Replaces some of the hardcoded HUD icons defined at mob level with a pair of mob procs throw_alert() and clear_alert(). Alerts will appear on the top-right side of the screen.
You can shift-click alerts to get a description of what's wrong and sometimes a tip on how to solve the alert.
Alerts can be given a master, which overlays the master on top of a box and forwards clicks of the alert to that master. Getting buckled will put an alert of what you're buckled to, for example. If it's a chair, you just click the alert and you're unbuckled. The idea I'm shooting for is to replace resist entirely with this kind of stuff.
Making a new alert and using it is a little complicated. This explanation will suck, but this is simpler than I'm making it sound, I promise. Throw_alert() has 4 args, category, id, severity, and obj/new_master. If you don't supply an id, category will be used as id. Only 1 alert per category is allowed; any duplicate will be replaced. Additionally clear_alert() clears alerts by category. Id MUST match a type path of /obj/screen/alert/[id]. That type path is where the alert's name and desc come from. The icon_state of the alert will either be "template" if new_master is set or [id][severity] otherwise. new_master is totally optional.
Examples:
throw_alert("oxy") -- takes name/desc of obj/screen/alert/oxy, icon_state = "oxy" -- clear_alert("oxy")
throw_alert("nutrition","fat") -- takes name/desc of obj/screen/alert/fat, icon_state = "fat" -- clear_alert("nutrition")
throw_alert("nutrition","starving") -- takes name/desc of obj/screen/alert/starving, icon_state = "starving" -- clear_alert("nutrition")
throw_alert("temp","cold",1) -- takes name/desc of obj/screen/alert/cold, icon_state = "cold1" -- clear_alert("temp")
throw_alert("temp","cold",3) -- takes name/desc of obj/screen/alert/cold, icon_state = "cold3" -- clear_alert("temp")
If you pass a new_master, id is only used to get name/desc and still must match a path, but the icon_state is "template" and icon is from the mob's ui preference instead of icons/mob/screen_alert.dmi.
Several unused icons removed, like borg oxygen and temperature alerts. Also some icons were used but now are not and were removed, like the nutrition icon for being well-fed and cyborg charge icon for being fully charged.
Thanks @Ricotez
Also tweaks the wording of related verbs, procs, and variables to match
Moves the scope of the ghostimages (now ghost darkness images) var and updatedateallghostimages proc to the global space so other things can access them
Fixes an unreported bug where all the lizardpeople were horrifying on the character preview because it wasn't rendering their tains and noses. Incidentally the proc for character previews is horrifying.
Only relevent appearence settings will appear on the appearence screen for each race.
Moves the skin tones selector to the relevent appearence settings area for humans.
Abuses client.images to get around the issue with flat see_invisible scaling not allowing for both being able to see ghosts while not seeing darkness layers.
