changed the way the fall sprite works

objects/environment/bubble/bubble.gd

@@ -3,6 +3,7 @@ extends Area2D
 export var speed = 16.0
 
 onready var sprite = $Sprite
+onready var activation_timer = $ActivationTimer
 
 var lifetime = 0.0
 
@@ -15,10 +16,16 @@ func _physics_process(delta):
 		sprite.position.x = sin(lifetime * 4.0) * 4.0
 	position.y -= speed * delta
 
-func _on_Bubble_body_entered(body):
+func pop():
 	sprite.frame_coords.y = 1
 	speed = 0.0
 	get_tree().create_timer(0.5, false).connect("timeout", self, "queue_free")
+
+func _on_Bubble_body_entered(body):
 	if body.is_in_group("player"):
 		body.oxygen_timer.start()
 		Audio.play_sound(Audio.a_bubble,Audio.ac_die)
+		pop()
+	elif activation_timer.time_left == 0:
+		pop()
+		

objects/environment/bubble/bubble.tscn

@@ -17,5 +17,11 @@ vframes = 2
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]
 shape = SubResource( 1 )
 
+[node name="ActivationTimer" type="Timer" parent="."]
+autostart = true
+__meta__ = {
+"_editor_description_": "timer until the bubble can be broken by objects other than the player"
+}
+
 [connection signal="area_entered" from="." to="." method="_on_area_entered"]
 [connection signal="body_entered" from="." to="." method="_on_Bubble_body_entered"]

objects/environment/bubble/bubble_spawner.tscn

@@ -0,0 +1,11 @@
+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://objects/environment/bubble/bubble.tscn" type="PackedScene" id=1]
+[ext_resource path="res://scripts/random_spawner.gd" type="Script" id=2]
+
+[node name="BubbleSpawner" type="Node2D"]
+position = Vector2( 16, 158 )
+script = ExtResource( 2 )
+scene = ExtResource( 1 )
+extents = Rect2( 0, 0, 16, 8 )
+delay = 3.0