Personal Crafting & Dependencies

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

@@ -53,6 +53,7 @@
 		sync_organ_dna()
 
 	verbs |= /mob/living/proc/toggle_selfsurgery
+	AddComponent(/datum/component/personal_crafting)
 
 /mob/living/carbon/human/Destroy()
 	human_mob_list -= src

code/modules/mob/login.dm

@@ -43,6 +43,7 @@
 	next_move = 1
 	sight |= SEE_SELF
 	..()
+	SEND_SIGNAL(src, COMSIG_MOB_LOGIN)
 
 	if(loc && !isturf(loc))
 		client.eye = loc
@@ -80,4 +81,5 @@
 		update_client_z(T.z)
 
 	if(cloaked && cloaked_selfimage)
-		client.images += cloaked_selfimage
+		client.images += cloaked_selfimage
+	SEND_SIGNAL(src, COMSIG_MOB_CLIENT_LOGIN, client)

code/modules/projectiles/broken.dm

@@ -80,7 +80,7 @@
 		material_needs[component_needed] = rand(1,3)
 
 	if(ispath(my_guntype, /obj/item/weapon/gun/launcher) && prob(50))
-		var/component_needed = pick(/obj/item/weapon/tape_roll, /obj/item/weapon/material/wirerod)
+		var/component_needed = pick(/obj/item/weapon/tape_roll, /obj/item/stack/rods, /obj/item/weapon/handcuffs/cable)
 		material_needs[component_needed] = 1
 
 	if(ispath(my_guntype, /obj/item/weapon/gun/magnetic) && prob(70))

code/modules/projectiles/guns/modular_guns.dm

@@ -37,7 +37,8 @@
 	CheckParts()
 	FireModeModify()
 
-/obj/item/weapon/gun/energy/modular/proc/CheckParts() //What parts do we have inside us, and how good are they?
+/obj/item/weapon/gun/energy/modular/CheckParts() //What parts do we have inside us, and how good are they?
+	..()
 	capacitor_rating = 0
 	laser_rating = 0
 	manipulator_rating = 0

code/modules/reagents/holder/holder.dm

@@ -516,4 +516,16 @@
 			trans_to(M, mobportion, multiplier, copy)
 	trans_to(T, total_volume, multiplier, copy)
 	if (total_volume <= 0)
-		qdel(src)
+		qdel(src)
+		
+/**
+ * Calls [/datum/reagent/proc/on_update] on every reagent in this holder
+ *
+ * Arguments:
+ * * atom/A - passed to on_update
+ */
+/datum/reagents/proc/conditional_update(atom/A)
+	var/list/cached_reagents = reagent_list
+	for(var/datum/reagent/reagent as anything in cached_reagents)
+		reagent.on_update(A)
+	update_total()

code/modules/reagents/reagents/_reagents.dm

@@ -235,3 +235,7 @@
 
 /datum/reagent/proc/reaction_mob(var/mob/target)
 	touch_mob(target)
+
+/// Called by [/datum/reagents/proc/conditional_update]
+/datum/reagent/proc/on_update(atom/A)
+	return