class_name StateMachine
extends Node

signal state_changed(previous: int, current: int)

var current_state := 0
var state_names: Array[StringName] = [
	&"ground",
	&"ground",
	&"air",
	&"ground",
	&"ground",
	&"air",
	&"guarding",
	&"charging",
	&"bladeChain",
	&"burstCharge",
	&"bursting",
	&"hitstun",
]


func change_state(next_state: int) -> void:
	if next_state == current_state:
		return
	var previous := current_state
	current_state = next_state
	state_changed.emit(previous, current_state)


func get_current_state_name() -> StringName:
	if current_state >= 0 and current_state < state_names.size():
		return state_names[current_state]
	return &"any"