Fixes IPCs getting fleshy stumps, makes robot limbs become unusable above max_damage

code/modules/mob/living/carbon/human/human_organs.dm

@@ -70,9 +70,9 @@
 
 	for(var/limb_tag in list("l_leg","r_leg","l_foot","r_foot"))
 		var/obj/item/organ/external/E = organs_by_name[limb_tag]
-		if(!E || (E.status & (ORGAN_DESTROYED|ORGAN_DEAD)))
-			stance_damage += 2 // let it fail even if just foot&leg
-		else if (E.is_malfunctioning() || E.is_broken() || !E.is_usable())
+		if(!E || (E.status & (ORGAN_DESTROYED|ORGAN_DEAD)) || E.is_malfunctioning())
+			stance_damage += 2 // let it fail even if just foot&leg. Also malfunctioning happens sporadically so it should impact more when it procs
+		else if (E.is_broken() || !E.is_usable())
 			stance_damage += 1
 		else if (E.is_dislocated())
 			stance_damage += 0.5

code/modules/organs/organ_external.dm

@@ -388,10 +388,6 @@ This function completely restores a damaged organ to perfect condition.
 				if(trace_chemicals[chemID] <= 0)
 					trace_chemicals.Remove(chemID)
 
-		//Bone fractures
-		if(config.bones_can_break && brute_dam > min_broken_damage * config.organ_health_multiplier && !(status & ORGAN_ROBOT))
-			src.fracture()
-
 		if(!(status & ORGAN_BROKEN))
 			perma_injury = 0
 
@@ -562,6 +558,7 @@ Note that amputating the affected organ does in fact remove the infection from t
 	if(istype(owner,/mob/living/carbon/human))
 		H = owner
 
+	//update damage counts
 	for(var/datum/wound/W in wounds)
 		if(!W.internal) //so IB doesn't count towards crit/paincrit
 			if(W.damage_type == CUT || W.damage_type == BRUISE)
@@ -577,9 +574,13 @@ Note that amputating the affected organ does in fact remove the infection from t
 
 		number_wounds += W.amount
 
-	if (open && !clamped && (H && !(H.species.flags & NO_BLOOD)))	//things tend to bleed if they are CUT OPEN
+	//things tend to bleed if they are CUT OPEN
+	if (open && !clamped && (H && !(H.species.flags & NO_BLOOD)))
 		status |= ORGAN_BLEEDING
-
+		
+	//Bone fractures
+	if(config.bones_can_break && brute_dam > min_broken_damage * config.organ_health_multiplier && !(status & ORGAN_ROBOT))
+		src.fracture()
 
 // new damage icon system
 // adjusted to set damage_state to brute/burn code only (without r_name0 as before)
@@ -850,6 +851,8 @@ Note that amputating the affected organ does in fact remove the infection from t
 	return 0
 
 /obj/item/organ/external/proc/is_usable()
+	if((status & ORGAN_ROBOT) && get_damage() >= max_damage) //robot limbs just become inoperable at max damage
+		return 
 	return !is_dislocated() && !(status & (ORGAN_DESTROYED|ORGAN_MUTATED|ORGAN_DEAD))
 
 /obj/item/organ/external/proc/is_malfunctioning()

code/modules/organs/organ_stump.dm

@@ -14,6 +14,8 @@
 	..(holder, internal)
 	if(istype(limb))
 		max_damage = limb.max_damage
+		if((limb.status & ORGAN_ROBOT) && (!parent || (parent.status & ORGAN_ROBOT))) 
+			status |= ORGAN_ROBOT //if both limb and the parent are robotic, the stump is robotic too
 
 /obj/item/organ/external/stump/is_stump()
 	return 1