cmss13-devs · Unknownity · Oct 27, 2022 · Dec 19, 2022 · Dec 19, 2022 · Dec 22, 2022
diff --git a/code/__DEFINES/mobs.dm b/code/__DEFINES/mobs.dm
@@ -326,6 +326,7 @@
 // Burrower strain flags
 #define BURROWER_NORMAL "Normal"
 #define BURROWER_TREMOR "Tremor"
+#define BURROWER_IMPALER "Impaler"
 
 // Sentinel strain flags
 #define SENTINEL_NORMAL "Normal"

diff --git a/code/__DEFINES/movement.dm b/code/__DEFINES/movement.dm
@@ -43,6 +43,7 @@
 #define PASS_HIGH_OVER_ONLY (1<<15) // For atoms that require a high toss to go over it, should only really be using this for flags_can_pass_x vars
 #define PASS_BUILDING_ONLY (1<<16) // For throwing stuff over walls (that lead to open ceilings)
 #define PASS_CRUSHER_CHARGE (1<<17) // For crusher charge specifically
+#define PASS_BURROWED (1<<18)     // For burrowed mobs to pass though wired and normal barricades along with any structure specifically
 
 // Pass flag groups
 #define PASS_OVER (PASS_OVER_THROW_ITEM|PASS_OVER_THROW_MOB|PASS_OVER_FIRE|PASS_OVER_ACID_SPRAY)

diff --git a/code/__DEFINES/traits.dm b/code/__DEFINES/traits.dm
@@ -179,6 +179,8 @@
 #define TRAIT_ABILITY_NO_PLASMA_TRANSFER "t_ability_no_plasma_transfer"
 /// Shows that the xeno queen is on ovi
 #define TRAIT_ABILITY_OVIPOSITOR "t_ability_ovipositor"
+/// Used for burrowed mobs, prevent's SG/sentrys/claymores from autofiring.
+#define TRAIT_ABILITY_BURROWED "t_ability_burrowed"
 
 //-- item traits --
 // TOOL TRAITS
@@ -228,7 +230,8 @@ GLOBAL_LIST_INIT(mob_traits, list(
 	TRAIT_TWOBORE_TRAINING,
 	TRAIT_LEADERSHIP,
 	TRAIT_DEXTROUS,
-	TRAIT_REAGENT_SCANNER
+	TRAIT_REAGENT_SCANNER,
+	TRAIT_ABILITY_BURROWED
 ))
 
 /*

diff --git a/code/_onclick/hud/screen_objects.dm b/code/_onclick/hud/screen_objects.dm
@@ -557,7 +557,7 @@
 	if(!user.hive.living_xeno_queen)
 		to_chat(user, SPAN_WARNING("Your hive doesn't have a living queen!"))
 		return FALSE
-	if(user.burrow || user.is_mob_incapacitated() || user.buckled)
+	if(user.burrow || user.is_mob_incapacitated() || user.buckled || user.fortify)
 		return FALSE
 	user.overwatch(user.hive.living_xeno_queen)
 

diff --git a/code/game/machinery/doors/airlock_control.dm b/code/game/machinery/doors/airlock_control.dm
@@ -11,7 +11,7 @@
 /obj/structure/machinery/door/airlock/initialize_pass_flags(datum/pass_flags_container/PF)
 	..()
 	if (PF)
-		PF.flags_can_pass_all = NONE
+		PF.flags_can_pass_all = PASS_BURROWED
 
 /obj/structure/machinery/door/airlock/proc/can_radio()
 	if(!arePowerSystemsOn())

diff --git a/code/game/machinery/doors/airlock_types.dm b/code/game/machinery/doors/airlock_types.dm
@@ -827,6 +827,11 @@
 /obj/structure/machinery/door/airlock/dropship_hatch/ex_act(severity)
 	return
 
+/obj/structure/machinery/door/airlock/dropship_hatch/initialize_pass_flags(datum/pass_flags_container/PF)
+	..()
+	if (PF)
+		PF.flags_can_pass_all = NONE
+
 /obj/structure/machinery/door/airlock/dropship_hatch/unlock()
 	if(is_reserved_level(z)) // in flight
 		return

diff --git a/code/game/machinery/doors/door.dm b/code/game/machinery/doors/door.dm
@@ -56,7 +56,7 @@
 /obj/structure/machinery/door/initialize_pass_flags(datum/pass_flags_container/PF)
 	..()
 	if (PF)
-		PF.flags_can_pass_all = NONE
+		PF.flags_can_pass_all = PASS_BURROWED
 
 /obj/structure/machinery/door/proc/handle_multidoor()
 	if(width > 1)

diff --git a/code/game/machinery/doors/multi_tile.dm b/code/game/machinery/doors/multi_tile.dm
@@ -275,6 +275,10 @@
 /obj/structure/machinery/door/airlock/multi_tile/almayer/dropshiprear/ex_act(severity)
 	return
 
+/obj/structure/machinery/door/airlock/multi_tile/almayer/dropshiprear/initialize_pass_flags(datum/pass_flags_container/PF)
+	..()
+	if (PF)
+		PF.flags_can_pass_all = NONE
 
 /obj/structure/machinery/door/airlock/multi_tile/almayer/dropshiprear/unlock()
 	if(is_reserved_level(z))

diff --git a/code/game/machinery/doors/poddoor.dm b/code/game/machinery/doors/poddoor.dm
@@ -300,6 +300,11 @@
 	unslashable = TRUE
 	unacidable = TRUE
 
+/obj/structure/machinery/door/poddoor/shutters/almayer/locked/initialize_pass_flags(datum/pass_flags_container/PF)
+	..()
+	if (PF)
+		PF.flags_can_pass_all = NONE
+
 /obj/structure/machinery/door/poddoor/almayer/locked/attackby(obj/item/C as obj, mob/user as mob)
 	if(HAS_TRAIT(C, TRAIT_TOOL_CROWBAR))
 		return

diff --git a/code/game/machinery/doors/shutters.dm b/code/game/machinery/doors/shutters.dm
@@ -131,6 +131,11 @@
 /obj/structure/machinery/door/poddoor/shutters/almayer/pressure/ex_act(severity)
 	return
 
+/obj/structure/machinery/door/poddoor/shutters/almayer/pressure/initialize_pass_flags(datum/pass_flags_container/PF)
+	..()
+	if (PF)
+		PF.flags_can_pass_all = NONE
+
 /obj/structure/machinery/door/poddoor/shutters/almayer/uniform_vendors
 	name = "\improper Uniform Vendor Shutters"
 	id = "bot_uniforms"

diff --git a/code/game/objects/effects/aliens.dm b/code/game/objects/effects/aliens.dm
@@ -482,6 +482,18 @@
 /obj/effect/xenomorph/xeno_telegraph/brown/lash
 	icon_state = "xeno_telegraph_lash"
 
+/obj/effect/xenomorph/ground_spike
+	name = "???"
+	desc = ""
+	icon_state = "ground_spike"
+	mouse_opacity = FALSE
+	var/mob/living/carbon/xenomorph/source_xeno = null
+
+/obj/effect/xenomorph/ground_spike/New(loc, source_xeno = null, ttl = 10)
+	if(isxeno(source_xeno))
+		src.source_xeno = source_xeno
+	..(loc)
+	QDEL_IN(src, ttl)
 
 
 /obj/effect/xenomorph/acid_damage_delay

diff --git a/code/game/objects/items/explosives/mine.dm b/code/game/objects/items/explosives/mine.dm
@@ -198,6 +198,8 @@
 		return
 	if(L.get_target_lock(iff_signal) || isrobot(L))
 		return
+	if(HAS_TRAIT(L, TRAIT_ABILITY_BURROWED))
+		return
 	L.visible_message(SPAN_DANGER("[icon2html(src, viewers(src))] The [name] clicks as [L] moves in front of it."), \
 	SPAN_DANGER("[icon2html(src, L)] The [name] clicks as you move in front of it."), \
 	SPAN_DANGER("You hear a click."))

diff --git a/code/game/objects/structures.dm b/code/game/objects/structures.dm
@@ -20,6 +20,11 @@
 	if(climbable)
 		verbs += /obj/structure/proc/climb_on
 
+/obj/structure/initialize_pass_flags(datum/pass_flags_container/PF)
+	..()
+	if (PF)
+		PF.flags_can_pass_all = PASS_BURROWED
+
 /obj/structure/Destroy()
 	//before ..() because the parent does loc = null
 	for(var/atom/movable/A in contents_recursive())

diff --git a/code/game/objects/structures/barricade/barricade.dm b/code/game/objects/structures/barricade/barricade.dm
@@ -45,7 +45,7 @@
 /obj/structure/barricade/initialize_pass_flags(datum/pass_flags_container/PF)
 	..()
 	if (PF)
-		PF.flags_can_pass_all = NONE
+		PF.flags_can_pass_all = PASS_BURROWED
 		PF.flags_can_pass_front = NONE
 		PF.flags_can_pass_behind = PASS_OVER^(PASS_OVER_ACID_SPRAY|PASS_OVER_THROW_MOB)
 	flags_can_pass_front_temp = PASS_OVER_THROW_MOB

diff --git a/code/modules/defenses/sentry.dm b/code/modules/defenses/sentry.dm
@@ -367,7 +367,7 @@
 				targets.Remove(A)
 				continue
 
-			if(M.get_target_lock(faction_group) || M.invisibility)
+			if(M.get_target_lock(faction_group) || M.invisibility || HAS_TRAIT(M, TRAIT_ABILITY_BURROWED))
 				if(M == target)
 					target = null
 				targets.Remove(M)

diff --git a/code/modules/mob/living/carbon/xenomorph/XenoAttacks.dm b/code/modules/mob/living/carbon/xenomorph/XenoAttacks.dm
@@ -93,6 +93,9 @@
 	if (M.fortify || M.burrow)
 		return XENO_NO_DELAY_ACTION
 
+	if(HAS_TRAIT(src, TRAIT_ABILITY_BURROWED))
+		return XENO_NO_DELAY_ACTION
+
 	if(islarva(M)) //Larvas can't eat people
 		M.visible_message(SPAN_DANGER("[M] nudges its head against \the [src]."), \
 		SPAN_DANGER("You nudge your head against \the [src]."), null, null, CHAT_TYPE_XENO_FLUFF)

diff --git a/code/modules/mob/living/carbon/xenomorph/Xenomorph.dm b/code/modules/mob/living/carbon/xenomorph/Xenomorph.dm
@@ -745,6 +745,8 @@
 	if(SEND_SIGNAL(AM, COMSIG_MOVABLE_XENO_START_PULLING, src) & COMPONENT_ALLOW_PULL)
 		return do_pull(AM, lunge, no_msg)
 
+	if(burrow)
+		return
 	if(!isliving(AM))
 		return FALSE
 	var/mob/living/L = AM

diff --git a/code/modules/mob/living/carbon/xenomorph/abilities/burrower/burrower_abilities.dm b/code/modules/mob/living/carbon/xenomorph/abilities/burrower/burrower_abilities.dm
@@ -11,7 +11,7 @@
 
 /datum/action/xeno_action/activable/burrow/use_ability(atom/A)
 	var/mob/living/carbon/xenomorph/X = owner
-	if(X.burrow)
+	if(X.burrow && X.mutation_type != BURROWER_IMPALER)
 		X.tunnel(get_turf(A))
 	else
 		X.burrow()
@@ -29,3 +29,68 @@
 	var/mob/living/carbon/xenomorph/X = owner
 	X.tremor()
 	return ..()
+
+//Spiker abilities
+/datum/action/xeno_action/onclick/burrow
+	name = "Burrow"
+	action_icon_state = "agility_on"
+	ability_name = "burrow"
+	macro_path = /datum/action/xeno_action/verb/verb_burrow
+	action_type = XENO_ACTION_CLICK
+	ability_primacy = XENO_PRIMARY_ACTION_3
+
+/datum/action/xeno_action/onclick/burrow/use_ability(atom/A)
+	var/mob/living/carbon/xenomorph/X = owner
+	if(X.burrow && X.mutation_type != BURROWER_IMPALER)
+		X.tunnel(get_turf(A))
+	else
+		X.burrow()
+
+/datum/action/xeno_action/activable/burrowed_spikes
+	name = "Burrowed Spikes"
+	ability_name = "burrowed spikes"
+	action_icon_state = "burrowed_spikes"
+	macro_path = /datum/action/xeno_action/verb/verb_burrowed_spikes
+	action_type = XENO_ACTION_CLICK
+	ability_primacy = XENO_PRIMARY_ACTION_1
+	xeno_cooldown = 8 SECONDS
+	plasma_cost = 50
+
+	// Config
+	var/base_damage = 35
+	var/chain_separation_delay = 0.2 SECONDS //Delay between each tile hit
+	var/max_distance = 4
+	var/reinforced_range_bonus = 2
+	var/reinforced_damage_bonus = 30
+
+/datum/action/xeno_action/activable/sunken_tail
+	name = "Sunken Tail"
+	ability_name = "sunken tail"
+	action_icon_state = "sunken_tail"
+	macro_path = /datum/action/xeno_action/verb/verb_sunken_tail
+	action_type = XENO_ACTION_CLICK
+	ability_primacy = XENO_PRIMARY_ACTION_2
+	xeno_cooldown = 13 SECONDS
+	plasma_cost = 100
+
+	// Config
+	var/base_damage = 60
+	var/windup_delay = 0.8 SECONDS
+	var/max_distance = 7
+	var/reinforced_range_bonus = 2
+	var/reinforced_damage_bonus = 30
+	var/reinforced_spread_range = 2
+
+/datum/action/xeno_action/onclick/ensconce
+	name = "Ensconce"
+	ability_name = "ensconce"
+	action_icon_state = "ensconce"
+	macro_path = /datum/action/xeno_action/verb/verb_ensconce
+	action_type = XENO_ACTION_CLICK
+	ability_primacy = XENO_PRIMARY_ACTION_4
+	xeno_cooldown = 3 SECONDS
+	plasma_cost = 0
+
+	// Config
+	var/windup_delay = 1 SECONDS
+	var/reinforced_vision_range = 10
diff --git a/code/modules/mob/living/carbon/xenomorph/abilities/burrower/burrower_macros.dm b/code/modules/mob/living/carbon/xenomorph/abilities/burrower/burrower_macros.dm
@@ -4,3 +4,25 @@
 	set hidden = TRUE
 	var/action_name = "Tremor (100)"
 	handle_xeno_macro(src, action_name)
+
+//Spiker macros
+/datum/action/xeno_action/verb/verb_burrowed_spikes()
+	set category = "Alien"
+	set name = "Burrowed Spikes"
+	set hidden = 1
+	var/action_name = "Burrowed Spikes"
+	handle_xeno_macro(src, action_name) 
+
+/datum/action/xeno_action/verb/verb_sunken_tail()
+	set category = "Alien"
+	set name = "Sunken Tail"
+	set hidden = 1
+	var/action_name = "Sunken Tail"
+	handle_xeno_macro(src, action_name) 
+
+/datum/action/xeno_action/verb/verb_ensconce()
+	set category = "Alien"
+	set name = "Ensconce"
+	set hidden = 1
+	var/action_name = "Ensconce"
+	handle_xeno_macro(src, action_name)