gd: added input addon

guide_examples/mouse_position_2d/godot_head.gd

@@ -0,0 +1,15 @@
+extends Node2D
+
+@export var lifetime_seconds:float = 5.0
+var _remaining_time_seconds:float = 0
+
+func _ready():
+	_remaining_time_seconds = lifetime_seconds
+
+func _process(delta:float) -> void:
+	_remaining_time_seconds -= delta
+	if _remaining_time_seconds <= 0:
+		queue_free()
+		return
+	
+	modulate.a = _remaining_time_seconds / lifetime_seconds