Refactor

MyChar.gd

@@ -0,0 +1,19 @@
+extends CharacterBody2D
+
+@export var speed := 80.0 # px/s
+
+@onready var sprite: AnimatedSprite2D = $sprite
+var input_dir := Vector2.ZERO
+
+func _ready() -> void:
+    $sprite.play("idle")
+
+func _physics_process(_dt: float) -> void:
+    velocity = speed * input_dir.normalized()
+    move_and_slide()
+
+    if input_dir != Vector2.ZERO:
+        if sprite.animation != "walk":
+            sprite.play("walk")
+    elif sprite.animation != "idle":
+        sprite.play("idle")