virtual public void Revive()
{
curedEnemies.Remove(this);
targeted = false;
health = maxHealth;
agent.stoppingDistance = initialStoppingDistance;
agent.SetDestination(transform.position);
nextPatrolPoint = 0;
state = State.DEFAULT;
defaultSubState = DefaultSubState.NOT_DEFAULT;
attackSubState = AttackSubState.NOT_ATTACKING;
searchSubState = SearchSubState.NOT_SEARCHING;
isStunned = false;
sprite.color = Color.white;
canStun = true;
audioSource.clip = walkSounds;
GetComponent <Collider>().enabled = true;
killed = false;
enemyAnimations.SetBool("Cured", false);
StopAllCoroutines();
}
virtual protected void PerformSearchingState()
{
switch (searchSubState)
{
case SearchSubState.NOT_SEARCHING:
pointsToSearch.Clear();
agent.SetDestination(playerTransform.position);
searchSubState = SearchSubState.CHECK_LAST_POS;
break;
case SearchSubState.CHECK_LAST_POS:
//Exit Case: enemy arrives at last known position of player
if (agent.remainingDistance < agent.stoppingDistance)
{
searchSubState = SearchSubState.PICK_SEARCH_POINTS;
}
break;
case SearchSubState.PICK_SEARCH_POINTS:
//pick three new search points around the enemy's location
for (int i = 0; i < 3; i++)
{
pointsToSearch.Add(transform.position + (new Vector3(Random.Range(-1f, 1f), 0f, Random.Range(-1f, 1f)).normalized * 2.5f));
}
searchSubState = SearchSubState.ARRIVED_AT_POINT;
break;
case SearchSubState.MOVING_TO_POINT:
if (agent.remainingDistance < agent.stoppingDistance)
{
searchSubState = SearchSubState.ARRIVED_AT_POINT;
}
break;
case SearchSubState.ARRIVED_AT_POINT:
if (pointsToSearch.Count > 0)
{
StartCoroutine(SetDestinationAfter(pointsToSearch[0], timeAtPosition));
pointsToSearch.RemoveAt(0);
searchSubState = SearchSubState.STOPPED_AT_POINT;
}
else
{
StopCoroutine("SetDestinationAfter");
searchSubState = SearchSubState.DONE;
}
break;
case SearchSubState.STOPPED_AT_POINT:
if (destinationChanged)
{
searchSubState = SearchSubState.MOVING_TO_POINT;
}
break;
case SearchSubState.DONE:
//Currently Inaccessible
break;
}
}
public void LoadCheckpoint(LevelManager.CheckpointData.EnemyData data)
{
transform.position = data.worldPosition;
transform.rotation = data.worldRotation;
transform.parent = data.parent;
if (!data.cured)
{
killed = false;
GetComponent <Collider>().enabled = true;
enemyAnimations.SetBool("Cured", false);
health = data.health;
state = State.DEFAULT;
attackSubState = AttackSubState.NOT_ATTACKING;
searchSubState = SearchSubState.NOT_SEARCHING;
defaultSubState = DefaultSubState.NOT_DEFAULT;
audioSource.clip = walkSounds;
curedEnemies.Remove(this);
targeted = false;
}
else
{
killed = true;
}
}
override protected IEnumerator Respawn()
{
foreach (SpriteRenderer sr in GetComponentsInChildren <SpriteRenderer>())
{
sr.enabled = false;
}
health = maxHealth;
transform.position = initialPosition;
transform.rotation = initialRotation;
agent.stoppingDistance = initialStoppingDistance;
agent.SetDestination(transform.position);
nextPatrolPoint = 0;
state = State.DEFAULT;
defaultSubState = DefaultSubState.NOT_DEFAULT;
attackSubState = AttackSubState.NOT_ATTACKING;
searchSubState = SearchSubState.NOT_SEARCHING;
isStunned = false;
sprite.color = Color.white;
canStun = true;
audioSource.clip = walkSounds;
yield return(new WaitForSeconds(respawnTime));
foreach (SpriteRenderer sr in GetComponentsInChildren <SpriteRenderer>())
{
sr.enabled = true;
}
GetComponent <Collider>().enabled = true;
killed = false;
enemyAnimations.SetBool("Cured", false);
StopAllCoroutines();
}
virtual protected void PerformAILogic()
{
//Reset stopping distance if enemy is aware of player
if (state != State.DEFAULT)
{
agent.stoppingDistance = initialStoppingDistance;
}
//Calculate distance to player
float distance = Vector3.Distance(playerTransform.position, transform.position);
//reset location flags
hasLineOfSight = false;
inChaseRadius = false;
inAgroRadius = false;
inAttackRadius = false;
//set location flags
if (distance <= chaseLimitRadius)
{
inChaseRadius = true;
hasLineOfSight = RaycastToPlayer();
if (distance <= agroRadius && hasLineOfSight)
{
inAgroRadius = true;
if (distance <= attackRaduis)
{
inAttackRadius = true;
}
}
}
if (PlayerManager.instance.isAlive)
{
//Implementation of highest level state machine
switch (state)
{
case State.DEFAULT:
//Exit case: Player enters agro radius
if (inAgroRadius)
{
state = State.AGRO;
defaultSubState = DefaultSubState.NOT_DEFAULT;
PerformAgroState();
}
else
{
PerformDefaultState();
}
break;
case State.AGRO:
//Exit case: Player enters attack radius
if (inAttackRadius)
{
state = State.ATTACKING;
PerformAttackState();
}
//Exit case: Player breaks line of sight or leaves chase radius
else if (!hasLineOfSight)
{
state = State.SEARCHING;
PerformSearchingState();
}
else
{
PerformAgroState();
}
break;
case State.ATTACKING:
//Exit Case: enemy finished attacking, return to agro
if (attackSubState == AttackSubState.DONE)
{
state = State.AGRO;
attackSubState = AttackSubState.NOT_ATTACKING;
PerformAgroState();
}
else
{
PerformAttackState();
}
break;
case State.SEARCHING:
//Exit case: Searching concludes without finding player
if (searchSubState == SearchSubState.DONE)
{
state = State.DEFAULT;
searchSubState = SearchSubState.NOT_SEARCHING;
PerformDefaultState();
}
//Exit case: Enemy finds player
else if (hasLineOfSight)
{
state = State.AGRO;
searchSubState = SearchSubState.NOT_SEARCHING;
}
else
{
PerformSearchingState();
}
break;
default:
Debug.LogError("Unrecognized State");
break;
}
}
else
{
searchSubState = SearchSubState.NOT_SEARCHING;
attackSubState = AttackSubState.NOT_ATTACKING;
state = State.DEFAULT;
}
}