Merge pull request #194 from Azarak/holofan2

ATMOS holofans and forcefield generator icon update, temperature block for holofans and force gens going into toolbelts

code/modules/atmospherics/environmental/LINDA_turf_tile.dm

@@ -357,6 +357,9 @@
 	SSair.excited_groups -= src
 
 ////////////////////////SUPERCONDUCTIVITY/////////////////////////////
+/atom/movable/proc/blocksTemperature()
+	return FALSE
+
 /turf/proc/conductivity_directions()
 	if(archived_cycle < SSair.times_fired)
 		archive()
@@ -371,6 +374,9 @@
 			. |= direction
 
 /turf/proc/neighbor_conduct_with_src(turf/open/other)
+	for (var/atom/movable/G in src)
+		if (G.blocksTemperature())
+			return
 	if(!other.blocks_air) //Open but neighbor is solid
 		other.temperature_share_open_to_solid(src)
 	else //Both tiles are solid
@@ -382,6 +388,10 @@
 		..()
 		return
 
+	
+	for (var/atom/movable/G in src)
+		if (G.blocksTemperature())
+			return
 	if(!other.blocks_air) //Both tiles are open
 		var/turf/open/T = other
 		T.air.temperature_share(air, WINDOW_HEAT_TRANSFER_COEFFICIENT)