Refactor SFX into a SoundManager (#45)

* Refactor SFX into a SoundManager
Add SoundManager able to play arbitrary sound streams
Make SoundManager use only one AudioStreamPlayer per bus
Add StyleBoxWithSound
Add Kenney UI Audio click3.wav
Removed sound play via pressed signals in MainMenu
Make Button_MainMenu pressed style StyleBoxWithSound with click3.wav sound

* Add playing mp3 files by name to the SoundManager

* Fix missing quotation

3 files changed, 45 insertions, 0 deletions

diff --git a/game/addons/kenney_ui_audio/LICENSE.txt b/game/addons/kenney_ui_audio/LICENSE.txt
new file mode 100644
index 0000000..f1f770a
--- /dev/null
+++ b/game/addons/kenney_ui_audio/LICENSE.txt
@@ -0,0 +1,21 @@
+	
+
+	UI SFX Set
+
+	by  Kenney Vleugels (Kenney.nl)
+
+			------------------------------
+
+	License (Creative Commons Zero, CC0)
+	http://creativecommons.org/publicdomain/zero/1.0/
+
+	You may use these assets in personal and commercial projects.
+	Credit (Kenney or www.kenney.nl) would be nice but is not mandatory.
+
+			------------------------------
+
+	Donate:   http://support.kenney.nl
+	Request:  http://request.kenney.nl
+
+	Follow on Twitter for updates:
+	@KenneyNL
\ No newline at end of file
diff --git a/game/addons/kenney_ui_audio/click3.wav b/game/addons/kenney_ui_audio/click3.wav
new file mode 100644
index 0000000..73dc62e
--- /dev/null
+++ b/game/addons/kenney_ui_audio/click3.wav
diff --git a/game/addons/kenney_ui_audio/click3.wav.import b/game/addons/kenney_ui_audio/click3.wav.import
new file mode 100644
index 0000000..1212f15
--- /dev/null
+++ b/game/addons/kenney_ui_audio/click3.wav.import
@@ -0,0 +1,24 @@
+[remap]
+
+importer="wav"
+type="AudioStreamWAV"
+uid="uid://bsldcs3l8s7ug"
+path="res://.godot/imported/click3.wav-191e18de041e05b52c4992cf5dba790b.sample"
+
+[deps]
+
+source_file="res://addons/kenney_ui_audio/click3.wav"
+dest_files=["res://.godot/imported/click3.wav-191e18de041e05b52c4992cf5dba790b.sample"]
+
+[params]
+
+force/8_bit=false
+force/mono=false
+force/max_rate=false
+force/max_rate_hz=44100
+edit/trim=false
+edit/normalize=false
+edit/loop_mode=0
+edit/loop_begin=0
+edit/loop_end=-1
+compress/mode=0