gd: added input addon

guide_examples/shared/fireball/fireball.gd

@@ -0,0 +1,13 @@
+extends Node2D
+
+@export var speed:float = 600
+var direction:Vector2 = Vector2.ZERO
+
+
+func _ready():
+	await get_tree().create_timer(5).timeout
+	queue_free()
+
+
+func _process(delta):
+	position += speed * direction * delta