Game #3: Space Shooter

space-shooter/Scenes/Objects/Enemy.gd

@@ -0,0 +1,30 @@
+extends Area2D
+
+const Explosion = preload("res://Scenes/ExplosionEffect.tscn")
+
+export (int) var speed = 50
+export (int) var armor = 3
+
+func _process(delta):
+	position.x -= speed * delta
+
+func _on_Enemy_body_entered(body):
+	body.create_hit_effect()
+	body.queue_free()
+	armor -= 1
+	
+	if armor <= 0:
+		var root = get_tree().current_scene
+		if root.is_in_group("World"):
+			root.score += 10
+		explode()
+		queue_free()
+
+func _on_VisibilityNotifier2D_screen_exited():
+	queue_free()
+
+
+func explode():
+	var explosion = Explosion.instance()
+	explosion.global_position = global_position
+	get_tree().current_scene.add_child(explosion)