Fixes human internal organs list

code/modules/organs/blood.dm

@@ -63,7 +63,7 @@ var/const/BLOOD_VOLUME_SURVIVE = 122
 
 		// Damaged heart virtually reduces the blood volume, as the blood isn't
 		// being pumped properly anymore.
-		var/datum/organ/internal/heart/heart = internal_organs["heart"]
+		var/datum/organ/internal/heart/heart = internal_organs_by_name["heart"]
 
 		if(heart.damage > 1 && heart.damage < heart.min_bruised_damage)
 			blood_volume *= 0.8

code/modules/organs/organ_external.dm

@@ -98,7 +98,7 @@
 				return
 
 	// High brute damage or sharp objects may damage internal organs
-	if(internal_organs != null) if( (sharp && brute >= 5) || brute >= 10) if(prob(5))
+	if(internal_organs && ( (sharp && brute >= 5) || brute >= 10) && prob(5))
 		// Damage an internal organ
 		var/datum/organ/internal/I = pick(internal_organs)
 		I.take_damage(brute / 2)

code/modules/organs/organ_internal.dm

@@ -27,8 +27,8 @@
 	var/datum/organ/external/E = H.organs_by_name[src.parent_organ]
 	if(E.internal_organs == null)
 		E.internal_organs = list()
-	E.internal_organs += src
-	H.internal_organs[src.name] = src
+	E.internal_organs |= src
+	H.internal_organs |= src
 	src.owner = H
 
 /datum/organ/internal/process()

code/modules/organs/pain.dm

@@ -102,8 +102,7 @@ mob/living/carbon/human/proc/handle_pain()
 		pain(damaged_organ.display_name, maxdam, 0)
 
 	// Damage to internal organs hurts a lot.
-	for(var/organ_name in internal_organs)
-		var/datum/organ/internal/I = internal_organs[organ_name]
+	for(var/datum/organ/internal/I in internal_organs)
 		if(I.damage > 2) if(prob(2))
 			var/datum/organ/external/parent = get_organ(I.parent_organ)
 			src.custom_pain("You feel a sharp pain in your [parent.display_name]", 1)