Clean up path and names

scripts/state_machine/state.gd

@@ -0,0 +1,19 @@
+class_name State
+extends Node
+
+var state_machine = null
+
+func handle_input(_event: InputEvent):
+	pass
+	
+func update(_delta: float):
+	pass
+	
+func physics_update(_delta: float):
+	pass
+	
+func enter(_msg: Dictionary = {}):
+	pass
+	
+func exit():
+	pass

scripts/state_machine/state_machine.gd

@@ -0,0 +1,34 @@
+class_name StateMachine
+extends Node
+
+signal transitioned(state_name)
+@export var state: State
+
+func _ready():
+	await owner.ready
+	
+	for child in get_children():
+		child.state_machine = self
+	
+	state.enter()
+
+func _unhandled_input(event):
+	state.handle_input(event)
+
+func _process(delta):
+	state.update(delta)
+
+func _physics_process(delta):
+	state.physics_update(delta)
+	
+func transition_to(target_state_name: String, msg: Dictionary = {}):
+	if not has_node(target_state_name):
+		push_warning("No state with name " + target_state_name)
+		return
+	
+	state.exit()
+	state = get_node(target_state_name)
+	state.enter(msg)
+	emit_signal("transitioned", state.name)
+	
+