Changes obj/effect/blob,spider,swarmer,energy_net,spacevines to be ob/structures instead, since you can hit and destroy them.

Adds a large ash and large molten item decal (for future use)
simplifies decal/cleanable/replace_decal() code a bit.
Changes construction() proc to on_construction() for consistency, same for deconstruction().
Made a deconstruct() proc for machinery and computer (also for future use).

code/modules/research/circuitprinter.dm

@@ -62,7 +62,7 @@ using metal and glass, it uses glass and reagents (usually sulfuric acis).
 		T += M.rating
 	efficiency_coeff = 2 ** (T - 1) //Only 1 manipulator here, you're making runtimes Razharas
 
-/obj/machinery/r_n_d/circuit_imprinter/blob_act(obj/effect/blob/B)
+/obj/machinery/r_n_d/circuit_imprinter/blob_act(obj/structure/blob/B)
 	if (prob(50))
 		qdel(src)
 
@@ -76,7 +76,7 @@ using metal and glass, it uses glass and reagents (usually sulfuric acis).
 	return round(A / max(1, (all_materials[M]/efficiency_coeff)))
 
 //we eject the materials upon deconstruction.
-/obj/machinery/r_n_d/circuit_imprinter/deconstruction()
+/obj/machinery/r_n_d/circuit_imprinter/on_deconstruction()
 	for(var/obj/item/weapon/reagent_containers/glass/G in component_parts)
 		reagents.trans_to(G, G.reagents.maximum_volume)
 	materials.retrieve_all()

code/modules/research/protolathe.dm

@@ -76,7 +76,7 @@ Note: Must be placed west/left of and R&D console to function.
 	return round(A / max(1, (all_materials[M]*efficiency_coeff)))
 
 //we eject the materials upon deconstruction.
-/obj/machinery/r_n_d/protolathe/deconstruction()
+/obj/machinery/r_n_d/protolathe/on_deconstruction()
 	for(var/obj/item/weapon/reagent_containers/glass/G in component_parts)
 		reagents.trans_to(G, G.reagents.maximum_volume)
 	materials.retrieve_all()

code/modules/research/rdconsole.dm

@@ -138,7 +138,7 @@ won't update every console in existence) but it's more of a hassle to do. Also,
 	updateUsrDialog()
 
 
-/obj/machinery/computer/rdconsole/deconstruction()
+/obj/machinery/computer/rdconsole/on_deconstruction()
 	if(linked_destroy)
 		linked_destroy.linked_console = null
 		linked_destroy = null

code/modules/research/rdmachines.dm

@@ -105,7 +105,7 @@
 
 
 //we eject the loaded item when deconstructing the machine
-/obj/machinery/r_n_d/deconstruction()
+/obj/machinery/r_n_d/on_deconstruction()
 	if(loaded_item)
 		loaded_item.loc = loc
 	..()

code/modules/research/server.dm

@@ -90,7 +90,7 @@
 	..()
 
 
-/obj/machinery/r_n_d/server/blob_act(obj/effect/blob/B)
+/obj/machinery/r_n_d/server/blob_act(obj/structure/blob/B)
 	griefProtection()
 	..()
 
@@ -129,7 +129,7 @@
 				air_update_turf()
 
 //called when the server is deconstructed.
-/obj/machinery/r_n_d/server/deconstruction()
+/obj/machinery/r_n_d/server/on_deconstruction()
 	griefProtection()
 	..()