Can attach limbs now. No preparations needed yet.

code/WorkInProgress/surgery.dm

@@ -834,4 +834,52 @@ proc/build_surgery_steps_list()
 //						LIMB SURGERY							//
 //////////////////////////////////////////////////////////////////
 
-//uh, sometime later, okay?
+/datum/surgery_step/limb/
+	can_use(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		if (!hasorgans(target))
+			return 0
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		if (!affected)
+			return 0
+		if (!(affected.status & ORGAN_DESTROYED))
+			return 0
+		if (affected.parent)
+			if (affected.parent.status & ORGAN_DESTROYED)
+				return 0
+		return 1
+
+/datum/surgery_step/limb/attach
+	required_tool = /obj/item/robot_parts
+
+	min_duration = 80
+	max_duration = 100
+
+	can_use(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/obj/item/robot_parts/p = tool
+		if (p.part)
+			if (!(target_zone in p.part))
+				return 0
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		return ..()// && affected.status & ORGAN_ATTACHABLE
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		user.visible_message("[user] starts attaching [tool] where [target]'s [affected.display_name] used to be.", \
+		"You start attaching [tool] where [target]'s [affected.display_name] used to be.")
+
+	end_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		user.visible_message("\blue [user] has attached [tool] where [target]'s [affected.display_name] used to be.",	\
+		"\blue You have attached [tool] where [target]'s [affected.display_name] used to be.")
+		affected.robotize()
+		target.update_body()
+		target.updatehealth()
+		target.UpdateDamageIcon()
+		del(tool)
+
+	fail_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		user.visible_message("\red [user]'s hand slips, damaging connectors on [target]'s [affected.display_name]!", \
+		"\red Your hand slips, damaging connectors on [target]'s [affected.display_name]!")
+		target.apply_damage(10, BRUTE, affected)
+

code/datums/organs/organ_external.dm

@@ -378,8 +378,8 @@
 				if(!no_explode)
 					explosion(get_turf(owner),-1,-1,2,3)
 					var/datum/effect/effect/system/spark_spread/spark_system = new /datum/effect/effect/system/spark_spread()
-					spark_system.set_up(5, 0, src)
-					spark_system.attach(src)
+					spark_system.set_up(5, 0, owner)
+					spark_system.attach(owner)
 					spark_system.start()
 					spawn(10)
 						del(spark_system)
@@ -477,6 +477,17 @@
 			else
 				return name
 
+	proc/robotize()
+		src.status &= ~ORGAN_BROKEN
+		src.status &= ~ORGAN_BLEEDING
+		src.status &= ~ORGAN_SPLINTED
+		src.status &= ~ORGAN_ATTACHABLE
+		src.status &= ~ORGAN_DESTROYED
+		src.status |= ORGAN_ROBOT
+		for (var/datum/organ/external/T in children)
+			if(T)
+				T.robotize()
+
 /datum/organ/external/chest
 	name = "chest"
 	icon_name = "chest"

code/game/objects/items.dm

@@ -188,7 +188,7 @@
 		return
 	if (can_operate(M))	//Checks if mob is lying down on table for surgery
 		if(istype(M,/mob/living/carbon))
-			if (user.a_intent == "help" || (user.a_intent != "harm" && is_surgery_tool(src)))
+			if (user.a_intent != "harm")
 				if(surgery_steps == null) build_surgery_steps_list()
 				for(var/datum/surgery_step/S in surgery_steps)
 					//check if tool is right or close enough

code/game/objects/items/robot/robot_parts.dm

@@ -7,6 +7,7 @@
 	slot_flags = SLOT_BELT
 	var/construction_time = 100
 	var/list/construction_cost = list("metal"=20000,"glass"=5000)
+	var/list/part = null
 
 /obj/item/robot_parts/l_arm
 	name = "Cyborg Left Arm"
@@ -14,6 +15,7 @@
 	icon_state = "l_arm"
 	construction_time = 200
 	construction_cost = list("metal"=18000)
+	part = list("l_arm","l_hand")
 
 /obj/item/robot_parts/r_arm
 	name = "Cyborg Right Arm"
@@ -21,6 +23,7 @@
 	icon_state = "r_arm"
 	construction_time = 200
 	construction_cost = list("metal"=18000)
+	part = list("r_arm","r_hand")
 
 /obj/item/robot_parts/l_leg
 	name = "Cyborg Left Leg"
@@ -28,6 +31,7 @@
 	icon_state = "l_leg"
 	construction_time = 200
 	construction_cost = list("metal"=15000)
+	part = list("l_leg","l_foot")
 
 /obj/item/robot_parts/r_leg
 	name = "Cyborg Right Leg"
@@ -35,6 +39,7 @@
 	icon_state = "r_leg"
 	construction_time = 200
 	construction_cost = list("metal"=15000)
+	part = list("r_leg","r_foot")
 
 /obj/item/robot_parts/chest
 	name = "Cyborg Torso"