void Update()
{
if (character == null)
{
return;
}
// random play an idle sound.
if (Time.time > soundTime + soundTimeDuration)
{
character.PlayIdleSound();
soundTimeDuration = Random.Range(0, IdleSoundDelay);
soundTime = Time.time;
}
// get attack distance from primary weapon.
DistanceAttack = character.PrimaryWeaponDistance;
float distance = Vector3.Distance(PositionTarget, this.gameObject.transform.position);
Vector3 targetDirectiom = (PositionTarget - this.transform.position);
Quaternion targetRotation = this.transform.rotation;
float str = TurnSpeed * Time.time;
// rotation to look at a target
if (targetDirectiom != Vector3.zero)
{
targetRotation = Quaternion.LookRotation(targetDirectiom);
targetRotation.x = 0;
targetRotation.z = 0;
transform.rotation = Quaternion.Lerp(transform.rotation, targetRotation, str);
}
// if Target is exist
if (ObjectTarget != null)
{
// lifeTimeTemp = Time.time;
PositionTarget = ObjectTarget.transform.position;
if (aiTime <= 0)
{
//aiState = Random.Range (0, 4);
aiTime = Random.Range(10, 100);
}
else
{
aiTime--;
}
//Debug.Log(distance + "<="+ DistanceAttack);
// attack only distance.
if (distance <= DistanceAttack)
{
// Debug.Log("Attack : "+targetDirectiom);
Attack(targetDirectiom);
}
else
{
if (distance <= DistanceMoveTo)
{
// rotation facing to a target.
transform.rotation = Quaternion.Lerp(transform.rotation, targetRotation, str);
}
else
{
// if target is out of distance
ObjectTarget = null;
if (aiState == 0)
{
aiState = 1;
aiTime = Random.Range(10, 500);
PositionTarget = positionTemp + new Vector3(Random.Range(-PatrolRange, PatrolRange), 0, Random.Range(-PatrolRange, PatrolRange));
}
}
}
}
else
{
float length = float.MaxValue;
for (int t = 0; t < TargetTag.Length; t++)
{
// Finding all the targets by Tags.
GameObject[] targets = (GameObject[])GameObject.FindGameObjectsWithTag(TargetTag [t]);
if (targets != null && targets.Length > 0)
{
for (int i = 0; i < targets.Length; i++)
{
float distancetargets = Vector3.Distance(targets [i].gameObject.transform.position, this.gameObject.transform.position);
if ((distancetargets <= length && (distancetargets <= DistanceMoveTo || distancetargets <= DistanceAttack)) && ObjectTarget != targets [i].gameObject)
{
length = distancetargets;
ObjectTarget = targets [i].gameObject;
}
}
}
}
if (aiState == 0)
{
// AI state == 0 mean AI is free, so moving to anywhere
aiState = 1;
aiTime = Random.Range(10, 200);
PositionTarget = positionTemp + new Vector3(Random.Range(-PatrolRange, PatrolRange), 0, Random.Range(-PatrolRange, PatrolRange));
}
if (aiTime <= 0)
{
// random AI state
aiState = Random.Range(0, 4);
aiTime = Random.Range(10, 200);
}
else
{
aiTime--;
}
}
character.MoveToPosition(PositionTarget);
}
