deconstructable-TEG (#38656)

Make TEG deconstructable.

code/modules/atmospherics/machinery/components/binary_devices/circulator.dm

@@ -1,23 +1,41 @@
 //node2, air2, network2 correspond to input
 //node1, air1, network1 correspond to output
-
+#define CIRCULATOR_COLD 0
+#define CIRCULATOR_HOT 1
 
 /obj/machinery/atmospherics/components/binary/circulator
 	name = "circulator/heat exchanger"
 	desc = "A gas circulator pump and heat exchanger."
-	icon_state = "circ1-off"
+	icon_state = "circ-off"
 
-	var/side = CIRC_LEFT
-	var/status = 0
+	var/active = FALSE
 
 	var/last_pressure_delta = 0
-	pipe_flags = PIPING_ONE_PER_TURF
+	pipe_flags = PIPING_ONE_PER_TURF | PIPING_DEFAULT_LAYER_ONLY
 
 	density = TRUE
 
-	var/global/const/CIRC_LEFT = 1
-	var/global/const/CIRC_RIGHT = 2
 
+	var/flipped = 0
+	var/mode = CIRCULATOR_HOT
+	var/obj/machinery/power/generator/generator
+
+//default cold circ for mappers
+/obj/machinery/atmospherics/components/binary/circulator/cold
+	mode = CIRCULATOR_COLD
+
+/obj/machinery/atmospherics/components/binary/circulator/Initialize(mapload)
+	.=..()
+	component_parts = list(new /obj/item/circuitboard/machine/circulator)
+
+/obj/machinery/atmospherics/components/binary/circulator/ComponentInitialize()
+	. = ..()
+	AddComponent(/datum/component/simple_rotation,ROTATION_ALTCLICK | ROTATION_CLOCKWISE | ROTATION_COUNTERCLOCKWISE | ROTATION_VERBS )
+
+/obj/machinery/atmospherics/components/binary/circulator/Destroy()
+	if(generator)
+		disconnectFromGenerator()
+	return ..()
 
 /obj/machinery/atmospherics/components/binary/circulator/proc/return_transfer_air()
 
@@ -56,11 +74,115 @@
 
 /obj/machinery/atmospherics/components/binary/circulator/update_icon()
 	if(!is_operational())
-		icon_state = "circ[side]-p"
+		icon_state = "circ-p-[flipped]"
 	else if(last_pressure_delta > 0)
 		if(last_pressure_delta > ONE_ATMOSPHERE)
-			icon_state = "circ[side]-run"
+			icon_state = "circ-run-[flipped]"
 		else
-			icon_state = "circ[side]-slow"
+			icon_state = "circ-slow-[flipped]"
 	else
-		icon_state = "circ[side]-off"
+		icon_state = "circ-off-[flipped]"
+
+/obj/machinery/atmospherics/components/binary/circulator/wrench_act(mob/living/user, obj/item/I)
+	if(!panel_open)
+		return
+	anchored = !anchored
+	I.play_tool_sound(src)
+	if(generator)
+		disconnectFromGenerator()
+	to_chat(user, "<span class='notice'>You [anchored?"secure":"unsecure"] [src].</span>")
+
+
+	var/obj/machinery/atmospherics/node1 = nodes[1]
+	var/obj/machinery/atmospherics/node2 = nodes[2]
+
+	if(node1)
+		node1.disconnect(src)
+		nodes[1] = null
+		nullifyPipenet(parents[1])
+	if(node2)
+		node2.disconnect(src)
+		nodes[2] = null
+		nullifyPipenet(parents[2])
+
+	if(anchored)
+		SetInitDirections()
+		atmosinit()
+		node1 = nodes[1]
+		if(node1)
+			node1.atmosinit()
+			node1.addMember(src)
+		node2 = nodes[2]
+		if(node2)
+			node2.atmosinit()
+			node2.addMember(src)
+		build_network()
+
+	return TRUE
+
+/obj/machinery/atmospherics/components/binary/circulator/SetInitDirections()
+	switch(dir)
+		if(NORTH, SOUTH)
+			initialize_directions = EAST|WEST
+		if(EAST, WEST)
+			initialize_directions = NORTH|SOUTH
+
+/obj/machinery/atmospherics/components/binary/circulator/getNodeConnects()
+	if(flipped)
+		return list(turn(dir, 270), turn(dir, 90))
+	return list(turn(dir, 90), turn(dir, 270))
+
+/obj/machinery/atmospherics/components/binary/circulator/can_be_node(obj/machinery/atmospherics/target)
+	if(anchored)
+		return ..(target)
+	return FALSE
+
+/obj/machinery/atmospherics/components/binary/circulator/multitool_act(mob/living/user, obj/item/I)
+	if(generator)
+		disconnectFromGenerator()
+	mode = !mode
+	to_chat(user, "<span class='notice'>You set [src] to [mode?"cold":"hot"] mode.</span>")
+	return TRUE
+
+/obj/machinery/atmospherics/components/binary/circulator/screwdriver_act(mob/user, obj/item/I)
+	panel_open = !panel_open
+	I.play_tool_sound(src)
+	to_chat(user, "<span class='notice'>You [panel_open?"open":"close"] the panel on [src].</span>")
+	return TRUE
+
+/obj/machinery/atmospherics/components/binary/circulator/crowbar_act(mob/user, obj/item/I)
+	default_deconstruction_crowbar(I)
+	return TRUE
+
+/obj/machinery/atmospherics/components/binary/circulator/on_deconstruction()
+	if(generator)
+		disconnectFromGenerator()
+
+/obj/machinery/atmospherics/components/binary/circulator/proc/disconnectFromGenerator()
+	if(mode)
+		generator.cold_circ = null
+	else
+		generator.hot_circ = null
+	generator.update_icon()
+	generator = null
+
+/obj/machinery/atmospherics/components/binary/circulator/setPipingLayer(new_layer)
+	..()
+	pixel_x = 0
+	pixel_y = 0
+
+/obj/machinery/atmospherics/components/binary/circulator/verb/circulator_flip()
+	set name = "Flip"
+	set category = "Object"
+	set src in oview(1)
+
+	if(!ishuman(usr))
+		return
+
+	if(anchored)
+		to_chat(usr, "<span class='danger'>[src] is anchored!</span>")
+		return
+
+	flipped = !flipped
+	to_chat(usr, "<span class='notice'>You flip [src].</span>")
+	update_icon()