finished spawning

_subsections/sec03/lesson-13.org

@@ -1,9 +1,70 @@
 #+HTML_HEAD: <link rel="stylesheet" type="text/css" href="../../../../../_share/media/css/org-mode.css" />
 #+HTML_HEAD: <link rel="stylesheet" type="text/css" href="../../../_share/media/css/godot.css" />
-#+title: Section 03 - Lesson 13 | Spawn Timer
+#+title: Section 03 - Lesson 13, 14 | Spawn Timer, Spawning gems
 
 * Links
 - [[../../toc.org][TOC - Godot Notes]]
-- [[https://www.udemy.com/course/jumpstart-to-2d-game-development-godot-4-for-beginners/learn/lecture/45070483#announcements][S03:L22.13 - Spawn Timer]]
+- [[https://www.udemy.com/course/jumpstart-to-2d-game-development-godot-4-for-beginners/learn/lecture/45070483#announcements][S03:L24.13 - Spawn Timer]]
+- [[https://www.udemy.com/course/jumpstart-to-2d-game-development-godot-4-for-beginners/learn/lecture/45070485#announcements][S03:L25.14 - Spawning Gems]]
 
 * Notes
+
+** removing connected nodes
+- nodes that are connected must be disconnected before deletion
+- otherwise strange things happen
+
+** Timing
+- add a child node
+- search for Timer
+
+*** properties
+- autostart: whether it starts as soon as scene is ready in tree
+- one shot: time once and stop
+- wait time: the actual time it goes
+
+*** signals
+- timeout
+  - got to Inspector->Node
+  - timeout emits a signal when the wait time hits zero
+
+** Spawning Gems
+
+Put the following in the script that you want to create nodes in based on a scene:
+
+#+BEGIN_SRC gdscript
+@export var gem_scene: PackedScene
+#+END_SRC
+
+*** terms
+- =@export=
+  - makes the variable accessible and modifiable from the Godot editor
+  - allows assigning variables through the interface
+
+    #+ATTR_HTML: :width 300px
+    [[file:../../../_share/media/albert/img/section03/S03_L15_EX01.png]]
+
+- =PackedScene=
+  - resource that holds a scene in a packed, ready to load state
+
+*** what it does
+allows us to create instances of the scene
+
+- drag a scene into the property in the inspector
+- call instance
+
+#+BEGIN_SRC gdscript
+func spawn_gem() -> void:
+	var gem_instance = gem_scene.instance()
+	add_child(gem_instance)
+#+END_SRC
+
+** how to explicitly assign the type of a custom script
+- in the script near the top type in
+  #+BEGIN_SRC gdscript
+  class_name CustomName
+  #+END_SRC
+
+- then override on assigning the value
+  #+BEGIN_SRC gdscript
+  var new_gem: CustomName = gem_scene.instantiate()
+  #+END_SRC

toc.org

@@ -19,4 +19,4 @@ https://www.udemy.com/course/jumpstart-to-2d-game-development-godot-4-for-beginn
 *** [[./_subsections/sec03/lesson-07.org][Lesson 07, 08 | Moving the Gem, Removing the Gem]]
 *** [[./_subsections/sec03/lesson-09.org][Lesson 09 | Export Annotation]]
 *** [[./_subsections/sec03/lesson-11.org][Lesson 11, 12 | Signals, Custom Signals]]
-*** [[./_subsections/sec03/lesson-13.org][Lesson 13 | Spawn Timer]]
+*** [[./_subsections/sec03/lesson-13.org][Lesson 13, 14 | Spawn Timer, Spawning items]]