Defers pipenet and powernet rebuilds upon destruction of pipes and cables so explosions are faster

code/controllers/Processes/machinery.dm

@@ -8,7 +8,7 @@
 /datum/controller/process/machinery/statProcess()
 	..()
 	stat(null, "[machines.len] machines")
-	stat(null, "[powernets.len] powernets")
+	stat(null, "[powernets.len] powernets, [deferred_powernet_rebuilds.len] deferred")
 
 /datum/controller/process/machinery/doWork()
 	process_sort()
@@ -41,6 +41,19 @@
 		SCHECK_EVERY(100)
 
 /datum/controller/process/machinery/proc/process_power()
+	for(last_object in deferred_powernet_rebuilds)
+		var/obj/O = last_object
+		if(istype(O) && isnull(O.gcDestroyed))
+			try
+				var/datum/powernet/newPN = new()// creates a new powernet...
+				propagate_network(O, newPN)//... and propagates it to the other side of the cable
+			catch(var/exception/e)
+				catchException(e, O)
+			SCHECK
+		else
+			catchBadType(O)
+		deferred_powernet_rebuilds -= O
+
 	for(last_object in powernets)
 		var/datum/powernet/powerNetwork = last_object
 		if(istype(powerNetwork) && isnull(powerNetwork.gcDestroyed))
@@ -49,9 +62,9 @@
 			catch(var/exception/e)
 				catchException(e, powerNetwork)
 			SCHECK
-			continue
-
-		powernets.Remove(powerNetwork)
+		else
+			catchBadType(powerNetwork)
+			powernets -= powerNetwork
 
 /datum/controller/process/machinery/proc/process_power_drain()
 	// Currently only used by powersinks. These items get priority processed before machinery

code/controllers/Processes/pipenet.dm

@@ -5,9 +5,21 @@
 
 /datum/controller/process/pipenet/statProcess()
 	..()
-	stat(null, "[pipe_networks.len] pipe nets")
+	stat(null, "[pipe_networks.len] pipe nets, [deferred_pipenet_rebuilds.len] deferred")
 
 /datum/controller/process/pipenet/doWork()
+	for(last_object in deferred_pipenet_rebuilds)
+		var/obj/machinery/atmospherics/M = last_object
+		if(istype(M) && isnull(M.gcDestroyed))
+			try
+				M.build_network()
+			catch(var/exception/e)
+				catchException(e, M)
+			SCHECK
+		else
+			catchBadType(M)
+		deferred_pipenet_rebuilds -= M
+
 	for(last_object in pipe_networks)
 		var/datum/pipeline/pipeNetwork = last_object
 		if(istype(pipeNetwork) && isnull(pipeNetwork.gcDestroyed))
@@ -16,7 +28,6 @@
 			catch(var/exception/e)
 				catchException(e, pipeNetwork)
 			SCHECK
-			continue
 		else
 			catchBadType(pipeNetwork)
 			pipe_networks -= pipeNetwork