bugfix: Spells can be used in MMI

code/__DEFINES/traits/declarations.dm

@@ -55,6 +55,7 @@ Remember to update _globalvars/traits.dm if you're adding/removing/renaming trai
 #define TRAIT_FAKEDEATH "fakedeath"	//Makes the owner appear as dead to most forms of medical examination
 #define TRAIT_XENO_HOST "xeno_host"	//Tracks whether we're gonna be a baby alien's mummy.
 #define TRAIT_LEGION_TUMOUR "legion_tumour" //used in huds for special icon
+#define TRAIT_NO_SPELLS "no_spells"	// Used to prevent movement spells from being used as a brain
 /// Are we immune to shocks?
 #define TRAIT_SHOCKIMMUNE "shock_immunity"
 /// Are we immune to specifically tesla / SM shocks?
@@ -177,7 +178,6 @@ Remember to update _globalvars/traits.dm if you're adding/removing/renaming trai
 /// This trait makes it so that an item literally cannot be removed at all, or at least that's how it should be. Only deleted.
 #define TRAIT_NODROP "nodrop"
 
-
 ///Movement type traits for movables. See elements/movetype_handler.dm
 #define TRAIT_MOVE_GROUND "move_ground"
 #define TRAIT_MOVE_FLYING "move_flying"

code/_globalvars/traits.dm

@@ -109,6 +109,7 @@ GLOBAL_LIST_INIT(traits_by_type, list(
 		"TRAIT_NO_SLIP_SLIDE" = TRAIT_NO_SLIP_SLIDE,
 		"TRAIT_NO_SLIP_WATER" = TRAIT_NO_SLIP_WATER,
 		"TRAIT_NO_SPECIES_EXAMINE" = TRAIT_NO_SPECIES_EXAMINE,
+		"TRAIT_NO_SPELLS" = TRAIT_NO_SPELLS,
 		"TRAIT_NO_TRANSFORM" = TRAIT_NO_TRANSFORM,
 		"TRAIT_OBESITY" = TRAIT_OBESITY,
 		"TRAIT_OPEN_MIND" = TRAIT_OPEN_MIND,

code/datums/spell.dm

@@ -593,6 +593,9 @@ GLOBAL_LIST_INIT(spells, typesof(/obj/effect/proc_holder/spell))
 			to_chat(user, span_warning("You shouldn't have this spell! Something's wrong."))
 		return FALSE
 
+	if(HAS_TRAIT(user, TRAIT_NO_SPELLS))
+		return FALSE
+
 	if(!centcom_cancast) //Certain spells are not allowed on the centcom zlevel
 		var/turf/user_turf = get_turf(user)
 		if(user_turf && is_admin_level(user_turf.z))

code/datums/spells/wizard.dm

@@ -382,7 +382,6 @@
 	action.button_icon_state = "fireball[active]"
 	action.UpdateButtonIcon()
 
-
 /obj/effect/proc_holder/spell/fireball/cast(list/targets, mob/living/user = usr)
 	var/target = targets[1] //There is only ever one target for fireball
 	var/turf/T = user.loc

code/modules/mob/living/carbon/brain/MMI.dm

@@ -88,6 +88,7 @@
 		brainmob.set_stat(CONSCIOUS)
 		brainmob.set_invis_see(initial(brainmob.see_invisible))
 		held_brain = brain
+		ADD_TRAIT(brainmob, TRAIT_NO_SPELLS, UNIQUE_TRAIT_SOURCE(src)) // Dont use spells, little brain.
 		alien = istype(brain, /obj/item/organ/internal/brain/xeno)
 		update_appearance(UPDATE_ICON_STATE|UPDATE_NAME)
 		if(radio_action)
@@ -191,6 +192,7 @@
 	brainmob = null//Set mmi brainmob var to null
 	held_brain.forceMove(dropspot)
 	held_brain = null
+	REMOVE_TRAIT(brainmob, TRAIT_NO_SPELLS, UNIQUE_TRAIT_SOURCE(src))
 	update_appearance(UPDATE_ICON_STATE|UPDATE_NAME)