Added construction drone sprites from Pawn.

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

@@ -281,7 +281,7 @@ emp_act
 		forcesay(hit_appends)	//forcesay checks stat already
 
 	//Melee weapon embedded object code.
-	if (I && I.damtype == BRUTE && !I.anchored && !I.is_robot_module())
+	if (I && I.damtype == BRUTE && !I.anchored && !is_robot_module(I))
 		var/damage = effective_force
 		if (armor)
 			damage /= armor+1
@@ -355,7 +355,7 @@ emp_act
 		//thrown weapon embedded object code.
 		if(dtype == BRUTE && istype(O,/obj/item))
 			var/obj/item/I = O
-			if (!I.is_robot_module())
+			if (!is_robot_module(I))
 				var/sharp = is_sharp(I)
 				var/damage = throw_damage
 				if (armor)

code/modules/mob/living/silicon/robot/drone/drone.dm

@@ -287,6 +287,7 @@
 	src.verbs -= silicon_subsystems
 
 /mob/living/silicon/robot/drone/construction
+	icon_state = "constructiondrone"
 	law_type = /datum/ai_laws/construction_drone
 	module_type = /obj/item/weapon/robot_module/drone/construction
 	can_pull_size = 5

code/modules/mob/living/silicon/robot/robot_modules.dm

@@ -726,10 +726,3 @@ var/global/list/robot_modules = list(
 	LR.Charge(R, amount)
 	..()
 	return
-
-//checks whether this item is a module of the robot it is located in.
-/obj/item/proc/is_robot_module()
-	if (!istype(src.loc, /mob/living/silicon/robot))
-		return 0
-	var/mob/living/silicon/robot/R = src.loc
-	return (src in R.module.modules)

code/modules/reagents/reagent_containers/food/snacks.dm

@@ -161,7 +161,7 @@
 		var/hide_item = !has_edge(W) || !can_slice_here
 
 		if (hide_item)
-			if (W.w_class >= src.w_class || W.is_robot_module())
+			if (W.w_class >= src.w_class || is_robot_module(W))
 				return
 
 			user << "\red You slip [W] inside [src]."