Adds a new redgate map: The Casino Canal (#18587)

* starts da map

* starting to shape up I think?

* moar edits

* we got lots more stuff now

* we got dorms now :)

* moar doarm and PRIVATE GAME ROOMS WOAG

* adds chip machine

* tidy dis up

* oops

* pretties up private game rooms a bit

* ok now the chip dispenser works

* Adds resleeving stuff

* Adds pixel-displaced children of punlic paintings

* mmmmmm maint stuff

* adds VIP rooms and more maint stuff

* that's a lotta shit made woooo

* its almost... done... (the main building is anyway)

* Let's get this bih to actually load

* And let's get some proper areas separating indoor and outdoor

* Makes casino hall turfs actually render as intended

* WE HAVE AREAS NOW

* don't need this big ol file any more

* MOSTLY finishes the mai nbuilding

* finally finishes the main building (for now)

* does some exterior stuff but now it's crashing WHY

* oops

* adds subvariant of floodlight that starts turned on

* adds areas for well, secret areas

* TOO MUCH new shit

* Does a silly thing to make properly underwater cave turfs

* adds "open" underwater turfs that are functionally transparent divable turfs

* more funny secrets

* Makes open water turfs show a darker view underneath for visual clarity

* okay I think it might be done now

* makes indoor water effect look a bit nicer

* I ALMOST FORGOT

* engoodens code surrounding multiple auto-resleevers existing

* FUCK

* DOUBLE FUCK

* Lets things with GLASSPASS move through TGMC widnows

* actually it makes more sense for the TF gun to be here

* Makes 🏴‍☠️ secret a bit nicer

---------

Co-authored-by: Cameron Lennox <killer65311@gmail.com>

code/modules/resleeving/autoresleever.dm

@@ -1,3 +1,5 @@
+GLOBAL_LIST_EMPTY(active_autoresleevers)
+
 /obj/machinery/transhuman/autoresleever
 	name = "automatic resleever"
 	desc = "Uses advanced technology to detect when someone needs to be resleeved, and automatically prints and sleeves them into a new body. It even generates its own biomass!"
@@ -13,6 +15,14 @@
 	var/spawn_slots = -1				//How many people can be spawned from this? If -1 it's unlimited
 	var/spawntype						//The kind of mob that will be spawned, if set.
 
+/obj/machinery/transhuman/autoresleever/Initialize(mapload)
+	. = ..()
+	GLOB.active_autoresleevers += src
+
+/obj/machinery/transhuman/autoresleever/Destroy()
+	. = ..()
+	GLOB.active_autoresleevers -= src
+
 /obj/machinery/transhuman/autoresleever/update_icon()
 	. = ..()
 	if(stat & (BROKEN | MAINT | EMPED))