Re-introduce passive vents, mixer sprite fix

code/ATMOSPHERICS/components/unary_devices/passive_vent.dm

@@ -0,0 +1,36 @@
+/obj/machinery/atmospherics/unary/passive_vent
+	icon = 'icons/atmos/vent_pump.dmi'
+	icon_state = "map_vent"
+
+	name = "passive vent"
+	desc = "A large air vent"
+
+	can_unwrench = 1
+	
+	var/volume = 250
+
+/obj/machinery/atmospherics/unary/passive_vent/high_volume
+	name = "large passive vent"
+	volume = 1000
+	
+/obj/machinery/atmospherics/unary/passive_vent/New()
+	..()
+	air_contents.volume = volume
+
+/obj/machinery/atmospherics/unary/passive_vent/process()
+	..()
+	
+	if(!node)
+		return
+
+	var/datum/gas_mixture/removed = air_contents.remove(volume)
+	loc.assume_air(removed)	
+	air_update_turf()
+
+/obj/machinery/atmospherics/unary/passive_vent/update_underlays()
+	if(..())
+		underlays.Cut()
+		var/turf/T = get_turf(src)
+		if(!istype(T))
+			return
+		add_underlay(T, node, dir)

code/game/machinery/pipe/construction.dm

@@ -35,7 +35,8 @@
 #define PIPE_INJECTOR    			34
 #define PIPE_DVALVE           	 	35
 #define PIPE_DP_VENT    			36
-#define PIPE_DTVALVE				37
+#define PIPE_PASV_VENT				37
+#define PIPE_DTVALVE				38
 
 /obj/item/pipe
 	name = "pipe"
@@ -142,6 +143,8 @@
 			src.pipe_type = PIPE_INJECTOR
 		else if(istype(make_from, /obj/machinery/atmospherics/binary/dp_vent_pump))
 			src.pipe_type = PIPE_DP_VENT
+		else if(istype(make_from, /obj/machinery/atmospherics/unary/passive_vent))
+			src.pipe_type = PIPE_PASV_VENT
 
 		else if(istype(make_from, /obj/machinery/atmospherics/omni/mixer))
 			src.pipe_type = PIPE_OMNI_MIXER
@@ -344,7 +347,7 @@
 			return dir|flip
 		if(PIPE_SIMPLE_BENT, PIPE_INSULATED_BENT, PIPE_HE_BENT, PIPE_SUPPLY_BENT, PIPE_SCRUBBERS_BENT)
 			return dir //dir|acw
-		if(PIPE_CONNECTOR, PIPE_UVENT, PIPE_SCRUBBER, PIPE_HEAT_EXCHANGE, PIPE_INJECTOR)
+		if(PIPE_CONNECTOR, PIPE_UVENT, PIPE_PASV_VENT, PIPE_SCRUBBER, PIPE_HEAT_EXCHANGE, PIPE_INJECTOR)
 			return dir
 		if(PIPE_MANIFOLD4W, PIPE_SUPPLY_MANIFOLD4W, PIPE_SCRUBBERS_MANIFOLD4W, PIPE_OMNI_MIXER, PIPE_OMNI_FILTER)
 			return dir|flip|cw|acw
@@ -428,8 +431,6 @@
 			user << "<span class='warning'>There is already a pipe of the same type at this location.</span>"
 			return 1
 
-	var/obj/machinery/atmospherics/machineReference = null //If somebody wants to overhaul that switch statement below, be my guest. Easier to set a reference here and then transfer logs after the switch statement.
-
 	switch(pipe_type) //What kind of heartless person thought of doing this?
 		if(PIPE_SIMPLE_STRAIGHT, PIPE_SIMPLE_BENT)
 			var/obj/machinery/atmospherics/pipe/simple/P = new( src.loc )
@@ -574,6 +575,12 @@
 			if (pipename)
 				P.name = pipename
 			P.construction(dir, pipe_dir, color)
+			
+		if(PIPE_PASV_VENT)
+			var/obj/machinery/atmospherics/unary/passive_vent/P  = new(src.loc)
+			if (pipename)
+				P.name = pipename
+			P.construction(dir, pipe_dir, color)
 
 		if(PIPE_OMNI_MIXER)
 			var/obj/machinery/atmospherics/omni/mixer/P = new(loc)
@@ -588,9 +595,6 @@
 		"[user] fastens the [src].", \
 		"\blue You have fastened the [src].", \
 		"You hear ratchet.")
-	if(machineReference)
-		transfer_fingerprints_to(machineReference)
-		machineReference.add_fingerprint(user)
 	qdel(src)	// remove the pipe item
 
 	return
@@ -670,4 +674,5 @@
 #undef PIPE_INJECTOR
 #undef PIPE_DVALVE
 #undef PIPE_DP_VENT
+#undef PIPE_PASV_VENT
 #undef PIPE_DTVALVE

code/game/machinery/pipe/pipe_dispenser.dm

@@ -20,7 +20,7 @@
 <A href='?src=\ref[src];make=20;dir=1'>Pipe Cap</A><BR>
 <A href='?src=\ref[src];make=19;dir=1'>4-Way Manifold</A><BR>
 <A href='?src=\ref[src];make=18;dir=1'>Manual T-Valve</A><BR>
-<A href='?src=\ref[src];make=37;dir=1'>Digital T-Valve</A><BR>
+<A href='?src=\ref[src];make=38;dir=1'>Digital T-Valve</A><BR>
 <b>Supply pipes:</b><BR>
 <A href='?src=\ref[src];make=24;dir=1'>Pipe</A><BR>
 <A href='?src=\ref[src];make=25;dir=5'>Bent Pipe</A><BR>
@@ -47,6 +47,7 @@
 <A href='?src=\ref[src];make=14;dir=1'>Gas Mixer</A><BR>
 <A href='?src=\ref[src];make=34;dir=1'>Air Injector</A><BR>
 <A href='?src=\ref[src];make=36;dir=1'>Dual-Port Vent Pump</A><BR>
+<A href='?src=\ref[src];make=37;dir=1'>Passive Vent</A><BR>
 <b>Heat exchange:</b><BR>
 <A href='?src=\ref[src];make=2;dir=1'>Pipe</A><BR>
 <A href='?src=\ref[src];make=3;dir=5'>Bent Pipe</A><BR>

paradise.dme

@@ -121,6 +121,7 @@
 #include "code\ATMOSPHERICS\components\unary_devices\heat_source.dm"
 #include "code\ATMOSPHERICS\components\unary_devices\outlet_injector.dm"
 #include "code\ATMOSPHERICS\components\unary_devices\oxygen_generator.dm"
+#include "code\ATMOSPHERICS\components\unary_devices\passive_vent.dm"
 #include "code\ATMOSPHERICS\components\unary_devices\portables_connector.dm"
 #include "code\ATMOSPHERICS\components\unary_devices\tank.dm"
 #include "code\ATMOSPHERICS\components\unary_devices\thermal_plate.dm"