One-Way Materials Market (#5137)

## About The Pull Request

Re-enables purchase of the GMM, however the GMM can only be used to
purchase materials not sell them.

## Why It's Good For The Game

Let the station buy materials if they're desperate/lowpop. If people
were selling insane amounts of material inflating the budget, just
remove the ability to sell. Don't remove the entire machine.

## Changelog

🆑 LT3
add: Galactic materials market can be used by cargo for purchasing
materials only
/🆑

code/modules/cargo/materials_market.dm

@@ -50,6 +50,13 @@
 	if(!isstack(exportable))
 		return
 
+	// BUBBER EDIT ADDITION BEGIN - GMM can't sell materials
+	balloon_alert(user, "export not available!")
+	return ITEM_INTERACT_FAILURE
+	// BUBBER EDIT ADDITION END - GMM can't sell materials
+
+	// BUBBER EDIT REMOVAL BEGIN - GMM can't sell materials
+	/*
 	if(!is_operational)
 		balloon_alert(user, "no power!")
 		return ITEM_INTERACT_FAILURE
@@ -76,6 +83,8 @@
 	qdel(exportable)
 	use_energy(active_power_usage)
 	return ITEM_INTERACT_SUCCESS
+	*/
+	// BUBBER EDIT REMOVAL END - GMM can't sell materials
 
 /obj/machinery/materials_market/power_change()
 	. = ..()

code/modules/cargo/packs/imports.dm

@@ -315,8 +315,9 @@
 	order_flags = ORDER_CONTRABAND
 	contains = list(/obj/item/weaponcrafting/giant_wrench)
 	crate_name = "unknown parts crate"
+Removal End */
 
-/datum/supply_pack/imports/materials_market - RENABLE IF FIXED UPSTREAM
+/datum/supply_pack/imports/materials_market
 	name = "Galactic Materials Market Crate"
 	desc = "A circuit board to build your own materials market for use by certified market traders. Warning: Losses are not covered by insurance."
 	cost = CARGO_CRATE_VALUE * 3
@@ -329,7 +330,6 @@
 	)
 	crate_name = "materials market crate"
 	crate_type = /obj/structure/closet/crate/cargo
-Removal End */
 
 /datum/supply_pack/imports/floortilecamo
 	name = "Floor-tile Camouflage Uniform"