Add Keychain plugin for Controls tab (#15)

* Add modified Keychain plugin for future Controls tab

See https://github.com/Orama-Interactive/Keychain/tree/4.x
Added Events autoload singleton for global eventing namespace
Added Events.Options for global options functionality

* Add Controls tab via Keychain plugin
Use Events.Options for save, load, and reset of settings
Separate OptionMenu tabs into scene files
Add locale saving and loading
Refactor SettingNodes scripts for more generalized use
Remove random prints
Remove useless spinbox signal connection
Make Resolution consistently use Vector2i

* Implement Godot project overrides for resolution and window mode

	Overrides are necessary as Godot does not load resolution or window mode on startup, so an override is necessary to ensure this happens.

Add null checks to SettingHSlider and SettingOptionButton

* Fix incorrect resolution value in ResolutionSelector

* Correct project settings override behavior in editor

Godot normally tries to overwrite the project settings in the editor, a template feature tag must be used to prevent the editor from overwriting the project.godot settings.

* Fix Orama-Interactive/Keychain#8

2 files changed, 51 insertions, 7 deletions

diff --git a/game/src/OptionMenu/SettingNodes/SettingHSlider.gd b/game/src/OptionMenu/SettingNodes/SettingHSlider.gd
index da9348f..cf2adf4 100644
--- a/game/src/OptionMenu/SettingNodes/SettingHSlider.gd
+++ b/game/src/OptionMenu/SettingNodes/SettingHSlider.gd
@@ -10,10 +10,17 @@ var setting_name : String = "SettingHSlider"
 @export
 var default_value : float = 0
 
+func _ready():
+	Events.Options.load_settings.connect(load_setting)
+	Events.Options.save_settings.connect(save_setting)
+	Events.Options.reset_settings.connect(reset_setting)
+
 func load_setting(file : ConfigFile):
+	if file == null: return
 	value = file.get_value(section_name, setting_name, default_value)
 
 func save_setting(file : ConfigFile):
+	if file == null: return
 	file.set_value(section_name, setting_name, value)
 
 func reset_setting():
diff --git a/game/src/OptionMenu/SettingNodes/SettingOptionButton.gd b/game/src/OptionMenu/SettingNodes/SettingOptionButton.gd
index 46fc825..3a5c979 100644
--- a/game/src/OptionMenu/SettingNodes/SettingOptionButton.gd
+++ b/game/src/OptionMenu/SettingNodes/SettingOptionButton.gd
@@ -8,15 +8,52 @@ var section_name : String = "Setting"
 var setting_name : String = "SettingOptionMenu"
 
 @export
-var default_value : int = 0
+var default_selected : int = -1:
+	get: return default_selected
+	set(v):
+		if v == -1:
+			default_selected = -1
+			return
+		default_selected = v % item_count
 
-func load_setting(file : ConfigFile):
-	selected = file.get_value(section_name, setting_name, default_value)
+@export
+var add_nonstandard_value := false
+
+func _get_value_for_file(select_value : int):
+	if select_value > -1:
+		return get_item_text(select_value)
+	else:
+		return null
+
+func _set_value_from_file(load_value) -> void:
+	selected = -1
+	for item_index in range(item_count):
+		if load_value == get_item_text(item_index):
+			selected = item_index
+	if selected == -1:
+		if add_nonstandard_value:
+			add_item(load_value)
+			selected = item_count - 1
+		else: push_error("Setting value '%s' invalid for setting [%s] \"%s\"" % [load_value, section_name, setting_name])
+
+func _setup_button() -> void:
+	pass
+
+func _ready():
+	Events.Options.load_settings.connect(load_setting)
+	Events.Options.save_settings.connect(save_setting)
+	Events.Options.reset_settings.connect(reset_setting)
+	_setup_button()
+
+func load_setting(file : ConfigFile) -> void:
+	if file == null: return
+	_set_value_from_file(file.get_value(section_name, setting_name, _get_value_for_file(default_selected)))
 	item_selected.emit(selected)
 
-func save_setting(file : ConfigFile):
-	file.set_value(section_name, setting_name, selected)
+func save_setting(file : ConfigFile) -> void:
+	if file == null: return
+	file.set_value(section_name, setting_name, _get_value_for_file(selected))
 
-func reset_setting():
-	selected = default_value
+func reset_setting() -> void:
+	selected = default_selected
 	item_selected.emit(selected)