Rework player state system to use an event subscription system to avoid directly calling methods on individual state and having to worry about validity

Entities/Characters/Utility/Components/Scripts/movement_component.gd

@@ -0,0 +1,21 @@
+extends Node
+class_name MovementComponent
+
+# movement_component.gd
+# A simple script that checks for movement input and emits a signal with the
+# direction vector
+
+signal MovementQueued(direction_vector: Vector2)
+signal NoMovementQueued
+
+var direction_vector: Vector2
+
+func _physics_process(_delta: float) -> void:
+	var dv := Input.get_vector("ui_left", "ui_right", "ui_up", "ui_down")
+	
+	if dv:
+		direction_vector = dv
+		MovementQueued.emit(dv)
+	else:
+		direction_vector = Vector2.ZERO
+		NoMovementQueued.emit()