/tg/ Status effects part 1 - fluid status updates (#4828)

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CM Dev figured it out 9 years ago and nobody listened and kept tacking
illogical conditions

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# About the pull request

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Builds on previous "prelude" PRs in the following steps:
 * Ports /tg/ body_position and mobility_flags
* Fixes some interaction requirements to use stun/mobility rather than
lying/knocked_down
* Ports /tg/ granular status updates, ie. status propagating through
handlers and signals. This includes changes to resting, buckling, and
lying down human transforms.
 * Wires our status effect system to it directly
* Removes `update_canmove` from existence completely as not needed
anymore

Because step 1 and 2 require updating all the gameplay logic using them,
this PR modifies a lot of files.

Part 2 will move the actual status effects to /tg/ status_effects,
resolving our timing problems.

# Testing Photographs and Procedure
<!-- Include any screenshots/videos/debugging steps of the modified code
functioning successfully, ideally including edge cases. -->
<details>
<summary>Testing Checklist!</summary>

- [x] Basic Movement
- [x] Admin Freeze Prevents Movement
- [x] Resting, Getting Up
- [x] Xenos change icon when resting
- [x] Buckling, including bed rotation and propelled chairs
- [x] Crawling Movement including sprite movement
- [x] Aggressive, Choke Grabbing, and Fireman carry apply rotation
- [x] Xeno Pounce and Abduct properly freeze both target and caster 
- [x] Double dropship seats density update
- [x] Explosive knockout on Humans
- [x] Xeno burrow density and movement interactions
- [x] Xeno nest interactions, specifically confirm density changes work
- [ ] Xeno nest bullet hits doublecheck with snowflake trait check
- [x] Combat Xeno ~~knockouts~~ knockdown and sprite updates
- [x] ~~Sleeping, Waking up, Usage of items while sleeping~~ - Can't
really test this we have almost no sleep code
- [x] Arbitrary buckling rotations
- [x] Admin-set transforms work with buckling/lying
- [ ] All the broken objects that will only be found out in Testmerge

</details>


# Changelog

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:cl:
code: Ported basic /tg/ Status Backend.
add: Human transform changes such as lying down, knock down, buckling,
are now animated.
fix: Some statuses will now take effect immediately instead of waiting
for a life tick, notably Resting.
balance: Many interaction requirements were changed to eg. fail upon
stuns rather than if lying down.
/:cl:

<!-- Both :cl:'s are required for the changelog to work! -->

code/__DEFINES/dcs/signals/atom/mob/living/signals_living.dm

@@ -33,3 +33,8 @@
 /// From /mob/living/Collide(): (atom/A)
 #define COMSIG_LIVING_PRE_COLLIDE "living_pre_collide"
 	#define COMPONENT_LIVING_COLLIDE_HANDLED (1<<0)
+
+///from base of mob/living/set_buckled(): (new_buckled)
+#define COMSIG_LIVING_SET_BUCKLED "living_set_buckled"
+///from base of mob/living/set_body_position()
+#define COMSIG_LIVING_SET_BODY_POSITION  "living_set_body_position"

code/__DEFINES/dcs/signals/atom/mob/signals_mob.dm

@@ -37,10 +37,6 @@
 #define COMSIG_MOB_FIRED_GUN_ATTACHMENT "mob_fired_gun_attachment"
 /// From /mob/proc/death
 #define COMSIG_MOB_DEATH "mob_death"
-/// From /mob/proc/update_canmove()
-#define COMSIG_MOB_GETTING_UP "mob_getting_up"
-/// From /mob/proc/update_canmove()
-#define COMSIG_MOB_KNOCKED_DOWN "mob_knocked_down"
 /// For when a mob is dragged
 #define COMSIG_MOB_DRAGGED "mob_dragged"
 /// From /obj/item/proc/unequipped()
@@ -86,8 +82,6 @@
 //from /mob/proc/on_deafness_loss()
 #define COMSIG_MOB_REGAINED_HEARING "mob_regained_hearing"
 
-#define COMSIG_MOB_POST_UPDATE_CANMOVE "mob_can_move"
-
 #define COMSIG_ATTEMPT_MOB_PULL "attempt_mob_pull"
 	#define COMPONENT_CANCEL_MOB_PULL (1<<0)
 

code/__DEFINES/mobs.dm

@@ -419,3 +419,31 @@ GLOBAL_LIST_INIT(default_xeno_onmob_icons, list(
 #define CORE_LIMBS list("chest","head","groin")
 
 #define SYMPTOM_ACTIVATION_PROB 3
+
+// Body position defines.
+/// Mob is standing up, usually associated with lying_angle value of 0.
+#define STANDING_UP 0
+/// Mob is lying down, usually associated with lying_angle values of 90 or 270.
+#define LYING_DOWN 1
+
+/// Possible value of [/atom/movable/buckle_lying]. If set to a different (positive-or-zero) value than this, the buckling thing will force a lying angle on the buckled.
+#define NO_BUCKLE_LYING -1
+
+// ====================================
+// /mob/living  /tg/  mobility_flags
+// These represent in what capacity the mob is capable of moving
+// Because porting this is underway, NOT ALL FLAGS ARE CURRENTLY IN.
+
+/// can move
+#define MOBILITY_MOVE (1<<0)
+/// can, and is, standing up
+#define MOBILITY_STAND (1<<1)
+/// can rest
+#define MOBILITY_REST (1<<7)
+/// can lie down
+#define MOBILITY_LIEDOWN (1<<8)
+
+#define MOBILITY_FLAGS_DEFAULT (MOBILITY_MOVE | MOBILITY_STAND)
+#define MOBILITY_FLAGS_CARBON_DEFAULT (MOBILITY_MOVE | MOBILITY_STAND | MOBILITY_REST | MOBILITY_LIEDOWN)
+#define MOBILITY_FLAGS_REST_CAPABLE_DEFAULT (MOBILITY_MOVE | MOBILITY_STAND | MOBILITY_REST | MOBILITY_LIEDOWN)
+

code/__DEFINES/traits.dm

@@ -143,10 +143,18 @@
 // #define TRAIT_X "t_x"
 
 //-- mob traits --
-/// Prevents voluntary movement.
-#define TRAIT_IMMOBILIZED "immobilized"
 /// Apply this to make a mob not dense, and remove it when you want it to no longer make them undense, other sorces of undesity will still apply. Always define a unique source when adding a new instance of this!
 #define TRAIT_UNDENSE "undense"
+/// Forces the user to stay unconscious.
+#define TRAIT_KNOCKEDOUT "knockedout"
+/// Prevents voluntary movement.
+#define TRAIT_IMMOBILIZED "immobilized"
+/// Prevents voluntary standing or staying up on its own.
+#define TRAIT_FLOORED "floored"
+/// Forces user to stay standing
+#define TRAIT_FORCED_STANDING "forcedstanding"
+/// Stuns preventing movement and using objects but without further impairement
+#define TRAIT_INCAPACITATED "incapacitated"
 /// Apply this to identify a mob as merged with weeds
 #define TRAIT_MERGED_WITH_WEEDS "merged_with_weeds"
 
@@ -298,7 +306,10 @@ GLOBAL_LIST_INIT(mob_traits, list(
 */
 GLOBAL_LIST_INIT(traits_by_type, list(
 	/mob = list(
+		"TRAIT_KNOCKEDOUT" = TRAIT_KNOCKEDOUT,
 		"TRAIT_IMMOBILIZED" = TRAIT_IMMOBILIZED,
+		"TRAIT_INCAPACITATED" = TRAIT_INCAPACITATED,
+		"TRAIT_FLOORED" = TRAIT_FLOORED,
 		"TRAIT_UNDENSE" = TRAIT_UNDENSE,
 		"TRAIT_YAUTJA_TECH" = TRAIT_YAUTJA_TECH,
 		"TRAIT_SUPER_STRONG" = TRAIT_SUPER_STRONG,
@@ -416,13 +427,39 @@ GLOBAL_LIST(trait_name_map)
 //Status trait coming from clothing.
 #define TRAIT_SOURCE_CLOTHING "t_s_clothing"
 
-/// traits associated with actively interacted machinery
-#define INTERACTION_TRAIT "interaction"
+/// trait associated to being buckled
+#define BUCKLED_TRAIT "buckled" // Yes the name doesn't conform. /tg/ appears to have changed naming style inbetween
+/// trait source when an effect is coming from a fakedeath effect (refactor this)
+#define FAKEDEATH_TRAIT "fakedeath"
+/// trait source where a condition comes from body state
+#define BODY_TRAIT "body"
+/// Trait associated to lying down (having a [lying_angle] of a different value than zero).
+#define LYING_DOWN_TRAIT "lying-down"
+/// trait associated to a stat value or range of
+#define STAT_TRAIT "stat"
+/// trait effect related to the queen ovipositor
+#define OVIPOSITOR_TRAIT "ovipositor"
+/// trait associated to being held in a chokehold
+#define CHOKEHOLD_TRAIT "chokehold"
 /// trait effect related to active specialist gear
 #define SPECIALIST_GEAR_TRAIT "specialist_gear"
 /// traits associated with usage of snowflake dropship double seats
 #define DOUBLE_SEATS_TRAIT "double_seats"
 /// traits associated with xeno on-ground weeds
 #define XENO_WEED_TRAIT "xeno_weed"
+/// traits associated with actively interacted machinery
+#define INTERACTION_TRAIT "interaction"
+/// traits bound by stunned status effects
+#define STUNNED_TRAIT "stunned"
+/// traits bound by knocked_down status effect
+#define KNOCKEDDOWN_TRAIT "knockeddown"
+/// traits bound by knocked_out status effect
+#define KNOCKEDOUT_TRAIT "knockedout"
+/// traits from being pounced
+#define POUNCED_TRAIT "pounced"
+/// traits from step_triggers on the map
+#define STEP_TRIGGER_TRAIT "step_trigger"
+/// traits from hacked machine interactions
+#define HACKED_TRAIT "hacked"
 /// traits from chloroform usage
 #define CHLOROFORM_TRAIT "chloroform"

code/__HELPERS/animations.dm

@@ -0,0 +1,2 @@
+/// The duration of the animate call in mob/living/update_transform
+#define UPDATE_TRANSFORM_ANIMATION_TIME (0.2 SECONDS)

code/__HELPERS/status_effects.dm

@@ -0,0 +1 @@
+#define TRAIT_STATUS_EFFECT(effect_id) "[effect_id]-trait"

code/__HELPERS/unsorted.dm

@@ -1089,15 +1089,15 @@ GLOBAL_DATUM(action_purple_power_up, /image)
 		target_orig_turf = get_turf(target)
 	var/obj/user_holding = busy_user.get_active_hand()
 	var/obj/target_holding
-	var/cur_user_lying = busy_user.lying
+	var/cur_user_lying = busy_user.body_position
 	var/cur_target_lying
 	var/expected_total_time = delayfraction*numticks
 	var/time_remaining = expected_total_time
 
 	if(has_target && istype(T))
 		cur_target_zone_sel = T.zone_selected
 		target_holding = T.get_active_hand()
-		cur_target_lying = T.lying
+		cur_target_lying = T.body_position
 
 	. = TRUE
 	for(var/i in 1 to numticks)
@@ -1121,13 +1121,13 @@ GLOBAL_DATUM(action_purple_power_up, /image)
 		)
 			. = FALSE
 			break
-		if(user_flags & INTERRUPT_KNOCKED_DOWN && busy_user.knocked_down || \
-			target_is_mob && (target_flags & INTERRUPT_KNOCKED_DOWN && T.knocked_down)
+		if(user_flags & INTERRUPT_KNOCKED_DOWN && HAS_TRAIT(busy_user, TRAIT_FLOORED) || \
+			target_is_mob && (target_flags & INTERRUPT_KNOCKED_DOWN && HAS_TRAIT(T, TRAIT_FLOORED))
 		)
 			. = FALSE
 			break
-		if(user_flags & INTERRUPT_STUNNED && busy_user.stunned || \
-			target_is_mob && (target_flags & INTERRUPT_STUNNED && T.stunned)
+		if(user_flags & INTERRUPT_STUNNED && HAS_TRAIT(busy_user, TRAIT_INCAPACITATED)|| \
+			target_is_mob && (target_flags & INTERRUPT_STUNNED && HAS_TRAIT(T, TRAIT_INCAPACITATED))
 		)
 			. = FALSE
 			break
@@ -1201,8 +1201,8 @@ GLOBAL_DATUM(action_purple_power_up, /image)
 		)
 			. = FALSE
 			break
-		if(user_flags & INTERRUPT_CHANGED_LYING && busy_user.lying != cur_user_lying || \
-			target_is_mob && (target_flags & INTERRUPT_CHANGED_LYING && T.lying != cur_target_lying)
+		if(user_flags & INTERRUPT_CHANGED_LYING && busy_user.body_position != cur_user_lying || \
+			target_is_mob && (target_flags & INTERRUPT_CHANGED_LYING && T.body_position != cur_target_lying)
 		)
 			. = FALSE
 			break

code/_globalvars/bitfields.dm

@@ -369,6 +369,13 @@ DEFINE_BITFIELD(mob_flags, list(
 	"NOBIOSCAN" = NOBIOSCAN,
 ))
 
+DEFINE_BITFIELD(mobility_flags, list(
+	"MOVE" = MOBILITY_MOVE,
+	"STAND" = MOBILITY_STAND,
+	"REST" = MOBILITY_REST,
+	"LIEDOWN" = MOBILITY_LIEDOWN
+))
+
 DEFINE_BITFIELD(flags, list(
 	"NO_BLOOD" = NO_BLOOD,
 	"NO_BREATHE" = NO_BREATHE,

code/_onclick/human.dm

@@ -64,7 +64,7 @@
 
 /mob/living/carbon/human/UnarmedAttack(atom/A, proximity, click_parameters)
 
-	if(lying) //No attacks while laying down
+	if(body_position == LYING_DOWN) //No attacks while laying down
 		return 0
 
 	var/obj/item/clothing/gloves/G = gloves // not typecast specifically enough in defines
@@ -88,7 +88,7 @@
 /atom/proc/attack_hand(mob/user)
 	return
 
-/mob/living/carbon/human/MouseDrop_T(atom/dropping, mob/user)
+/mob/living/carbon/human/MouseDrop_T(atom/dropping, mob/living/user)
 	if(user != src)
 		return . = ..()
 
@@ -153,6 +153,4 @@
 	target.Move(user.loc, get_dir(target.loc, user.loc))
 	target.update_transform(TRUE)
 
-	target.update_canmove()
-
 

code/_onclick/ventcrawl.dm

@@ -45,7 +45,7 @@
 		to_chat(src, SPAN_WARNING("You must be conscious to do this!"))
 		return
 
-	if(lying)
+	if(is_mob_incapacitated())
 		to_chat(src, SPAN_WARNING("You can't vent crawl while you're stunned!"))
 		return
 
@@ -88,7 +88,7 @@
 			return
 
 		updatehealth()
-		if(stat || stunned || dazed || knocked_down || lying || health < 0 || !client || !ventcrawl_carry())
+		if(is_mob_incapacitated(src) || health < 0 || !client || !ventcrawl_carry())
 			vent_found.animate_ventcrawl_reset()
 			return
 

code/_onclick/xeno.dm

@@ -3,7 +3,7 @@
 */
 
 /mob/living/carbon/xenomorph/UnarmedAttack(atom/target, proximity, click_parameters, tile_attack = FALSE, ignores_resin = FALSE)
-	if(lying || HAS_TRAIT(src, TRAIT_ABILITY_BURROWED)) //No attacks while laying down
+	if(body_position == LYING_DOWN || HAS_TRAIT(src, TRAIT_ABILITY_BURROWED)) //No attacks while laying down
 		return FALSE
 	var/mob/alt
 
@@ -21,7 +21,7 @@
 
 			if (!L.is_xeno_grabbable() || L == src) //Xenos never attack themselves.
 				continue
-			if (L.lying)
+			if (L.body_position == LYING_DOWN)
 				alt = L
 				continue
 			target = L

code/datums/action.dm

@@ -187,8 +187,10 @@
 		I.ui_action_click(owner, holder_item)
 
 /datum/action/item_action/can_use_action()
-	if(ishuman(owner) && !owner.is_mob_incapacitated() && !owner.lying)
-		return TRUE
+	if(ishuman(owner) && !owner.is_mob_incapacitated())
+		var/mob/living/carbon/human/human = owner
+		if(human.body_position == STANDING_UP)
+			return TRUE
 
 /datum/action/item_action/update_button_icon()
 	button.overlays.Cut()

code/datums/agents/tools/chloroform.dm

@@ -50,7 +50,6 @@
 	ADD_TRAIT(M, TRAIT_IMMOBILIZED, CHLOROFORM_TRAIT)
 	ADD_TRAIT(M, TRAIT_UNDENSE, CHLOROFORM_TRAIT)
 	M.able_to_speak = FALSE
-	M.update_canmove()
 
 	M.drop_inv_item_on_ground(M.wear_mask, force = TRUE)
 
@@ -79,7 +78,6 @@
 /obj/item/weapon/chloroform/proc/remove_stun(mob/living/M)
 	animate(M, pixel_x = 0, pixel_y = 0, time = 0.2 SECONDS, easing = QUAD_EASING)
 	M.anchored = FALSE
-	M.density = TRUE
 	M.able_to_speak = TRUE
 	M.layer = MOB_LAYER
 	REMOVE_TRAIT(M, TRAIT_IMMOBILIZED, CHLOROFORM_TRAIT)

code/datums/ammo/ammo.dm

@@ -138,7 +138,7 @@
 /datum/ammo/proc/knockback(mob/living/living_mob, obj/projectile/fired_projectile, max_range = 2)
 	if(!living_mob || living_mob == fired_projectile.firer)
 		return
-	if(fired_projectile.distance_travelled > max_range || living_mob.lying)
+	if(fired_projectile.distance_travelled > max_range || living_mob.body_position == LYING_DOWN)
 		return //Two tiles away or more, basically.
 
 	if(living_mob.mob_size >= MOB_SIZE_BIG)
@@ -180,8 +180,8 @@
 	else
 		living_mob.apply_stamina_damage(fired_projectile.ammo.damage, fired_projectile.def_zone, ARMOR_BULLET)
 
-/datum/ammo/proc/pushback(mob/target_mob, obj/projectile/fired_projectile, max_range = 2)
-	if(!target_mob || target_mob == fired_projectile.firer || fired_projectile.distance_travelled > max_range || target_mob.lying)
+/datum/ammo/proc/pushback(mob/living/target_mob, obj/projectile/fired_projectile, max_range = 2)
+	if(!target_mob || target_mob == fired_projectile.firer || fired_projectile.distance_travelled > max_range || target_mob.body_position == LYING_DOWN)
 		return
 
 	if(target_mob.mob_size >= MOB_SIZE_BIG)

code/datums/ammo/bullet/shotgun.dm

@@ -334,7 +334,7 @@
 	if(P.distance_travelled > 8)
 		knockback(M, P, 12)
 
-	else if(!M || M == P.firer || M.lying) //These checks are included in knockback and would be redundant above.
+	else if(!M || M == P.firer || M.body_position == LYING_DOWN) //These checks are included in knockback and would be redundant above.
 		return
 
 	shake_camera(M, 3, 4)

code/datums/ammo/xeno.dm

@@ -49,9 +49,9 @@
 
 	if(!isxeno(M))
 		if(insta_neuro)
-			if(M.knocked_down < 3)
+			if(M.GetKnockDownValueNotADurationDoNotUse() < 3) // If they have less than somewhere random between 4 and 6 seconds KD left and assuming it doesnt get refreshed itnernally
 				M.adjust_effect(1 * power, WEAKEN)
-			return
+				return
 
 		if(ishuman(M))
 			M.apply_effect(2.5, SUPERSLOW)
@@ -65,7 +65,7 @@
 				no_clothes_neuro = TRUE
 
 		if(no_clothes_neuro)
-			if(M.knocked_down < 5)
+			if(M.GetKnockDownValueNotADurationDoNotUse() < 5) // If they have less than somewhere random between 8 and 10 seconds KD left and assuming it doesnt get refreshed itnernally
 				M.adjust_effect(1 * power, WEAKEN) // KD them a bit more
 				M.visible_message(SPAN_DANGER("[M] falls prone."))
 
@@ -79,7 +79,7 @@
 			H.visible_message(SPAN_DANGER("[M] shrugs off the neurotoxin!"))
 			return
 
-		if(M.knocked_down < 0.7) // apply knockdown only if current knockdown is less than 0.7 second
+		if(M.GetKnockDownValueNotADurationDoNotUse() < 0.7) // basically (knocked_down && prob(90))
 			M.apply_effect(0.7, WEAKEN)
 			M.visible_message(SPAN_DANGER("[M] falls prone."))
 

code/datums/components/footstep.dm

@@ -47,7 +47,7 @@
 	if(!T)
 		return
 	var/mob/living/parent_mob = parent
-	if(parent_mob.lying && (isfile(drag_sounds) || istext(drag_sounds)))
+	if(parent_mob.body_position == LYING_DOWN && (isfile(drag_sounds) || istext(drag_sounds)))
 		playsound(T, drag_sounds, volume, rand(20000, 25000), range, falloff = falloff)
 	else if(isfile(footstep_sounds) || istext(footstep_sounds))
 		playsound(T, footstep_sounds, volume, rand(20000, 25000), range, falloff = falloff)

code/datums/diseases/cold.dm

@@ -20,7 +20,7 @@
 				cure()
 				return
 */
-			if(affected_mob.lying && prob(40))  //changed FROM prob(10) until sleeping is fixed
+			if(affected_mob.body_position == LYING_DOWN && prob(40))  //changed FROM prob(10) until sleeping is fixed
 				to_chat(affected_mob, SPAN_NOTICE(" You feel better."))
 				cure()
 				return
@@ -43,7 +43,7 @@
 				cure()
 				return
 */
-			if(affected_mob.lying && prob(25))  //changed FROM prob(5) until sleeping is fixed
+			if(affected_mob.body_position == LYING_DOWN && prob(25))  //changed FROM prob(5) until sleeping is fixed
 				to_chat(affected_mob, SPAN_NOTICE(" You feel better."))
 				cure()
 				return

code/datums/diseases/flu.dm

@@ -21,7 +21,7 @@
 				stage--
 				return
 */
-			if(affected_mob.lying && prob(20))  //added until sleeping is fixed --Blaank
+			if(affected_mob.body_position == LYING_DOWN && prob(20))  //added until sleeping is fixed --Blaank
 				to_chat(affected_mob, SPAN_NOTICE(" You feel better."))
 				stage--
 				return
@@ -46,7 +46,7 @@
 				stage--
 				return
 */
-			if(affected_mob.lying && prob(15))  //added until sleeping is fixed
+			if(affected_mob.body_position == LYING_DOWN && prob(15))  //added until sleeping is fixed
 				to_chat(affected_mob, SPAN_NOTICE(" You feel better."))
 				stage--
 				return