Merge pull request #12390 from Ghommie/Ghommie-cit800

Porting brain trauma updates: Curse of madness, cloning traumas, random brain trauma event.

code/modules/antagonists/wizard/equipment/spellbook.dm

@@ -560,6 +560,27 @@
 		. += "You cast it [times] times.<br>"
 	return .
 
+/datum/spellbook_entry/summon/curse_of_madness
+	name = "Curse of Madness"
+	desc = "Curses the station, warping the minds of everyone inside, causing lasting traumas. Warning: this spell can affect you if not cast from a safe distance."
+	cost = 4
+
+/datum/spellbook_entry/summon/curse_of_madness/Buy(mob/living/carbon/human/user, obj/item/spellbook/book)
+	SSblackbox.record_feedback("tally", "wizard_spell_learned", 1, name)
+	active = TRUE
+	var/message = stripped_input(user, "Whisper a secret truth to drive your victims to madness.", "Whispers of Madness")
+	if(!message)
+		return FALSE
+	curse_of_madness(user, message)
+	to_chat(user, "<span class='notice'>You have cast the curse of insanity!</span>")
+	playsound(user, 'sound/magic/mandswap.ogg', 50, 1)
+	return TRUE
+
+/datum/spellbook_entry/summon/curse_of_madness/IsAvailible()
+	if(!SSticker.mode) // In case spellbook is placed on map
+		return FALSE
+	return (!CONFIG_GET(flag/no_summon_traumas) && ..())
+
 /obj/item/spellbook
 	name = "spell book"
 	desc = "An unearthly tome that glows with power."