New Away Site: Hiskyn Treasure Trove (#21324)

EDIT: This is complete and no longer a work in progress. I've tried to
make sure that everything is tested and working properly but if there
are issues please let me know.

This away site is intended to be a high risk, high reward, encounter.
I'm also attempting to increase its replayability by incorporating a
number of sections and submaps that will be newly generated each time.

Things added or changed:
- Additional traps and environmental hazards.
- Lava is now more deadly. It used to only set you on fire, now it will
burn you appropriately.
- Minor sprite fixes for uncommon elements for easier mapping; throwers,
step triggers.
- Map and associated files, submap json, landmarks, areas, ect.

---------

Signed-off-by: Evandorf <ej_denton@msn.com>
Co-authored-by: Kano <89972582+kano-dot@users.noreply.github.com>

code/modules/mining/mine_turf_types.dm

@@ -1,7 +1,7 @@
 // These are pricey, but damn do they look nice.
 /turf/simulated/lava
 	name = "lava"
-	desc = "Toasty."
+	desc = "Liquid rock; it can melt flesh from bone in seconds."
 	icon = 'icons/turf/smooth/lava.dmi'
 	icon_state = "smooth"
 	gender = PLURAL
@@ -37,11 +37,42 @@
 			else
 				L.bodytemperature = min(L.bodytemperature + 150, 1000)
 		else
-			L.IgniteMob(15)
-			return TRUE
+			var/target_zone
+			if(L.lying)
+				target_zone = pick(BP_ALL_LIMBS)
+			else
+				target_zone = pick(BP_L_FOOT, BP_R_FOOT, BP_L_LEG, BP_R_LEG)
+
+	//Try to apply the damage
+			var/success = L.apply_damage(50, DAMAGE_BURN, target_zone, used_weapon = src, armor_pen = 50)
+	//Apply weakness, so the victim doesn't walk into more lava
+			L.Weaken(10)
+			L.IgniteMob(3)
+
+	//If successfully applied, give the message
+			if(success)
+				if(!ishuman(L))
+					L.visible_message(SPAN_DANGER("[L] falls into \the [src]!"))
+					return
+
+				var/mob/living/carbon/human/human = L
+				var/obj/item/organ/organ = human.get_organ(target_zone)
+
+				if(isipc(L) || isrobot(L))
+					playsound(src, 'sound/weapons/smash.ogg', 100, TRUE)
+				else
+					playsound(src, 'sound/effects/meatsizzle.ogg', 100, TRUE)
+
+				human.visible_message(SPAN_DANGER("\The [human] slams into \the [src]!"),
+										SPAN_WARNING(FONT_LARGE(SPAN_DANGER("You step on \the [src], feel instant pain, and the skin on your [organ.name] begins to burn away!"))),
+										SPAN_WARNING("<b>You instant pain, and the skin on your [organ.name] begins to burn away!</b>"))
+		return TRUE
 	..()
 
 /turf/simulated/lava/Exited(atom/movable/AM, atom/newloc)
+	if(locate(/obj/structure/lattice/catwalk, src))	//should prevent people in lava from seeing messages about exiting lava
+		return TRUE
+
 	if(istype(AM, /mob/living))
 		var/mob/living/L = AM
 		if(!istype(newloc, /turf/simulated/lava))