public override string UpdateServer(Entity entity)
{
SmartNpc smartNpc = (SmartNpc)entity;
if (smartNpc.state == "IDLE")
{
return(UpdateServer_IDLE(smartNpc));
}
if (smartNpc.state == "MOVING")
{
return(UpdateServer_MOVING(smartNpc));
}
if (smartNpc.state == "CASTING")
{
return(UpdateServer_CASTING(smartNpc));
}
if (smartNpc.state == "STUNNED")
{
return(UpdateServer_STUNNED(smartNpc));
}
if (smartNpc.state == "DEAD")
{
return(UpdateServer_DEAD(smartNpc));
}
Debug.LogError("invalid state:" + smartNpc.state);
return("IDLE");
}
public override void UpdateClient(Entity entity)
{
SmartNpc smartNpc = (SmartNpc)entity;
if (smartNpc.state == "CASTING")
{
// keep looking at the target for server & clients (only Y rotation)
if (smartNpc.target)
{
smartNpc.movement.LookAtY(smartNpc.target.transform.position);
}
}
}
// DrawGizmos can be used for debug info
public override void DrawGizmos(Entity entity)
{
SmartNpc smartNpc = (SmartNpc)entity;
// draw the movement area (around 'start' if game running,
// or around current position if still editing)
Vector3 startHelp = Application.isPlaying ? smartNpc.startPosition : smartNpc.transform.position;
Gizmos.color = Color.yellow;
Gizmos.DrawWireSphere(startHelp, moveDistance);
// draw the follow dist
Gizmos.color = Color.gray;
Gizmos.DrawWireSphere(startHelp, followDistance);
}
string UpdateServer_STUNNED(SmartNpc smartNpc)
{
// events sorted by priority (e.g. target doesn't matter if we died)
if (EventDied(smartNpc))
{
// we died.
return("DEAD");
}
if (EventStunned(smartNpc))
{
return("STUNNED");
}
// go back to idle if we aren't stunned anymore and process all new
// events there too
return("IDLE");
}
patrolPath; //&& smartNpc.timeSinceArrivedAtWaypoint > waypointDwellTime;
// states //////////////////////////////////////////////////////////////////
string UpdateServer_IDLE(SmartNpc smartNpc)
{
// events sorted by priority (e.g. target doesn't matter if we died)
if (EventDied(smartNpc))
{
// we died.
return("DEAD");
}
if (EventStunned(smartNpc))
{
smartNpc.movement.Reset();
return("STUNNED");
}
if (EventTargetDied(smartNpc))
{
// we had a target before, but it died now. clear it.
smartNpc.target = null;
smartNpc.skills.CancelCast();
return("IDLE");
}
if (EventTargetTooFarToFollow(smartNpc))
{
// we had a target before, but it's out of follow range now.
// clear it and go back to start. don't stay here.
smartNpc.target = null;
smartNpc.skills.CancelCast();
smartNpc.movement.Navigate(smartNpc.startPosition, 0);
return("MOVING");
}
if (EventTargetTooFarToAttack(smartNpc))
{
// we had a target before, but it's out of attack range now.
// follow it. (use collider point(s) to also work with big entities)
float stoppingDistance = ((SmartNpcSkills)smartNpc.skills).CurrentCastRange() * attackToMoveRangeRatio;
Vector3 destination = Utils.ClosestPoint(smartNpc.target, smartNpc.transform.position);
smartNpc.movement.Navigate(destination, stoppingDistance);
return("MOVING");
}
if (EventTargetEnteredSafeZone(smartNpc))
{
// if our target entered the safe zone, we need to be really careful
// to avoid kiting.
// -> players could pull a smartNpc near a safe zone and then step in
// and out of it before/after attacks without ever getting hit by
// the smartNpc
// -> running back to start won't help, can still kit while running
// -> warping back to start won't help, we might accidentally placed
// a smartNpc in attack range of a safe zone
// -> the 100% secure way is to die and hide it immediately. many
// popular MMOs do it the same way to avoid exploits.
// => call Entity.OnDeath without rewards etc. and hide immediately
smartNpc.OnDeath(); // no looting
smartNpc.respawnTimeEnd = NetworkTime.time + smartNpc.respawnTime; // respawn in a while
return("DEAD");
}
if (EventSkillRequest(smartNpc))
{
// we had a target in attack range before and trying to cast a skill
// on it. check self (alive, mana, weapon etc.) and target
Skill skill = smartNpc.skills.skills[smartNpc.skills.currentSkill];
if (smartNpc.skills.CastCheckSelf(skill))
{
if (smartNpc.skills.CastCheckTarget(skill))
{
// start casting
smartNpc.skills.StartCast(skill);
return("CASTING");
}
else
{
// invalid target. clear the attempted current skill.
smartNpc.target = null;
smartNpc.skills.currentSkill = -1;
return("IDLE");
}
}
else
{
// we can't cast this skill at the moment (cooldown/low mana/...)
// -> clear the attempted current skill, but keep the target to
// continue later
smartNpc.skills.currentSkill = -1;
return("IDLE");
}
}
if (EventAggro(smartNpc))
{
// target in attack range. try to cast a first skill on it
if (smartNpc.skills.skills.Count > 0)
{
smartNpc.skills.currentSkill = ((SmartNpcSkills)smartNpc.skills).NextSkill();
}
else
{
Debug.LogError(name + " has no skills to attack with.");
}
return("IDLE");
}
if (EventMoveRandomly(smartNpc))
{
// walk to a random position in movement radius (from 'start')
// note: circle y is 0 because we add it to start.y
Vector2 circle2D = Random.insideUnitCircle * moveDistance;
smartNpc.movement.Navigate(smartNpc.startPosition + new Vector3(circle2D.x, 0, circle2D.y), 0);
return("MOVING");
}
if (EventPatrolPath(smartNpc))
{
Vector3 currentWaypoint = smartNpc.patrolPath.GetWaypoint(smartNpc.currentWaypointIndex);
float distanceToWaypoint = Vector3.Distance(smartNpc.transform.position, currentWaypoint);
bool atWaypoint = distanceToWaypoint < waypointTolerance;
if (atWaypoint)
{
//smartNpc.SetTimeSinceArrivedAtWaypoint(0);
smartNpc.CycleWaypoint();
Vector3 nextPosition = smartNpc.patrolPath.GetWaypoint(smartNpc.currentWaypointIndex);
smartNpc.movement.Navigate(nextPosition, 0);
return("MOVING");
}
smartNpc.movement.Navigate(currentWaypoint, 0);
return("MOVING");
}
if (EventDeathTimeElapsed(smartNpc))
{
} // don't care
if (EventRespawnTimeElapsed(smartNpc))
{
} // don't care
if (EventMoveEnd(smartNpc))
{
} // don't care
if (EventSkillFinished(smartNpc))
{
} // don't care
if (EventTargetDisappeared(smartNpc))
{
} // don't care
return("IDLE"); // nothing interesting happened
}
string UpdateServer_DEAD(SmartNpc smartNpc)
{
// events sorted by priority (e.g. target doesn't matter if we died)
if (EventRespawnTimeElapsed(smartNpc))
{
// respawn at the start position with full health, visibility, no loot
smartNpc.gold = 0;
smartNpc.inventory.slots.Clear();
smartNpc.Show();
smartNpc.movement.Warp(smartNpc.startPosition); // recommended over transform.position
smartNpc.Revive();
return("IDLE");
}
if (EventDeathTimeElapsed(smartNpc))
{
// we were lying around dead for long enough now.
// hide while respawning, or disappear forever
if (smartNpc.respawn)
{
smartNpc.Hide();
}
else
{
NetworkServer.Destroy(smartNpc.gameObject);
}
return("DEAD");
}
if (EventSkillRequest(smartNpc))
{
} // don't care
if (EventSkillFinished(smartNpc))
{
} // don't care
if (EventMoveEnd(smartNpc))
{
} // don't care
if (EventTargetDisappeared(smartNpc))
{
} // don't care
if (EventTargetDied(smartNpc))
{
} // don't care
if (EventTargetTooFarToFollow(smartNpc))
{
} // don't care
if (EventTargetTooFarToAttack(smartNpc))
{
} // don't care
if (EventTargetEnteredSafeZone(smartNpc))
{
} // don't care
if (EventAggro(smartNpc))
{
} // don't care
if (EventMoveRandomly(smartNpc))
{
} // don't care
if (EventStunned(smartNpc))
{
} // don't care
if (EventDied(smartNpc))
{
} // don't care, of course we are dead
return("DEAD"); // nothing interesting happened
}
public bool EventTargetTooFarToFollow(SmartNpc smartNpc) => smartNpc.target != null && Vector3.Distance(smartNpc.startPosition, Utils.ClosestPoint(smartNpc.target, smartNpc.transform.position)) > followDistance;
public bool EventPatrolPath(SmartNpc smartNpc) => patrolPath; //&& smartNpc.timeSinceArrivedAtWaypoint > waypointDwellTime;
public bool EventRespawnTimeElapsed(SmartNpc smartNpc) => smartNpc.state == "DEAD" && smartNpc.respawn && NetworkTime.time >= smartNpc.respawnTimeEnd;
string UpdateServer_CASTING(SmartNpc smartNpc)
{
// keep looking at the target for server & clients (only Y rotation)
if (smartNpc.target)
{
smartNpc.movement.LookAtY(smartNpc.target.transform.position);
}
// events sorted by priority (e.g. target doesn't matter if we died)
if (EventDied(smartNpc))
{
// we died.
return("DEAD");
}
if (EventStunned(smartNpc))
{
smartNpc.skills.CancelCast();
smartNpc.movement.Reset();
return("STUNNED");
}
if (EventTargetDisappeared(smartNpc))
{
// cancel if the target matters for this skill
if (smartNpc.skills.skills[smartNpc.skills.currentSkill].cancelCastIfTargetDied)
{
smartNpc.skills.CancelCast();
smartNpc.target = null;
return("IDLE");
}
}
if (EventTargetDied(smartNpc))
{
// cancel if the target matters for this skill
if (smartNpc.skills.skills[smartNpc.skills.currentSkill].cancelCastIfTargetDied)
{
smartNpc.skills.CancelCast();
smartNpc.target = null;
return("IDLE");
}
}
if (EventTargetEnteredSafeZone(smartNpc))
{
// cancel if the target matters for this skill
if (smartNpc.skills.skills[smartNpc.skills.currentSkill].cancelCastIfTargetDied)
{
// if our target entered the safe zone, we need to be really careful
// to avoid kiting.
// -> players could pull a smartNpc near a safe zone and then step in
// and out of it before/after attacks without ever getting hit by
// the smartNpc
// -> running back to start won't help, can still kit while running
// -> warping back to start won't help, we might accidentally placed
// a smartNpc in attack range of a safe zone
// -> the 100% secure way is to die and hide it immediately. many
// popular MMOs do it the same way to avoid exploits.
// => call Entity.OnDeath without rewards etc. and hide immediately
smartNpc.OnDeath(); // no looting
smartNpc.respawnTimeEnd = NetworkTime.time + smartNpc.respawnTime; // respawn in a while
return("DEAD");
}
}
if (EventSkillFinished(smartNpc))
{
// finished casting. apply the skill on the target.
smartNpc.skills.FinishCast(smartNpc.skills.skills[smartNpc.skills.currentSkill]);
// did the target die? then clear it so that the smartNpc doesn't
// run towards it if the target respawned
// (target might be null if disappeared or targetless skill)
if (smartNpc.target != null && smartNpc.target.health.current == 0)
{
smartNpc.target = null;
}
// go back to IDLE, reset current skill
((SmartNpcSkills)smartNpc.skills).lastSkill = smartNpc.skills.currentSkill;
smartNpc.skills.currentSkill = -1;
return("IDLE");
}
if (EventDeathTimeElapsed(smartNpc))
{
} // don't care
if (EventRespawnTimeElapsed(smartNpc))
{
} // don't care
if (EventMoveEnd(smartNpc))
{
} // don't care
if (EventTargetTooFarToAttack(smartNpc))
{
} // don't care, we were close enough when starting to cast
if (EventTargetTooFarToFollow(smartNpc))
{
} // don't care, we were close enough when starting to cast
if (EventAggro(smartNpc))
{
} // don't care, always have aggro while casting
if (EventSkillRequest(smartNpc))
{
} // don't care, that's why we are here
if (EventMoveRandomly(smartNpc))
{
} // don't care
return("CASTING"); // nothing interesting happened
}
public bool EventMoveRandomly(SmartNpc smartNpc) => Random.value <= moveProbability * Time.deltaTime;
// events ////////////////////////////////////////////////////////////////// public bool EventDeathTimeElapsed(SmartNpc smartNpc) => smartNpc.state == "DEAD" && NetworkTime.time >= smartNpc.deathTimeEnd;
string UpdateServer_MOVING(SmartNpc smartNpc)
{
// events sorted by priority (e.g. target doesn't matter if we died)
if (EventDied(smartNpc))
{
// we died.
smartNpc.movement.Reset();
return("DEAD");
}
if (EventStunned(smartNpc))
{
smartNpc.movement.Reset();
return("STUNNED");
}
if (EventMoveEnd(smartNpc))
{
// we reached our destination.
return("IDLE");
}
if (EventTargetDied(smartNpc))
{
// we had a target before, but it died now. clear it.
smartNpc.target = null;
smartNpc.skills.CancelCast();
smartNpc.movement.Reset();
return("IDLE");
}
if (EventTargetTooFarToFollow(smartNpc))
{
// we had a target before, but it's out of follow range now.
// clear it and go back to start. don't stay here.
smartNpc.target = null;
smartNpc.skills.CancelCast();
smartNpc.movement.Navigate(smartNpc.startPosition, 0);
return("MOVING");
}
if (EventTargetTooFarToAttack(smartNpc))
{
// we had a target before, but it's out of attack range now.
// follow it. (use collider point(s) to also work with big entities)
float stoppingDistance = ((SmartNpcSkills)smartNpc.skills).CurrentCastRange() * attackToMoveRangeRatio;
Vector3 destination = Utils.ClosestPoint(smartNpc.target, smartNpc.transform.position);
smartNpc.movement.Navigate(destination, stoppingDistance);
return("MOVING");
}
if (EventTargetEnteredSafeZone(smartNpc))
{
// if our target entered the safe zone, we need to be really careful
// to avoid kiting.
// -> players could pull a smartNpc near a safe zone and then step in
// and out of it before/after attacks without ever getting hit by
// the smartNpc
// -> running back to start won't help, can still kit while running
// -> warping back to start won't help, we might accidentally placed
// a smartNpc in attack range of a safe zone
// -> the 100% secure way is to die and hide it immediately. many
// popular MMOs do it the same way to avoid exploits.
// => call Entity.OnDeath without rewards etc. and hide immediately
smartNpc.OnDeath(); // no looting
smartNpc.respawnTimeEnd = NetworkTime.time + smartNpc.respawnTime; // respawn in a while
return("DEAD");
}
if (EventAggro(smartNpc))
{
// target in attack range. try to cast a first skill on it
// (we may get a target while randomly wandering around)
if (smartNpc.skills.skills.Count > 0)
{
smartNpc.skills.currentSkill = ((SmartNpcSkills)smartNpc.skills).NextSkill();
}
else
{
Debug.LogError(name + " has no skills to attack with.");
}
smartNpc.movement.Reset();
return("IDLE");
}
if (EventDeathTimeElapsed(smartNpc))
{
} // don't care
if (EventRespawnTimeElapsed(smartNpc))
{
} // don't care
if (EventSkillFinished(smartNpc))
{
} // don't care
if (EventTargetDisappeared(smartNpc))
{
} // don't care
if (EventSkillRequest(smartNpc))
{
} // don't care, finish movement first
if (EventMoveRandomly(smartNpc))
{
} // don't care
return("MOVING"); // nothing interesting happened
}