//##############################################################################################
// When the player enters a trigger around the enemy, register for an update to react.
//##############################################################################################
public void OnTriggerEnter(Collider other)
{
if (other.tag == "Player")
{
EnemyManagerComponent.RegisterUpdate(this);
}
}
//##############################################################################################
// If we ever encounter the player, shoot at them. Otherwise, patrol from A to B, wait, then
// patrol back.
//##############################################################################################
public override void EnemyUpdate()
{
base.EnemyUpdate();
float playerDistance = (transform.position - FirstPersonPlayerComponent.player.transform.position).magnitude;
// any detection of the player during the patrol stops and shoot
if (exampleState != ExampleState.Shooting && playerDistance < SHOOT_RADIUS)
{
exampleState = ExampleState.Shooting;
StopMoving();
rotation.SetAnimationIndex(SHOOT_ANIMATION_INDEX);
}
// Pretty simple finite state machine
if (exampleState == ExampleState.Idle)
{
if (patrolIdleTimer.Finished())
{
exampleState = ExampleState.Patrolling;
MoveToPosition(patrollingAToB ? patrolPointB.position : patrolPointA.position);
rotation.SetAnimationIndex(WALK_ANIMATION_INDEX);
patrollingAToB = !patrollingAToB;
}
}
else if (exampleState == ExampleState.Patrolling)
{
if (AtGoal())
{
patrolIdleTimer.Start();
exampleState = ExampleState.Idle;
rotation.SetAnimationIndex(IDLE_ANIMATION_INDEX);
}
}
else if (exampleState == ExampleState.Shooting)
{
if (playerDistance > SHOOT_RADIUS)
{
exampleState = ExampleState.Idle;
patrolIdleTimer.Start();
}
bool hasShootToken = AttackTokenComponent.RequestToken(gameObject);
if (shootTimer.Finished() && hasShootToken)
{
Vector3 toPlayer = FirstPersonPlayerComponent.player.transform.position - transform.position;
toPlayer.y = 0.0f;
transform.rotation = Quaternion.LookRotation(toPlayer);
gun.Shoot();
shootTimer.Start();
rotation.SetAnimationIndex(IDLE_ANIMATION_INDEX);
}
}
// Make sure to re-register for next frames update if we're still near enough!
if (playerDistance < UDPATE_RADIUS)
{
EnemyManagerComponent.RegisterUpdate(this);
}
}
//##############################################################################################
// If the enemy is damaged, register to update it and react
//##############################################################################################
public virtual void PlayDamagedSequence()
{
EnemyManagerComponent.RegisterUpdate(this);
}
