Modularizes Engine Submap Loading so it can be selected per-map!

Self-Explanatory - just go to engine_submaps_vr/mapname and check the _engine_submaps.dm to choose the engine presets you want to load.

Figured we might as well modularize this as it'll help with upcoming/new map projects in the future. :blep:

@novacat pls speedmerge thx

maps/submaps/engine_submaps_vr/engine.dm

@@ -1,41 +1,6 @@
-// This causes engine maps to get 'checked' and compiled, when undergoing a unit test.
-// This is so Travis can validate PoIs, and ensure future changes don't break PoIs, as PoIs are loaded at runtime and the compiler can't catch errors.
-// When adding a new engine, please add it to this list.
-#if MAP_TEST
-#include "engine_rust.dmm"
-#include "engine_singulo.dmm"
-#include "engine_sme.dmm"
-#endif
-
-/datum/map_template/engine
-	name = "Engine Content"
-	desc = "It would be boring to have the same engine every day right?"
-	// annihilate = TRUE - Would wipe out in a rectangular area unfortunately
-	allow_duplicates = FALSE
-
-/datum/map_template/engine/rust
-	name = "R-UST Engine"
-	desc = "R-UST Fusion Tokamak Engine"
-	mappath = 'maps/submaps/engine_submaps_vr/engine_rust.dmm'
-
-/datum/map_template/engine/singulo
-	name = "Singularity Engine"
-	desc = "Lord Singuloth"
-	mappath = 'maps/submaps/engine_submaps_vr/engine_singulo.dmm'
-
-/datum/map_template/engine/supermatter
-	name = "Supermatter Engine"
-	desc = "Old Faithful Supermatter"
-	mappath = 'maps/submaps/engine_submaps_vr/engine_sme.dmm'
-
-/datum/map_template/engine/tesla
-	name = "Edison's Bane"
-	desc = "The Telsa Engine"
-	mappath = 'maps/submaps/engine_submaps_vr/engine_tesla.dmm'
-
-
-
-// Landmark for where to load in the engine on permament map
+// Landmark for where to load in the engine on permament map. 
+// Map-specific engine subtypes are in maps/submaps/engine_submaps_vr/mapfolder/engine.dmm
+// If you're adding a new map, add your folder as mapname, and then copy the _engine_submaps.dm from one of the other folders to the new one, and make your submaps!
 /obj/effect/landmark/engine_loader
 	name = "Engine Loader"
 	var/clean_turfs // A list of lists, where each list is (x, )

maps/submaps/engine_submaps_vr/tether/_engine_submaps.dm

@@ -0,0 +1,34 @@
+// This causes engine maps to get 'checked' and compiled, when undergoing a unit test.
+// This is so Travis can validate PoIs, and ensure future changes don't break PoIs, as PoIs are loaded at runtime and the compiler can't catch errors.
+// When adding a new engine, please add it to this list.
+#if MAP_TEST
+#include "engine_rust.dmm"
+#include "engine_singulo.dmm"
+#include "engine_sme.dmm"
+#endif
+
+/datum/map_template/engine
+	name = "Engine Content"
+	desc = "It would be boring to have the same engine every day right?"
+	// annihilate = TRUE - Would wipe out in a rectangular area unfortunately
+	allow_duplicates = FALSE
+
+/datum/map_template/engine/rust
+	name = "R-UST Engine"
+	desc = "R-UST Fusion Tokamak Engine"
+	mappath = 'maps/submaps/engine_submaps_vr/tether/engine_rust.dmm'
+
+/datum/map_template/engine/singulo
+	name = "Singularity Engine"
+	desc = "Lord Singuloth"
+	mappath = 'maps/submaps/engine_submaps_vr/tether/engine_singulo.dmm'
+
+/datum/map_template/engine/supermatter
+	name = "Supermatter Engine"
+	desc = "Old Faithful Supermatter"
+	mappath = 'maps/submaps/engine_submaps_vr/tether/engine_sme.dmm'
+
+/datum/map_template/engine/tesla
+	name = "Edison's Bane"
+	desc = "The Telsa Engine"
+	mappath = 'maps/submaps/engine_submaps_vr/tether/engine_tesla.dmm'

vorestation.dme

@@ -3716,6 +3716,7 @@
 #include "maps\submaps\_readme.dm"
 #include "maps\submaps\engine_submaps_vr\engine.dm"
 #include "maps\submaps\engine_submaps_vr\engine_areas.dm"
+#include "maps\submaps\engine_submaps_vr\tether\_engine_submaps.dm"
 #include "maps\submaps\space_submaps\space.dm"
 #include "maps\submaps\space_submaps\debrisfield\debrisfield.dm"
 #include "maps\submaps\surface_submaps\mountains\mountains.dm"