got four-direction movement working

scripts/debug_layer.gd

@@ -0,0 +1,16 @@
+@tool
+class_name DebugLayer
+extends CanvasLayer
+
+@export var variables_to_track: Array[String]
+
+var debug_label_scene:= preload("res://scenes/debug_label.tscn")
+
+@onready var v_box_container: VBoxContainer = $VBoxContainer
+
+func _ready() -> void:
+	for variable in variables_to_track:
+		var new_debug_label:= debug_label_scene.instantiate()
+		new_debug_label.target = get_parent()
+		new_debug_label.variable_name = variable
+		v_box_container.add_child(new_debug_label)

scripts/debug_layer.gd.uid

@@ -0,0 +1 @@
+uid://dy34r8x6ofyaa

scripts/new_player.gd

@@ -1,28 +0,0 @@
-#@tool
-#@icon
-#class_name
-extends CharacterBody2D
-## Documentation comments
-
-## Signals
-## Enums
-## Constants
-## @export variables
-@export var speed: int = 10
-## Regular variables
-var input_vector: Vector2
-## @onready variables
-
-## Overridden built-in virtual methods
-#func _init() -> void:
-#func _enter_tree() -> void:
-#func _ready() -> void:
-#func _process(delta: float) -> void:
-func _physics_process(_delta: float) -> void:
-	input_vector = Input.get_vector("left", "right", "up", "down")
-	velocity = input_vector * speed
-	move_and_slide()
-## Remaining virtual methods
-## Overridden custom methods
-## Remaining methods
-## Subclasses

scripts/player.gd

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+#@tool
+#@icon
+#class_name
+extends CharacterBody2D
+## Documentation comments
+
+enum FaceDirection {LEFT = 0, RIGHT = 1, UP = 2, DOWN = 3}
+enum State {IDLE, WALK}
+
+const SPEED: int = 48
+## @export variables
+
+## Regular variables
+var current_direction: FaceDirection = FaceDirection.DOWN: 
+	set = set_direction
+var current_direction_string: String = "down"
+
+var current_state: State = State.IDLE:
+	set = set_state
+var current_state_string: String = "idle"
+
+var input_vector: Vector2
+
+## @onready variables
+@onready var player_sprite: AnimatedSprite2D = $PlayerSprite
+
+## Overridden built-in virtual methods
+#func _init() -> void:
+#func _enter_tree() -> void:
+#func _ready() -> void:
+#func _process(delta: float) -> void:
+func _physics_process(_delta: float) -> void:
+	input_vector = Vector2.ZERO
+	if Input.is_action_pressed("left"):
+		input_vector = Vector2.LEFT
+		current_direction = FaceDirection.LEFT
+		current_state = State.WALK
+	elif Input.is_action_pressed("right"):
+		input_vector = Vector2.RIGHT
+		current_direction = FaceDirection.RIGHT
+		current_state = State.WALK
+	elif Input.is_action_pressed("up"):
+		input_vector = Vector2.UP
+		current_direction = FaceDirection.UP
+		current_state = State.WALK
+	elif Input.is_action_pressed("down"):
+		input_vector = Vector2.DOWN
+		current_direction = FaceDirection.DOWN
+		current_state = State.WALK
+	else: current_state = State.IDLE
+	velocity = input_vector * SPEED
+	move_and_slide()
+## Remaining virtual methods
+## Overridden custom methods
+## Remaining methods
+func set_direction(new_direction: FaceDirection) -> void:
+	current_direction = new_direction
+	current_direction_string = str(FaceDirection.keys()[new_direction]).to_lower()
+	print_debug("New direction is %s" % current_direction_string)
+
+func set_state(new_state: State) -> void:
+	current_state = new_state
+	current_state_string = str(State.keys()[new_state]).to_lower()
+	var animation_string = current_state_string + "_" + current_direction_string
+	player_sprite.play(animation_string)
+## Subclasses