Beginnings of a global volume control system

code/modules/client/preference_setup/volume_sliders/01_volume.dm

@@ -0,0 +1,107 @@
+/datum/category_group/player_setup_category/volume_sliders
+	name = "Sound"
+	sort_order = 7
+	category_item_type = /datum/category_item/player_setup_item/volume_sliders
+
+/datum/category_item/player_setup_item/volume_sliders/volume
+	name = "General Volume"
+	sort_order = 1
+
+/datum/category_item/player_setup_item/volume_sliders/volume/load_preferences(var/savefile/S)
+	S["volume_channels"] >> pref.volume_channels
+
+/datum/category_item/player_setup_item/volume_sliders/volume/save_preferences(var/savefile/S)
+	S["volume_channels"] << pref.volume_channels
+
+/datum/category_item/player_setup_item/volume_sliders/volume/sanitize_preferences()
+	if(isnull(pref.volume_channels))
+		pref.volume_channels = list()
+
+	for(var/channel in pref.volume_channels)
+		if(!(channel in GLOB.all_volume_channels))
+			// Channel no longer exists, yeet
+			pref.volume_channels.Remove(channel)
+
+	for(var/channel in GLOB.all_volume_channels)
+		if(!(channel in pref.volume_channels))
+			pref.volume_channels["[channel]"] = 1
+		else
+			pref.volume_channels["[channel]"] = clamp(pref.volume_channels["[channel]"], 0, 2)
+
+/datum/category_item/player_setup_item/volume_sliders/volume/content(var/mob/user)
+	. += "<b>Volume Settings</b><br>"
+	for(var/channel in pref.volume_channels)
+		. += "[channel]: <a href='?src=\ref[src];change_volume=[channel];'><b>[pref.volume_channels[channel] * 100]%</b></a><br>"
+	. += "<br>"
+
+/datum/category_item/player_setup_item/volume_sliders/volume/OnTopic(var/href, var/list/href_list, var/mob/user)
+	if(href_list["change_volume"])
+		if(CanUseTopic(user))
+			var/channel = href_list["change_volume"]
+			if(!(channel in pref.volume_channels))
+				pref.volume_channels["[channel]"] = 1
+			var/value = input("Choose your volume for [channel] (0-200%)", "[channel] volume", (pref.volume_channels[channel] * 100))
+			if(isnum(value))
+				value = CLAMP(value, 0, 200)
+				pref.volume_channels["[channel]"] = (value / 100)
+			return TOPIC_REFRESH
+	return ..()
+
+/mob/proc/get_preference_volume_channel(volume_channel)
+	if(!client)
+		return 0
+	return client.get_preference_volume_channel(volume_channel)
+
+/client/proc/get_preference_volume_channel(volume_channel)
+	if(!volume_channel || !prefs)
+		return 1
+	if(!(volume_channel in prefs.volume_channels))
+		prefs.volume_channels["[volume_channel]"] = 1
+	return prefs.volume_channels["[volume_channel]"]
+
+
+// Neat little volume adjuster thing in case you don't wanna touch preferences by hand you lazy fuck
+// Currently unimplemented due to lack of TGUI v4
+// /datum/volume_panel
+// /datum/volume_panel/tgui_state(mob/user)
+// 	return GLOB.tgui_always_state
+
+// /datum/volume_panel/tgui_interact(mob/user, datum/tgui/ui, datum/tgui/parent_ui)
+// 	ui = SStgui.try_update_ui(user, src, ui)
+// 	if(!ui)
+// 		ui = new(user, src, "VolumePanel", "Volume Panel")
+// 		ui.open()
+
+// /datum/volume_panel/tgui_data(mob/user)
+// 	if(!user.client || !user.client.prefs)
+// 		return list("error" = TRUE)
+	
+// 	var/list/data = ..()
+// 	data["volume_channels"] = user.client.prefs.volume_channels
+// 	return data
+
+// /datum/volume_panel/tgui_act(action, params)
+// 	if(..())
+// 		return TRUE
+
+// 	if(!usr?.client?.prefs)
+// 		return TRUE
+
+// 	var/datum/preferences/P = usr.client.prefs
+// 	switch(action)
+// 		if("adjust_volume")
+// 			var/channel = params["channel"]
+// 			if(channel in P.volume_channels)
+// 				P.volume_channels["[channel]"] = clamp(params["vol"], 0, 2)
+// 				SScharacter_setup.queue_preferences_save(P)
+// 				return TRUE
+
+// /client/verb/volume_panel()
+// 	set name = "Volume Panel"
+// 	set category = "Preferences"
+// 	set desc = "Allows you to adjust volume levels on the fly."
+
+// 	if(!volume_panel)
+// 		volume_panel = new(src)
+
+// 	volume_panel.tgui_interact(mob)