Converts antimagic from GetComponent to a signal

code/modules/mob/living/living.dm

@@ -911,6 +911,13 @@
 
 	apply_effect((amount*RAD_MOB_COEFFICIENT)/max(1, (radiation**2)*RAD_OVERDOSE_REDUCTION), EFFECT_IRRADIATE, blocked)
 
+/mob/living/anti_magic_check(magic = TRUE, holy = FALSE)
+	. = ..()
+	if(.)
+		return
+	if((magic && has_trait(TRAIT_ANTIMAGIC)) || (holy && has_trait(TRAIT_HOLY)))
+		return src
+
 /mob/living/proc/fakefireextinguish()
 	return
 

code/modules/mob/mob.dm

@@ -689,6 +689,16 @@
 			mob_spell_list -= S
 			qdel(S)
 
+/mob/proc/anti_magic_check(magic = TRUE, holy = FALSE)
+	if(!magic && !holy)
+		return
+	var/list/protection_sources = list()
+	if(SEND_SIGNAL(src, COMSIG_MOB_RECEIVE_MAGIC, magic, holy, protection_sources) & COMPONENT_BLOCK_MAGIC)
+		if(protection_sources.len)
+			return pick(protection_sources)
+		else
+			return src
+
 //You can buckle on mobs if you're next to them since most are dense
 /mob/buckle_mob(mob/living/M, force = FALSE, check_loc = TRUE)
 	if(M.buckled)