void TickAction()
{
var fadeOff = Tools.PheromoneFadeoff();
var agitatedFadeoff = fadeOff / 4;
var checkSmashableFadeoff = agitatedFadeoff / 2;
var zombie = (Zombie)pawn;
if (zombie.state == ZombieState.Emerging)
{
return;
}
var map = zombie.Map;
if (zombie.Dead || zombie.Destroyed)
{
EndJobWith(JobCondition.InterruptForced);
return;
}
if (zombie.state == ZombieState.ShouldDie)
{
EndJobWith(JobCondition.InterruptForced);
zombie.Kill(null);
return;
}
if (ZombieSettings.Values.zombiesDieVeryEasily)
{
if (zombie.health.hediffSet.GetHediffs <Hediff_Injury>().Any())
{
zombie.Kill(null);
return;
}
}
if (zombie.Downed)
{
if (ZombieSettings.Values.zombiesDieVeryEasily || ZombieSettings.Values.doubleTapRequired == false)
{
zombie.Kill(null);
return;
}
var walkCapacity = PawnCapacityUtility.CalculateCapacityLevel(zombie.health.hediffSet, PawnCapacityDefOf.Moving);
var missingBrain = zombie.health.hediffSet.GetBrain() == null;
if (walkCapacity < 0.25f || missingBrain)
{
zombie.Kill(null);
return;
}
var injuries = zombie.health.hediffSet.GetHediffs <Hediff_Injury>();
foreach (var injury in injuries)
{
if (ZombieSettings.Values.zombiesDieVeryEasily)
{
zombie.Kill(null);
return;
}
if (injury.IsOld() == false)
{
injury.Heal(injury.Severity + 0.5f);
break;
}
}
if (zombie.Downed)
{
return;
}
}
// handling invalid destinations
//
if (destination.x == 0 && destination.z == 0)
{
destination = IntVec3.Invalid;
}
if (zombie.HasValidDestination(destination))
{
return;
}
// if we are near targets then attack them
//
var enemy = CanAttack();
if (enemy != null)
{
destination = enemy.Position;
zombie.state = ZombieState.Tracking;
if (Constants.USE_SOUND)
{
var info = SoundInfo.InMap(enemy);
SoundDef.Named("ZombieHit").PlayOneShot(info);
}
AttackThing(enemy, JobDefOf.AttackMelee);
return;
}
// eat a downed or dead pawn
//
if (eatTarget == null)
{
eatTarget = CanIngest(out eatTargetIsCorpse);
if (eatTarget != null)
{
eatTargetDied = eatTarget.Dead;
}
}
if (eatTarget != null)
{
if (eatDelayCounter == 0)
{
if (eatTarget != lastEatTarget)
{
lastEatTarget = eatTarget;
zombie.Drawer.rotator.FaceCell(eatTarget.Position);
var zombieLeaner = zombie.Drawer.leaner as ZombieLeaner;
if (zombieLeaner != null)
{
zombieLeaner.extraOffset = (eatTarget.Position.ToVector3() - zombie.Position.ToVector3()) * 0.5f;
}
Tools.CastThoughtBubble(pawn, Constants.EATING);
}
CastEatingSound();
}
eatDelayCounter++;
if (eatDelayCounter <= EatDelay)
{
return;
}
eatDelayCounter = 0;
var bodyPartRecord = FirstEatablePart(eatTarget);
if (bodyPartRecord != null)
{
var hediff_MissingPart = (Hediff_MissingPart)HediffMaker.MakeHediff(HediffDefOf.MissingBodyPart, eatTarget, bodyPartRecord);
hediff_MissingPart.lastInjury = HediffDefOf.Bite;
hediff_MissingPart.IsFresh = true;
eatTarget.health.AddHediff(hediff_MissingPart, null, null);
if (eatTargetIsCorpse == false && eatTargetDied == false && eatTarget.Dead)
{
Tools.DoWithAllZombies(map, z =>
{
if (z.jobs != null)
{
var driver = z.jobs.curDriver as JobDriver_Stumble;
if (driver != null && driver.eatTarget == eatTarget)
{
driver.eatTargetDied = true;
driver.eatTargetIsCorpse = true;
}
}
});
if (PawnUtility.ShouldSendNotificationAbout(eatTarget) && eatTarget.RaceProps.Humanlike)
{
Messages.Message("MessageEatenByPredator".Translate(new object[]
{
eatTarget.LabelShort,
zombie.LabelIndefinite()
}).CapitalizeFirst(), zombie, MessageSound.Negative);
}
eatTarget.Strip();
}
return;
}
else
{
var corpse = map.thingGrid
.ThingsListAt(eatTarget.Position)
.OfType <Corpse>()
.FirstOrDefault(c => c.InnerPawn == eatTarget);
if (corpse != null)
{
corpse.Destroy(DestroyMode.Vanish);
}
Tools.DoWithAllZombies(map, z =>
{
if (z.jobs != null)
{
var driver = z.jobs.curDriver as JobDriver_Stumble;
if (driver != null && driver.eatTarget == eatTarget)
{
driver.eatTarget = null;
driver.lastEatTarget = null;
driver.eatDelayCounter = 0;
}
}
});
}
}
else
{
var zombieLeaner = zombie.Drawer.leaner as ZombieLeaner;
if (zombieLeaner != null)
{
zombieLeaner.extraOffset = Vector3.zero;
}
}
var basePos = zombie.Position;
// calculate possible moves, sort by pheromone value and take top 3
// then choose the one with the lowest zombie count
// also, emit a circle of timestamps when discovering a pheromone
// trace so nearby zombies pick it up too (leads to a chain reaction)
//
var grid = zombie.Map.GetGrid();
var possibleTrackingMoves = new List <IntVec3>();
var currentTicks = Tools.Ticks();
var timeDelta = long.MaxValue;
for (int i = 0; i < 8; i++)
{
var pos = basePos + GenAdj.AdjacentCells[i];
if (currentTicks - grid.Get(pos, false).timestamp < fadeOff && zombie.HasValidDestination(pos))
{
possibleTrackingMoves.Add(pos);
}
}
if (possibleTrackingMoves.Count > 0)
{
possibleTrackingMoves.Sort((p1, p2) => SortByTimestamp(grid, p1, p2));
possibleTrackingMoves = possibleTrackingMoves.Take(Constants.NUMBER_OF_TOP_MOVEMENT_PICKS).ToList();
possibleTrackingMoves = possibleTrackingMoves.OrderBy(p => grid.Get(p, false).zombieCount).ToList();
var nextMove = possibleTrackingMoves.First();
timeDelta = currentTicks - grid.Get(nextMove, false).timestamp;
destination = nextMove;
if (zombie.state == ZombieState.Wandering)
{
Tools.ChainReact(zombie.Map, basePos, nextMove);
if (timeDelta <= agitatedFadeoff)
{
CastBrainzThought();
}
}
zombie.state = ZombieState.Tracking;
}
if (destination.IsValid == false)
{
zombie.state = ZombieState.Wandering;
}
bool checkSmashable = timeDelta >= checkSmashableFadeoff;
if (ZombieSettings.Values.smashOnlyWhenAgitated)
{
checkSmashable &= zombie.state == ZombieState.Tracking;
}
if (destination.IsValid == false || checkSmashable)
{
var building = CanSmash();
if (building != null)
{
destination = building.Position;
if (Constants.USE_SOUND)
{
var info = SoundInfo.InMap(enemy);
SoundDef.Named("ZombieHit").PlayOneShot(info);
}
AttackThing(building, JobDefOf.AttackStatic);
return;
}
}
if (destination.IsValid == false)
{
var hour = GenLocalDate.HourOfDay(Find.VisibleMap);
// check for day/night and dust/dawn
//
var moveTowardsCenter = false;
if (map.areaManager.Home[basePos] == false)
{
if (hour < 12)
{
hour += 24;
}
if (hour > Constants.HOUR_START_OF_NIGHT && hour < Constants.HOUR_END_OF_NIGHT)
{
moveTowardsCenter = true;
}
else if (hour >= Constants.HOUR_START_OF_DUSK && hour <= Constants.HOUR_START_OF_NIGHT)
{
moveTowardsCenter = Rand.RangeInclusive(hour, Constants.HOUR_START_OF_NIGHT) == Constants.HOUR_START_OF_NIGHT;
}
else if (hour >= Constants.HOUR_END_OF_NIGHT && hour <= Constants.HOUR_START_OF_DAWN)
{
moveTowardsCenter = Rand.RangeInclusive(Constants.HOUR_END_OF_NIGHT, hour) == Constants.HOUR_END_OF_NIGHT;
}
}
var possibleMoves = new List <IntVec3>();
for (int i = 0; i < 8; i++)
{
var pos = basePos + GenAdj.AdjacentCells[i];
if (zombie.HasValidDestination(pos))
{
possibleMoves.Add(pos);
}
}
if (possibleMoves.Count > 0)
{
// during night, zombies drift towards the colonies center
//
if (moveTowardsCenter)
{
var center = zombie.wanderDestination.IsValid ? zombie.wanderDestination : map.Center;
possibleMoves.Sort((p1, p2) => SortByDirection(center, p1, p2));
possibleMoves = possibleMoves.Take(Constants.NUMBER_OF_TOP_MOVEMENT_PICKS).ToList();
possibleMoves = possibleMoves.OrderBy(p => grid.Get(p, false).zombieCount).ToList();
destination = possibleMoves.First();
}
else
{
// otherwise they sometimes stand or walk towards a random direction
//
if (Rand.Chance(Constants.STANDING_STILL_CHANCE))
{
var n = possibleMoves.Count();
destination = possibleMoves[Constants.random.Next(n)];
}
}
}
}
// if we have a valid destination, go there
//
if (destination.IsValid)
{
MoveToCell(destination);
}
}