Vampires can gain blood for a minute from people who succumb

code/__HELPERS/trait_helpers.dm

@@ -223,6 +223,7 @@ Remember to update _globalvars/traits.dm if you're adding/removing/renaming trai
 #define TRAIT_CAN_VIEW_HEALTH "can_view_health" // Also used for /Stat
 #define TRAIT_MAGPULSE "magnetificent" // Used for anything that is magboot related
 #define TRAIT_NOSLIP "noslip"
+#define TRAIT_RECENTLY_SUCCUMBED "recently_succumbed"
 
 //***** MIND TRAITS *****/
 #define TRAIT_HOLY "is_holy" // The mob is holy in regards to religion

code/_globalvars/traits.dm

@@ -87,7 +87,8 @@ GLOBAL_LIST_INIT(traits_by_type, list(
 		"TRAIT_BADASS" = TRAIT_BADASS,
 		"TRAIT_FORCED_STANDING" = TRAIT_FORCED_STANDING,
 		"TRAIT_NOSLIP" = TRAIT_NOSLIP,
-		"TRAIT_MAGPULSE" = TRAIT_MAGPULSE
+		"TRAIT_MAGPULSE" = TRAIT_MAGPULSE,
+		"TRAIT_RECENTLY_SUCCUMBED " = TRAIT_RECENTLY_SUCCUMBED
 	),
 
 	/datum/mind = list(

code/modules/antagonists/vampire/vamp_datum.dm

@@ -135,7 +135,7 @@
 				continue
 
 
-		if(H.stat < DEAD)
+		if(H.stat < DEAD || HAS_TRAIT(H, TRAIT_RECENTLY_SUCCUMBED))
 			if(H.ckey || H.player_ghosted) //Requires ckey regardless if monkey or humanoid, or the body has been ghosted before it died
 				blood = min(20, H.blood_volume)
 				adjust_blood(H, blood * BLOOD_GAINED_MODIFIER)

code/modules/mob/living/living.dm

@@ -320,7 +320,11 @@
 	else
 		death()
 	to_chat(src, "<span class='notice'>You have given up life and succumbed to death.</span>")
+	ADD_TRAIT(src, TRAIT_RECENTLY_SUCCUMBED, "succumb")
+	addtimer(CALLBACK(src, PROC_REF(remove_succumbed)), 1 MINUTES)
 
+/mob/living/proc/remove_succumbed()
+	REMOVE_TRAIT(src, TRAIT_RECENTLY_SUCCUMBED, "succumb")
 
 /mob/living/proc/InCritical()
 	return (health < HEALTH_THRESHOLD_CRIT && health > HEALTH_THRESHOLD_DEAD && stat == UNCONSCIOUS)