ports all the tg junk for icemoon, not yet changed to make it all compile

code/game/objects/structures/flora.dm

@@ -350,11 +350,28 @@
 	icon = 'icons/obj/flora/rocks.dmi'
 	resistance_flags = FIRE_PROOF
 	density = TRUE
+	/// Itemstack that is dropped when a rock is mined with a pickaxe
+	var/obj/item/stack/mineResult = /obj/item/stack/ore/glass/basalt
+	/// Amount of the itemstack to drop
+	var/mineAmount = 20
 
 /obj/structure/flora/rock/Initialize()
 	. = ..()
 	icon_state = "[icon_state][rand(1,3)]"
 
+/obj/structure/flora/rock/attackby(obj/item/W, mob/user, params)
+	if(!mineResult || W.tool_behaviour != TOOL_MINING)
+		return ..()
+	if(flags_1 & NODECONSTRUCT_1)
+		return ..()
+	to_chat(user, "<span class='notice'>You start mining...</span>")
+	if(W.use_tool(src, user, 40, volume=50))
+		to_chat(user, "<span class='notice'>You finish mining the rock.</span>")
+		if(mineResult && mineAmount)
+			new mineResult(get_turf(src), mineAmount)
+		SSblackbox.record_feedback("tally", "pick_used_mining", 1, W.type)
+		qdel(src)
+
 /obj/structure/flora/rock/pile
 	icon_state = "lavarocks"
 	desc = "A pile of rocks."

code/game/objects/structures/icemoon/cave_entrance.dm

@@ -0,0 +1,178 @@
+GLOBAL_LIST_INIT(ore_probability, list(/obj/item/stack/ore/uranium = 50,
+						 			   /obj/item/stack/ore/iron = 100,
+						 			   /obj/item/stack/ore/plasma = 75,
+						 			   /obj/item/stack/ore/silver = 50,
+						 			   /obj/item/stack/ore/gold = 50,
+						 			   /obj/item/stack/ore/diamond = 25,
+						 			   /obj/item/stack/ore/bananium = 5,
+						 			   /obj/item/stack/ore/titanium = 75))
+
+/obj/structure/spawner/ice_moon
+	name = "cave entrance"
+	desc = "A hole in the ground, filled with monsters ready to defend it."
+	icon = 'icons/mob/nest.dmi'
+	icon_state = "hole"
+	faction = list("mining")
+	max_mobs = 3
+	max_integrity = 250
+	mob_types = list(/mob/living/simple_animal/hostile/asteroid/wolf)
+	move_resist = INFINITY
+	anchored = TRUE
+
+/obj/structure/spawner/ice_moon/Initialize()
+	. = ..()
+	clear_rock()
+
+/**
+  * Clears rocks around the spawner when it is created
+  *
+  */
+/obj/structure/spawner/ice_moon/proc/clear_rock()
+	for(var/turf/F in RANGE_TURFS(2, src))
+		if(abs(src.x - F.x) + abs(src.y - F.y) > 3)
+			continue
+		if(ismineralturf(F))
+			var/turf/closed/mineral/M = F
+			M.ScrapeAway(null, CHANGETURF_IGNORE_AIR)
+
+/obj/structure/spawner/ice_moon/deconstruct(disassembled)
+	destroy_effect()
+	drop_loot()
+	return ..()
+
+/**
+  * Effects and messages created when the spawner is destroyed
+  *
+  */
+/obj/structure/spawner/ice_moon/proc/destroy_effect()
+	playsound(loc,'sound/effects/explosionfar.ogg', 200, TRUE)
+	visible_message("<span class='boldannounce'>[src] collapses, sealing everything inside!</span>\n<span class='warning'>Ores fall out of the cave as it is destroyed!</span>")
+
+/**
+  * Drops items after the spawner is destroyed
+  *
+  */
+/obj/structure/spawner/ice_moon/proc/drop_loot()
+	for(var/type in GLOB.ore_probability)
+		var/chance = GLOB.ore_probability[type]
+		if(!prob(chance))
+			continue
+		new type(loc, rand(5, 10))
+
+/obj/structure/spawner/ice_moon/polarbear
+	max_mobs = 1
+	spawn_time = 60 SECONDS
+	mob_types = list(/mob/living/simple_animal/hostile/asteroid/polarbear)
+
+/obj/structure/spawner/ice_moon/polarbear/clear_rock()
+	for(var/turf/F in RANGE_TURFS(1, src))
+		if(ismineralturf(F))
+			var/turf/closed/mineral/M = F
+			M.ScrapeAway(null, CHANGETURF_IGNORE_AIR)
+
+/obj/structure/spawner/ice_moon/demonic_portal
+	name = "demonic portal"
+	desc = "A portal that goes to another world, normal creatures couldn't survive there."
+	icon_state = "nether"
+	mob_types = list(/mob/living/simple_animal/hostile/asteroid/ice_demon)
+	light_range = 1
+	light_color = LIGHT_COLOR_RED
+
+/obj/structure/spawner/ice_moon/demonic_portal/clear_rock()
+	for(var/turf/F in RANGE_TURFS(3, src))
+		if(abs(src.x - F.x) + abs(src.y - F.y) > 5)
+			continue
+		if(ismineralturf(F))
+			var/turf/closed/mineral/M = F
+			M.ScrapeAway(null, CHANGETURF_IGNORE_AIR)
+
+/obj/structure/spawner/ice_moon/demonic_portal/destroy_effect()
+	new /obj/effect/collapsing_demonic_portal(loc)
+
+/obj/structure/spawner/ice_moon/demonic_portal/drop_loot()
+	return
+
+/obj/structure/spawner/ice_moon/demonic_portal/ice_whelp
+	mob_types = list(/mob/living/simple_animal/hostile/asteroid/ice_whelp)
+
+/obj/structure/spawner/ice_moon/demonic_portal/snowlegion
+	mob_types = list(/mob/living/simple_animal/hostile/asteroid/hivelord/legion/snow)
+
+/obj/effect/collapsing_demonic_portal
+	name = "collapsing demonic portal"
+	desc = "It's slowly fading!"
+	layer = TABLE_LAYER
+	icon = 'icons/mob/nest.dmi'
+	icon_state = "nether"
+	anchored = TRUE
+	density = TRUE
+
+/obj/effect/collapsing_demonic_portal/Initialize()
+	. = ..()
+	playsound(loc,'sound/effects/tendril_destroyed.ogg', 200, FALSE, 50, TRUE, TRUE)
+	visible_message("<span class='boldannounce'>[src] begins to collapse, cutting it off from this world!</span>")
+	animate(src, transform = matrix().Scale(0, 1), alpha = 50, time = 5 SECONDS)
+	addtimer(CALLBACK(src, .proc/collapse), 5 SECONDS)
+
+/obj/effect/collapsing_demonic_portal/proc/collapse()
+	visible_message("<span class='warning'>Something slips out of [src]!</span>")
+	var/loot = rand(1, 28)
+	switch(loot)
+		if(1)
+			new /obj/item/clothing/suit/space/hardsuit/cult(loc)
+		if(2)
+			new /obj/item/clothing/glasses/godeye(loc)
+		if(3)
+			new /obj/item/reagent_containers/glass/bottle/potion/flight(loc)
+		if(4)
+			new /obj/item/organ/heart/cursed/wizard(loc)
+		if(5)
+			new /obj/item/jacobs_ladder(loc)
+		if(6)
+			new /obj/item/rod_of_asclepius(loc)
+		if(7)
+			new /obj/item/warp_cube/red(loc)
+		if(8)
+			new /obj/item/wisp_lantern(loc)
+		if(9)
+			new /obj/item/immortality_talisman(loc)
+		if(10)
+			new /obj/item/book/granter/spell/summonitem(loc)
+		if(11)
+			new /obj/item/clothing/neck/necklace/memento_mori(loc)
+		if(12)
+			new /obj/item/borg/upgrade/modkit/lifesteal(loc)
+			new /obj/item/bedsheet/cult(loc)
+		if(13)
+			new /obj/item/disk/design_disk/modkit_disc/mob_and_turf_aoe(loc)
+		if(14)
+			new /obj/item/disk/design_disk/modkit_disc/bounty(loc)
+		if(15)
+			new /obj/item/ship_in_a_bottle(loc)
+			new /obj/item/oar(loc)
+		if(16)
+			new /obj/item/seeds/gatfruit(loc)
+		if(17)
+			new /obj/item/reagent_containers/food/drinks/drinkingglass/filled/nuka_cola(loc)
+		if(18)
+			new /obj/item/assembly/signaler/anomaly/bluespace(loc)
+		if(19)
+			new /obj/item/disk/design_disk/modkit_disc/resonator_blast(loc)
+		if(20)
+			new /obj/item/disk/design_disk/modkit_disc/rapid_repeater(loc)
+		if(21)
+			new /obj/item/slimepotion/transference(loc)
+		if(22)
+			new /obj/item/slime_extract/adamantine(loc)
+		if(23)
+			new /obj/item/weldingtool/abductor(loc)
+		if(24)
+			new /obj/structure/elite_tumor(loc)
+		if(25)
+			new /mob/living/simple_animal/hostile/retaliate/clown/clownhulk(loc)
+		if(26)
+			new /obj/item/clothing/shoes/winterboots/ice_boots(loc)
+		if(27)
+			new /obj/item/book/granter/spell/sacredflame(loc)
+		if(28)
+			new /mob/living/simple_animal/hostile/megafauna/blood_drunk_miner/doom(loc)

code/game/objects/structures/lavaland/necropolis_tendril.dm

@@ -25,6 +25,9 @@
 /obj/structure/spawner/lavaland/legion
 	mob_types = list(/mob/living/simple_animal/hostile/asteroid/hivelord/legion/tendril)
 
+/obj/structure/spawner/lavaland/icewatcher
+	mob_types = list(/mob/living/simple_animal/hostile/asteroid/basilisk/watcher/icewing)
+
 GLOBAL_LIST_INIT(tendrils, list())
 /obj/structure/spawner/lavaland/Initialize()
 	. = ..()
@@ -94,4 +97,4 @@ GLOBAL_LIST_INIT(tendrils, list())
 	for(var/turf/T in range(2,src))
 		if(!T.density)
 			T.TerraformTurf(/turf/open/chasm/lavaland, /turf/open/chasm/lavaland, flags = CHANGETURF_INHERIT_AIR)
-	qdel(src)
+	qdel(src)