Merge branch 'hemanifolds' of https://github.com/duncathan/-tg-station into duncathan-hemanifolds

code/ATMOSPHERICS/pipes/heat_exchange/junction.dm

@@ -7,7 +7,6 @@
 
 	minimum_temperature_difference = 300
 	thermal_conductivity = WALL_HEAT_TRANSFER_COEFFICIENT
-	volume = 70
 
 	dir = SOUTH
 	initialize_directions = NORTH

code/ATMOSPHERICS/pipes/heat_exchange/manifold.dm

@@ -0,0 +1,60 @@
+//3-way manifold
+/obj/machinery/atmospherics/pipe/heat_exchanging/manifold
+	icon_state = "manifold"
+
+	name = "pipe manifold"
+	desc = "A manifold composed of regular pipes"
+
+	dir = SOUTH
+	initialize_directions_he = EAST|NORTH|WEST
+
+	device_type = TRINARY
+
+/obj/machinery/atmospherics/pipe/heat_exchanging/manifold/SetInitDirections()
+	switch(dir)
+		if(NORTH)
+			initialize_directions_he = EAST|SOUTH|WEST
+		if(SOUTH)
+			initialize_directions_he = WEST|NORTH|EAST
+		if(EAST)
+			initialize_directions_he = SOUTH|WEST|NORTH
+		if(WEST)
+			initialize_directions_he = NORTH|EAST|SOUTH
+
+/obj/machinery/atmospherics/pipe/heat_exchanging/manifold/update_icon()
+	var/invis = invisibility ? "-f" : ""
+
+	icon_state = "manifold_center[invis]"
+
+	overlays.Cut()
+
+	//Add non-broken pieces
+	for(DEVICE_TYPE_LOOP)
+		if(NODE_I)
+			overlays += getpipeimage('icons/obj/atmospherics/pipes/heat.dmi', "manifold_intact[invis]", get_dir(src, NODE_I))
+
+//4-way manifold
+/obj/machinery/atmospherics/pipe/heat_exchanging/manifold4w
+	icon_state = "manifold4w"
+
+	name = "4-way pipe manifold"
+	desc = "A manifold composed of heat-exchanging pipes"
+
+	initialize_directions_he = NORTH|SOUTH|EAST|WEST
+
+	device_type = QUATERNARY
+
+/obj/machinery/atmospherics/pipe/heat_exchanging/manifold4w/SetInitDirections()
+	initialize_directions_he = initial(initialize_directions_he)
+
+/obj/machinery/atmospherics/pipe/heat_exchanging/manifold4w/update_icon()
+	var/invis = invisibility ? "-f" : ""
+
+	icon_state = "manifold4w_center[invis]"
+
+	overlays.Cut()
+
+	//Add non-broken pieces
+	for(DEVICE_TYPE_LOOP)
+		if(NODE_I)
+			overlays += getpipeimage('icons/obj/atmospherics/pipes/heat.dmi', "manifold_intact[invis]", get_dir(src, NODE_I))

code/ATMOSPHERICS/pipes/heat_exchange/simple.dm

@@ -4,8 +4,6 @@
 	name = "pipe"
 	desc = "A one meter section of heat-exchanging pipe"
 
-	volume = 70
-
 	dir = SOUTH
 	initialize_directions_he = SOUTH|NORTH
 

code/ATMOSPHERICS/pipes/manifold.dm

@@ -8,8 +8,6 @@
 	name = "pipe manifold"
 	desc = "A manifold composed of regular pipes"
 
-	volume = 105
-
 	dir = SOUTH
 	initialize_directions = EAST|NORTH|WEST
 

code/ATMOSPHERICS/pipes/manifold4w.dm

@@ -8,8 +8,6 @@
 	name = "4-way pipe manifold"
 	desc = "A manifold composed of regular pipes"
 
-	volume = 140
-
 	initialize_directions = NORTH|SOUTH|EAST|WEST
 
 	device_type = QUATERNARY

code/ATMOSPHERICS/pipes/pipes.dm

@@ -16,6 +16,7 @@
 
 /obj/machinery/atmospherics/pipe/New()
 	color = pipe_color
+	volume = 35 * device_type
 	..()
 
 /obj/machinery/atmospherics/pipe/nullifyNode(I)

code/ATMOSPHERICS/pipes/simple.dm

@@ -10,8 +10,6 @@ The regular pipe you see everywhere, including bent ones.
 	name = "pipe"
 	desc = "A one meter section of regular pipe"
 
-	volume = 70
-
 	dir = SOUTH
 	initialize_directions = SOUTH|NORTH