Arcmining: Chemical Boosting (#95530)

code/datums/components/plumbing/_plumbing.dm

@@ -20,6 +20,11 @@
 	/// Ex - if this was set to "3", our component would only request the first 3 reagents found, even if more are available
 	var/distinct_reagent_cap = INFINITY
 
+	///Extra offset on supply pipe.
+	var/supply_offset = 0
+	///Extra offset on demand pipe.
+	var/demand_offset = 0
+
 /datum/component/plumbing/Initialize(ducting_layer)
 	if(!ismovable(parent))
 		return COMPONENT_INCOMPATIBLE
@@ -168,9 +173,7 @@
 	if(tile_covered)
 		return
 
-	//Copied from ducts handle_layer()
 	var/offset
-
 	switch(ducting_layer)
 		if(FIRST_DUCT_LAYER)
 			offset = -10
@@ -183,16 +186,36 @@
 		if(FIFTH_DUCT_LAYER)
 			offset = 10
 
-	var/duct_x = offset - parent_movable.pixel_x - parent_movable.pixel_w
-	var/duct_y = offset - parent_movable.pixel_y - parent_movable.pixel_z
 	var/duct_layer = PLUMBING_PIPE_VISIBILE_LAYER + ducting_layer * 0.0003
 
 	for(var/direction in GLOB.cardinals)
 		var/color
+		var/duct_x = offset - parent_movable.pixel_x - parent_movable.pixel_w
+		var/duct_y = offset - parent_movable.pixel_y - parent_movable.pixel_z
 		if(direction & initial(demand_connects))
 			color = demand_color
+			if(demand_offset)
+				switch(parent_movable.dir)
+					if(NORTH)
+						duct_y -= demand_offset
+					if(SOUTH)
+						duct_y += demand_offset
+					if(EAST)
+						duct_x -= demand_offset
+					if(WEST)
+						duct_x += demand_offset
 		else if(direction & initial(supply_connects))
 			color = supply_color
+			if(supply_offset)
+				switch(parent_movable.dir)
+					if(NORTH)
+						duct_y += supply_offset
+					if(SOUTH)
+						duct_y -= supply_offset
+					if(EAST)
+						duct_x += supply_offset
+					if(WEST)
+						duct_x -= supply_offset
 		else
 			continue
 
@@ -218,6 +241,7 @@
 				new_supply_connects |= turn(direction, angle)
 		demand_connects = new_demand_connects
 		supply_connects = new_supply_connects
+	parent_obj.update_appearance(UPDATE_OVERLAYS)
 
 	if(length(ducts))
 		disable()

code/datums/components/plumbing/boulder_reactions.dm

@@ -0,0 +1,30 @@
+/**
+ * The boulder machines take in many types of chems, but should only ever eject "waste" chems,
+ */
+/datum/component/plumbing/boulder_reactions
+	demand_connects = NORTH
+	supply_connects = SOUTH
+	supply_offset = 4
+	demand_offset = 4
+
+/datum/component/plumbing/boulder_reactions/Initialize(ducting_layer)
+	if(!istype(parent, /obj/machinery/bouldertech/refinery))
+		return COMPONENT_INCOMPATIBLE
+	return ..()
+
+/datum/component/plumbing/boulder_reactions/can_give(amount, reagent, datum/ductnet/net)
+	if(amount <= 0 || !reagents.total_volume || !reagent)
+		return FALSE
+
+	var/obj/machinery/bouldertech/refinery/the_refinery = parent
+	var/list/datum/reagents/boosters = the_refinery.booster_list
+
+	if(istype(amount, the_refinery.waste_chemical))
+		return TRUE //Always allow waste chemicals to leave.
+
+	if(!length(boosters))
+		return ..()
+	for(var/datum/chem as anything in boosters)
+		if(chem.type == reagent) // Need to check strict subtype since most acids are subtypes of eachother.
+			return FALSE
+	return ..()