoll = armyResult.RolledResults.ElementAt(counter)
orderby armyDiceRoll descending, army.NumberOfTroops ascending
select new { Army = army, Results = armyResult, AttackerRoll = armyDiceRoll };
var attackers = attackingDiceQuery.ToList();
for (int attackerIndex = 0; attackerIndex < attackers.Count; ++attackerIndex)
{
var attacker = attackers[attackerIndex];
// Compare against all remaining attackers (or until we run out of troops)
for (int defenderIndex = attackerIndex + 1; attacker.Results.TroopsLost < attacker.Army.NumberOfTroops && defenderIndex < attackers.Count; ++defenderIndex)
{
var defender = attackers[defenderIndex];
// Ensure defender has troops left and this wouldn't be friendly fire
if (defender.Army.OwnerUserId != attacker.Army.OwnerUserId && defender.Results.TroopsLost < defender.Army.NumberOfTroops)
{
// We've sorted out players by dice roll, so anyone in a lower index must either draw or be worse
if (attacker.AttackerRoll == defender.AttackerRoll)
{
if (resolutionMode == CombatType.SpoilsOfWar)
{
// For a spoils of war, don't deduct troops on a draw. We don't want to be left with no one able to take the territory over
continue;
}
attacker.Results.TroopsLost += 1;
}
defender.Results.TroopsLost += 1;
}
}
}
}
break;
}
case CombatType.MassInvasion:
case CombatType.Invasion:
{
// Calculate troop loses. On a tie, the defenders lose
var defendingDiceQuery = from armyResult in roundResult.m_ArmyResults
join army in armies on armyResult.OriginRegionId equals army.OriginRegionId
where army.ArmyMode == CombatArmyMode.Defending
select new { Army = army, Results = armyResult, DefenderRolls = armyResult.RolledResults.OrderByDescending(diceRoll => diceRoll).ToList() };
var attackingDiceQuery = from armyResult in roundResult.m_ArmyResults
join army in armies on armyResult.OriginRegionId equals army.OriginRegionId
where army.ArmyMode == CombatArmyMode.Attacking
orderby army.NumberOfTroops ascending
select new { Army = army, Results = armyResult, AttackerRolls = armyResult.RolledResults.OrderByDescending(diceRoll => diceRoll).ToList() };
var defender = defendingDiceQuery.FirstOrDefault();
for (int counter = 0; counter < defender.DefenderRolls.Count; ++counter)
{
UInt32 defenderRoll = defender.DefenderRolls[counter];
foreach (var attacker in attackingDiceQuery)
{
// Check this attacker still has any dice left and both sides still have troops
if (counter < attacker.AttackerRolls.Count && attacker.Results.TroopsLost < attacker.Army.NumberOfTroops && defender.Results.TroopsLost < defender.Army.NumberOfTroops)
{
UInt32 attackerRoll = attacker.AttackerRolls[counter];
if (attackerRoll >= defenderRoll)
{
defender.Results.TroopsLost += 1;
}
else
{
attacker.Results.TroopsLost += 1;
}
}
}
}
break;
}
}
// Apply troop loses to the armies
var armyQuery = from armyResult in roundResult.m_ArmyResults
join army in armies on armyResult.OriginRegionId equals army.OriginRegionId
select new { Army = army, TroopsLost = armyResult.TroopsLost };
foreach (var army in armyQuery)
{
army.Army.NumberOfTroops -= army.TroopsLost;
}
return(roundResult);
}
