Merge pull request #2194 from comma/master

Surgeray

baystation12.dme

@@ -1154,10 +1154,19 @@
 #include "code\modules\scripting\Scanner\Tokens.dm"
 #include "code\modules\security levels\keycard authentication.dm"
 #include "code\modules\security levels\security levels.dm"
+#include "code\modules\surgery\appendix.dm"
+#include "code\modules\surgery\bones.dm"
+#include "code\modules\surgery\braincore.dm"
+#include "code\modules\surgery\eye.dm"
+#include "code\modules\surgery\face.dm"
+#include "code\modules\surgery\generic.dm"
+#include "code\modules\surgery\other.dm"
+#include "code\modules\surgery\ribcage.dm"
+#include "code\modules\surgery\robolimbs.dm"
+#include "code\modules\surgery\surgery.dm"
 #include "code\WorkInProgress\autopsy.dm"
 #include "code\WorkInProgress\buildmode.dm"
 #include "code\WorkInProgress\explosion_particles.dm"
-#include "code\WorkInProgress\surgery.dm"
 #include "code\WorkInProgress\Cael_Aislinn\energy_field.dm"
 #include "code\WorkInProgress\Cael_Aislinn\external_shield_gen.dm"
 #include "code\WorkInProgress\Cael_Aislinn\meteor_battery.dm"

code/WorkInProgress/autopsy.dm

@@ -2,10 +2,18 @@
 //moved these here from code/defines/obj/weapon.dm
 //please preference put stuff where it's easy to find - C
 
-/obj/item/weapon/autopsy_scanner/var/list/datum/autopsy_data_scanner/wdata = list()
+/obj/item/weapon/autopsy_scanner
-/obj/item/weapon/autopsy_scanner/var/list/datum/autopsy_data_scanner/chemtraces = list()
+	name = "autopsy scanner"
-/obj/item/weapon/autopsy_scanner/var/target_name = null
+	desc = "Extracts information on wounds."
-/obj/item/weapon/autopsy_scanner/var/timeofdeath = null
+	icon = 'icons/obj/autopsy_scanner.dmi'
+	icon_state = ""
+	flags = FPRINT | TABLEPASS | CONDUCT
+	w_class = 1.0
+	origin_tech = "materials=1;biotech=1"
+	var/list/datum/autopsy_data_scanner/wdata = list()
+	var/list/datum/autopsy_data_scanner/chemtraces = list()
+	var/target_name = null
+	var/timeofdeath = null
 
 /datum/autopsy_data_scanner
 	var/weapon = null // this is the DEFINITE weapon type that was used

code/ZAS/Airflow.dm

@@ -148,7 +148,7 @@ proc/Airflow(zone/A, zone/B)
 
 		//Check for knocking people over
 		if(ismob(M) && n > vsc.airflow_stun_pressure)
-			if(M:nodamage) continue
+			if(M:status_flags & GODMODE) continue
 			M:airflow_stun()
 
 		if(M.check_airflow_movable(n))
@@ -242,7 +242,7 @@ atom/movable
 		if(airflow_dest == loc)
 			step_away(src,loc)
 		if(ismob(src))
-			if(src:nodamage)
+			if(src:status_flags & GODMODE)
 				return
 			if(istype(src, /mob/living/carbon/human))
 				if(src:buckled)
@@ -307,7 +307,7 @@ atom/movable
 		if(airflow_dest == loc)
 			step_away(src,loc)
 		if(ismob(src))
-			if(src:nodamage)
+			if(src:status_flags & GODMODE)
 				return
 			if(istype(src, /mob/living/carbon/human))
 				if(src:buckled)

code/datums/organs/organ_external.dm

@@ -224,6 +224,7 @@
 
 	proc/clamp()
 		var/rval = 0
+		src.status &= ~ORGAN_BLEEDING
 		for(var/datum/wound/W in wounds)
 			if(W.internal) continue
 			rval |= !W.clamped
@@ -610,6 +611,7 @@
 
 	take_damage(brute, burn, sharp, used_weapon = null, list/forbidden_limbs = list())
 		..(brute, burn, sharp, used_weapon, forbidden_limbs)
+		if (!disfigured)
 			if (brute_dam > 40)
 				if (prob(50))
 					disfigure("brute")

code/game/machinery/doors/firedoor.dm

@@ -123,7 +123,7 @@
 			else
 				spawn(0)
 					close()
-
+			return
 		var/access_granted = 0
 		var/users_name
 		if(!istype(C, /obj)) //If someone hit it with their hand.  We need to see if they are allowed.

code/game/objects/items.dm

@@ -210,19 +210,8 @@
 		return
 
 	if (can_operate(M))	//Checks if mob is lying down on table for surgery
-		if(istype(M,/mob/living/carbon))
+		if (do_surgery(M,user,src))
-			if (user.a_intent != "harm")	//check for Hippocratic Oath
+			return
-				if(surgery_steps.len == 0) build_surgery_steps_list()
-				for(var/datum/surgery_step/S in surgery_steps)
-					if( S.isright(src) || S.isacceptable(src) )	 						//check if tool is right or close enough
-						if(S.can_use(user, M, user.zone_sel.selecting, src))			//and if this step is possible
-							S.begin_step(user, M, user.zone_sel.selecting, src)			//start on it
-							if(do_mob(user, M, rand(S.min_duration, S.max_duration)))	//if user did nto move or changed hands
-								S.end_step(user, M, user.zone_sel.selecting, src)		//finish successfully
-							else														//or
-								S.fail_step(user, M, user.zone_sel.selecting, src)		//malpractice~
-							return		  												//don't want to do weapony things after surgery
-
 
 	var/messagesource = M
 

code/modules/mob/living/carbon/carbon_defines.dm

@@ -2,12 +2,6 @@
 	gender = MALE
 	var/list/stomach_contents = list()
 	var/brain_op_stage = 0.0
-	var/ribcage_op_stage = 0
-	var/alien_op_stage = 0.0
-/*
-	var/eye_op_stage = 0.0
-	var/appendix_op_stage = 0.0
-*/
 	var/datum/disease2/disease/virus2 = null
 	var/list/datum/disease2/disease/resistances2 = list()
 	var/antibodies = 0
@@ -22,3 +16,5 @@
 	var/number_wounds = 0
 	var/obj/item/handcuffed = null //Whether or not the mob is handcuffed
 	var/obj/item/legcuffed = null  //Same as handcuffs but for legs. Bear traps use this.
+	//Surgery info
+	var/datum/surgery_status/op_stage = new/datum/surgery_status

code/modules/surgery/appendix.dm

@@ -0,0 +1,80 @@
+//Procedures in this file: Appendectomy
+//////////////////////////////////////////////////////////////////
+//						APPENDECTOMY							//
+//////////////////////////////////////////////////////////////////
+
+/datum/surgery_step/appendectomy/
+	can_infect = 1
+	blood_level = 1
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		if (target_zone != "groin")
+			return 0
+		var/datum/organ/external/groin = target.get_organ("groin")
+		if (!groin)
+			return 0
+		if (groin.open < 2)
+			return 0
+		return 1
+
+/datum/surgery_step/appendectomy/cut_appendix
+	required_tool = /obj/item/weapon/scalpel
+	allowed_tools = list(/obj/item/weapon/shard, /obj/item/weapon/kitchenknife)
+
+	min_duration = 70
+	max_duration = 90
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..() && target.op_stage.appendix == 0
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("[user] starts to separating [target]'s appendix from the abdominal wall with \the [tool].", \
+		"You start to separating [target]'s appendix from the abdominal wall with \the [tool]." )
+		target.custom_pain("The pain in your abdomen is living hell!",1)
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\blue [user] has separated [target]'s appendix with \the [tool]." , \
+		"\blue You have separated [target]'s appendix with \the [tool].")
+		target.op_stage.appendix = 1
+
+	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/groin = target.get_organ("groin")
+		user.visible_message("\red [user]'s hand slips, slicing an artery inside [target]'s abdomen with \the [tool]!", \
+		"\red Your hand slips, slicing an artery inside [target]'s abdomen with \the [tool]!")
+		groin.createwound(CUT, 50, 1)
+
+/datum/surgery_step/appendectomy/remove_appendix
+	required_tool = /obj/item/weapon/hemostat
+	allowed_tools = list(/obj/item/weapon/wirecutters)
+
+	min_duration = 60
+	max_duration = 80
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..() && target.op_stage.appendix == 1
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("[user] starts removing [target]'s appendix with \the [tool].", \
+		"You start removing [target]'s appendix with \the [tool].")
+		target.custom_pain("Someone's ripping out your bowels!",1)
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\blue [user] has removed [target]'s appendix with \the [tool].", \
+		"\blue You have removed [target]'s appendix with \the [tool].")
+		var/app = 0
+		for(var/datum/disease/appendicitis/appendicitis in target.viruses)
+			app = 1
+			appendicitis.cure()
+			target.resistances += appendicitis
+		if (app)
+			new /obj/item/weapon/reagent_containers/food/snacks/appendix/inflamed(get_turf(target))
+		else
+			new /obj/item/weapon/reagent_containers/food/snacks/appendix(get_turf(target))
+		target.op_stage.appendix = 2
+
+	fail_step(mob/living/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, nicking internal organs in [target]'s abdomen with \the [tool]!", \
+		"\red Your hand slips, nicking internal organs in [target]'s abdomen with \the [tool]!")
+		affected.createwound(BRUISE, 20)

code/modules/surgery/bones.dm

@@ -0,0 +1,134 @@
+//Procedures in this file: Fracture repair surgery
+//////////////////////////////////////////////////////////////////
+//						BONE SURGERY							//
+//////////////////////////////////////////////////////////////////
+
+/datum/surgery_step/glue_bone
+	required_tool = /obj/item/weapon/bonegel
+	allowed_tools = list(/obj/item/weapon/screwdriver)
+	can_infect = 1
+	blood_level = 1
+
+	min_duration = 50
+	max_duration = 60
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		return affected.open == 2 && affected.stage == 0
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		if (affected.stage == 0)
+			user.visible_message("[user] starts applying medication to the damaged bones in [target]'s [affected.display_name] with \the [tool]." , \
+			"You start applying medication to the damaged bones in [target]'s [affected.display_name] with \the [tool].")
+		target.custom_pain("Something in your [affected.display_name] is causing you a lot of pain!",1)
+		..()
+
+	end_step(mob/living/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] applies some [tool] to [target]'s bone in [affected.display_name]", \
+			"\blue You apply some [tool] to [target]'s bone in [affected.display_name] with \the [tool].")
+		affected.stage = 1
+
+	fail_step(mob/living/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, smearing [tool] in the incision in [target]'s [affected.display_name]!" , \
+		"\red Your hand slips, smearing [tool] in the incision in [target]'s [affected.display_name]!")
+
+/datum/surgery_step/set_bone
+	required_tool = /obj/item/weapon/bonesetter
+	allowed_tools = list(/obj/item/weapon/wrench)
+
+	min_duration = 60
+	max_duration = 70
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		return affected.name != "head" && affected.open == 2 && affected.stage == 1
+
+	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] is beginning to set the bone in [target]'s [affected.display_name] in place with \the [tool]." , \
+			"You are beginning to set the bone in [target]'s [affected.display_name] in place with \the [tool].")
+		target.custom_pain("The pain in your [affected.display_name] is going to make you pass out!",1)
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		if (affected.status & ORGAN_BROKEN)
+			user.visible_message("\blue [user] sets the bone in [target]'s [affected.display_name] in place with \the [tool].", \
+				"\blue You set the bone in [target]'s [affected.display_name] in place with \the [tool].")
+			affected.stage = 2
+		else
+			user.visible_message("\blue [user] sets the bone in [target]'s [affected.display_name]\red in the WRONG place with \the [tool].", \
+				"\blue You set the bone in [target]'s [affected.display_name]\red in the WRONG place with \the [tool].")
+			affected.fracture()
+
+	fail_step(mob/living/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 the bone in [target]'s [affected.display_name] with \the [tool]!" , \
+			"\red Your hand slips, damaging the bone in [target]'s [affected.display_name] with \the [tool]!")
+		affected.createwound(BRUISE, 5)
+
+/datum/surgery_step/mend_skull
+	required_tool = /obj/item/weapon/bonesetter
+	allowed_tools = list(/obj/item/weapon/wrench)
+
+	min_duration = 60
+	max_duration = 70
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		return affected.name == "head" && affected.open == 2 && affected.stage == 1
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("[user] is beginning piece together [target]'s skull with \the [tool]."  , \
+			"You are beginning piece together [target]'s skull with \the [tool].")
+		..()
+
+	end_step(mob/living/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] sets [target]'s skull with \the [tool]." , \
+			"\blue You set [target]'s skull with \the [tool].")
+		affected.stage = 2
+
+	fail_step(mob/living/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 [target]'s face with \the [tool]!"  , \
+			"\red Your hand slips, damaging [target]'s face with \the [tool]!")
+		var/datum/organ/external/head/h = affected
+		h.createwound(BRUISE, 10)
+		h.disfigured = 1
+
+/datum/surgery_step/finish_bone
+	required_tool = /obj/item/weapon/bonegel
+	allowed_tools = list(/obj/item/weapon/screwdriver)
+	can_infect = 1
+	blood_level = 1
+
+	min_duration = 50
+	max_duration = 60
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		return affected.open == 2 && affected.stage == 2
+
+	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 to finish mending the damaged bones in [target]'s [affected.display_name] with \the [tool].", \
+		"You start to finish mending the damaged bones in [target]'s [affected.display_name] with \the [tool].")
+		..()
+
+	end_step(mob/living/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 mended the damaged bones in [target]'s [affected.display_name] with \the [tool]."  , \
+			"\blue You have mended the damaged bones in [target]'s [affected.display_name] with \the [tool]." )
+		affected.status &= ~ORGAN_BROKEN
+		affected.status &= ~ORGAN_SPLINTED
+		affected.stage = 0
+		affected.perma_injury = 0
+
+	fail_step(mob/living/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, smearing [tool] in the incision in [target]'s [affected.display_name]!" , \
+		"\red Your hand slips, smearing [tool] in the incision in [target]'s [affected.display_name]!")

code/modules/surgery/braincore.dm

@@ -0,0 +1,180 @@
+//Procedures in this file: Brain extraction. slime Core extraction.
+//////////////////////////////////////////////////////////////////
+//						BRAIN SURGERY							//
+//////////////////////////////////////////////////////////////////
+
+/datum/surgery_step/brain/
+	blood_level = 1
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return target_zone == "head" && hasorgans(target)
+
+/datum/surgery_step/brain/saw_skull
+	required_tool = /obj/item/weapon/circular_saw
+
+	min_duration = 50
+	max_duration = 70
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..() && target_zone == "head" && target.brain_op_stage == 1
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("[user] begins to cut through [target]'s skull with \the [tool].", \
+		"You begin to cut through [target]'s skull with \the [tool].")
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\blue [user] has cut through [target]'s skull open with \the [tool].",		\
+		"\blue You have cut through [target]'s skull open with \the [tool].")
+		target.brain_op_stage = 2
+
+	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\red [user]'s hand slips, cracking [target]'s skull with \the [tool]!" , \
+		"\red Your hand slips, cracking [target]'s skull with \the [tool]!" )
+		target.apply_damage(10, BRUTE, "head")
+
+/datum/surgery_step/brain/cut_brain
+	required_tool = /obj/item/weapon/scalpel
+	allowed_tools = list(/obj/item/weapon/shard, /obj/item/weapon/kitchenknife)
+
+	min_duration = 80
+	max_duration = 100
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..() && target.brain_op_stage == 2
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("[user] starts separating connections to [target]'s brain with \the [tool].", \
+		"You start separating connections to [target]'s brain with \the [tool].")
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\blue [user] separates connections to [target]'s brain with \the [tool].",	\
+		"\blue You separate connections to [target]'s brain with \the [tool].")
+		target.brain_op_stage = 3
+
+	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\red [user]'s hand slips, cutting a vein in [target]'s brain with \the [tool]!", \
+		"\red Your hand slips, cutting a vein in [target]'s brain with \the [tool]!")
+		target.apply_damage(50, BRUTE, "head", 1)
+
+/datum/surgery_step/brain/saw_spine
+	required_tool = /obj/item/weapon/circular_saw
+
+	min_duration = 50
+	max_duration = 70
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..() && target.brain_op_stage == 3
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("[user] starts separating [target]'s brain from \his spine with \the [tool].", \
+		"You start separating [target]'s brain from spine with \the [tool].")
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\blue [user] separates [target]'s brain from \his spine with \the [tool].",	\
+		"\blue You separate [target]'s brain from spine with \the [tool].")
+
+		user.attack_log += "\[[time_stamp()]\]<font color='red'> Debrained [target.name] ([target.ckey]) with [tool.name] (INTENT: [uppertext(user.a_intent)])</font>"
+		target.attack_log += "\[[time_stamp()]\]<font color='orange'> Debrained by [user.name] ([user.ckey]) with [tool.name] (INTENT: [uppertext(user.a_intent)])</font>"
+
+		log_admin("ATTACK: [user] ([user.ckey]) debrained [target] ([target.ckey]) with [tool].")
+		message_admins("ATTACK: [user] ([user.ckey]) debrained [target] ([target.ckey]) with [tool].")
+		log_attack("<font color='red'>[user.name] ([user.ckey]) debrained [target.name] ([target.ckey]) with [tool.name] (INTENT: [uppertext(user.a_intent)])</font>")
+
+		var/obj/item/brain/B = new(target.loc)
+		B.transfer_identity(target)
+
+		target:brain_op_stage = 4.0
+		target.death()//You want them to die after the brain was transferred, so not to trigger client death() twice.
+
+	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\red [user]'s hand slips, cutting a vein in [target]'s brain with \the [tool]!", \
+		"\red Your hand slips, cutting a vein in [target]'s brain with \the [tool]!")
+		target.apply_damage(30, BRUTE, "head", 1)
+		if (ishuman(user))
+			user:bloody_body(target)
+			user:bloody_hands(target, 0)
+
+
+//////////////////////////////////////////////////////////////////
+//				slime CORE EXTRACTION							//
+//////////////////////////////////////////////////////////////////
+
+/datum/surgery_step/slime/
+	can_use(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
+		return istype(target, /mob/living/carbon/slime/) && target.stat == 2
+
+/datum/surgery_step/slime/cut_flesh
+	required_tool = /obj/item/weapon/scalpel
+	allowed_tools = list(/obj/item/weapon/shard, /obj/item/weapon/kitchenknife)
+
+	min_duration = 30
+	max_duration = 50
+
+	can_use(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
+		return ..() && target.brain_op_stage == 0
+
+	begin_step(mob/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
+		user.visible_message("[user] starts cutting [target]'s flesh with \the [tool].", \
+		"You start cutting [target]'s flesh with \the [tool].")
+
+	end_step(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
+		user.visible_message("\blue [user] cuts [target]'s flesh with \the [tool].",	\
+		"\blue You cut [target]'s flesh with \the [tool], exposing the cores")
+		target.brain_op_stage = 1
+
+	fail_step(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
+		user.visible_message("\red [user]'s hand slips, tearing [target]'s flesh with \the [tool]!", \
+		"\red Your hand slips, tearing [target]'s flesh with \the [tool]!")
+
+/datum/surgery_step/slime/cut_innards
+	required_tool = /obj/item/weapon/scalpel
+	allowed_tools = list(/obj/item/weapon/shard, /obj/item/weapon/kitchenknife)
+
+	min_duration = 30
+	max_duration = 50
+
+	can_use(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
+		return ..() && target.brain_op_stage == 1
+
+	begin_step(mob/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
+		user.visible_message("[user] starts cutting [target]'s silky innards apart with \the [tool].", \
+		"You start cutting [target]'s silky innards apart with \the [tool].")
+
+	end_step(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
+		user.visible_message("\blue [user] cuts [target]'s innards apart with \the [tool], exposing the cores",	\
+		"\blue You cut [target]'s innards apart with \the [tool], exposing the cores")
+		target.brain_op_stage = 2
+
+	fail_step(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
+		user.visible_message("\red [user]'s hand slips, tearing [target]'s innards with \the [tool]!", \
+		"\red Your hand slips, tearing [target]'s innards with \the [tool]!")
+
+/datum/surgery_step/slime/saw_core
+	required_tool = /obj/item/weapon/circular_saw
+
+	min_duration = 50
+	max_duration = 70
+
+	can_use(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
+		return ..() && target.brain_op_stage == 2 && target.cores > 0
+
+	begin_step(mob/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
+		user.visible_message("[user] starts cutting out one of [target]'s cores with \the [tool].", \
+		"You start cutting out one of [target]'s cores with \the [tool].")
+
+	end_step(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
+		target.cores--
+		user.visible_message("\blue [user] cuts out one of [target]'s cores with \the [tool].",,	\
+		"\blue You cut out one of [target]'s cores with \the [tool]. [target.cores] cores left.")
+
+		if(target.cores >= 0)
+			new target.coretype(target.loc)
+		if(target.cores <= 0)
+			target.icon_state = "baby roro dead-nocore"
+
+
+	fail_step(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
+		user.visible_message("\red [user]'s hand slips, failing to cut core out!", \
+		"\red Your hand slips, failing to cut core out!")

code/modules/surgery/eye.dm

@@ -0,0 +1,121 @@
+//Procedures in this file: Eye mending surgery
+//////////////////////////////////////////////////////////////////
+//						EYE SURGERY							//
+//////////////////////////////////////////////////////////////////
+
+/datum/surgery_step/eye
+	can_infect = 1
+	can_use(mob/living/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
+		return target_zone == "eyes"
+
+/datum/surgery_step/eye/cut_open
+	required_tool = /obj/item/weapon/scalpel
+	allowed_tools = list(/obj/item/weapon/shard, /obj/item/weapon/kitchenknife)
+
+	min_duration = 90
+	max_duration = 110
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..()
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("[user] starts to separate the corneas on [target]'s eyes with \the [tool].", \
+		"You start to separate the corneas on [target]'s eyes with \the [tool].")
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\blue [user] has separated the corneas on [target]'s eyes with \the [tool]." , \
+		"\blue You have separated the corneas on [target]'s eyes with \the [tool].",)
+		target.op_stage.eyes = 1
+
+	fail_step(mob/living/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, slicing [target]'s eyes wth \the [tool]!" , \
+		"\red Your hand slips, slicing [target]'s eyes wth \the [tool]!" )
+		affected.createwound(CUT, 10)
+
+/datum/surgery_step/eye/lift_eyes
+	required_tool = /obj/item/weapon/retractor
+	allowed_tools = list(/obj/item/weapon/kitchen/utensil/fork)
+
+	min_duration = 30
+	max_duration = 40
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..() && target.op_stage.eyes == 1
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("[user] starts lifting corneas from [target]'s eyes with \the [tool].", \
+		"You start lifting corneas from [target]'s eyes with \the [tool].")
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\blue [user] has lifted the corneas from [target]'s eyes from with \the [tool]." , \
+		"\blue You has lifted the corneas from [target]'s eyes from with \the [tool]." )
+		target.op_stage.eyes = 2
+
+	fail_step(mob/living/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 [target]'s eyes with \the [tool]!", \
+		"\red Your hand slips, damaging [target]'s eyes with \the [tool]!")
+		target.apply_damage(10, BRUTE, affected)
+
+/datum/surgery_step/eye/mend_eyes
+	required_tool = /obj/item/weapon/hemostat
+	allowed_tools = list(/obj/item/weapon/cable_coil, /obj/item/device/assembly/mousetrap)
+
+	min_duration = 80
+	max_duration = 100
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..() && target.op_stage.eyes == 2
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("[user] starts mending the nerves and lenses in [target]'s eyes with \the [tool].", \
+		"You start mending the nerves and lenses in [target]'s eyes with the [tool].")
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\blue [user] mends the nerves and lenses in [target]'s with \the [tool]." ,	\
+		"\blue You mend the nerves and lenses in [target]'s with \the [tool].")
+		target.op_stage.eyes = 3
+
+	fail_step(mob/living/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, stabbing \the [tool] into [target]'s eye!", \
+		"\red Your hand slips, stabbing \the [tool] into [target]'s eye!")
+		target.apply_damage(10, BRUTE, affected)
+
+/datum/surgery_step/eye/cauterize
+	required_tool = /obj/item/weapon/cautery
+	allowed_tools = list(/obj/item/weapon/weldingtool, /obj/item/clothing/mask/cigarette, /obj/item/weapon/lighter)
+
+	min_duration = 70
+	max_duration = 100
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..()
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("[user] is beginning to cauterize the incision around [target]'s eyes with \the [tool]." , \
+		"You are beginning to cauterize the incision around [target]'s eyes with \the [tool].")
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\blue [user] cauterizes the incision around [target]'s eyes with \the [tool].", \
+		"\blue You cauterize the incision around [target]'s eyes with \the [tool].")
+		if (target.op_stage.eyes == 3)
+			target.sdisabilities &= ~BLIND
+			target.eye_stat = 0
+		target.op_stage.eyes = 0
+
+	fail_step(mob/living/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,  searing [target]'s eyes with \the [tool]!", \
+		"\red Your hand slips, searing [target]'s eyes with \the [tool]!")
+		target.apply_damage(5, BURN, affected)
+		target.eye_stat += 5

code/modules/surgery/face.dm

@@ -0,0 +1,124 @@
+//Procedures in this file: Facial reconstruction surgery
+//////////////////////////////////////////////////////////////////
+//						FACE SURGERY							//
+//////////////////////////////////////////////////////////////////
+
+/datum/surgery_step/face
+	can_infect = 0
+	can_use(mob/living/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
+		return target_zone == "mouth" && affected.open == 2 && !(affected.status & ORGAN_BLEEDING)
+
+/datum/surgery_step/generic/cut_face
+	required_tool = /obj/item/weapon/scalpel
+	allowed_tools = list(/obj/item/weapon/shard, /obj/item/weapon/kitchenknife)
+
+	min_duration = 90
+	max_duration = 110
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..() && target_zone == "mouth" && target.op_stage.face == 0
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("[user] starts to cut open [target]'s face and neck with \the [tool].", \
+		"You start to cut open [target]'s face and neck with \the [tool].")
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\blue [user] has cut open [target]'s face and neck with \the [tool]." , \
+		"\blue You have cut open [target]'s face and neck with \the [tool].",)
+		target.op_stage.face = 1
+
+	fail_step(mob/living/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, slicing [target]'s throat wth \the [tool]!" , \
+		"\red Your hand slips, slicing [target]'s throat wth \the [tool]!" )
+		affected.createwound(CUT, 60)
+		target.losebreath += 10
+
+/datum/surgery_step/face/mend_vocal
+	required_tool = /obj/item/weapon/hemostat
+	allowed_tools = list(/obj/item/weapon/cable_coil, /obj/item/device/assembly/mousetrap)
+
+	min_duration = 70
+	max_duration = 90
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..() && target.op_stage.face == 1
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("[user] starts mending [target]'s vocal cords with \the [tool].", \
+		"You start mending [target]'s vocal cords with \the [tool].")
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\blue [user] mends [target]'s vocal cords with \the [tool].", \
+		"\blue You mend [target]'s vocal cords with \the [tool].")
+		target.op_stage.face = 2
+
+	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\red [user]'s hand slips, clamping [target]'s trachea shut for a moment with \the [tool]!", \
+		"\red Your hand slips, clamping [user]'s trachea shut for a moment with \the [tool]!")
+		target.losebreath += 10
+
+/datum/surgery_step/face/fix_face
+	required_tool = /obj/item/weapon/retractor
+	allowed_tools = list(/obj/item/weapon/kitchen/utensil/fork)
+
+	min_duration = 80
+	max_duration = 100
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..() && target.op_stage.face == 2
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("[user] starts pulling skin on [target]'s face back in place with \the [tool].", \
+		"You start pulling skin on [target]'s face back in place with \the [tool].")
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\blue [user] pulls skin on [target]'s face back in place with \the [tool].",	\
+		"\blue You pull skin on [target]'s face back in place with \the [tool].")
+		target.op_stage.face = 3
+
+	fail_step(mob/living/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, tearing skin on [target]'s face with \the [tool]!", \
+		"\red Your hand slips, tearing skin on [target]'s face with \the [tool]!")
+		target.apply_damage(10, BRUTE, affected)
+
+/datum/surgery_step/face/cauterize
+	required_tool = /obj/item/weapon/cautery
+	allowed_tools = list(/obj/item/weapon/weldingtool, /obj/item/clothing/mask/cigarette, /obj/item/weapon/lighter)
+
+	min_duration = 70
+	max_duration = 100
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..() && target.op_stage.face > 0
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("[user] is beginning to cauterize the incision on [target]'s face and neck with \the [tool]." , \
+		"You are beginning to cauterize the incision on [target]'s face and neck with \the [tool].")
+		..()
+
+	end_step(mob/living/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] cauterizes the incision on [target]'s face and neck with \the [tool].", \
+		"\blue You cauterize the incision on [target]'s face and neck with \the [tool].")
+		affected.open = 0
+		affected.status &= ~ORGAN_BLEEDING
+		if (target.op_stage.face == 3)
+			var/datum/organ/external/head/h = affected
+			h.disfigured = 0
+		target.op_stage.face = 0
+
+	fail_step(mob/living/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, leaving a small burn on [target]'s face with \the [tool]!", \
+		"\red Your hand slips, leaving a small burn on [target]'s face with \the [tool]!")
+		target.apply_damage(4, BURN, affected)

code/modules/surgery/generic.dm

@@ -0,0 +1,167 @@
+//Procedures in this file: Gneric surgery steps
+//////////////////////////////////////////////////////////////////
+//						COMMON STEPS							//
+//////////////////////////////////////////////////////////////////
+
+/datum/surgery_step/generic/
+	can_infect = 1
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		if (target_zone == "eyes")	//there are specific steps for eye surgery
+			return 0
+		if (!hasorgans(target))
+			return 0
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		if (affected == null)
+			return 0
+		if (affected.status & ORGAN_DESTROYED)
+			return 0
+		if (affected.status & ORGAN_ROBOT)
+			return 0
+		return 1
+
+/datum/surgery_step/generic/cut_open
+	required_tool = /obj/item/weapon/scalpel
+	allowed_tools = list(/obj/item/weapon/shard, /obj/item/weapon/kitchenknife)
+
+	min_duration = 90
+	max_duration = 110
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		return ..() && affected.open == 0 && target_zone != "mouth"
+
+	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 the incision on [target]'s [affected.display_name] with \the [tool].", \
+		"You start the incision on [target]'s [affected.display_name] with \the [tool].")
+		target.custom_pain("You feel a horrible pain as if from a sharp knife in your [affected.display_name]!",1)
+		..()
+
+	end_step(mob/living/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 made an incision on [target]'s [affected.display_name] with \the [tool].", \
+		"\blue You have made an incision on [target]'s [affected.display_name] with \the [tool].",)
+		affected.open = 1
+		affected.createwound(CUT, 1)
+		if (target_zone == "head")
+			target.brain_op_stage = 1
+
+	fail_step(mob/living/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, slicing open [target]'s [affected.display_name] in a wrong spot with \the [tool]!", \
+		"\red Your hand slips, slicing open [target]'s [affected.display_name] in a wrong spot with \the [tool]!")
+		affected.createwound(CUT, 10)
+
+/datum/surgery_step/generic/clamp_bleeders
+	required_tool = /obj/item/weapon/hemostat
+	allowed_tools = list(/obj/item/weapon/cable_coil, /obj/item/device/assembly/mousetrap)
+
+	min_duration = 40
+	max_duration = 60
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		return ..() && affected.open && (affected.status & ORGAN_BLEEDING)
+
+	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 clamping bleeders in [target]'s [affected.display_name] with \the [tool].", \
+		"You start clamping bleeders in [target]'s [affected.display_name] with \the [tool].")
+		target.custom_pain("The pain in your [affected.display_name] is maddening!",1)
+		..()
+
+	end_step(mob/living/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] clamps bleeders in [target]'s [affected.display_name] with \the [tool].",	\
+		"\blue You clamp bleeders in [target]'s [affected.display_name] with \the [tool].")
+		affected.clamp()
+		spread_germs_to_organ(affected, user)
+
+	fail_step(mob/living/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, tearing blood vessals and causing massive bleeding in [target]'s [affected.display_name] with the \[tool]!",	\
+		"\red Your hand slips, tearing blood vessels and causing massive bleeding in [target]'s [affected.display_name] with \the [tool]!",)
+		affected.createwound(CUT, 10)
+
+/datum/surgery_step/generic/retract_skin
+	required_tool = /obj/item/weapon/retractor
+	allowed_tools = list(/obj/item/weapon/kitchen/utensil/fork)
+
+	min_duration = 30
+	max_duration = 40
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		return ..() && affected.open < 2 && !(affected.status & ORGAN_BLEEDING)
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		var/msg = "[user] starts to pry open the incision on [target]'s [affected.display_name] with \the [tool]."
+		var/self_msg = "You start to pry open the incision on [target]'s [affected.display_name] with \the [tool]."
+		if (target_zone == "chest")
+			msg = "[user] starts to separate the ribcage and rearrange the organs in [target]'s torso with \the [tool]."
+			self_msg = "You start to separate the ribcage and rearrange the organs in [target]'s torso with \the [tool]."
+		if (target_zone == "groin")
+			msg = "[user] starts to pry open the incision and rearrange the organs in [target]'s lower abdomen with \the [tool]."
+			self_msg = "You start to pry open the incision and rearrange the organs in [target]'s lower abdomen with \the [tool]."
+		user.visible_message(msg, self_msg)
+		target.custom_pain("It feels like the skin on your [affected.display_name] is on fire!",1)
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		var/msg = "\blue [user] keeps the incision open on [target]'s [affected.display_name] with \the [tool]."
+		var/self_msg = "\blue You keep the incision open on [target]'s [affected.display_name] with \the [tool]."
+		if (target_zone == "chest")
+			msg = "\blue [user] keeps the ribcage open on [target]'s torso with \the [tool]."
+			self_msg = "\blue You keep the ribcage open on [target]'s torso with \the [tool]."
+		if (target_zone == "groin")
+			msg = "\blue [user] keeps the incision open on [target]'s lower abdomen with \the [tool]."
+			self_msg = "\blue You keep the incision open on [target]'s lower abdomen with \the [tool]."
+		user.visible_message(msg, self_msg)
+		affected.open = 2
+
+	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		var/msg = "\red [user]'s hand slips, tearing the edges of incision on [target]'s [affected.display_name] with \the [tool]!"
+		var/self_msg = "\red Your hand slips, tearing the edges of incision on [target]'s [affected.display_name] with \the [tool]!"
+		if (target_zone == "chest")
+			msg = "\red [user]'s hand slips, damaging several organs [target]'s torso with \the [tool]!"
+			self_msg = "\red Your hand slips, damaging several organs [target]'s torso with \the [tool]!"
+		if (target_zone == "groin")
+			msg = "\red [user]'s hand slips, damaging several organs [target]'s lower abdomen with \the [tool]"
+			self_msg = "\red Your hand slips, damaging several organs [target]'s lower abdomen with \the [tool]!"
+		user.visible_message(msg, self_msg)
+		target.apply_damage(12, BRUTE, affected)
+
+/datum/surgery_step/generic/cauterize
+	required_tool = /obj/item/weapon/cautery
+	allowed_tools = list(/obj/item/weapon/weldingtool, /obj/item/clothing/mask/cigarette, /obj/item/weapon/lighter)
+
+	min_duration = 70
+	max_duration = 100
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		return ..() && affected.open && target_zone != "mouth"
+
+	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] is beginning to cauterize the incision on [target]'s [affected.display_name] with \the [tool]." , \
+		"You are beginning to cauterize the incision on [target]'s [affected.display_name] with \the [tool].")
+		target.custom_pain("Your [affected.display_name] is being burned!",1)
+		..()
+
+	end_step(mob/living/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] cauterizes the incision on [target]'s [affected.display_name] with \the [tool].", \
+		"\blue You cauterize the incision on [target]'s [affected.display_name] with \the [tool].")
+		affected.open = 0
+		affected.germ_level = 0
+		affected.status &= ~ORGAN_BLEEDING
+
+	fail_step(mob/living/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, leaving a small burn on [target]'s [affected.display_name] with \the [tool]!", \
+		"\red Your hand slips, leaving a small burn on [target]'s [affected.display_name] with \the [tool]!")
+		target.apply_damage(3, BURN, affected)

code/modules/surgery/other.dm

@@ -0,0 +1,110 @@
+//Procedures in this file: Inernal wound patching, Implant removal.
+//////////////////////////////////////////////////////////////////
+//					INTERNAL WOUND PATCHING						//
+//////////////////////////////////////////////////////////////////
+
+
+/datum/surgery_step/fix_vein
+	required_tool = /obj/item/weapon/FixOVein
+	allowed_tools = list(/obj/item/weapon/cable_coil)
+	can_infect = 1
+	blood_level = 1
+
+	min_duration = 70
+	max_duration = 90
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+
+		var/internal_bleeding = 0
+		for(var/datum/wound/W in affected.wounds) if(W.internal)
+			internal_bleeding = 1
+			break
+
+		return affected.open == 2 && internal_bleeding
+
+	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 patching the damaged vein in [target]'s [affected.display_name] with \the [tool]." , \
+		"You start patching the damaged vein in [target]'s [affected.display_name] with \the [tool].")
+		target.custom_pain("The pain in [affected.display_name] is unbearable!",1)
+		..()
+
+	end_step(mob/living/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 patched the damaged vein in [target]'s [affected.display_name] with \the [tool].", \
+			"\blue You have patched the damaged vein in [target]'s [affected.display_name] with \the [tool].")
+
+		for(var/datum/wound/W in affected.wounds) if(W.internal)
+			affected.wounds -= W
+			affected.update_damages()
+		if (ishuman(user) && prob(40)) user:bloody_hands(target, 0)
+
+	fail_step(mob/living/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, smearing [tool] in the incision in [target]'s [affected.display_name]!" , \
+		"\red Your hand slips, smearing [tool] in the incision in [target]'s [affected.display_name]!")
+		affected.take_damage(5, 0)
+
+//////////////////////////////////////////////////////////////////
+//					IMPLANT REMOVAL SURGERY						//
+//////////////////////////////////////////////////////////////////
+
+/datum/surgery_step/implant_removal
+	required_tool = /obj/item/weapon/hemostat
+	allowed_tools = list(/obj/item/weapon/wirecutters, /obj/item/weapon/kitchen/utensil/fork)
+
+	min_duration = 80
+	max_duration = 100
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		return affected.open == 2 && !(affected.status & ORGAN_BLEEDING)
+
+	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 poking around inside the incision on [target]'s [affected.display_name] with \the [tool].", \
+		"You start poking around inside the incision on [target]'s [affected.display_name] with \the [tool]" )
+		target.custom_pain("The pain in your chest is living hell!",1)
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/chest/affected = target.get_organ(target_zone)
+
+		var/find_prob = 0
+		if (affected.implants.len)
+			var/obj/item/weapon/implant/imp = affected.implants[1]
+			if (imp.islegal())
+				find_prob +=60
+			else
+				find_prob +=40
+			if (isright(tool))
+				find_prob +=20
+
+		if (prob(find_prob))
+			user.visible_message("\blue [user] takes something out of incision on [target]'s [affected.display_name] with \the [tool].", \
+			"\blue You take something out of incision on [target]'s [affected.display_name]s with \the [tool]." )
+			var/obj/item/weapon/implant/imp = affected.implants[1]
+			affected.implants -= imp
+			imp.loc = get_turf(target)
+			imp.imp_in = null
+			imp.implanted = 0
+		else
+			user.visible_message("\blue [user] could not find anything inside [target]'s [affected.display_name], and pulls \the [tool] out.", \
+			"\blue You could not find anything inside [target]'s [affected.display_name]." )
+
+	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/chest/affected = target.get_organ(target_zone)
+		user.visible_message("\red [user]'s hand slips, scraping tissue inside [target]'s [affected.display_name] with \the [tool]!", \
+		"\red Your hand slips, scraping tissue inside [target]'s [affected.display_name] with \the [tool]!")
+		affected.createwound(CUT, 20)
+		if (affected.implants.len)
+			var/fail_prob = 10
+			if (!isright(tool))
+				fail_prob += 30
+			if (prob(fail_prob))
+				var/obj/item/weapon/implant/imp = affected.implants[1]
+				user.visible_message("\red Something beeps inside [target]'s [affected.display_name]!")
+				playsound(imp.loc, 'sound/items/countdown.ogg', 75, 1, -3)
+				spawn(25)
+					imp.activate()

code/modules/surgery/ribcage.dm

@@ -0,0 +1,196 @@
+//Procedures in this file: Generic ribcage opening steps, Removing alien embryo, Fixing ruptured lungs
+//////////////////////////////////////////////////////////////////
+//				GENERIC	RIBCAGE SURGERY							//
+//////////////////////////////////////////////////////////////////
+/datum/surgery_step/ribcage
+	can_infect = 1
+	blood_level = 1
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return target_zone == "chest"
+
+/datum/surgery_step/ribcage/saw_ribcage
+	required_tool = /obj/item/weapon/circular_saw
+
+	min_duration = 50
+	max_duration = 70
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		return ..() && target.op_stage.ribcage == 0 && affected.open >= 2
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("[user] begins to cut through [target]'s ribcage with \the [tool].", \
+		"You begin to cut through [target]'s ribcage with \the [tool].")
+		target.custom_pain("Something hurts horribly in your chest!",1)
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\blue [user] has cut through [target]'s ribcage open with \the [tool].",		\
+		"\blue You have cut through [target]'s ribcage open with \the [tool].")
+		target.op_stage.ribcage = 1
+
+	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\red [user]'s hand slips, cracking [target]'s ribcage with \the [tool]!" , \
+		"\red Your hand slips, cracking [target]'s ribcage with \the [tool]!" )
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		affected.createwound(CUT, 20)
+		affected.fracture()
+
+
+/datum/surgery_step/ribcage/retract_ribcage
+	required_tool = /obj/item/weapon/retractor
+	allowed_tools = list(/obj/item/weapon/crowbar)
+
+	min_duration = 30
+	max_duration = 40
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..() && target.op_stage.ribcage == 1
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/msg = "[user] starts to force open the ribcage in [target]'s torso with \the [tool]."
+		var/self_msg = "You start to force open the ribcage in [target]'s torso with \the [tool]."
+		user.visible_message(msg, self_msg)
+		target.custom_pain("Something hurts horribly in your chest!",1)
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/msg = "\blue [user] forces open [target]'s ribcage with \the [tool]."
+		var/self_msg = "\blue You force open [target]'s ribcage with \the [tool]."
+		user.visible_message(msg, self_msg)
+		target.op_stage.ribcage = 2
+
+		// Whoops!
+		if(prob(10))
+			var/datum/organ/external/affected = target.get_organ(target_zone)
+			affected.fracture()
+
+	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/msg = "\red [user]'s hand slips, breaking [target]'s ribcage!"
+		var/self_msg = "\red Your hand slips, breaking [target]'s ribcage!"
+		user.visible_message(msg, self_msg)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		affected.createwound(BRUISE, 20)
+		affected.fracture()
+
+/datum/surgery_step/ribcage/close_ribcage
+	required_tool = /obj/item/weapon/retractor
+	allowed_tools = list(/obj/item/weapon/crowbar)
+
+	min_duration = 20
+	max_duration = 40
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..() && target.op_stage.ribcage == 2
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/msg = "[user] starts bending [target]'s ribcage back into place with \the [tool]."
+		var/self_msg = "You start bending [target]'s ribcage back into place with \the [tool]."
+		user.visible_message(msg, self_msg)
+		target.custom_pain("Something hurts horribly in your chest!",1)
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/msg = "\blue [user] bends [target]'s ribcage back into place with \the [tool]."
+		var/self_msg = "\blue You bend [target]'s ribcage back into place with \the [tool]."
+		user.visible_message(msg, self_msg)
+
+		target.op_stage.ribcage = 1
+
+	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/msg = "\red [user]'s hand slips, bending [target]'s ribcage in a wrong shape!"
+		var/self_msg = "\red Your hand slips, bending [target]'s ribcage in a wrong shape!"
+		user.visible_message(msg, self_msg)
+		var/datum/organ/external/chest/affected = target.get_organ("chest")
+		affected.createwound(BRUISE, 20)
+		affected.fracture()
+		if (prob(40))
+			user.visible_message("\red Rib pierces the lung!")
+			affected.ruptured_lungs = 1
+
+/datum/surgery_step/ribcage/mend_ribcage
+	required_tool = /obj/item/weapon/bonegel
+
+	min_duration = 20
+	max_duration = 40
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..() && target.op_stage.ribcage == 1
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/msg = "[user] starts applying \the [tool] to [target]'s ribcage."
+		var/self_msg = "You start applying \the [tool] to [target]'s ribcage."
+		user.visible_message(msg, self_msg)
+		target.custom_pain("Something hurts horribly in your chest!",1)
+		..()
+
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/msg = "\blue [user] applied \the [tool] to [target]'s ribcage."
+		var/self_msg = "\blue You applied \the [tool] to [target]'s ribcage."
+		user.visible_message(msg, self_msg)
+
+		target.op_stage.ribcage = 0
+
+//////////////////////////////////////////////////////////////////
+//					ALIEN EMBRYO SURGERY						//
+//////////////////////////////////////////////////////////////////
+/datum/surgery_step/ribcage/remove_embryo
+	required_tool = /obj/item/weapon/hemostat
+	blood_level = 2
+
+	min_duration = 80
+	max_duration = 100
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/embryo = 0
+		for(var/obj/item/alien_embryo/A in target)
+			embryo = 1
+			break
+		return ..() && embryo && target.op_stage.ribcage == 2
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/msg = "[user] starts to pull something out from [target]'s ribcage with \the [tool]."
+		var/self_msg = "You start to pull something out from [target]'s ribcage with \the [tool]."
+		user.visible_message(msg, self_msg)
+		target.custom_pain("Something hurts horribly in your chest!",1)
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("\red [user] rips the larva out of [target]'s ribcage!",
+							 "You rip the larva out of [target]'s ribcage!")
+
+		for(var/obj/item/alien_embryo/A in target)
+			A.loc = A.loc.loc
+
+
+//////////////////////////////////////////////////////////////////
+//					LUNG SURGERY								//
+//////////////////////////////////////////////////////////////////
+/datum/surgery_step/ribcage/fix_lungs
+	required_tool = /obj/item/weapon/scalpel
+	allowed_tools = list(/obj/item/weapon/shard, /obj/item/weapon/kitchenknife)
+
+	min_duration = 70
+	max_duration = 90
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return ..() && target.is_lung_ruptured() && target.op_stage.ribcage == 2
+
+	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		user.visible_message("[user] starts mending the rupture in [target]'s lungs with \the [tool].", \
+		"You start mending the rupture in [target]'s lungs with \the [tool]." )
+		target.custom_pain("The pain in your chest is living hell!",1)
+		..()
+
+	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/chest/affected = target.get_organ("chest")
+		user.visible_message("\blue [user] mends the rupture in [target]'s lungs with \the [tool].", \
+		"\blue You mend the rupture in [target]'s lungs with \the [tool]." )
+		affected.ruptured_lungs = 0
+
+	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/chest/affected = target.get_organ("chest")
+		user.visible_message("\red [user]'s hand slips, slicing an artery inside [target]'s chest with \the [tool]!", \
+		"\red Your hand slips, slicing an artery inside [target]'s chest with \the [tool]!")
+		affected.createwound(CUT, 20)

code/modules/surgery/robolimbs.dm

@@ -0,0 +1,151 @@
+//Procedures in this file: Robotic limbs attachment
+//////////////////////////////////////////////////////////////////
+//						LIMB SURGERY							//
+//////////////////////////////////////////////////////////////////
+
+/datum/surgery_step/limb/
+	can_infect = 1
+	can_use(mob/living/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/cut
+	required_tool = /obj/item/weapon/scalpel
+	allowed_tools = list(/obj/item/weapon/shard, /obj/item/weapon/kitchenknife)
+
+	min_duration = 80
+	max_duration = 100
+
+	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 cutting away flesh where [target]'s [affected.display_name] used to be with \the [tool].", \
+		"You start cutting away flesh where [target]'s [affected.display_name] used to be with \the [tool].")
+		..()
+
+	end_step(mob/living/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] cuts away flesh where [target]'s [affected.display_name] used to be with \the [tool].",	\
+		"\blue You cut away flesh where [target]'s [affected.display_name] used to be with \the [tool].")
+		affected.status |= ORGAN_CUT_AWAY
+
+	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		if (affected.parent)
+			affected = affected.parent
+			user.visible_message("\red [user]'s hand slips, cutting [target]'s [affected.display_name] open!", \
+			"\red Your hand slips,  cutting [target]'s [affected.display_name] open!")
+			affected.createwound(CUT, 10)
+
+
+/datum/surgery_step/limb/mend
+	required_tool = /obj/item/weapon/retractor
+	allowed_tools = list(/obj/item/weapon/kitchen/utensil/fork)
+
+	min_duration = 80
+	max_duration = 100
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		return ..() && affected.status & ORGAN_CUT_AWAY
+
+	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] is beginning reposition flesh and nerve endings where where [target]'s [affected.display_name] used to be with [tool].", \
+		"You start repositioning flesh and nerve endings where where [target]'s [affected.display_name] used to be with [tool].")
+		..()
+
+	end_step(mob/living/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 finished repositioning flesh and nerve endings where [target]'s [affected.display_name] used to be with [tool].",	\
+		"\blue You have finished repositioning flesh and nerve endings where [target]'s [affected.display_name] used to be with [tool].")
+		affected.open = 3
+
+	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		if (affected.parent)
+			affected = affected.parent
+			user.visible_message("\red [user]'s hand slips, tearing flesh on [target]'s [affected.display_name]!", \
+			"\red Your hand slips, tearing flesh on [target]'s [affected.display_name]!")
+			target.apply_damage(10, BRUTE, affected)
+
+
+/datum/surgery_step/limb/prepare
+	required_tool = /obj/item/weapon/cautery
+	allowed_tools = list(/obj/item/weapon/weldingtool, /obj/item/clothing/mask/cigarette, /obj/item/weapon/lighter)
+
+	min_duration = 60
+	max_duration = 70
+
+	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		return ..() && affected.open == 3
+
+	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 adjusting area around [target]'s [affected.display_name] with \the [tool].", \
+		"You start adjusting area around [target]'s [affected.display_name] with \the [tool]..")
+		..()
+
+	end_step(mob/living/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 finished adjusting the area around [target]'s [affected.display_name] with \the [tool].",	\
+		"\blue You have finished adjusting the area around [target]'s [affected.display_name] with \the [tool].")
+		affected.status |= ORGAN_ATTACHABLE
+		affected.amputated = 1
+		affected.setAmputatedTree()
+		affected.open = 0
+
+	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		if (affected.parent)
+			affected = affected.parent
+			user.visible_message("\red [user]'s hand slips, searing [target]'s [affected.display_name]!", \
+			"\red Your hand slips, searing [target]'s [affected.display_name]!")
+			target.apply_damage(10, BURN, affected)
+
+
+/datum/surgery_step/limb/attach
+	required_tool = /obj/item/robot_parts
+	can_infect = 0
+
+	min_duration = 80
+	max_duration = 100
+
+	can_use(mob/living/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/living/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/living/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/modules/surgery/surgery.dm

@@ -0,0 +1,85 @@
+/* SURGERY STEPS */
+
+/datum/surgery_step
+	// type path referencing the required tool for this step
+	var/required_tool = null
+
+	// type path referencing tools that can be used as substitude for this step
+	var/list/allowed_tools = null
+
+	// duration of the step
+	var/min_duration = 0
+	var/max_duration = 0
+
+	// evil infection stuff that will make everyone hate me
+	var/can_infect = 0
+	//How much blood this step can get on surgeon. 1 - hands, 2 - full body.
+	var/blood_level = 0
+
+	//is it is a required surgical tool for this step
+	proc/isright(obj/item/tool)
+		return (istype(tool,required_tool))
+
+	//is it is an accepted replacement tool for this step
+	proc/isacceptable(obj/item/tool)
+		if (allowed_tools)
+			for (var/T in allowed_tools)
+				if (istype(tool,T))
+					return 1
+		return 0
+
+	// checks whether this step can be applied with the given user and target
+	proc/can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return 0
+
+	// does stuff to begin the step, usually just printing messages. Moved germs transfering and bloodying here too
+	proc/begin_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		var/datum/organ/external/affected = target.get_organ(target_zone)
+		if (can_infect && affected)
+			spread_germs_to_organ(affected, user)
+		if (ishuman(user) && prob(60))
+			var/mob/living/carbon/human/H = user
+			if (blood_level)
+				H.bloody_hands(target,0)
+			if (blood_level > 1)
+				H.bloody_body(target,0)
+		return
+
+	// does stuff to end the step, which is normally print a message + do whatever this step changes
+	proc/end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return
+
+	// stuff that happens when the step fails
+	proc/fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
+		return null
+
+proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
+	if(!istype(user) || !istype(E)) return
+
+	var/germ_level = user.germ_level
+	if(user.gloves)
+		germ_level = user.gloves.germ_level
+
+	E.germ_level = max(germ_level,E.germ_level) //as funny as scrubbing microbes out with clean gloves is - no.
+
+proc/do_surgery(mob/living/M, mob/living/user, obj/item/tool)
+	if(!istype(M,/mob/living/carbon))
+		return 0
+	if (user.a_intent == "harm")	//check for Hippocratic Oath
+		return 0
+	for(var/datum/surgery_step/S in surgery_steps)
+		if( S.isright(tool) || S.isacceptable(tool) && \
+		S.can_use(user, M, user.zone_sel.selecting, tool))	 	//check if tool is right or close enough and if this step is possible
+			S.begin_step(user, M, user.zone_sel.selecting, tool)			//start on it
+			if(do_mob(user, M, rand(S.min_duration, S.max_duration)))	//if user did nto move or changed hands
+				S.end_step(user, M, user.zone_sel.selecting, tool)		//finish successfully
+			else														//or
+				S.fail_step(user, M, user.zone_sel.selecting, tool)		//malpractice~
+			return	1	  												//don't want to do weapony things after surgery
+	return 0
+
+/datum/surgery_status/
+	var/eyes	=	0
+	var/face	=	0
+	var/appendix =	0
+	var/ribcage =	0