void ProcessWorldEvent(ZombieAgent zombie, WorldEvent ev)
{
if (ev == null)
{
return;
}
var dist = Vector3.Distance(zombie.pos, ev.Pos);
if (dist <= ev.Radius)
{
Vector3 soundDir = new Vector3();
soundDir.x = _prng.Get(-1.0f, 1.0f);
soundDir.z = _prng.Get(-1.0f, 1.0f);
// Pick a random position within 75% of the radius.
soundDir.Normalize();
soundDir *= (dist * 0.75f);
zombie.targetPos = ev.Pos + soundDir;
zombie.target = _worldZones.FindByPos2D(zombie.targetPos);
zombie.state = ZombieAgent.State.Investigating;
}
}
void UpdateInactiveZombie(ZombieAgent zombie, float dt, WorldEvent ev)
{
zombie.simulationTime += dt;
ProcessWorldEvent(zombie, ev);
UpdateTarget(zombie);
UpdateApproachTarget(zombie, dt);
}
private void UpdateInactiveZombie(ZombieAgent zombie, float dt, WorldEvent ev)
{
UpdateTarget(zombie, ev);
zombie.dir = zombie.targetPos - zombie.pos;
zombie.dir.Normalize();
float speed = _worldState.GetZombieSpeed() * dt;
zombie.pos = Vector3.MoveTowards(zombie.pos, zombie.targetPos, speed);
}
private void UpdateTarget(ZombieAgent zombie, WorldEvent ev)
{
if (ev != null)
{
var dist = Vector3.Distance(zombie.pos, ev.Pos);
if (dist <= ev.Radius)
{
Vector3 soundDir = new Vector3();
soundDir.x = _prng.Get(-1.0f, 1.0f);
soundDir.z = _prng.Get(-1.0f, 1.0f);
soundDir.Normalize();
soundDir *= (dist * 0.75f);
zombie.targetPos = ev.Pos + soundDir;
#if DEBUG
Log.Out("Reacting to sound at {0}", ev.Pos);
#endif
return;
}
}
// If we have an activate target wait for arrival.
if (!zombie.ReachedTarget())
{
return;
}
if (_worldState.IsBloodMoon())
{
zombie.target = _playerZones.GetRandomClosest(zombie.pos, _prng, 200.0f);
if (zombie.target == null)
{
zombie.target = GetNextTarget(zombie);
}
}
else
{
zombie.target = GetNextTarget(zombie);
}
zombie.targetPos = GetTargetPos(zombie.target);
}
void UpdateInactiveZombies(float dt)
{
// Repopulate
lock (_inactiveZombies)
{
lock (_inactiveQueue)
{
while (_inactiveQueue.Count > 0)
{
var zombie = _inactiveQueue.Dequeue();
_inactiveZombies.Add(zombie);
}
}
}
// Simulate
int activatedZombies = 0;
int maxUpdates = _maxZombies;
int maxPerZone = MaxZombiesPerZone();
WorldEvent ev = null;
lock (_worldEvents)
{
if (_worldEvents.Count > 0)
{
ev = _worldEvents.Dequeue();
}
}
for (int i = 0; ; i++)
{
lock (_inactiveZombies)
{
if (i >= _inactiveZombies.Count)
{
break;
}
var world = GameManager.Instance.World;
if (world == null)
{
Log.Out("[WalkerSim] World no longer exists, bailing");
break;
}
bool removeZombie = false;
bool activatedZombie = false;
ZombieAgent zombie = _inactiveZombies[i];
UpdateInactiveZombie(zombie, dt, ev);
//Log.Out("New Zombie Position: {0}, Target: {1}", zombie.pos, zombie.targetPos);
if (!CanSpawnActiveZombie())
{
continue;
}
List <PlayerZone> zones = _playerZones.FindAllByPos2D(zombie.pos);
if (zones.Count <= 0)
{
continue;
}
foreach (var zone in zones)
{
var player = world.GetEntity(zone.entityId) as EntityPlayer;
// Use players spawn border.
if (zone.IsInside2D(zombie.pos))
{
if (!zone.InsideSpawnArea2D(zombie.pos))
{
removeZombie = true;
continue;
}
}
else
{
continue;
}
if (zone.numZombies >= maxPerZone)
{
#if DEBUG
Log.Out("[WalkerSim] Zone {0} is full: {1} / {2}", zombie.pos, zone.numZombies, maxPerZone);
#endif
continue;
}
RequestActiveZombie(zombie, zone);
activatedZombie = true;
activatedZombies++;
break;
}
// Zombie inside one or more zones will be always removed.
if (activatedZombie)
{
removeZombie = true;
}
if (removeZombie)
{
_inactiveZombies.RemoveAt(i);
i--;
// If the zombie was not activated begin a new cycle.
if (!activatedZombie)
{
RespawnInactiveZombie(zombie);
}
// NOTE: This should never happen.
if (_inactiveZombies.Count == 0)
{
Log.Error("Population is empty, this should not happen.");
break;
}
}
}
}
#if DEBUG
if (activatedZombies > 0)
{
Log.Out("[WalkerSim] Activated {0} zombies", activatedZombies);
}
#endif
}