private void Awake()
{
Player player = FindObjectOfType <Player>();
_navMeshAgent = GetComponent <NavMeshAgent>();
_entity = GetComponent <Entity>();
_stateMachine = new StateMachine();
// Just want to explain this line further b/c there's a lot going on here.
// I believe what this is doing is registering a lambda function with StateMachine.OnStateChanged.
// This lamdba function receives "state", and simply called EntityStateMachine.OnStateChanged(state).
_stateMachine.OnStateChanged += state => OnEntityStateChanged?.Invoke(state);
Idle idle = new Idle();
ChasePlayer chasePlayer = new ChasePlayer(_navMeshAgent, player);
Attack attack = new Attack();
Dead dead = new Dead(_entity);
// Idle -> Chase
_stateMachine.AddTransition(
idle,
chasePlayer,
() => DistanceFlat(_navMeshAgent.transform.position, player.transform.position) < 5f
);
// Chase -> Attack
_stateMachine.AddTransition(
chasePlayer,
attack,
() => DistanceFlat(_navMeshAgent.transform.position, player.transform.position) <= 2f
);
/*
* // Attack -> Chase
* _stateMachine.AddTransition(
* attack,
* chasePlayer,
* () => DistanceFlat(_navMeshAgent.transform.position, player.transform.position) > 2f
* );
*/
// Any -> Dead
_stateMachine.AddAnyTransition(dead, () => _entity.Health <= 0);
_stateMachine.SetState(idle);
}
private void Awake()
{
var player = FindObjectOfType <Player>();
_entity = GetComponent <Entity.Entity>();
_navMeshAgent = GetComponent <NavMeshAgent>();
_stateMachine = new StateMachine();
_stateMachine.OnStateChanged += state => OnEntityStateChanged?.Invoke(state);
var idle = new Idle();
var chasePlayer = new ChasePlayer(_navMeshAgent, player);
var attack = new Attack();
var dead = new Dead(_entity);
_stateMachine.AddTransition(idle, chasePlayer, () => Vector3.Distance(_navMeshAgent.transform.position, player.transform.position) > 2f);
_stateMachine.AddTransition(chasePlayer, attack, () => Vector3.Distance(_navMeshAgent.transform.position, player.transform.position) < 2f);
_stateMachine.AddTransition(attack, chasePlayer, () => Vector3.Distance(_navMeshAgent.transform.position, player.transform.position) > 2f);
_stateMachine.AddAnyTransition(dead, () => _entity.Health <= 0);
_stateMachine.SetState(idle);
}