void Start()
{
attackScript = GetComponent<InterfaceZombieAttack>();
spitZombieState = stateSZ.sensedPlayerNearby;
newRoamingPosition = Vector3.zero;
}
// Start is called before the first frame update
void Start()
{
attackScript = GetComponent <InterfaceZombieAttack>();
spitZombieState = stateSZ.sensedPlayerNearby;
hasReachedPatrolPoint = false;
if (nextPatrolPoint == null)
{
nextPatrolPoint = patrolPoints[0];
}
}
// Update is called once per frame
void Update()
{
switch (spitZombieState)
{
case stateSZ.sensedPlayerNearby:
spitZombieState = stateSZ.chasePlayerUntilInLos;
break;
case stateSZ.attacking:
if (isPlayerInsideAttackRange == true)
{
attackScript.IzombieAttack();
zombieNavmeshAgent.isStopped = true;
}
else
{
spitZombieState = stateSZ.chasePlayerUntilInLos;
zombieNavmeshAgent.isStopped = false;
}
break;
case stateSZ.chasePlayerUntilInLos:
if (isPlayerWithinLos() == true || isPlayerSensedNearby == true) // los should work only if the angle is in the front of zommbie or If very close
{
zombieNavmeshAgent.SetDestination(playerTransform.position);
}
else
{
// go to Roaming player state, after going to the last spotted position
if (zombieNavmeshAgent.remainingDistance <= zombieNavmeshAgent.stoppingDistance)
{
if (!zombieNavmeshAgent.hasPath || zombieNavmeshAgent.velocity.sqrMagnitude == 0f)
{
spitZombieState = stateSZ.roaming;
}
}
}
break;
case stateSZ.huntingPlayer: // this state is kinda a bit whacky : 1. Go to last spotted player Position 2. Patrol in 4 directions for sometime 3. Back to roaming state
break;
case stateSZ.roaming:
if (hasReachedPatrolPoint == true)
{
int rand = Random.Range(0, patrolPoints.Length - 1);
nextPatrolPoint = patrolPoints[rand];
NavMeshHit hit;
NavMesh.SamplePosition(nextPatrolPoint.position, out hit, targetSampleNavmeshRadiusAllowed, 1);
nextPatrolPoint.position = hit.position;
hasReachedPatrolPoint = false;
}
else
{
zombieNavmeshAgent.SetDestination(nextPatrolPoint.position);
if (!zombieNavmeshAgent.pathPending)
{
if (zombieNavmeshAgent.remainingDistance <= zombieNavmeshAgent.stoppingDistance)
{
if (!zombieNavmeshAgent.hasPath || zombieNavmeshAgent.velocity.sqrMagnitude == 0f)
{
hasReachedPatrolPoint = true;
}
}
}
}
if (isPlayerWithinLos() == true)
{
spitZombieState = stateSZ.chasePlayerUntilInLos;
}
break;
}
}
void Update()
{
switch(spitZombieState)
{
case stateSZ.sensedPlayerNearby:
enemyZombAgent.SetDestination(playerTransform.position);
if(fovScript.playerInFovSpotted==true)
{
spitZombieState = stateSZ.attacking;
enemyZombAgent.isStopped = true;
}
break;
case stateSZ.attacking:
if (fovScript.playerInFovSpotted == true)
{
attackScript.IzombieAttack();
}
else
{
enemyZombAgent.isStopped = false; // this is dangerous as we don't know where the NavMeshAgent destination is set to
if (checkPlayerInLineOfSight()==true){
spitZombieState = stateSZ.chasePlayerUntilInLos;
}else
{
spitZombieState = stateSZ.huntingPlayer;
}
}
break;
case stateSZ.chasePlayerUntilInLos:
if (checkPlayerInLineOfSight() == true)
{
enemyZombAgent.SetDestination(playerTransform.position);
if (fovScript.playerInFovSpotted == true)
{
spitZombieState = stateSZ.attacking;
enemyZombAgent.isStopped = true;
}
}
else
{
lastSpottedPlayerPosition = playerTransform.position;
spitZombieState = stateSZ.huntingPlayer;
enemyZombAgent.SetDestination(lastSpottedPlayerPosition);
}
break;
case stateSZ.huntingPlayer: // this state is kinda a bit whacky : 1. Go to last spotted player Position 2. Patrol in 4 directions for sometime 3. Back to roaming state
if (enemyTransform.position == lastSpottedPlayerPosition)
{
if (huntingTimer >= 0)
{
huntingTimer -= Time.deltaTime;
Vector3 randomDirection = Random.insideUnitSphere * huntRadius;
randomDirection = new Vector3(randomDirection.x, 0f, randomDirection.z);
randomDirection += transform.position;
NavMeshHit hit;
NavMesh.SamplePosition(randomDirection, out hit, huntRadius, 1);
lastSpottedPlayerPosition = hit.position;
}
else
{
huntingTimer = 10.0f;
spitZombieState = stateSZ.roaming;
}
}
else
{
enemyZombAgent.SetDestination(lastSpottedPlayerPosition);
}
if (checkPlayerInLineOfSight() == true)
{
huntingTimer = 10.0f;
spitZombieState = stateSZ.chasePlayerUntilInLos;
}
break;
case stateSZ.roaming:
if(waitTime>=3)
{
if(newRoamingPosition== Vector3.zero)
{
newRoamingPosition = getRandomRoamingPosition();
}
else if (enemyTransform.position!=newRoamingPosition)
{
enemyZombAgent.velocity = newRoamingPosition - enemyTransform.position;
enemyTransform.forward = enemyZombAgent.velocity.normalized;
}
else if(enemyTransform.position == newRoamingPosition)
{
newRoamingPosition = Vector3.zero;
waitTime = 0;
}
}else
{
waitTime += Time.deltaTime;
}
break;
}
}
