People can now walk on one leg. (#35065)

* legs are now OK

* Losing a leg will knock you down

* Bolas will no longer affect legless people, halved chance of hitting if the target is one-legged

code/defines/obj/weapon.dm

@@ -194,6 +194,16 @@
 		var/mob/living/M = hit_atom
 		if(ishuman(M)) //if they're a human species
 			var/mob/living/carbon/human/H = M
+			if(!H.check_stand_ability()) //Target has no legs, how is this going to trip them up?
+				throw_failed()
+				return
+			var/leg_count //If one-legged, will halve the chance of getting caught by bolas
+			for(var/datum/organ/external/leg in H.get_organs(LIMB_LEFT_LEG, LIMB_RIGHT_LEG))
+				leg_count++
+			if(!prob(50*leg_count))
+				H.visible_message("<span class='borange'>The bolas miss [H]!</span>", "<span class='borange'>The bolas miss you!</span>")
+				throw_failed()
+				return
 			if(H.m_intent == "run") //if they're set to run (though not necessarily running at that moment)
 				if(prob(trip_prob)) //this probability is up for change and mostly a placeholder - Comic
 					step(H, H.dir)

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

@@ -47,13 +47,16 @@
 				E = organ_name
 			else
 				E = get_organ(organ_name)
+			var/is_holding_cane = find_held_item_by_type(/obj/item/weapon/cane)
 			if(!E || (E.status & ORGAN_DESTROYED) || (E.status & ORGAN_PEG))
 				. += 2*multiplier
+				if(is_holding_cane)
+					. -= 1*multiplier //Halve the movement speed penalty
 			if(E.status & ORGAN_SPLINTED)
-				if(!find_held_item_by_type(/obj/item/weapon/cane))
+				if(!is_holding_cane)
 					. += 0.5*multiplier
 			else if(E.status & ORGAN_BROKEN)
-				if(!find_held_item_by_type(/obj/item/weapon/cane))
+				if(!is_holding_cane)
 					. += 1*multiplier
 				. += 0.5*multiplier
 

code/modules/organs/organ.dm

@@ -196,12 +196,12 @@
 	has_limbs = check_crawl_ability()
 
 /mob/living/carbon/human/proc/check_stand_ability()
-	//All legs must be usable in order for a human to stand
+	//At least one leg must be usable in order for a human to stand
 	for(var/datum/organ/external/leg in get_organs(LIMB_LEFT_LEG, LIMB_RIGHT_LEG))
-		if(!leg.can_stand())
-			return FALSE
+		if(leg.can_stand())
+			return TRUE
 
-	return TRUE
+	return FALSE
 
 /mob/living/carbon/human/proc/check_crawl_ability()
 	//At least one limb has to be usable for a human to crawl

code/modules/organs/organ_external.dm

@@ -798,6 +798,10 @@ Note that amputating the affected organ does in fact remove the infection from t
 		if(body_part & (HAND_LEFT | HAND_RIGHT | ARM_LEFT | ARM_RIGHT))
 			owner.update_hands_icons()
 
+		if(body_part & (LEG_LEFT | LEG_RIGHT))
+			to_chat(owner, "<span class='danger'>The shock of losing your leg knocks you down!</span>")
+			owner.AdjustKnockdown(5)
+
 		if(slots_to_drop && slots_to_drop.len)
 			for(var/slot_id in slots_to_drop)
 				owner.u_equip(owner.get_item_by_slot(slot_id), 1)