state machine

extends Node

class_name StateMachine

var states: Dictionary={}
var current_state: State

func _ready():
    yield(get_parent(), "ready")

    for state in get_children():
        states[state.name] = state
    for state in get_children():
        state.states = self.states
        state.player = get_parent()

    current_state = states["Idle"]
    enter_state()

func enter_state() -> void:
    current_state.enter()

func _physics_process(_delta):
    current_state.logic()
    if current_state.get_transition() != null:
        change_state(current_state.get_transition())

func change_state(nextState: State) -> void:
    current_state = nextState
    enter_state()