Added map generation lava protection to the syndicate lava base (#34764)

* Added mapping helper for preventing lava river generation

* Added lava protection to the syndicate base bridge

* Re-added decals to the syndicate lava base bridge

_maps/RandomRuins/LavaRuins/lavaland_surface_syndicate_base1.dmm

@@ -2597,6 +2597,7 @@
 /obj/effect/turf_decal/stripes/line{
 	dir = 9
 	},
+/obj/effect/mapping_helpers/no_lava,
 /turf/open/floor/plating{
 	baseturfs = /turf/open/lava/smooth/lava_land_surface;
 	initial_gas_mix = "o2=14;n2=23;TEMP=300"
@@ -2606,6 +2607,7 @@
 /obj/effect/turf_decal/stripes/line{
 	dir = 1
 	},
+/obj/effect/mapping_helpers/no_lava,
 /turf/open/floor/plating{
 	baseturfs = /turf/open/lava/smooth/lava_land_surface;
 	initial_gas_mix = "o2=14;n2=23;TEMP=300"
@@ -2711,6 +2713,7 @@
 /obj/effect/turf_decal/stripes/line{
 	dir = 8
 	},
+/obj/effect/mapping_helpers/no_lava,
 /turf/open/floor/plating{
 	baseturfs = /turf/open/lava/smooth/lava_land_surface;
 	initial_gas_mix = "o2=14;n2=23;TEMP=300"
@@ -2718,6 +2721,7 @@
 /area/lavaland/surface/outdoors)
 "iv" = (
 /obj/effect/decal/cleanable/dirt,
+/obj/effect/mapping_helpers/no_lava,
 /turf/open/floor/plating{
 	baseturfs = /turf/open/lava/smooth/lava_land_surface;
 	initial_gas_mix = "o2=14;n2=23;TEMP=300"
@@ -3097,6 +3101,7 @@
 /obj/effect/turf_decal/stripes/corner{
 	dir = 4
 	},
+/obj/effect/mapping_helpers/no_lava,
 /turf/open/floor/plating{
 	baseturfs = /turf/open/lava/smooth/lava_land_surface;
 	initial_gas_mix = "o2=14;n2=23;TEMP=300"
@@ -3161,6 +3166,7 @@
 /turf/open/floor/plasteel,
 /area/ruin/unpowered/syndicate_lava_base/main)
 "jk" = (
+/obj/effect/mapping_helpers/no_lava,
 /turf/open/floor/plating{
 	baseturfs = /turf/open/lava/smooth/lava_land_surface;
 	initial_gas_mix = "o2=14;n2=23;TEMP=300"
@@ -4331,6 +4337,7 @@
 /obj/effect/turf_decal/stripes/line{
 	dir = 10
 	},
+/obj/effect/mapping_helpers/no_lava,
 /turf/open/floor/plating{
 	baseturfs = /turf/open/lava/smooth/lava_land_surface;
 	initial_gas_mix = "o2=14;n2=23;TEMP=300"
@@ -4338,6 +4345,7 @@
 /area/lavaland/surface/outdoors)
 "lw" = (
 /obj/effect/turf_decal/stripes/line,
+/obj/effect/mapping_helpers/no_lava,
 /turf/open/floor/plating{
 	baseturfs = /turf/open/lava/smooth/lava_land_surface;
 	initial_gas_mix = "o2=14;n2=23;TEMP=300"

code/__DEFINES/flags.dm

@@ -65,7 +65,8 @@ GLOBAL_LIST_INIT(bitflags, list(1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 204
 #define UNUSED_TRANSIT_TURF_1	2
 #define CAN_BE_DIRTY_1			4 // If a turf can be made dirty at roundstart. This is also used in areas.
 #define NO_DEATHRATTLE_1		16 // Do not notify deadchat about any deaths that occur on this turf.
-#define NO_RUINS_1				32 //Blocks ruins spawning in the area
+#define NO_RUINS_1				32 //Blocks ruins spawning on the turf
+#define NO_LAVA_GEN_1				64 //Blocks lava rivers being generated on the turf
 //#define CHECK_RICOCHET_1	32		//Same thing as atom flag.
 
 /*

code/game/turfs/simulated/river.dm

@@ -7,11 +7,15 @@
 /proc/spawn_rivers(target_z, nodes = 4, turf_type = /turf/open/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)
 	var/list/river_nodes = list()
 	var/num_spawned = 0
-	while(num_spawned < nodes)
+	var/list/possible_locs = block(locate(min_x, min_y, target_z), locate(max_x, max_y, target_z))
-		var/turf/F = locate(rand(min_x, max_x), rand(min_y, max_y), target_z)
+	while(num_spawned < nodes && possible_locs.len)
-
+		var/turf/T = pick(possible_locs)
-		river_nodes += new /obj/effect/landmark/river_waypoint(F)
+		var/area/A = get_area(T)
-		num_spawned++
+		if(!istype(A, whitelist_area) || (T.flags_1 & NO_LAVA_GEN_1))
+			possible_locs -= T
+		else
+			river_nodes += new /obj/effect/landmark/river_waypoint(T)
+			num_spawned++
 
 	//make some randomly pathing rivers
 	for(var/A in river_nodes)
@@ -43,7 +47,7 @@
 
 			cur_turf = get_step(cur_turf, cur_dir)
 			var/area/new_area = get_area(cur_turf)
-			if(!istype(new_area, whitelist_area)) //Rivers will skip ruins
+			if(!istype(new_area, whitelist_area) || (cur_turf.flags_1 & NO_LAVA_GEN_1)) //Rivers will skip ruins
 				detouring = 0
 				cur_dir = get_dir(cur_turf, target_turf)
 				cur_turf = get_step(cur_turf, cur_dir)
@@ -71,7 +75,7 @@
 	for(var/F in RANGE_TURFS(1, src) - src)
 		var/turf/T = F
 		var/area/new_area = get_area(T)
-		if(!T || (T.density && !ismineralturf(T)) || istype(T, /turf/open/indestructible) || (whitelisted_area && !istype(new_area, whitelisted_area)))
+		if(!T || (T.density && !ismineralturf(T)) || istype(T, /turf/open/indestructible) || (whitelisted_area && !istype(new_area, whitelisted_area)) || (T.flags_1 & NO_LAVA_GEN_1) )
 			continue
 
 		if(!logged_turf_type && ismineralturf(T))

code/modules/mapping/mapping_helpers.dm

@@ -4,8 +4,8 @@
 
 /obj/effect/baseturf_helper //Set the baseturfs of every turf in the /area/ it is placed.
 	name = "baseturf editor"
-	icon = 'icons/obj/items_and_weapons.dmi'
+	icon = 'icons/effects/mapping_helpers.dmi'
-	icon_state = "syndballoon"
+	icon_state = ""
 	var/baseturf = null
 	layer = POINT_LAYER
 
@@ -72,7 +72,7 @@
 		return ..()
 	whitelist = typecacheof(whitelist)
 	return ..()
-	
+
 /obj/effect/baseturf_helper/picky/replace_baseturf(turf/thing)
 	if(!whitelist[thing.type])
 		return
@@ -86,18 +86,35 @@
 	name = "picky lavaland basalt baseturf helper"
 	baseturf = /turf/open/floor/plating/asteroid/basalt/lava_land_surface
 
+
+/obj/effect/mapping_helpers
+	icon = 'icons/effects/mapping_helpers.dmi'
+	icon_state = ""
+
+/obj/effect/mapping_helpers/Initialize()
+	..()
+	return INITIALIZE_HINT_QDEL
+
+//needs to do its thing before spawn_rivers() is called
+INITIALIZE_IMMEDIATE(/obj/effect/mapping_helpers/no_lava)
+
+/obj/effect/mapping_helpers/no_lava
+	icon_state = "no_lava"
+
+/obj/effect/mapping_helpers/no_lava/Initialize()
+	. = ..()
+	var/turf/T = get_turf(src)
+	T.flags_1 |= NO_LAVA_GEN_1
+
 //Contains the list of planetary z-levels defined by the planet_z helper.
 GLOBAL_LIST_EMPTY(z_is_planet)
 
 /obj/effect/mapping_helpers/planet_z //adds the map it is on to the z_is_planet list
 	name = "planet z helper"
-	icon = 'icons/obj/items_and_weapons.dmi'
-	icon_state = "syndballoon"
 	layer = POINT_LAYER
 
 /obj/effect/mapping_helpers/planet_z/Initialize()
 	. = ..()
 	var/turf/T = get_turf(src)
 	GLOB.z_is_planet["[T.z]"] = TRUE
-	return INITIALIZE_HINT_QDEL