Converts antimagic from GetComponent to a signal

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)