Gas injectors are now buildable

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

@@ -169,7 +169,7 @@ Passive gate is similar to the regular pump except:
 /obj/machinery/atmospherics/components/binary/passive_gate/can_unwrench(mob/user)
 	if(..())
 		if(on)
-			to_chat(user, "<span class='warning'>You cannot unwrench this [src], turn it off first!</span>")
+			to_chat(user, "<span class='warning'>You cannot unwrench [src], turn it off first!</span>")
 		else
 			return 1
 

code/modules/atmospherics/machinery/components/binary_devices/pump.dm.rej

@@ -0,0 +1,10 @@
+diff a/code/modules/atmospherics/machinery/components/binary_devices/pump.dm b/code/modules/atmospherics/machinery/components/binary_devices/pump.dm	(rejected hunks)
+@@ -176,7 +176,7 @@ Thus, the two variables affect pump operation are set in New():
+ /obj/machinery/atmospherics/components/binary/pump/can_unwrench(mob/user)
+ 	if(..())
+ 		if(!(stat & NOPOWER) && on)
+-			to_chat(user, "<span class='warning'>You cannot unwrench this [src], turn it off first!</span>")
++			to_chat(user, "<span class='warning'>You cannot unwrench [src], turn it off first!</span>")
+ 		else
+ 			return 1
+ 

code/modules/atmospherics/machinery/components/binary_devices/volume_pump.dm.rej

@@ -0,0 +1,10 @@
+diff a/code/modules/atmospherics/machinery/components/binary_devices/volume_pump.dm b/code/modules/atmospherics/machinery/components/binary_devices/volume_pump.dm	(rejected hunks)
+@@ -172,7 +172,7 @@ Thus, the two variables affect pump operation are set in New():
+ /obj/machinery/atmospherics/components/binary/volume_pump/can_unwrench(mob/user)
+ 	if(..())
+ 		if(!(stat & NOPOWER) && on)
+-			to_chat(user, "<span class='warning'>You cannot unwrench this [src], turn it off first!</span>")
++			to_chat(user, "<span class='warning'>You cannot unwrench [src], turn it off first!</span>")
+ 		else
+ 			return 1
+ 

code/modules/atmospherics/machinery/components/unary_devices/outlet_injector.dm

@@ -1,9 +1,10 @@
 /obj/machinery/atmospherics/components/unary/outlet_injector
-	icon_state = "inje_map"
-	use_power = 1
-
 	name = "air injector"
 	desc = "Has a valve and pump attached to it"
+	icon_state = "inje_map"
+	use_power = 1
+	can_unwrench = TRUE
+	resistance_flags = FIRE_PROOF | UNACIDABLE | ACID_PROOF //really helpful in building gas chambers for xenomorphs
 
 	var/on = 0
 	var/injecting = 0
@@ -22,9 +23,13 @@
 	return ..()
 
 /obj/machinery/atmospherics/components/unary/outlet_injector/on
-	on = 1
+	on = TRUE
 
 /obj/machinery/atmospherics/components/unary/outlet_injector/update_icon_nopipes()
+	cut_overlays()
+	if(showpipe)
+		add_overlay(getpipeimage(icon, "inje_cap", initialize_directions))
+
 	if(!NODE1 || !on || stat & (NOPOWER|BROKEN))
 		icon_state = "inje_off"
 		return
@@ -42,7 +47,7 @@
 	..()
 	injecting = 0
 
-	if(!on || stat & NOPOWER)
+	if(!on || stat & (NOPOWER|BROKEN))
 		return 0
 
 	var/datum/gas_mixture/air_contents = AIR1
@@ -60,7 +65,7 @@
 	return 1
 
 /obj/machinery/atmospherics/components/unary/outlet_injector/proc/inject()
-	if(on || injecting)
+	if(on || injecting || stat & (NOPOWER|BROKEN))
 		return 0
 
 	var/datum/gas_mixture/air_contents = AIR1
@@ -139,3 +144,53 @@
 	spawn(2)
 		broadcast_status()
 	update_icon()
+
+
+/obj/machinery/atmospherics/components/unary/outlet_injector/ui_interact(mob/user, ui_key = "main", datum/tgui/ui = null, force_open = 0, \
+																		datum/tgui/master_ui = null, datum/ui_state/state = GLOB.default_state)
+	ui = SStgui.try_update_ui(user, src, ui_key, ui, force_open)
+	if(!ui)
+		ui = new(user, src, ui_key, "atmos_pump", name, 310, 115, master_ui, state)
+		ui.open()
+
+/obj/machinery/atmospherics/components/unary/outlet_injector/ui_data()
+	var/data = list()
+	data["on"] = on
+	data["rate"] = round(volume_rate)
+	data["max_rate"] = round(MAX_TRANSFER_RATE)
+	return data
+
+/obj/machinery/atmospherics/components/unary/outlet_injector/ui_act(action, params)
+	if(..())
+		return
+
+	switch(action)
+		if("power")
+			on = !on
+			investigate_log("was turned [on ? "on" : "off"] by [key_name(usr)]", "atmos")
+			. = TRUE
+		if("rate")
+			var/rate = params["rate"]
+			if(rate == "max")
+				rate = MAX_TRANSFER_RATE
+				. = TRUE
+			else if(rate == "input")
+				rate = input("New transfer rate (0-[MAX_TRANSFER_RATE] L/s):", name, volume_rate) as num|null
+				if(!isnull(rate) && !..())
+					. = TRUE
+			else if(text2num(rate) != null)
+				rate = text2num(rate)
+				. = TRUE
+			if(.)
+				volume_rate = Clamp(rate, 0, MAX_TRANSFER_RATE)
+				investigate_log("was set to [volume_rate] L/s by [key_name(usr)]", "atmos")
+	update_icon()
+	broadcast_status()
+
+/obj/machinery/atmospherics/components/unary/outlet_injector/can_unwrench(mob/user)
+	if(..())
+		if (!(stat & NOPOWER|BROKEN) && on)
+			to_chat(user, "<span class='warning'>You cannot unwrench [src], turn it off first!</span>")
+		else
+			return 1
+

code/modules/atmospherics/machinery/components/unary_devices/portables_connector.dm

@@ -30,7 +30,7 @@
 /obj/machinery/atmospherics/components/unary/portables_connector/can_unwrench(mob/user)
 	if(..())
 		if(connected_device)
-			to_chat(user, "<span class='warning'>You cannot unwrench this [src], detach [connected_device] first!</span>")
+			to_chat(user, "<span class='warning'>You cannot unwrench [src], detach [connected_device] first!</span>")
 		else
 			return 1
 

code/modules/atmospherics/machinery/components/unary_devices/unary_devices.dm

@@ -10,6 +10,9 @@
 /*
 Iconnery
 */
+/obj/machinery/atmospherics/components/unary/on_construction()
+	..()
+	update_icon()
 
 /obj/machinery/atmospherics/components/unary/hide(intact)
 	update_icon()

code/modules/atmospherics/machinery/components/unary_devices/vent_pump.dm

@@ -70,7 +70,7 @@
 /obj/machinery/atmospherics/components/unary/vent_pump/update_icon_nopipes()
 	cut_overlays()
 	if(showpipe)
-		add_overlay(getpipeimage('icons/obj/atmospherics/components/unary_devices.dmi', "vent_cap", initialize_directions))
+		add_overlay(getpipeimage(icon, "vent_cap", initialize_directions))
 
 	if(welded)
 		icon_state = "vent_welded"
@@ -268,7 +268,7 @@
 /obj/machinery/atmospherics/components/unary/vent_pump/can_unwrench(mob/user)
 	if(..())
 		if(!(stat & NOPOWER) && on)
-			to_chat(user, "<span class='warning'>You cannot unwrench this [src], turn it off first!</span>")
+			to_chat(user, "<span class='warning'>You cannot unwrench [src], turn it off first!</span>")
 		else
 			return 1
 

code/modules/atmospherics/machinery/components/unary_devices/vent_scrubber.dm

@@ -87,7 +87,7 @@
 /obj/machinery/atmospherics/components/unary/vent_scrubber/update_icon_nopipes()
 	cut_overlays()
 	if(showpipe)
-		add_overlay(getpipeimage('icons/obj/atmospherics/components/unary_devices.dmi', "scrub_cap", initialize_directions))
+		add_overlay(getpipeimage(icon, "scrub_cap", initialize_directions))
 
 	if(welded)
 		icon_state = "scrub_welded"
@@ -361,7 +361,7 @@
 /obj/machinery/atmospherics/components/unary/vent_scrubber/can_unwrench(mob/user)
 	if(..())
 		if (!(stat & NOPOWER) && on)
-			to_chat(user, "<span class='warning'>You cannot unwrench this [src], turn it off first!</span>")
+			to_chat(user, "<span class='warning'>You cannot unwrench [src], turn it off first!</span>")
 		else
 			return 1