Action Button Update

- Refactors action button backend
   - Action buttons are no longer checked on Life(), items are responsible
     for adding/removing/updating them.
   - Item action buttons are no longer a static action_button_name define,
     items define actions_types, which is a list of paths.
   - Items can now have multiple action buttons.
     - This is handled by new arguments to ui_action_click, the first
       parameter is the user, the second is the path of the action datum
       that was invoked.
 - Refactored how internals function
   - You may now directly switch internals without breaking anything.
   - The internals icon has been updated to be more consistent.
 - Added action buttons for jetpacks
 - Added action buttons for oxygen tanks
 - Uses-based implants now qdel() themselves when they run out of uses.
   This is somewhat a buff to traitor implants, but it's such a minor
   change. The actual reasoning is so that the action buttons are properly
   removed.
 - Fixed a bug with the "Boo" spell which resulted in IsAvailable failing
   for certain ghosts.
 - You can now shift-click on movable HUD elements to reset them to the
   proper position (thank fucking christ)

code/game/objects/items/weapons/implants/implant.dm

@@ -2,9 +2,9 @@
 	name = "implant"
 	icon = 'icons/obj/implants.dmi'
 	icon_state = "generic" //Shows up as the action button icon
-	action_button_custom_type = /datum/action/item_action/hands_free
 	origin_tech = "materials=2;biotech=3;programming=2"
 
+	actions_types = list(/datum/action/item_action/hands_free/activate)
 	var/activated = 1 //1 for implant types that can be activated, 0 for ones that are "always on" like mindshield implants
 	var/implanted = null
 	var/mob/living/imp_in = null
@@ -41,11 +41,13 @@
 			return 0
 
 
-	if(activated)
-		action_button_name = "Activate [src.name]"
 	src.loc = source
 	imp_in = source
 	implanted = 1
+	if(activated)
+		for(var/X in actions)
+			var/datum/action/A = X
+			A.Grant(source)
 	if(istype(source, /mob/living/carbon/human))
 		var/mob/living/carbon/human/H = source
 		H.sec_hud_set_implants()
@@ -60,6 +62,10 @@
 	imp_in = null
 	implanted = 0
 
+	for(var/X in actions)
+		var/datum/action/A = X
+		A.Grant(source)
+
 	if(istype(source, /mob/living/carbon/human))
 		var/mob/living/carbon/human/H = source
 		H.sec_hud_set_implants()
@@ -76,6 +82,6 @@
 	return "No information available"
 
 /obj/item/weapon/implant/dropped(mob/user)
+	..()
 	. = 1
 	qdel(src)
-	return .

code/game/objects/items/weapons/implants/implant_freedom.dm

@@ -8,12 +8,13 @@
 
 
 /obj/item/weapon/implant/freedom/activate()
-	if(uses == 0)	return 0
-	if(uses != -1)	uses--
+	uses--
 	to_chat(imp_in, "You feel a faint click.")
 	if(iscarbon(imp_in))
 		var/mob/living/carbon/C_imp_in = imp_in
 		C_imp_in.uncuff()
+	if(!uses)
+		qdel(src)
 
 
 /obj/item/weapon/implant/freedom/get_data()

code/game/objects/items/weapons/implants/implant_misc.dm

@@ -33,7 +33,6 @@
 	return dat
 
 /obj/item/weapon/implant/adrenalin/activate()
-	if(uses < 1)	return 0
 	uses--
 	to_chat(imp_in, "<span class='notice'>You feel a sudden surge of energy!</span>")
 	imp_in.SetStunned(0)
@@ -46,6 +45,8 @@
 	imp_in.reagents.add_reagent("synaptizine", 10)
 	imp_in.reagents.add_reagent("omnizine", 10)
 	imp_in.reagents.add_reagent("stimulative_agent", 10)
+	if(!uses)
+		qdel(src)
 
 
 /obj/item/weapon/implant/emp
@@ -56,9 +57,10 @@
 	uses = 2
 
 /obj/item/weapon/implant/emp/activate()
-	if(src.uses < 1)	return 0
-	src.uses--
+	uses--
 	empulse(imp_in, 3, 5)
+	if(!uses)
+		qdel(src)
 
 /obj/item/weapon/implant/cortical
 	name = "cortical stack"