static bool Prefix(RuleCalculateAttackBonus __instance, RulebookEventContext context)
{
FlankingParameters flankedParameters = new FlankingParameters(typeof(RuleCalculateAttackBonus_OnTrigger_Patch), __instance.Initiator);
UnitCombatState_get_IsFlanked_Patch.PushFlankingParameters(flankedParameters);
return(true);
}
static bool Prefix(RulePrepareDamage __instance, RulebookEventContext context)
{
FlankingParameters flankedParameters = new FlankingParameters(typeof(RulePrepareDamage_OnTrigger_Patch), __instance.Initiator, true, null, null);
UnitCombatState_get_IsFlanked_Patch.PushFlankingParameters(flankedParameters);
return(true);
}
static bool Prefix(PreciseStrike __instance, RulePrepareDamage evt)
{
BlueprintUnitFact preciseStrikeFact = __instance.PreciseStrikeFact;
Func <UnitEntityData, UnitEntityData, UnitEntityData, bool> hasPreciseStrike =
(target, owner, flankingPartner) => owner.Descriptor.State.Features.SoloTactics || flankingPartner.Descriptor.HasFact(preciseStrikeFact);
FlankingParameters flankingParameters = new FlankingParameters(typeof(PreciseStrike_OnEventAboutToTrigger_Patch), __instance.Owner.Unit, hasPreciseStrike);
UnitCombatState_get_IsFlanked_Patch.PushFlankingParameters(flankingParameters);
return(true);
}
static bool Prefix(UnitCombatState __instance, ref bool __result)
{
__result = false;
// Without flanking parameters, this won't work, so the result is always false. This means all methods that call IsFlanked need
// to be made compatible, however the alternative would be to defer to the base IsFlanked behaviour, which would result in
// unpredictable behaviour.
if (flankingParameters.Count <= 0)
{
return(false);
}
FlankingParameters currentParameters = flankingParameters.Pop();
// Nonsensical parameters => false
if (currentParameters.FlankedBy == null && !currentParameters.FlankedByAnyone || currentParameters.FlankedBy != null && currentParameters.FlankedByAnyone)
{
return(false);
}
// Check if a specific unit is flanking the target (with a possible extra preconditions test)
if (currentParameters.FlankedBy != null && !currentParameters.FlankedByAnyone)
{
__result = __instance.Unit.IsFlankedByUnit(currentParameters.FlankedBy, currentParameters.FlankingPreconditions);
}
// Check if the target is by any two attackers (adhering to possible preconditions)
else if (currentParameters.FlankedByAnyone)
{
foreach (UnitEntityData unitEntityData in __instance.EngagedBy)
{
// Ignore the ExceptFlankedBy unit (if it is not null) for the flanking test
if (currentParameters.ExceptFlankedBy == null || unitEntityData != currentParameters.ExceptFlankedBy)
{
if (__instance.Unit.IsFlankedByUnit(unitEntityData, currentParameters.FlankingPreconditions))
{
__result = true;
break;
}
}
}
}
return(false);
}
public static void PushFlankingParameters(FlankingParameters parameters)
{
flankingParameters.Push(parameters);
}