beta-1.3/restructure-files (#2)

Reviewed-on: #2

Entities/Characters/Player/Scripts/state_machine.gd

@@ -0,0 +1,58 @@
+extends Node
+class_name PlayerStateMachine
+
+signal StateChanged
+
+enum States {
+	UNSET, IDLE, WALKING, USING_ITEM_A, DRAWING_BOW, FIRING_ARROW,
+	SITTING, CUTSCENE, PLAY_ANIMATION
+}
+
+@export var states_container: Node
+@export var current_state: BaseState
+
+var state_dict := {}
+var queued_state: PlayerStateMachine.States = PlayerStateMachine.States.UNSET
+var queued_parameters: Dictionary = {}
+
+# Public Methods
+func GetCurrentStateEnum() -> States:
+	return current_state.GetStateEnum()
+
+
+func QueueStateChange(to_state_enum: PlayerStateMachine.States, extra_parameters: Dictionary = {}) -> void:
+	queued_state = to_state_enum
+	queued_parameters = extra_parameters
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	var children := states_container.get_children()
+	for child in children:
+		if child is not BaseState:
+			continue
+		var state := child as BaseState
+		state_dict[state.GetStateEnum()] = state
+	
+	if current_state:
+		current_state.Enter({})
+
+
+func _process(delta: float) -> void:
+	if current_state:
+		current_state.Update(delta)
+	
+	if queued_state != PlayerStateMachine.States.UNSET:
+		_swap_state()
+
+
+func _swap_state() -> void:
+	if current_state:
+		current_state.Exit()
+		
+	current_state = state_dict[queued_state] as BaseState
+	current_state.Enter(queued_parameters)
+	queued_state = PlayerStateMachine.States.UNSET
+	queued_parameters = {}
+	
+	StateChanged.emit()