adds some helper procs

code/modules/surgery/organs/helpers.dm

@@ -44,3 +44,79 @@
 	for(var/obj/item/organ/external/O in bodyparts)
 		if(limb_name == O.limb_name)
 			return O
+
+
+/mob/proc/has_left_hand()
+	return TRUE
+
+/mob/living/carbon/human/has_left_hand()
+	if(has_organ("l_hand"))
+		return TRUE
+	return FALSE
+
+
+/mob/proc/has_right_hand()
+	return TRUE
+
+/mob/living/carbon/human/has_right_hand()
+	if(has_organ("r_hand"))
+		return TRUE
+	return FALSE
+
+
+//Limb numbers
+/mob/proc/get_num_arms()
+	return 2
+
+/mob/living/carbon/human/get_num_arms()
+	. = 0
+	for(var/X in bodyparts)
+		var/obj/item/organ/external/affecting = X
+		if(affecting.body_part == ARM_RIGHT)
+			.++
+		if(affecting.body_part == ARM_LEFT)
+			.++
+
+//sometimes we want to ignore that we don't have the required amount of arms.
+/mob/proc/get_arm_ignore()
+	return 0
+
+
+/mob/proc/get_num_legs()
+	return 2
+
+/mob/living/carbon/human/get_num_legs()
+	. = 0
+	for(var/X in bodyparts)
+		var/obj/item/organ/external/affecting = X
+		if(affecting.body_part == LEG_RIGHT)
+			.++
+		if(affecting.body_part == LEG_LEFT)
+			.++
+
+//sometimes we want to ignore that we don't have the required amount of legs.
+/mob/proc/get_leg_ignore()
+	return FALSE
+
+
+/mob/living/carbon/human/get_leg_ignore()
+
+	if(flying == 1)
+		return TRUE
+
+	var/obj/item/weapon/tank/jetpack/J
+	if(istype(back,/obj/item/weapon/tank/jetpack))
+		J = back
+		if(J.on == 1)
+			return TRUE
+	return FALSE
+
+/mob/living/proc/get_missing_limbs()
+	return list()
+
+/mob/living/carbon/human/get_missing_limbs()
+	var/list/full = list("head", "chest", "r_arm", "l_arm", "r_leg", "l_leg")
+	for(var/zone in full)
+		if(has_organ(zone))
+			full -= zone
+	return full