Adds H/E Manifolds (#14717)

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* Balances heat transfer

Not efficient to build 5 manifolds on every tile, makes you utilize pipes.

* Whoops

Forgot the 4-way

code/ATMOSPHERICS/he_pipes.dm

@@ -9,7 +9,7 @@
 	minimum_temperature_difference = 20
 	thermal_conductivity = OPEN_HEAT_TRANSFER_COEFFICIENT
 
-	var/const/RADIATION_CAPACITY = 32000 // Radiation isn't particularly effective (TODO BALANCE)
+	var/RADIATION_CAPACITY = 32000       // Radiation isn't particularly effective (TODO BALANCE)
 	                                     //  Plate value is 30000, increased it a bit because of additional surface area. - N3X
 	var/const/ENERGY_MULT        = 6.4   // Not sure what this is, keeping it the same as plates.
 
@@ -209,3 +209,106 @@
 /obj/machinery/atmospherics/pipe/simple/heat_exchanging/junction/hidden
 	level=1
 	icon_state="intact-f"
+
+/////////////////////////////////
+// Manifold
+/////////////////////////////////
+/obj/machinery/atmospherics/pipe/simple/heat_exchanging/he_manifold
+	icon = 'icons/obj/pipe-item.dmi'
+	icon_state = "he_manifold"
+	var/obj/machinery/atmospherics/node3
+	RADIATION_CAPACITY = 24000
+
+/obj/machinery/atmospherics/pipe/simple/heat_exchanging/he_manifold/New()
+	.. ()
+	switch(dir)
+		if(NORTH)
+			initialize_directions_he = EAST|SOUTH|WEST
+		if(SOUTH)
+			initialize_directions_he = NORTH|EAST|WEST
+		if(EAST)
+			initialize_directions_he = NORTH|SOUTH|WEST
+		if(WEST)
+			initialize_directions_he = NORTH|EAST|SOUTH
+
+/obj/machinery/atmospherics/pipe/simple/heat_exchanging/he_manifold/buildFrom(var/mob/usr,var/obj/item/pipe/pipe)
+	dir = pipe.dir
+	initialize_directions_he = pipe.get_hdir()
+	initialize(1)
+	if (!node1 && !node2 && !node3)
+		to_chat(usr, "There's nothing to connect this manifold to!")
+		return 0
+	build_network()
+	if (node1)
+		node1.initialize()
+		node1.build_network()
+	if (node2)
+		node2.initialize()
+		node2.build_network()
+	if (node3)
+		node3.initialize()
+		node3.build_network()
+	return 1
+
+/obj/machinery/atmospherics/pipe/simple/heat_exchanging/he_manifold/update_icon()
+	if(!node1&&!node2&&!node3)
+		qdel(src)
+
+/obj/machinery/atmospherics/pipe/simple/heat_exchanging/he_manifold/pipeline_expansion()
+	return list(node1, node2, node3)
+
+/obj/machinery/atmospherics/pipe/simple/heat_exchanging/he_manifold/initialize(var/suppress_icon_check=0)
+	findAllConnections(initialize_directions_he)
+
+	if(!suppress_icon_check)
+		update_icon()
+
+/////////////////////////////////
+// 4-Way Manifold
+/////////////////////////////////
+/obj/machinery/atmospherics/pipe/simple/heat_exchanging/he_manifold4w
+	icon = 'icons/obj/pipe-item.dmi'
+	icon_state = "he_manifold4w"
+	var/obj/machinery/atmospherics/node3
+	var/obj/machinery/atmospherics/node4
+	RADIATION_CAPACITY = 24000
+
+/obj/machinery/atmospherics/pipe/simple/heat_exchanging/he_manifold4w/New()
+	.. ()
+	initialize_directions_he = NORTH|SOUTH|EAST|WEST
+
+/obj/machinery/atmospherics/pipe/simple/heat_exchanging/he_manifold4w/buildFrom(var/mob/usr,var/obj/item/pipe/pipe)
+	dir = pipe.dir
+	initialize_directions_he = pipe.get_hdir()
+	initialize(1)
+	if (!node1 && !node2 && !node3 && !node4)
+		to_chat(usr, "There's nothing to connect this manifold to!")
+		return 0
+	build_network()
+	if (node1)
+		node1.initialize()
+		node1.build_network()
+	if (node2)
+		node2.initialize()
+		node2.build_network()
+	if (node3)
+		node3.initialize()
+		node3.build_network()
+	if (node4)
+		node4.initialize()
+		node4.build_network()
+	return 1
+
+/obj/machinery/atmospherics/pipe/simple/heat_exchanging/he_manifold4w/update_icon()
+	if(!node1&&!node2&&!node3&&!node4)
+		qdel(src)
+
+/obj/machinery/atmospherics/pipe/simple/heat_exchanging/he_manifold4w/pipeline_expansion()
+	return list(node1, node2, node3, node4)
+
+
+/obj/machinery/atmospherics/pipe/simple/heat_exchanging/he_manifold4w/initialize(var/suppress_icon_check=0)
+	findAllConnections(initialize_directions_he)
+
+	if(!suppress_icon_check)
+		update_icon()

code/ATMOSPHERICS/pipe/construction.dm

@@ -35,6 +35,8 @@ Buildable meters
 #define PIPE_INSUL_MANIFOLD4W	28
 #define PIPE_LAYER_MANIFOLD		29
 #define PIPE_LAYER_ADAPTER      30
+#define PIPE_HE_MANIFOLD		31
+#define PIPE_HE_MANIFOLD4W      32
 
 //Disposal piping numbers - do NOT hardcode these, use the defines
 #define DISP_PIPE_STRAIGHT		0
@@ -49,7 +51,7 @@ Buildable meters
 #define DISP_SORT_WRAP_JUNCTION	9
 
 var/global/list/unstackable_pipes = list(PIPE_LAYER_MANIFOLD)
-var/global/list/heat_pipes = list(PIPE_HE_STRAIGHT, PIPE_HE_BENT, PIPE_JUNCTION)
+var/global/list/heat_pipes = list(PIPE_HE_STRAIGHT, PIPE_HE_BENT, PIPE_JUNCTION, PIPE_HE_MANIFOLD, PIPE_HE_MANIFOLD4W)
 
 /obj/item/pipe_spawner
 	name = "Pipe Spawner"
@@ -129,6 +131,10 @@ var/list/bent_dirs = list(NORTH|SOUTH, WEST|EAST)
 			is_bent = 1
 		if     (istype(make_from, /obj/machinery/atmospherics/pipe/simple/heat_exchanging/junction))
 			src.pipe_type = PIPE_JUNCTION
+		else if(istype(make_from, /obj/machinery/atmospherics/pipe/simple/heat_exchanging/he_manifold4w))
+			src.pipe_type = PIPE_HE_MANIFOLD4W
+		else if(istype(make_from, /obj/machinery/atmospherics/pipe/simple/heat_exchanging/he_manifold))
+			src.pipe_type = PIPE_HE_MANIFOLD
 		else if(istype(make_from, /obj/machinery/atmospherics/pipe/simple/heat_exchanging))
 			src.pipe_type = PIPE_HE_STRAIGHT + is_bent
 		else if(istype(make_from, /obj/machinery/atmospherics/pipe/simple/insulated))
@@ -243,6 +249,8 @@ var/global/list/pipeID2State = list(
 	"insulated_manifold4w",
 	"manifoldlayer",
 	"layeradapter",
+	"he_manifold",
+	"he_manifold4w",
 )
 var/global/list/nlist = list( \
 	"pipe", \
@@ -276,6 +284,8 @@ var/global/list/nlist = list( \
 	"insulated 4-way manifold", \
 	"pipe alignment converter", \
 	"pipe alignment adapter",
+	"h/e manifold", \
+	"h/e 4-way manifold", \
 )
 /obj/item/pipe/proc/update()
 
@@ -294,7 +304,7 @@ var/global/list/nlist = list( \
 // rotate the pipe item clockwise
 var/list/straight_pipes = list(PIPE_SIMPLE_STRAIGHT, PIPE_HE_STRAIGHT, PIPE_INSULATED_STRAIGHT, PIPE_MVALVE, PIPE_DVALVE)
 var/list/bent_pipes = list(PIPE_SIMPLE_BENT, PIPE_HE_BENT, PIPE_INSULATED_BENT)
-var/list/manifold_pipes = list(PIPE_MANIFOLD4W, PIPE_INSUL_MANIFOLD4W)
+var/list/manifold_pipes = list(PIPE_MANIFOLD4W, PIPE_INSUL_MANIFOLD4W, PIPE_HE_MANIFOLD4W)
 /obj/item/pipe/verb/rotate()
 	set category = "Object"
 	set name = "Rotate Pipe"
@@ -349,9 +359,9 @@ var/list/manifold_pipes = list(PIPE_MANIFOLD4W, PIPE_INSUL_MANIFOLD4W)
 			return dir //dir|acw
 		if(PIPE_CONNECTOR,PIPE_UVENT,PIPE_PASV_VENT,PIPE_SCRUBBER,PIPE_HEAT_EXCHANGE,PIPE_THERMAL_PLATE,PIPE_INJECTOR)
 			return dir
-		if(PIPE_MANIFOLD4W, PIPE_INSUL_MANIFOLD4W)
+		if(PIPE_MANIFOLD4W, PIPE_INSUL_MANIFOLD4W, PIPE_HE_MANIFOLD4W)
 			return dir|flip|cw|acw
-		if(PIPE_MANIFOLD, PIPE_INSUL_MANIFOLD)
+		if(PIPE_MANIFOLD, PIPE_INSUL_MANIFOLD, PIPE_HE_MANIFOLD)
 			return flip|cw|acw
 		if(PIPE_GAS_FILTER, PIPE_GAS_MIXER,PIPE_MTVALVE,PIPE_DTVALVE)
 			return dir|flip|cw
@@ -387,6 +397,10 @@ var/list/manifold_pipes = list(PIPE_MANIFOLD4W, PIPE_INSUL_MANIFOLD4W)
 			return get_pipe_dir()
 		if(PIPE_HE_BENT)
 			return get_pipe_dir()
+		if (PIPE_HE_MANIFOLD)
+			return get_pipe_dir()
+		if (PIPE_HE_MANIFOLD4W)
+			return get_pipe_dir()
 		if(PIPE_JUNCTION)
 			return dir
 		else
@@ -425,6 +439,12 @@ var/list/manifold_pipes = list(PIPE_MANIFOLD4W, PIPE_INSUL_MANIFOLD4W)
 		if(PIPE_HE_STRAIGHT, PIPE_HE_BENT)
 			P=new/obj/machinery/atmospherics/pipe/simple/heat_exchanging(loc)
 
+		if(PIPE_HE_MANIFOLD4W)
+			P=new/obj/machinery/atmospherics/pipe/simple/heat_exchanging/he_manifold4w( src.loc )
+
+		if(PIPE_HE_MANIFOLD)
+			P=new/obj/machinery/atmospherics/pipe/simple/heat_exchanging/he_manifold( src.loc )
+
 		if(PIPE_CONNECTOR)		// connector
 			P=new/obj/machinery/atmospherics/unary/portables_connector(loc)
 

code/modules/RCD/RPD.dm

@@ -46,6 +46,8 @@
 		/datum/rcd_schematic/pipe/he_bent,
 		/datum/rcd_schematic/pipe/juntion,
 		/datum/rcd_schematic/pipe/heat_exchanger,
+		/datum/rcd_schematic/pipe/he_manifold,
+		/datum/rcd_schematic/pipe/he_manifold4w,
 
 		/* Insulated Pipes */
 		/datum/rcd_schematic/pipe/insulated,

code/modules/RCD/schematics/pipe.dm

@@ -654,6 +654,20 @@ var/global/list/disposalpipeID2State = list(
 	pipe_id		= PIPE_HEAT_EXCHANGE
 	pipe_type	= PIPE_UNARY
 
+/datum/rcd_schematic/pipe/he_manifold
+	name		= "Manifold"
+	category	= "Heat Exchange"
+
+	pipe_id		= PIPE_HE_MANIFOLD
+	pipe_type	= PIPE_TRINARY
+
+/datum/rcd_schematic/pipe/he_manifold4w
+	name		= "4-Way Manifold"
+	category	= "Heat Exchange"
+
+	pipe_id		= PIPE_HE_MANIFOLD4W
+	pipe_type	= PIPE_BINARY
+
 //INSULATED PIPES.
 
 /datum/rcd_schematic/pipe/insulated