compsci_godot_albert/_subsections/sec03/lesson-16.org

#+title: Section 03 - Lesson 16, 17 | Game Over, Sound End Game
#+HTML_HEAD: <link rel="stylesheet" type="text/css" href="../../_share/media/css/godot.css" />

* Links
- [[../../toc.org][TOC - Godot Notes]]
- [[https://www.udemy.com/course/jumpstart-to-2d-game-development-godot-4-for-beginners/learn/lecture/45070491#announcements][S03:L27.16 - Game Over]]
- [[https://www.udemy.com/course/jumpstart-to-2d-game-development-godot-4-for-beginners/learn/lecture/45070493#announcements][S03:L28.17 - Sound / End of Game]]

* Notes

** stopping the game
1. create a function that handles all cleanup
   1. stop the timer
      - drag + CMD and drop Timer to create a reference
      - timer.stop
   2. set all node children process to false
      - Node function =get_children= will get them all3
      - iterate through them and =set_process(false)=

** sound
*** import pane
- the scene panel on the upper left has an Import pane
        #+ATTR_HTML: :width 600px
          file:../../_share/media/img/albert/section03/S03_L16_E01.png

- this allows you to see details of items in the filesystem
        #+ATTR_HTML: :width 400px
          file:../../_share/media/img/albert/section03/S03_L16_E03.png

*** changing details of imported items
1. make whatever changes you want, e.g. turn on "Loop"
2. then click the Reimport button

        #+ATTR_HTML: :width 400px
          file:../../_share/media/img/albert/section03/S03_L16_E04.png

*** audio nodes
- Node->Node2D->AudioListener2D
  - overrides location sounds are heard from

- Node->Node2D->AudioStreamPlayer2D
  - plays positionnal sound in 2D space

- Node->AudioStreamPlayer
  - simple audio player
    - Playing: plays in the *GAME EDITOR*
    - Autoplay: plays as soon as it is loaded into the scene tree

*** create background music
- add new Audio node to the scene panel on the Game scene
  - use AudioStreamPlayer bc we don't care about position

- drag the audio file into Audio node->Inspector->AudioStreamPLayer->Stream

        #+ATTR_HTML: :width 600px
          file:../../_share/media/img/albert/section03/S03_L16_E05.png

  - you'll be able to see it when it's loaded
          #+ATTR_HTML: :width 600px
            file:../../_share/media/img/albert/section03/S03_L16_E06.png

- set Autoplay to "ON"

*** add effects
- use AudioStreamPlayer2D bc it has positioning
- CMD+drag the AudioStreamPlayer2D node to the game.gd script so we can play it
- call the effect when something happens (e.g. a gem hits the panel)
- find the position of where the even happens "area.position"
 #+BEGIN_SRC gdscript
 audio_stream_player_2d.position = area.position
 audio_stream_player_2d.play()
 #+END_SRC

*** add game over sound
- first make sure no other sound such as effects sounds are playing.
- call "stop()" on all such nodes
    #+BEGIN_SRC gdscript
    audio_stream_player_2d.stop()
    #+END_SRC

- load the game over sounds using "preload"
  - CMD+drag the sound file from the filesystem to the game.gd script
  - godot will automatically create a constant with the file name
  - godot will also set that file to "preload" with the appropriate file path

- set the =stream= property of =audio_stream_player_2d= to the preloaded sound and play it

    #+BEGIN_SRC gdscript
    audio_stream_player_2d.stream = EXPLODE
    audio_stream_player_2d.play()
    #+END_SRC

- put all this into a function and add it to the game​_​over function