[READY FOR REVIEW] Lava land generation overhaul / variety (#21838)

* she lavas on my land till I chasm?

* need this

* whoops

* qwerty you are a dumbass

* now with 12 more maps per map

* repaths mesons, advanced mesons / meson implants show chasms

* more stuff

* range not radius dipshit

* sprites yipee

* define it

* undo mesons

* removes things I missed

* Apply suggestions from code review

Co-authored-by: Henri215 <77684085+Henri215@users.noreply.github.com>

* I'm lavaing it

---------

Co-authored-by: Henri215 <77684085+Henri215@users.noreply.github.com>

_maps/map_files/RandomRuins/LavaRuins/chasm_bridges/lavaland_bridge_horizontal_1.dmm

@@ -0,0 +1,46 @@
+//MAP CONVERTED BY dmm2tgm.py THIS HEADER COMMENT PREVENTS RECONVERSION, DO NOT REMOVE
+"a" = (
+/turf/simulated/wall/clockwork,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"b" = (
+/turf/simulated/floor/clockwork,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"c" = (
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+
+(1,1,1) = {"
+c
+a
+b
+a
+c
+"}
+(2,1,1) = {"
+c
+c
+b
+c
+c
+"}
+(3,1,1) = {"
+c
+c
+b
+c
+c
+"}
+(4,1,1) = {"
+c
+c
+b
+c
+c
+"}
+(5,1,1) = {"
+c
+a
+b
+a
+c
+"}

_maps/map_files/RandomRuins/LavaRuins/chasm_bridges/lavaland_bridge_horizontal_2.dmm

@@ -0,0 +1,46 @@
+//MAP CONVERTED BY dmm2tgm.py THIS HEADER COMMENT PREVENTS RECONVERSION, DO NOT REMOVE
+"a" = (
+/turf/simulated/wall/cult,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"b" = (
+/turf/simulated/floor/engine/cult,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"c" = (
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+
+(1,1,1) = {"
+c
+a
+b
+a
+c
+"}
+(2,1,1) = {"
+c
+c
+b
+c
+c
+"}
+(3,1,1) = {"
+c
+c
+b
+c
+c
+"}
+(4,1,1) = {"
+c
+c
+b
+c
+c
+"}
+(5,1,1) = {"
+c
+a
+b
+a
+c
+"}

_maps/map_files/RandomRuins/LavaRuins/chasm_bridges/lavaland_bridge_horizontal_3.dmm

@@ -0,0 +1,73 @@
+//MAP CONVERTED BY dmm2tgm.py THIS HEADER COMMENT PREVENTS RECONVERSION, DO NOT REMOVE
+"a" = (
+/turf/simulated/wall/cult,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"b" = (
+/obj/structure/stone_tile/surrounding,
+/obj/structure/stone_tile/center,
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"c" = (
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"g" = (
+/obj/structure/stone_tile/slab/cracked,
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"h" = (
+/obj/structure/stone_tile/slab,
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"m" = (
+/obj/structure/stone_tile/block,
+/obj/structure/stone_tile/block/cracked{
+	dir = 1
+	},
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"o" = (
+/obj/structure/stone_tile/block{
+	dir = 1
+	},
+/obj/structure/stone_tile/burnt,
+/obj/structure/stone_tile/surrounding_tile{
+	dir = 8
+	},
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+
+(1,1,1) = {"
+c
+a
+h
+a
+c
+"}
+(2,1,1) = {"
+c
+c
+m
+c
+c
+"}
+(3,1,1) = {"
+c
+c
+b
+c
+c
+"}
+(4,1,1) = {"
+c
+c
+o
+c
+c
+"}
+(5,1,1) = {"
+c
+a
+g
+a
+c
+"}

_maps/map_files/RandomRuins/LavaRuins/chasm_bridges/lavaland_bridge_horizontal_4.dmm

@@ -0,0 +1,49 @@
+//MAP CONVERTED BY dmm2tgm.py THIS HEADER COMMENT PREVENTS RECONVERSION, DO NOT REMOVE
+"a" = (
+/turf/simulated/wall/indestructible/hierophant,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"b" = (
+/turf/simulated/floor/indestructible/hierophant,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"c" = (
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"o" = (
+/turf/simulated/floor/indestructible/hierophant/two,
+/area/lavaland/surface/outdoors/unexplored/danger)
+
+(1,1,1) = {"
+c
+a
+b
+a
+c
+"}
+(2,1,1) = {"
+c
+c
+b
+c
+c
+"}
+(3,1,1) = {"
+c
+c
+o
+c
+c
+"}
+(4,1,1) = {"
+c
+c
+b
+c
+c
+"}
+(5,1,1) = {"
+c
+a
+b
+a
+c
+"}

_maps/map_files/RandomRuins/LavaRuins/chasm_bridges/lavaland_bridge_horizontal_5.dmm

@@ -0,0 +1,56 @@
+//MAP CONVERTED BY dmm2tgm.py THIS HEADER COMMENT PREVENTS RECONVERSION, DO NOT REMOVE
+"a" = (
+/turf/simulated/wall/mineral/wood/nonmetal,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"b" = (
+/turf/simulated/floor/wood,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"c" = (
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"v" = (
+/turf/simulated/floor/wood{
+	icon_state = "wood-broken3"
+	},
+/area/lavaland/surface/outdoors/unexplored/danger)
+"C" = (
+/turf/simulated/floor/wood{
+	icon_state = "wood-broken7"
+	},
+/area/lavaland/surface/outdoors/unexplored/danger)
+
+(1,1,1) = {"
+c
+a
+C
+a
+c
+"}
+(2,1,1) = {"
+c
+c
+b
+c
+c
+"}
+(3,1,1) = {"
+c
+c
+b
+c
+c
+"}
+(4,1,1) = {"
+c
+c
+v
+c
+c
+"}
+(5,1,1) = {"
+c
+a
+b
+a
+c
+"}

_maps/map_files/RandomRuins/LavaRuins/chasm_bridges/lavaland_bridge_horizontal_6.dmm

@@ -0,0 +1,49 @@
+//MAP CONVERTED BY dmm2tgm.py THIS HEADER COMMENT PREVENTS RECONVERSION, DO NOT REMOVE
+"a" = (
+/obj/structure/lattice/catwalk/mining,
+/obj/structure/marker_beacon/dock_marker/collision,
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"b" = (
+/obj/structure/lattice/catwalk/mining,
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"c" = (
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+
+(1,1,1) = {"
+c
+a
+b
+a
+c
+"}
+(2,1,1) = {"
+c
+c
+b
+c
+c
+"}
+(3,1,1) = {"
+c
+c
+b
+c
+c
+"}
+(4,1,1) = {"
+c
+c
+b
+c
+c
+"}
+(5,1,1) = {"
+c
+a
+b
+a
+c
+"}

_maps/map_files/RandomRuins/LavaRuins/chasm_bridges/lavaland_bridge_vertical_1.dmm

@@ -0,0 +1,46 @@
+//MAP CONVERTED BY dmm2tgm.py THIS HEADER COMMENT PREVENTS RECONVERSION, DO NOT REMOVE
+"a" = (
+/turf/simulated/wall/clockwork,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"b" = (
+/turf/simulated/floor/clockwork,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"c" = (
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+
+(1,1,1) = {"
+c
+c
+c
+c
+c
+"}
+(2,1,1) = {"
+a
+c
+c
+c
+a
+"}
+(3,1,1) = {"
+b
+b
+b
+b
+b
+"}
+(4,1,1) = {"
+a
+c
+c
+c
+a
+"}
+(5,1,1) = {"
+c
+c
+c
+c
+c
+"}

_maps/map_files/RandomRuins/LavaRuins/chasm_bridges/lavaland_bridge_vertical_2.dmm

@@ -0,0 +1,46 @@
+//MAP CONVERTED BY dmm2tgm.py THIS HEADER COMMENT PREVENTS RECONVERSION, DO NOT REMOVE
+"a" = (
+/turf/simulated/wall/cult,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"b" = (
+/turf/simulated/floor/engine/cult,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"c" = (
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+
+(1,1,1) = {"
+c
+c
+c
+c
+c
+"}
+(2,1,1) = {"
+a
+c
+c
+c
+a
+"}
+(3,1,1) = {"
+b
+b
+b
+b
+b
+"}
+(4,1,1) = {"
+a
+c
+c
+c
+a
+"}
+(5,1,1) = {"
+c
+c
+c
+c
+c
+"}

_maps/map_files/RandomRuins/LavaRuins/chasm_bridges/lavaland_bridge_vertical_3.dmm

@@ -0,0 +1,83 @@
+//MAP CONVERTED BY dmm2tgm.py THIS HEADER COMMENT PREVENTS RECONVERSION, DO NOT REMOVE
+"a" = (
+/turf/simulated/wall/cult,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"b" = (
+/obj/structure/stone_tile/slab,
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"c" = (
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"w" = (
+/obj/structure/stone_tile/center/cracked,
+/obj/structure/stone_tile/surrounding/cracked,
+/obj/structure/stone_tile/slab/cracked{
+	dir = 10
+	},
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"I" = (
+/obj/structure/stone_tile,
+/obj/structure/stone_tile{
+	dir = 4
+	},
+/obj/structure/stone_tile{
+	dir = 8
+	},
+/obj/structure/stone_tile/cracked{
+	dir = 1
+	},
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"M" = (
+/obj/structure/stone_tile/slab/cracked{
+	dir = 5
+	},
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"R" = (
+/obj/structure/stone_tile/block/cracked{
+	dir = 8
+	},
+/obj/structure/stone_tile/block{
+	dir = 4
+	},
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+
+(1,1,1) = {"
+c
+c
+c
+c
+c
+"}
+(2,1,1) = {"
+a
+c
+c
+c
+a
+"}
+(3,1,1) = {"
+b
+I
+w
+R
+M
+"}
+(4,1,1) = {"
+a
+c
+c
+c
+a
+"}
+(5,1,1) = {"
+c
+c
+c
+c
+c
+"}

_maps/map_files/RandomRuins/LavaRuins/chasm_bridges/lavaland_bridge_vertical_4.dmm

@@ -0,0 +1,49 @@
+//MAP CONVERTED BY dmm2tgm.py THIS HEADER COMMENT PREVENTS RECONVERSION, DO NOT REMOVE
+"a" = (
+/turf/simulated/floor/indestructible/hierophant/two,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"b" = (
+/turf/simulated/floor/indestructible/hierophant,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"c" = (
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"y" = (
+/turf/simulated/wall/indestructible/hierophant,
+/area/lavaland/surface/outdoors/unexplored/danger)
+
+(1,1,1) = {"
+c
+c
+c
+c
+c
+"}
+(2,1,1) = {"
+y
+c
+c
+c
+y
+"}
+(3,1,1) = {"
+a
+a
+b
+a
+a
+"}
+(4,1,1) = {"
+y
+c
+c
+c
+y
+"}
+(5,1,1) = {"
+c
+c
+c
+c
+c
+"}

_maps/map_files/RandomRuins/LavaRuins/chasm_bridges/lavaland_bridge_vertical_5.dmm

@@ -0,0 +1,62 @@
+//MAP CONVERTED BY dmm2tgm.py THIS HEADER COMMENT PREVENTS RECONVERSION, DO NOT REMOVE
+"a" = (
+/turf/simulated/floor/wood,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"b" = (
+/turf/simulated/floor/wood{
+	broken = 1;
+	icon_state = "wood-broken"
+	},
+/area/lavaland/surface/outdoors/unexplored/danger)
+"c" = (
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"q" = (
+/turf/simulated/floor/wood{
+	icon_state = "wood-broken3"
+	},
+/area/lavaland/surface/outdoors/unexplored/danger)
+"y" = (
+/turf/simulated/wall/mineral/wood,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"S" = (
+/turf/simulated/floor/wood{
+	icon_state = "wood-broken7"
+	},
+/area/lavaland/surface/outdoors/unexplored/danger)
+
+(1,1,1) = {"
+c
+c
+c
+c
+c
+"}
+(2,1,1) = {"
+y
+c
+c
+c
+y
+"}
+(3,1,1) = {"
+q
+a
+b
+a
+S
+"}
+(4,1,1) = {"
+y
+c
+c
+c
+y
+"}
+(5,1,1) = {"
+c
+c
+c
+c
+c
+"}

_maps/map_files/RandomRuins/LavaRuins/chasm_bridges/lavaland_bridge_vertical_6.dmm

@@ -0,0 +1,49 @@
+//MAP CONVERTED BY dmm2tgm.py THIS HEADER COMMENT PREVENTS RECONVERSION, DO NOT REMOVE
+"a" = (
+/obj/structure/lattice/catwalk/mining,
+/obj/structure/marker_beacon/dock_marker,
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"b" = (
+/obj/structure/lattice/catwalk/mining,
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+"c" = (
+/turf/template_noop,
+/area/lavaland/surface/outdoors/unexplored/danger)
+
+(1,1,1) = {"
+c
+c
+c
+c
+c
+"}
+(2,1,1) = {"
+b
+c
+c
+c
+b
+"}
+(3,1,1) = {"
+b
+a
+b
+a
+b
+"}
+(4,1,1) = {"
+b
+c
+c
+c
+b
+"}
+(5,1,1) = {"
+c
+c
+c
+c
+c
+"}

_maps/map_files/RandomRuins/LavaRuins/lavaland_surface_blooddrunk1.dmm

@@ -93,7 +93,7 @@
 /obj/structure/stone_tile{
 	dir = 1
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "r" = (
 /obj/structure/stone_tile/block{
@@ -106,7 +106,7 @@
 /obj/structure/stone_tile/cracked{
 	dir = 4
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "t" = (
 /obj/structure/stone_tile/surrounding/cracked{
@@ -115,14 +115,14 @@
 /mob/living/simple_animal/hostile/megafauna/blood_drunk_miner{
 	dir = 1
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "u" = (
 /obj/structure/stone_tile{
 	dir = 1
 	},
 /obj/structure/stone_tile/block/cracked,
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "v" = (
 /obj/structure/stone_tile{
@@ -136,7 +136,7 @@
 /obj/structure/stone_tile/block/cracked{
 	dir = 8
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "x" = (
 /obj/structure/stone_tile{

_maps/map_files/RandomRuins/LavaRuins/lavaland_surface_cultaltar.dmm

@@ -10,7 +10,7 @@
 	},
 /area/ruin/unpowered/misc_lavaruin)
 "c" = (
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/ruin/unpowered/misc_lavaruin)
 "d" = (
 /turf/simulated/wall/cult,

_maps/map_files/RandomRuins/LavaRuins/lavaland_surface_dead_ratvar.dmm

@@ -51,7 +51,7 @@
 	},
 /area/lavaland/surface/outdoors/unexplored)
 "l" = (
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors/unexplored)
 "m" = (
 /obj/item/clockwork/alloy_shards/medium,
@@ -75,7 +75,7 @@
 /area/lavaland/surface/outdoors/unexplored)
 "q" = (
 /obj/structure/lattice/catwalk/clockwork,
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors/unexplored)
 "r" = (
 /obj/structure/lattice/clockwork,

_maps/map_files/RandomRuins/LavaRuins/lavaland_surface_envy.dmm

@@ -6,7 +6,7 @@
 /turf/simulated/mineral/volcanic/lava_land_surface,
 /area/lavaland/surface/outdoors)
 "c" = (
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "d" = (
 /obj/effect/spawner/random_spawners/wall_rusted_always,

_maps/map_files/RandomRuins/LavaRuins/lavaland_surface_gluttony.dmm

@@ -6,7 +6,7 @@
 /turf/simulated/floor/plating/asteroid/basalt/lava_land_surface,
 /area/lavaland/surface/outdoors)
 "c" = (
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "d" = (
 /obj/effect/baseturf_helper/lava_land/surface,

_maps/map_files/RandomRuins/LavaRuins/lavaland_surface_greed.dmm

@@ -6,7 +6,7 @@
 /turf/simulated/mineral/volcanic/lava_land_surface,
 /area/lavaland/surface/outdoors)
 "c" = (
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "d" = (
 /obj/effect/baseturf_helper/lava_land/surface,

_maps/map_files/RandomRuins/LavaRuins/lavaland_surface_monster_nest.dmm

@@ -8,7 +8,7 @@
 /turf/simulated/floor/plating/asteroid/basalt/lava_land_surface,
 /area/lavaland/surface/outdoors)
 "m" = (
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "r" = (
 /obj/effect/mapping_helpers/no_lava,

_maps/map_files/RandomRuins/LavaRuins/lavaland_surface_pride.dmm

@@ -6,7 +6,7 @@
 /turf/simulated/mineral/volcanic/lava_land_surface,
 /area/lavaland/surface/outdoors)
 "c" = (
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "d" = (
 /obj/effect/baseturf_helper/lava_land/surface,

_maps/map_files/RandomRuins/LavaRuins/lavaland_surface_sloth.dmm

@@ -3,7 +3,7 @@
 /turf/simulated/wall/indestructible/riveted,
 /area/ruin/unpowered/misc_lavaruin)
 "b" = (
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/ruin/unpowered/misc_lavaruin)
 "c" = (
 /obj/item/paper/fluff/stations/lavaland/sloth/note,

_maps/map_files/RandomRuins/LavaRuins/lavaland_surface_xeno_nest.dmm

@@ -124,7 +124,7 @@
 /turf/simulated/floor/plating/asteroid/basalt/lava_land_surface,
 /area/ruin/unpowered/xenonest)
 "G" = (
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "H" = (
 /obj/structure/alien/weeds,

_maps/map_files/generic/Lavaland.dmm

@@ -60,7 +60,7 @@
 /turf/simulated/mineral/random/volcanic,
 /area/lavaland/surface/outdoors)
 "aj" = (
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "ak" = (
 /turf/simulated/mineral/random/volcanic,
@@ -1779,7 +1779,7 @@
 /obj/machinery/atmospherics/pipe/simple/hidden/scrubbers{
 	dir = 4
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "dP" = (
 /obj/machinery/atmospherics/pipe/simple/hidden/scrubbers{
@@ -1850,7 +1850,7 @@
 	dir = 1
 	},
 /obj/structure/lattice/catwalk/mining,
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "dU" = (
 /obj/machinery/atmospherics/pipe/simple/hidden/scrubbers{
@@ -3175,7 +3175,7 @@
 /area/mine/sleeper)
 "go" = (
 /obj/structure/stone_tile/block,
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "gp" = (
 /obj/structure/closet/secure_closet/miner,
@@ -3417,13 +3417,13 @@
 /obj/structure/stone_tile/block{
 	dir = 4
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "gO" = (
 /obj/structure/stone_tile/block{
 	dir = 8
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "gP" = (
 /obj/structure/stone_tile/slab,
@@ -3464,7 +3464,7 @@
 /obj/structure/stone_tile/block{
 	dir = 1
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "hv" = (
 /obj/effect/decal/cleanable/dirt,
@@ -3750,7 +3750,7 @@
 /obj/structure/stone_tile/surrounding_tile/cracked{
 	dir = 8
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "jH" = (
 /obj/structure/stone_tile/surrounding_tile{
@@ -3761,7 +3761,7 @@
 /obj/structure/stone_tile/surrounding_tile/cracked{
 	dir = 4
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "jK" = (
 /turf/simulated/floor/plasteel{
@@ -3778,7 +3778,7 @@
 /obj/structure/stone_tile/surrounding_tile/cracked{
 	dir = 8
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "jN" = (
 /obj/structure/stone_tile/surrounding_tile{
@@ -3789,7 +3789,7 @@
 	},
 /obj/structure/stone_tile/surrounding_tile,
 /obj/structure/stone_tile/center/cracked,
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "jP" = (
 /obj/effect/spawner/random_spawners/wall_rusted_maybe,
@@ -3870,7 +3870,7 @@
 /obj/structure/stone_tile/surrounding_tile/cracked{
 	dir = 1
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "kD" = (
 /obj/structure/stone_tile/surrounding_tile{
@@ -3883,7 +3883,7 @@
 	dir = 8
 	},
 /obj/structure/stone_tile/center,
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "kH" = (
 /obj/structure/stone_tile/surrounding_tile{
@@ -3894,7 +3894,7 @@
 	dir = 4
 	},
 /obj/structure/stone_tile/center/cracked,
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "kI" = (
 /turf/simulated/wall/mineral/titanium,
@@ -3910,7 +3910,7 @@
 	dir = 1
 	},
 /obj/structure/stone_tile/center,
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "kM" = (
 /obj/structure/stone_tile/block/cracked{
@@ -3996,7 +3996,7 @@
 /obj/structure/stone_tile/cracked{
 	dir = 8
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "lu" = (
 /obj/structure/stone_tile/block/cracked{
@@ -4015,17 +4015,17 @@
 /obj/structure/stone_tile/cracked{
 	dir = 1
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "lw" = (
 /obj/structure/stone_tile/cracked,
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "ly" = (
 /obj/structure/stone_tile/cracked{
 	dir = 1
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "lz" = (
 /obj/structure/stone_tile/cracked{
@@ -4034,7 +4034,7 @@
 /obj/structure/stone_tile/block{
 	dir = 4
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "lD" = (
 /obj/structure/stone_tile/block/cracked{
@@ -4043,7 +4043,7 @@
 /obj/structure/stone_tile/block/cracked{
 	dir = 8
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "lE" = (
 /obj/structure/stone_tile/block/cracked{
@@ -4052,7 +4052,7 @@
 /obj/structure/stone_tile/cracked{
 	dir = 1
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "lF" = (
 /obj/structure/stone_tile/block/cracked{
@@ -4064,7 +4064,7 @@
 /obj/structure/stone_tile{
 	dir = 8
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "lG" = (
 /obj/structure/stone_tile/block/cracked{
@@ -4077,7 +4077,7 @@
 /obj/structure/stone_tile/cracked{
 	dir = 4
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "lO" = (
 /obj/effect/decal/cleanable/dirt,
@@ -4100,7 +4100,7 @@
 /obj/structure/stone_tile/surrounding/cracked{
 	dir = 6
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "lR" = (
 /obj/structure/stone_tile/block/cracked{
@@ -4122,14 +4122,14 @@
 /obj/structure/stone_tile/cracked{
 	dir = 8
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "lW" = (
 /obj/structure/stone_tile/block/cracked,
 /obj/structure/stone_tile/block/cracked{
 	dir = 1
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "lZ" = (
 /obj/structure/stone_tile/block/cracked{
@@ -4138,7 +4138,7 @@
 /obj/structure/stone_tile/cracked{
 	dir = 4
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "ma" = (
 /obj/structure/stone_tile/block/cracked{
@@ -4157,7 +4157,7 @@
 /obj/structure/stone_tile/block{
 	dir = 8
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "mi" = (
 /obj/machinery/computer/security{
@@ -4188,7 +4188,7 @@
 	dir = 8
 	},
 /obj/structure/stone_tile/cracked,
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "mn" = (
 /obj/structure/stone_tile/block/cracked,
@@ -4254,7 +4254,7 @@
 /obj/structure/stone_tile{
 	dir = 4
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "mw" = (
 /obj/structure/stone_tile{
@@ -4263,11 +4263,11 @@
 /obj/structure/stone_tile{
 	dir = 4
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "mx" = (
 /obj/structure/stone_tile,
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "my" = (
 /obj/structure/stone_tile/cracked{
@@ -4300,7 +4300,7 @@
 /obj/structure/stone_tile{
 	dir = 1
 	},
-/turf/simulated/floor/plating/lava/smooth/lava_land_surface,
+/turf/simulated/floor/plating/lava/smooth/mapping_lava,
 /area/lavaland/surface/outdoors)
 "mD" = (
 /obj/structure/stone_tile,

code/__DEFINES/misc_defines.dm

@@ -546,3 +546,9 @@
 #define DEADCHAT_ANARCHY_MODE (1<<1)
 /// Mutes the democracy mode messages send to orbiters at the end of each cycle. Useful for when the cooldown is so low it'd get spammy.
 #define MUTE_DEADCHAT_DEMOCRACY_MESSAGES (1<<2)
+
+// Lavaland cave design defines
+
+#define BLOCKED_BURROWS "Blocked Burrows"
+#define CLASSIC_CAVES "Classic Caves"
+#define DEADLY_DEEPROCK "Deadly Deeprock"

code/_globalvars/mapping_vars.dm

@@ -50,4 +50,6 @@ GLOBAL_LIST_EMPTY(space_ruins_templates)
 GLOBAL_LIST_EMPTY(lava_ruins_templates)
 GLOBAL_LIST_EMPTY(shelter_templates)
 GLOBAL_LIST_EMPTY(shuttle_templates)
+GLOBAL_LIST_EMPTY(bridge_horizontal_templates)
+GLOBAL_LIST_EMPTY(bridge_vertical_templates)
 GLOBAL_LIST_EMPTY(event_templates)

code/controllers/subsystem/non_firing/SSmapping.dm

@@ -12,6 +12,10 @@ SUBSYSTEM_DEF(mapping)
 	var/list/ghostteleportlocs
 	///List of areas that exist on the station this shift
 	var/list/existing_station_areas
+	///What do we have as the lavaland theme today?
+	var/turf/simulated/floor/lavaland_theme
+	///What primary cave theme we have picked for cave generation today.
+	var/cave_theme
 
 // This has to be here because world/New() uses [station_name()], which looks this datum up
 /datum/controller/subsystem/mapping/PreInit()
@@ -36,6 +40,10 @@ SUBSYSTEM_DEF(mapping)
 		F << next_map.type
 
 /datum/controller/subsystem/mapping/Initialize()
+	lavaland_theme = pick(/turf/simulated/floor/plating/lava/smooth/lava_land_surface, /turf/simulated/floor/plating/lava/smooth/lava_land_surface/plasma, /turf/simulated/floor/chasm/straight_down/lava_land_surface)
+	log_startup_progress("We feel like [lavaland_theme] today...") //We load this first. In the event some nerd ever makes a surface map, and we don't have it in lavaland in the event lavaland is disabled.
+	cave_theme = pick(BLOCKED_BURROWS, CLASSIC_CAVES, DEADLY_DEEPROCK)
+	log_startup_progress("We feel like [cave_theme] today...")
 	// Load all Z level templates
 	preloadTemplates()
 
@@ -63,8 +71,22 @@ SUBSYSTEM_DEF(mapping)
 		log_startup_progress("Populating lavaland...")
 		var/lavaland_setup_timer = start_watch()
 		seedRuins(list(level_name_to_num(MINING)), GLOB.configuration.ruins.lavaland_ruin_budget, /area/lavaland/surface/outdoors/unexplored, GLOB.lava_ruins_templates)
-		spawn_rivers(level_name_to_num(MINING))
-		log_startup_progress("Successfully populated lavaland in [stop_watch(lavaland_setup_timer)]s.")
+		switch(lavaland_theme)
+			if(/turf/simulated/floor/plating/lava/smooth/lava_land_surface)
+				spawn_rivers(level_name_to_num(MINING)) //Default spawn, no tweaks needed
+			if(/turf/simulated/floor/plating/lava/smooth/lava_land_surface/plasma) //More rivers, smaller
+				spawn_rivers(level_name_to_num(MINING), nodes = 2)
+				spawn_rivers(level_name_to_num(MINING), nodes = 2)
+			if(/turf/simulated/floor/chasm/straight_down/lava_land_surface) //Thiner chasms, bridges, reaches to edge of map.
+				spawn_rivers(level_name_to_num(MINING), nodes = 6, turf_type = /turf/simulated/floor/plating/lava/smooth/mapping_lava, whitelist_area = /area/lavaland/surface/outdoors, min_x = 50, min_y = 7, max_x = 250, max_y = 225, prob = 10, prob_loss = 5)
+		var/time_spent = stop_watch(lavaland_setup_timer)
+		log_startup_progress("Successfully populated lavaland in [time_spent]s.")
+		if(time_spent >= 10)
+			log_startup_progress("!!!ERROR!!! Lavaland took FAR too long to generate at [time_spent] seconds. Notify maintainers immediately! !!!ERROR!!!") //In 3 testing cases so far, I have had it take far too long to generate. I am 99% sure I have fixed this issue, but never hurts to be sure
+			WARNING("!!!ERROR!!! Lavaland took FAR too long to generate at [time_spent] seconds. Notify maintainers immediately! !!!ERROR!!!")
+			var/loud_annoying_alarm = sound('sound/machines/engine_alert1.ogg')
+			for(var/get_player_attention in GLOB.player_list)
+				SEND_SOUND(get_player_attention, loud_annoying_alarm)
 	else
 		log_startup_progress("Skipping lavaland ruins...")
 

code/datums/helper_datums/map_template.dm

@@ -122,6 +122,7 @@
 		preloadRuinTemplates()
 	preloadShelterTemplates()
 	preloadShuttleTemplates()
+	preloadBridgeTemplates()
 	preloadEventTemplates()
 
 /proc/preloadRuinTemplates()
@@ -170,6 +171,22 @@
 		GLOB.shuttle_templates[S.shuttle_id] = S
 		GLOB.map_templates[S.shuttle_id] = S
 
+/proc/preloadBridgeTemplates()
+	for(var/item in subtypesof(/datum/map_template/ruin/bridge/horizontal))
+		var/datum/map_template/ruin/bridge/horizontal/horizontal_type = item
+		if(!(initial(horizontal_type.suffix)))
+			continue
+		var/datum/map_template/ruin/bridge/horizontal/S = new horizontal_type()
+		GLOB.bridge_horizontal_templates[S.suffix] = S
+		GLOB.map_templates[S.suffix] = S
+	for(var/item in subtypesof(/datum/map_template/ruin/bridge/vertical))
+		var/datum/map_template/ruin/bridge/horizontal/vertical_type = item
+		if(!(initial(vertical_type.suffix)))
+			continue
+		var/datum/map_template/ruin/bridge/vertical/V = new vertical_type()
+		GLOB.bridge_vertical_templates[V.suffix] = V
+		GLOB.map_templates[V.suffix] = V
+
 /proc/preloadEventTemplates()
 	for(var/item in subtypesof(/datum/map_template/event))
 		var/datum/map_template/event/event_type = item

code/datums/ruins/bridges/bridges.dm

@@ -0,0 +1,82 @@
+/datum/map_template/ruin/bridge
+	prefix = "_maps/map_files/RandomRuins/LavaRuins/chasm_bridges/"
+	ci_exclude = /datum/map_template/ruin/bridge
+
+/datum/map_template/ruin/bridge/horizontal
+	ci_exclude = /datum/map_template/ruin/bridge/horizontal
+
+/datum/map_template/ruin/bridge/horizontal/one
+	name = "Horizontal Bridge One"
+	suffix = "lavaland_bridge_horizontal_1.dmm"
+
+/datum/map_template/ruin/bridge/horizontal/two
+	name = "Horizontal Bridge Two"
+	suffix = "lavaland_bridge_horizontal_2.dmm"
+
+/datum/map_template/ruin/bridge/horizontal/three
+	name = "Horizontal Bridge Three"
+	suffix = "lavaland_bridge_horizontal_3.dmm"
+
+/datum/map_template/ruin/bridge/horizontal/four
+	name = "Horizontal Bridge Four"
+	suffix = "lavaland_bridge_horizontal_4.dmm"
+
+/datum/map_template/ruin/bridge/horizontal/five
+	name = "Horizontal Bridge Five"
+	suffix = "lavaland_bridge_horizontal_5.dmm"
+
+/datum/map_template/ruin/bridge/horizontal/six
+	name = "Horizontal Bridge Six"
+	suffix = "lavaland_bridge_horizontal_6.dmm"
+
+/datum/map_template/ruin/bridge/vertical
+	ci_exclude = /datum/map_template/ruin/bridge/vertical
+
+/datum/map_template/ruin/bridge/vertical/one
+	name = "Vertical Bridge One"
+	suffix = "lavaland_bridge_vertical_1.dmm"
+
+/datum/map_template/ruin/bridge/vertical/two
+	name = "Vertical Bridge Two"
+	suffix = "lavaland_bridge_vertical_2.dmm"
+
+/datum/map_template/ruin/bridge/vertical/three
+	name = "Vertical Bridge Three"
+	suffix = "lavaland_bridge_vertical_3.dmm"
+
+/datum/map_template/ruin/bridge/vertical/four
+	name = "Vertical Bridge Four"
+	suffix = "lavaland_bridge_vertical_4.dmm"
+
+/datum/map_template/ruin/bridge/vertical/five
+	name = "Vertical Bridge Five"
+	suffix = "lavaland_bridge_vertical_5.dmm"
+
+/datum/map_template/ruin/bridge/vertical/six
+	name = "Vertical Bridge Six"
+	suffix = "lavaland_bridge_vertical_6.dmm"
+
+/obj/effect/spawner/bridge
+	name = "Bridge spawner"
+	var/datum/map_template/ruin/bridge/template
+
+/obj/effect/spawner/bridge/Initialize(mapload)
+	. = ..()
+
+	var/turf/east = locate(x + 3, y, z)
+	var/turf/west = locate(x - 3, y, z)
+	var/turf/north = locate(x, y + 3, z)
+	var/turf/south = locate(x, y - 3, z)
+	var/turf/e1 = locate(x + 1, y, z)
+	var/turf/w1 = locate(x - 1, y, z)
+	var/turf/n1 = locate(x, y + 1, z)
+	var/turf/s1 = locate(x, y - 1, z)
+
+
+	if((ismineralturf(east) || istype(east, /turf/simulated/floor/plating/asteroid)) && (ismineralturf(west) || istype(west, /turf/simulated/floor/plating/asteroid)) && !(ismineralturf(n1) || istype(n1, /turf/simulated/floor/plating/asteroid)) && !(ismineralturf(s1) || istype(s1, /turf/simulated/floor/plating/asteroid)))
+		template = GLOB.bridge_horizontal_templates[pick("lavaland_bridge_horizontal_1.dmm", "lavaland_bridge_horizontal_2.dmm", "lavaland_bridge_horizontal_3.dmm", "lavaland_bridge_horizontal_4.dmm", "lavaland_bridge_horizontal_5.dmm", "lavaland_bridge_horizontal_6.dmm")]
+		template.load(loc, centered = TRUE)
+	else if((ismineralturf(north) || istype(north, /turf/simulated/floor/plating/asteroid)) && (ismineralturf(south) || istype(south, /turf/simulated/floor/plating/asteroid)) && !(ismineralturf(e1) || istype(e1, /turf/simulated/floor/plating/asteroid)) && !(ismineralturf(w1) || istype(w1, /turf/simulated/floor/plating/asteroid)))
+		template = GLOB.bridge_vertical_templates[pick("lavaland_bridge_vertical_1.dmm", "lavaland_bridge_vertical_2.dmm", "lavaland_bridge_vertical_3.dmm", "lavaland_bridge_vertical_4.dmm", "lavaland_bridge_vertical_5.dmm", "lavaland_bridge_vertical_6.dmm")]
+		template.load(loc, centered = TRUE)
+	return INITIALIZE_HINT_QDEL

code/game/turfs/simulated/floor/asteroid_floors.dm

@@ -148,7 +148,7 @@
 	nitrogen = 23
 	temperature = 300
 	planetary_atmos = TRUE
-	baseturf = /turf/simulated/floor/plating/lava/smooth/lava_land_surface
+	baseturf = /turf/simulated/floor/plating/lava/smooth/mapping_lava
 
 /turf/simulated/floor/plating/asteroid/airless
 	temperature = TCMB
@@ -198,7 +198,9 @@ GLOBAL_LIST_INIT(megafauna_spawn_list, list(/mob/living/simple_animal/hostile/me
 	if (!megafauna_spawn_list)
 		megafauna_spawn_list = GLOB.megafauna_spawn_list
 	if (!flora_spawn_list)
-		flora_spawn_list = list(/obj/structure/flora/ash/leaf_shroom = 2 , /obj/structure/flora/ash/cap_shroom = 2 , /obj/structure/flora/ash/stem_shroom = 2 , /obj/structure/flora/ash/cacti = 1, /obj/structure/flora/ash/tall_shroom = 2)
+		flora_spawn_list = list(/obj/structure/flora/ash/leaf_shroom = 2, /obj/structure/flora/ash/cap_shroom = 2, /obj/structure/flora/ash/stem_shroom = 2, /obj/structure/flora/ash/cacti = 1, /obj/structure/flora/ash/tall_shroom = 2, /obj/structure/flora/ash/rock/style_random = 1)
+		if(SSmapping.cave_theme == BLOCKED_BURROWS)
+			flora_spawn_list += list(/obj/structure/flora/ash/rock/style_random = 3) //Let us see how this goes
 	. = ..()
 	if(!has_data)
 		produce_tunnel_from_data()
@@ -216,7 +218,18 @@ GLOBAL_LIST_INIT(megafauna_spawn_list, list(/mob/living/simple_animal/hostile/me
 	backward_cave_dir = angle2dir(dir2angle(forward_cave_dir) + 180)
 
 /turf/simulated/floor/plating/asteroid/airless/cave/proc/produce_tunnel_from_data(tunnel_length, excluded_dir = -1)
-	get_cave_data(tunnel_length, excluded_dir)
+	if(!tunnel_length)//This is a sub cave do not overide repeat do not overide
+		get_cave_data(tunnel_length, excluded_dir)
+	switch(SSmapping.cave_theme)
+		if(BLOCKED_BURROWS) //Longer on average
+			get_cave_data(rand(40, 60), excluded_dir)
+		if(CLASSIC_CAVES) //Classic
+			get_cave_data(tunnel_length, excluded_dir)
+		if(DEADLY_DEEPROCK) //Smaller into large rooms with more mobs.
+			get_cave_data(rand(20, 40), excluded_dir)
+			if(prob(25)) //Less caves due to big openings. This may lead to fauna inside 1x1 rooms. We'll call that a suprise mechanic
+				SpawnFloor(src, 75) //now with extra suprise
+				return
 	// Make our tunnels
 	make_tunnel(forward_cave_dir)
 	if(going_backwards)
@@ -233,7 +246,7 @@ GLOBAL_LIST_INIT(megafauna_spawn_list, list(/mob/living/simple_animal/hostile/me
 			break
 
 		var/list/L = list(45)
-		if(ISODD(dir2angle(dir))) // We're going at an angle and we want thick angled tunnels.
+		if(ISODD(dir2angle(dir)) && (!SSmapping.cave_theme == BLOCKED_BURROWS || prob(33))) // We're going at an angle and we want thick angled tunnels.
 			L += -45
 
 		// Expand the edges of our tunnel
@@ -250,7 +263,13 @@ GLOBAL_LIST_INIT(megafauna_spawn_list, list(/mob/living/simple_animal/hostile/me
 
 		if(istype(tunnel))
 			// Small chance to have forks in our tunnel; otherwise dig our tunnel.
-			if(i > 3 && prob(20))
+			var/caveprob = 20
+			switch(SSmapping.cave_theme)
+				if(BLOCKED_BURROWS) //Longer on average
+					caveprob = 30 //More splitting
+				if(DEADLY_DEEPROCK) //Smaller into large rooms with more mobs.
+					caveprob = 10 //Less splitting
+			if(i > 3 && prob(caveprob))
 				var/turf/simulated/floor/plating/asteroid/airless/cave/C = tunnel.ChangeTurf(data_having_type, FALSE, TRUE)
 				C.going_backwards = FALSE
 				C.produce_tunnel_from_data(rand(10, 15), dir)
@@ -262,11 +281,47 @@ GLOBAL_LIST_INIT(megafauna_spawn_list, list(/mob/living/simple_animal/hostile/me
 		// Chance to change our direction left or right.
 		if(i > 2 && prob(33))
 			// We can't go a full loop though
-			next_angle = -next_angle
+			if(!SSmapping.cave_theme == BLOCKED_BURROWS || prob(60))
+				next_angle = -next_angle
 			setDir(angle2dir(dir2angle(dir) )+ next_angle)
+		if(length -2 == i && !has_data) //Branches will not make this
+			SpawnRoom(tunnel)
 
+/turf/simulated/floor/plating/asteroid/airless/cave/proc/SpawnRoom(turf/T)
+	switch(SSmapping.cave_theme)
+		if(DEADLY_DEEPROCK)
+			var/tempradius = rand(10, 15)
+			var/probmodifer = 43 * tempradius //Yes this is a magic number, it is a magic number that works well.
+			for(var/turf/NT in circlerangeturfs(T, tempradius))
+				var/distance = (max(get_dist(T, NT), 1)) //Get dist throws -1 if same turf
+				if(prob(min(probmodifer / distance, 100)))
+					if(ismineralturf(NT) || istype(NT, /turf/simulated/floor/plating/asteroid)) //No spawning on lava / other ruins
+						SpawnFloor(NT, 50) //Room has higher probabilty.
+			if(prob(25))
+				tempradius = round(tempradius / 3)
+				var/turf/oasis_lake = pickweight(list(/turf/simulated/floor/plating/lava/smooth/lava_land_surface = 4, /turf/simulated/floor/plating/lava/smooth/lava_land_surface/plasma = 4, /turf/simulated/floor/chasm/straight_down/lava_land_surface = 4, /turf/simulated/floor/plating/lava/smooth/mapping_lava = 6, /turf/simulated/floor/beach/away/water = 1, /turf/simulated/floor/plating/asteroid = 1))
+				if(oasis_lake == /turf/simulated/floor/plating/asteroid)
+					new /obj/effect/spawner/oasisrock(T, tempradius)
+				for(var/turf/oasis in circlerangeturfs(T, tempradius))
+					oasis.ChangeTurf(oasis_lake, ignore_air = TRUE)
 
-/turf/simulated/floor/plating/asteroid/airless/cave/proc/SpawnFloor(turf/T)
+/obj/effect/spawner/oasisrock
+	name = "Oasis rock spawner"
+
+/obj/effect/spawner/oasisrock/Initialize(mapload, radius)
+	. = ..()
+
+	addtimer(CALLBACK(src, PROC_REF(make_rock), radius), 5 SECONDS)
+
+/obj/effect/spawner/oasisrock/proc/make_rock(radius)
+	for(var/turf/oasis in circlerangeturfs(get_turf(src), radius))
+		oasis.ChangeTurf(/turf/simulated/mineral/random/high_chance/volcanic, ignore_air = TRUE)
+	var/list/valid_turfs = RANGE_EDGE_TURFS(radius + 2, src)
+	for(var/mob/M in range(src, radius)) //We don't want mobs inside the ore rock
+		M.forceMove(pick(valid_turfs))
+	qdel(src)
+
+/turf/simulated/floor/plating/asteroid/airless/cave/proc/SpawnFloor(turf/T, monsterprob = 30)
 	for(var/S in RANGE_TURFS(1, src))
 		var/turf/NT = S
 		if(!NT || isspaceturf(NT) || istype(NT.loc, /area/mine/explored) || istype(NT.loc, /area/lavaland/surface/outdoors/explored))
@@ -276,11 +331,11 @@ GLOBAL_LIST_INIT(megafauna_spawn_list, list(/mob/living/simple_animal/hostile/me
 		return
 	SpawnFlora(T)
 
-	SpawnMonster(T)
+	SpawnMonster(T, monsterprob)
 	T.ChangeTurf(turf_type, FALSE, FALSE, TRUE)
 
-/turf/simulated/floor/plating/asteroid/airless/cave/proc/SpawnMonster(turf/T)
-	if(prob(30))
+/turf/simulated/floor/plating/asteroid/airless/cave/proc/SpawnMonster(turf/T, monsterprob = 30)
+	if(prob(monsterprob))
 		if(istype(loc, /area/mine/explored) || !istype(loc, /area/lavaland/surface/outdoors/unexplored))
 			return
 		var/randumb = pickweight(mob_spawn_list)
@@ -291,11 +346,17 @@ GLOBAL_LIST_INIT(megafauna_spawn_list, list(/mob/living/simple_animal/hostile/me
 					randumb = maybe_boss
 			else //this is not danger, don't spawn a boss, spawn something else
 				randumb = pickweight(mob_spawn_list)
-
-		for(var/thing in urange(12, T)) //prevents mob clumps
+		var/scanrange = 12
+		var/megafaunarange = 7
+		switch(SSmapping.cave_theme)
+			if(DEADLY_DEEPROCK)
+				if(prob(50) && monsterprob > 30)
+					scanrange = rand(4, 7)
+					megafaunarange = scanrange
+		for(var/thing in urange(scanrange, T)) //prevents mob clumps
 			if(!ishostile(thing) && !istype(thing, /obj/structure/spawner))
 				continue
-			if((ismegafauna(randumb) || ismegafauna(thing)) && get_dist(T, thing) <= 7)
+			if((ismegafauna(randumb) || ismegafauna(thing)) && get_dist(T, thing) <= megafaunarange)
 				return //if there's a megafauna within standard view don't spawn anything at all
 			if(ispath(randumb, /mob/living/simple_animal/hostile/asteroid) || istype(thing, /mob/living/simple_animal/hostile/asteroid))
 				return //if the random is a standard mob, avoid spawning if there's another one within 12 tiles
@@ -314,7 +375,11 @@ GLOBAL_LIST_INIT(megafauna_spawn_list, list(/mob/living/simple_animal/hostile/me
 #undef SPAWN_BUBBLEGUM
 
 /turf/simulated/floor/plating/asteroid/airless/cave/proc/SpawnFlora(turf/T)
-	if(prob(12))
+	var/floraprob = 12
+	switch(SSmapping.cave_theme)
+		if(BLOCKED_BURROWS)
+			floraprob = 30 //Lots of folliage, lots of blockage
+	if(prob(floraprob))
 		if(istype(loc, /area/mine/explored) || istype(loc, /area/lavaland/surface/outdoors/explored))
 			return
 		var/randumb = pickweight(flora_spawn_list)

code/game/turfs/simulated/floor/chasm.dm

@@ -9,6 +9,8 @@
 	smoothing_groups = list(SMOOTH_GROUP_TURF, SMOOTH_GROUP_TURF_CHASM)
 	canSmoothWith = list(SMOOTH_GROUP_TURF_CHASM)
 	density = TRUE //This will prevent hostile mobs from pathing into chasms, while the canpass override will still let it function like an open turf
+	layer = 1.7
+	intact = 0
 	var/static/list/falling_atoms = list() //Atoms currently falling into the chasm
 	var/static/list/forbidden_types = typecacheof(list(
 		/obj/singularity,
@@ -24,7 +26,10 @@
 		/obj/effect/collapse,
 		/obj/effect/particle_effect/ion_trails,
 		/obj/effect/abstract,
-		/obj/effect/ebeam
+		/obj/effect/ebeam,
+		/obj/effect/spawner,
+		/obj/structure/railing,
+		/obj/machinery/atmospherics/pipe/simple
 		))
 	var/drop_x = 1
 	var/drop_y = 1
@@ -65,7 +70,7 @@
 				qdel(L)
 				playsound(src, 'sound/weapons/genhit.ogg', 50, 1)
 				to_chat(user, "<span class='notice'>You build a floor.</span>")
-				ChangeTurf(/turf/simulated/floor/plating)
+				ChangeTurf(/turf/simulated/floor/plating, keep_icon = FALSE)
 			else
 				to_chat(user, "<span class='warning'>You need one floor tile to build a floor!</span>")
 		else
@@ -140,9 +145,9 @@
 	nitrogen = 23
 	temperature = 300
 	planetary_atmos = TRUE
-	baseturf = /turf/simulated/floor/chasm/straight_down/lava_land_surface
-	light_range = 1.9 //slightly less range than lava
-	light_power = 0.65 //less bright, too
+	baseturf = /turf/simulated/floor/chasm/straight_down/lava_land_surface //Chasms should not turn into lava
+	light_range = 2
+	light_power = 0.75
 	light_color = LIGHT_COLOR_LAVA //let's just say you're falling into lava, that makes sense right
 
 /turf/simulated/floor/chasm/straight_down/lava_land_surface/drop(atom/movable/AM)

code/game/turfs/simulated/floor/lava.dm

@@ -56,7 +56,7 @@
 	return FALSE
 
 /turf/simulated/floor/plating/lava/proc/burn_stuff(AM)
-	. = 0
+	. = FALSE
 
 	if(find_safeties())
 		return FALSE
@@ -71,7 +71,7 @@
 				continue
 			if((O.resistance_flags & (LAVA_PROOF|INDESTRUCTIBLE)) || O.throwing)
 				continue
-			. = 1
+			. = TRUE
 			if((O.resistance_flags & (ON_FIRE)))
 				continue
 			if(!(O.resistance_flags & FLAMMABLE))
@@ -83,7 +83,7 @@
 			O.fire_act(10000, 1000)
 
 		else if(isliving(thing))
-			. = 1
+			. = TRUE
 			var/mob/living/L = thing
 			if(L.flying)
 				continue	//YOU'RE FLYING OVER IT
@@ -142,3 +142,101 @@
 
 /turf/simulated/floor/plating/lava/smooth/airless
 	temperature = TCMB
+
+/turf/simulated/floor/plating/lava/smooth/lava_land_surface/plasma
+	name = "liquid plasma"
+	desc = "A flowing stream of chilled liquid plasma. You probably shouldn't get in."
+	icon = 'icons/turf/floors/liquidplasma.dmi'
+	icon_state = "liquidplasma-255"
+	base_icon_state = "liquidplasma"
+	baseturf = /turf/simulated/floor/plating/lava/smooth/lava_land_surface/plasma
+
+	light_range = 3
+	light_power = 0.75
+	light_color = LIGHT_COLOR_PINK
+
+/turf/simulated/floor/plating/lava/smooth/lava_land_surface/plasma/examine(mob/user)
+	. = ..()
+	. += "<span class='info'>Some <b>liquid plasma<b> could probably be scooped up with a <b>container</b>.</span>"
+
+/turf/simulated/floor/plating/lava/smooth/lava_land_surface/plasma/attackby(obj/item/I, mob/user, params)
+	if(!I.is_open_container())
+		return ..()
+	if(!I.reagents.add_reagent("plasma", 10))
+		to_chat(user, "<span class='warning'>[I] is full.</span>")
+		return
+	to_chat(user, "<span class='notice'>You scoop out some plasma from the [src] using [I].</span>")
+
+/turf/simulated/floor/plating/lava/smooth/lava_land_surface/plasma/burn_stuff(AM)
+	. = FALSE
+	if(find_safeties())
+		return FALSE
+
+	var/thing_to_check = src
+	if(AM)
+		thing_to_check = list(AM)
+	for(var/thing in thing_to_check)
+		if(isobj(thing))
+			var/obj/O = thing
+			if(!O.simulated)
+				continue
+			if((O.resistance_flags & (LAVA_PROOF|INDESTRUCTIBLE)) || O.throwing)
+				continue
+			. = TRUE
+			if((O.resistance_flags & ON_FIRE))
+				continue
+			if(!(O.resistance_flags & FLAMMABLE))
+				O.resistance_flags |= FLAMMABLE //Even fireproof things burn up in lava
+			if(O.resistance_flags & FIRE_PROOF)
+				O.resistance_flags &= ~FIRE_PROOF
+			if(O.armor.getRating(FIRE) > 50) //obj with 100% fire armor still get slowly burned away.
+				O.armor = O.armor.setRating(fire_value = 50)
+			O.fire_act(10000, 1000)
+
+		if(!isliving(thing))
+			continue
+		. = TRUE
+		var/mob/living/burn_living = thing
+		if(burn_living.flying)
+			continue	//YOU'RE FLYING OVER IT
+		var/buckle_check = burn_living.buckling
+		if(!buckle_check)
+			buckle_check = burn_living.buckled
+		if(isobj(buckle_check))
+			var/obj/O = buckle_check
+			if(O.resistance_flags & LAVA_PROOF)
+				continue
+		else if(isliving(buckle_check))
+			var/mob/living/live = buckle_check
+			if("lava" in live.weather_immunities)
+				continue
+		if("lava" in burn_living.weather_immunities)
+			continue
+		burn_living.adjustFireLoss(2)
+		if(QDELETED(burn_living))
+			return
+		burn_living.adjust_fire_stacks(20) //dipping into a stream of plasma would probably make you more flammable than usual
+		burn_living.IgniteMob()
+		burn_living.adjust_bodytemperature(-rand(50, 65)) //its cold, man
+		if(!ishuman(burn_living) || prob(65))
+			return
+		var/mob/living/carbon/human/burn_human = burn_living
+		var/datum/species/burn_species = burn_human.dna.species
+		if(istype(burn_species, /datum/species/plasmaman) || istype(burn_species, /datum/species/machine)) //ignore plasmamen/robotic species.
+			return
+
+		burn_human.adjustToxLoss(15) //Cold mutagen is bad for you, more at 11.
+		burn_human.adjustFireLoss(15)
+
+/turf/simulated/floor/plating/lava/smooth/mapping_lava
+	name = "Adaptive lava / chasm / plasma"
+	icon_state = "mappinglava"
+	base_icon_state = "mappinglava"
+	baseturf = /turf/simulated/floor/plating/lava/smooth/mapping_lava
+
+
+/turf/simulated/floor/plating/lava/smooth/mapping_lava/Initialize(mapload)
+	. = ..()
+	ChangeTurf(SSmapping.lavaland_theme)
+
+

code/game/turfs/simulated/minerals.dm

@@ -251,7 +251,7 @@
 /turf/simulated/mineral/random/high_chance/volcanic
 	environment_type = "basalt"
 	turf_type = /turf/simulated/floor/plating/asteroid/basalt/lava_land_surface
-	baseturf = /turf/simulated/floor/plating/lava/smooth/lava_land_surface
+	baseturf = /turf/simulated/floor/plating/lava/smooth/mapping_lava
 	oxygen = 14
 	nitrogen = 23
 	temperature = 300
@@ -271,7 +271,7 @@
 /turf/simulated/mineral/random/volcanic
 	environment_type = "basalt"
 	turf_type = /turf/simulated/floor/plating/asteroid/basalt/lava_land_surface
-	baseturf = /turf/simulated/floor/plating/lava/smooth/lava_land_surface
+	baseturf = /turf/simulated/floor/plating/lava/smooth/mapping_lava
 	oxygen = 14
 	nitrogen = 23
 	temperature = 300
@@ -293,7 +293,7 @@
 /turf/simulated/mineral/random/labormineral/volcanic
 	environment_type = "basalt"
 	turf_type = /turf/simulated/floor/plating/asteroid/basalt/lava_land_surface
-	baseturf = /turf/simulated/floor/plating/lava/smooth/lava_land_surface
+	baseturf = /turf/simulated/floor/plating/lava/smooth/mapping_lava
 	oxygen = 14
 	nitrogen = 23
 	temperature = 300
@@ -467,7 +467,7 @@
 /turf/simulated/mineral/volcanic/lava_land_surface
 	environment_type = "basalt"
 	turf_type = /turf/simulated/floor/plating/asteroid/basalt/lava_land_surface
-	baseturf = /turf/simulated/floor/plating/lava/smooth/lava_land_surface
+	baseturf = /turf/simulated/floor/plating/lava/smooth/mapping_lava
 	defer_change = 1
 
 //gibtonite state defines

code/game/turfs/simulated/river.dm

@@ -4,7 +4,7 @@
 #define RANDOM_LOWER_X 50
 #define RANDOM_LOWER_Y 50
 
-/proc/spawn_rivers(target_z, nodes = 4, turf_type = /turf/simulated/floor/plating/lava/smooth/lava_land_surface, whitelist_area = /area/lavaland/surface/outdoors, min_x = RANDOM_LOWER_X, min_y = RANDOM_LOWER_Y, max_x = RANDOM_UPPER_X, max_y = RANDOM_UPPER_Y)
+/proc/spawn_rivers(target_z, nodes = 4, turf_type = /turf/simulated/floor/plating/lava/smooth/mapping_lava, whitelist_area = /area/lavaland/surface/outdoors, min_x = RANDOM_LOWER_X, min_y = RANDOM_LOWER_Y, max_x = RANDOM_UPPER_X, max_y = RANDOM_UPPER_Y, prob = 25, prob_loss = 11)
 	var/list/river_nodes = list()
 	var/num_spawned = 0
 	var/list/possible_locs = block(locate(min_x, min_y, target_z), locate(max_x, max_y, target_z))
@@ -46,6 +46,9 @@
 				cur_dir = get_dir(cur_turf, target_turf)
 
 			cur_turf = get_step(cur_turf, cur_dir)
+			if(cur_turf == null) //This might be the fuck up. Kill the loop if this happens
+				message_admins("Encountered a null turf in river loop.")
+				break
 			var/area/new_area = get_area(cur_turf)
 			if(!istype(new_area, whitelist_area) || (cur_turf.flags & NO_LAVA_GEN)) //Rivers will skip ruins
 				detouring = 0
@@ -54,7 +57,9 @@
 				continue
 			else
 				var/turf/river_turf = cur_turf.ChangeTurf(turf_type, ignore_air = TRUE)
-				river_turf.Spread(25, 11, whitelist_area)
+				if(prob(1))
+					new /obj/effect/spawner/bridge(river_turf)
+				river_turf.Spread(prob, prob_loss, whitelist_area)
 
 	for(var/WP in river_nodes)
 		qdel(WP)
@@ -91,6 +96,8 @@
 		var/turf/T = F
 		if(!istype(T, logged_turf_type) && T.ChangeTurf(type, ignore_air = TRUE) && prob(probability))
 			T.Spread(probability - prob_loss, prob_loss, whitelisted_area)
+			if(prob(1))
+				new /obj/effect/spawner/bridge(T)
 
 	for(var/F in diagonal_turfs) //diagonal turfs only sometimes change, but will always spread if changed
 		var/turf/T = F
@@ -99,6 +106,8 @@
 		else if(ismineralturf(T))
 			var/turf/simulated/mineral/M = T
 			M.ChangeTurf(M.turf_type, ignore_air = TRUE)
+			if(prob(1))
+				new /obj/effect/spawner/bridge(M)
 
 
 #undef RANDOM_UPPER_X

code/modules/mapping/mapping_helpers.dm

@@ -52,7 +52,7 @@
 
 /obj/effect/baseturf_helper/lava_land/surface
 	name = "lavaland baseturf editor"
-	baseturf = /turf/simulated/floor/plating/lava/smooth/lava_land_surface
+	baseturf = /turf/simulated/floor/plating/lava/smooth/mapping_lava
 
 /obj/effect/mapping_helpers
 	icon = 'icons/effects/mapping_helpers.dmi'

code/modules/mining/lavaland/ash_flora.dm

@@ -17,6 +17,7 @@
 	var/harvest_message_med = "You pick a mushroom, carefully collecting the shavings from its cap."
 	var/harvest_message_high = "You harvest and collect shavings from several mushroom caps."
 	var/harvested = FALSE
+	var/delete_on_harvest = FALSE
 	var/base_icon
 	var/regrowth_time_low = 8 MINUTES
 	var/regrowth_time_high = 16 MINUTES
@@ -46,6 +47,9 @@
 	name = harvested_name
 	desc = harvested_desc
 	harvested = TRUE
+	if(delete_on_harvest)
+		qdel(src)
+		return 1
 	addtimer(CALLBACK(src, PROC_REF(regrow)), rand(regrowth_time_low, regrowth_time_high))
 	return 1
 
@@ -143,6 +147,40 @@
 	// min dmg 3, max dmg 6, prob(70)
 	AddComponent(/datum/component/caltrop, 3, 6, 70)
 
+
+/*********
+ * Rocks *
+ *********/
+// (I know these aren't plants)
+
+/obj/structure/flora/ash/rock
+	name = "large rock"
+	desc = "A volcanic rock. Pioneers used to ride these babies for miles."
+	icon_state = "basalt1"
+	density = TRUE
+	resistance_flags = FIRE_PROOF
+	harvest = /obj/item/stack/ore/glass/basalt
+	harvest_time = 6 SECONDS
+	harvest_amount_low = 10
+	harvest_amount_high = 20
+	harvest_message_low = "You finish mining the rock."
+	harvest_message_med = "You finish mining the rock."
+	harvest_message_high = "You finish mining the rock."
+	delete_on_harvest = TRUE
+
+/obj/structure/flora/ash/rock/style_2
+	icon_state = "basalt2"
+
+/obj/structure/flora/ash/rock/style_3
+	icon_state = "basalt3"
+
+/obj/structure/flora/ash/rock/style_4
+	icon_state = "basalt4"
+
+/obj/structure/flora/ash/rock/style_random/Initialize(mapload)
+	. = ..()
+	icon_state = "basalt[rand(1, 4)]"
+
 /obj/item/reagent_containers/food/snacks/grown/ash_flora
 	name = "mushroom shavings"
 	desc = "Some shavings from a tall mushroom. With enough, might serve as a bowl."

paradise.dme

@@ -476,6 +476,7 @@
 #include "code\datums\outfits\vv_outfit.dm"
 #include "code\datums\ruins\lavaland.dm"
 #include "code\datums\ruins\space_ruins.dm"
+#include "code\datums\ruins\bridges\bridges.dm"
 #include "code\datums\spell_cooldown\spell_charges.dm"
 #include "code\datums\spell_cooldown\spell_cooldown.dm"
 #include "code\datums\spell_handler\alien_spell_handler.dm"