CRAWLING !!!!

code/__DEFINES/cooldowns.dm

@@ -4,6 +4,7 @@
 #define COOLDOWN_HIJACK_GROUND_CHECK "gamemode_ground_check"
 #define COOLDOWN_ITEM_HOOD_SOUND "item_hood_sound"
 #define COOLDOWN_LIGHT "cooldown_light"
+#define STALKING_COOLDOWN "stalking_cooldown"
 
 //Define for ship alt
 #define COOLDOWN_ALTITUDE_CHANGE "altitude_change"

code/__DEFINES/mobs.dm

@@ -160,6 +160,9 @@
 /*   MOVE DEFINES   */
 #define MOVE_INTENT_WALK 1
 #define MOVE_INTENT_RUN  2
+// same but for xenos
+#define MOVE_INTENT_STALK 1
+#define MOVE_INTENT_HUNT  2
 
 /*   INTERNAL ORGAN DEFINES   */
 #define ORGAN_ASSISTED 1

code/game/atoms.dm

@@ -16,7 +16,7 @@
 	// The cached datum for the permanent pass flags for any given atom
 	var/datum/pass_flags_container/pass_flags
 
-	// Temporary lags for what an atom can pass through
+	// Temporary flags for what an atom can pass through
 	var/list/flags_pass_temp
 	var/list/temp_flag_counter
 
@@ -429,7 +429,19 @@ Parameters are passed from New.
 			return TRUE
 	return FALSE
 
-// Movement
+///Temporal CAN PASS FLAGGS ,
+//this should be a proc for any kind of temporal flag but needs big rework (TODO)
+/atom/proc/add_temp_can_pass_flags(flags_to_add)
+	for (var/flag in GLOB.bitflags)
+		if(!(flags_to_add & flag))
+			continue
+		flags_can_pass_all_temp |= flag
+
+/atom/proc/remove_temp_can_pass_flags(flags_to_remove)
+	for (var/flag in GLOB.bitflags)
+		flags_can_pass_all_temp &= ~flag
+
+///Temporal PASS FLAGS
 /atom/proc/add_temp_pass_flags(flags_to_add)
 	if (isnull(temp_flag_counter))
 		temp_flag_counter = list()

code/modules/mob/living/carbon/xenomorph/XenoProcs.dm

@@ -216,16 +216,45 @@
 	armor_integrity = min(armor_integrity + value, 100)
 
 
-//Strip all inherent xeno verbs from your caste. Used in evolution.
+///Strip all inherent xeno verbs from your caste. Used in evolution.
 /mob/living/carbon/xenomorph/proc/remove_inherent_verbs()
 	if(inherent_verbs)
 		remove_verb(src, inherent_verbs)
 
-//Add all your inherent caste verbs and procs. Used in evolution.
+///Add all your inherent caste verbs and procs. Used in evolution.
 /mob/living/carbon/xenomorph/proc/add_inherent_verbs()
 	if(inherent_verbs)
 		add_verb(src, inherent_verbs)
 
+/// activates the buffs and debuffs of Stalk mode for certain castes , This is the generic proc but each xeno can have their own set of snowflake.
+/mob/living/carbon/xenomorph/set_movement_intent(new_intent, cooldown = 3 SECONDS)
+	if(TIMER_COOLDOWN_CHECK(src, STALKING_COOLDOWN))
+		to_chat(src, SPAN_XENOWARNING("We are not ready to change our stance"))
+		return
+	TIMER_COOLDOWN_START(src, STALKING_COOLDOWN, cooldown)
+	. = ..()
+	if(caste)
+		walk_modifier = caste.walk_modifier
+		run_modifier = caste.run_modifier
+	if(!can_ventcrawl()) // for now only crawlers can get actual buffs for stalk mode
+		return
+	if(tier > 1)
+		return
+	switch(new_intent)
+		if(MOVE_INTENT_HUNT)
+			evasion_modifier = XENO_EVASION_NONE
+			remove_temp_pass_flags(PASS_MOB_IS_XENO|PASS_TYPE_CRAWLER|PASS_MOB_THRU_XENO)
+			remove_temp_can_pass_flags(PASS_MOB_IS_XENO|PASS_MOB_THRU_XENO)
+			layer = initial(layer)
+
+		if(MOVE_INTENT_STALK)
+			evasion_modifier += XENO_EVASION_MOD_ULTRA // this looks like a lot but evasion is broken and doesnt even work most of the time
+			add_temp_pass_flags(PASS_MOB_IS_XENO|PASS_MOB_THRU_XENO|PASS_TYPE_CRAWLER)
+			add_temp_can_pass_flags(PASS_MOB_IS_XENO|PASS_MOB_THRU_XENO)
+			layer = XENO_HIDING_LAYER
+
+	recalculate_evasion()
+	update_icons()
 
 //Adds or removes a delay to movement based on your caste. If speed = 0 then it shouldn't do much.
 //Runners are -2, -4 is BLINDLINGLY FAST, +2 is fat-level
@@ -237,9 +266,6 @@
 	if(frenzy_aura)
 		. -= (frenzy_aura * 0.05)
 
-	if(agility)
-		. += caste.agility_speed_increase
-
 	var/obj/effect/alien/weeds/W = locate(/obj/effect/alien/weeds) in loc
 	if (W)
 		if (W.linked_hive.hivenumber == hivenumber)

code/modules/mob/living/carbon/xenomorph/Xenomorph.dm

@@ -52,6 +52,7 @@
 	gender = NEUTER
 	icon_size = 48
 	black_market_value = KILL_MENDOZA
+	base_walk = 3 // Base stalk(walking) speed
 	///How much to horizontally adjust the sprites of held item onmobs by. Based on icon size. Most xenos have hands about the same height as a human's.
 	var/xeno_inhand_item_offset
 	dead_black_market_value = 50
@@ -95,7 +96,6 @@
 	var/plasma_max = 10
 	var/plasma_gain = 5
 	var/cooldown_reduction_percentage = 0 // By what % cooldown are reduced by. 1 => No cooldown. Should normally be clamped at 50%
-
 	var/death_fontsize = 3
 
 	var/small_explosives_stun = TRUE // Have to put this here, otherwise it can't be strain specific

code/modules/mob/living/carbon/xenomorph/abilities/general_powers.dm

@@ -904,6 +904,9 @@
 
 		current = get_step_towards(current, target_turf)
 
+/datum/action/xeno_action/activable/tail_stab/can_use_action()
+	return TRUE
+
 /datum/action/xeno_action/activable/tail_stab/use_ability(atom/targetted_atom)
 	var/mob/living/carbon/xenomorph/stabbing_xeno = owner
 
@@ -925,6 +928,9 @@
 	if (world.time <= stabbing_xeno.next_move)
 		return FALSE
 
+	if(stabbing_xeno.m_intent == MOVE_INTENT_STALK)
+		stabbing_xeno.set_movement_intent(MOVE_INTENT_HUNT, 10 SECONDS)
+
 	var/distance = get_dist(stabbing_xeno, targetted_atom)
 	if(distance > 2)
 		return FALSE

code/modules/mob/living/carbon/xenomorph/abilities/xeno_action.dm

@@ -71,6 +71,8 @@
 	if(!owner)
 		return FALSE
 	var/mob/living/carbon/xenomorph/X = owner
+	if(X.m_intent == MOVE_INTENT_STALK && X.tier < 2)
+		return FALSE
 	if(X && !X.is_mob_incapacitated() && !HAS_TRAIT(X, TRAIT_DAZED) && X.body_position == STANDING_UP && !X.buckled && X.plasma_stored >= plasma_cost)
 		return TRUE
 
@@ -144,6 +146,13 @@
 /datum/action/xeno_action/activable
 
 /datum/action/xeno_action/activable/can_use_action()
+	if(!owner)
+		return FALSE
+	var/mob/living/carbon/xenomorph/xeno = owner
+	if(xeno.stat == DEAD) // to prevent dead xenos from doing wacky interactions
+		return FALSE
+	if(xeno.m_intent == MOVE_INTENT_STALK && xeno.tier < 2)
+		return FALSE
 	return TRUE
 
 // Called when the action is clicked on.

code/modules/mob/living/carbon/xenomorph/attack_alien.dm

@@ -17,6 +17,9 @@
 	if(attacking_xeno.behavior_delegate)
 		intent = attacking_xeno.behavior_delegate.override_intent(src)
 
+	if(attacking_xeno.m_intent == MOVE_INTENT_STALK)
+		attacking_xeno.set_movement_intent(MOVE_INTENT_HUNT, cooldown = 10 SECONDS)
+
 	//Reviewing the four primary intents
 	switch(intent)
 
@@ -229,6 +232,9 @@
 	if(M.fortify || HAS_TRAIT(M, TRAIT_ABILITY_BURROWED))
 		return XENO_NO_DELAY_ACTION
 
+	if(M.m_intent == MOVE_INTENT_STALK)
+		M.set_movement_intent(MOVE_INTENT_HUNT, cooldown = 10 SECONDS)
+
 	switch(M.a_intent)
 		if(INTENT_HELP)
 			M.visible_message(SPAN_NOTICE("[M] caresses [src] with its claws."), \

code/modules/mob/living/carbon/xenomorph/castes/Drone.dm

@@ -11,6 +11,7 @@
 	armor_deflection = XENO_NO_ARMOR
 	evasion = XENO_EVASION_MEDIUM
 	speed = XENO_SPEED_TIER_7
+	walk_modifier = XENO_SPEED_HELLHOUND // no penalty to crawling
 
 	available_strains = list(
 		/datum/xeno_strain/gardener,
@@ -50,7 +51,7 @@
 	desc = "An alien drone"
 	icon = 'icons/mob/xenos/drone.dmi'
 	icon_size = 48
-	icon_state = "Drone Walking"
+	icon_state = "Drone Running"
 	plasma_types = list(PLASMA_PURPLE)
 	tier = 1
 	organ_value = 800

code/modules/mob/living/carbon/xenomorph/castes/Runner.dm

@@ -56,7 +56,6 @@
 		/datum/action/xeno_action/onclick/regurgitate,
 		/datum/action/xeno_action/watch_xeno,
 		/datum/action/xeno_action/activable/tail_stab,
-		/datum/action/xeno_action/onclick/xenohide,
 		/datum/action/xeno_action/activable/pounce/runner,
 		/datum/action/xeno_action/activable/runner_skillshot,
 		/datum/action/xeno_action/onclick/toggle_long_range/runner,

code/modules/mob/living/carbon/xenomorph/castes/caste_datum.dm

@@ -12,6 +12,8 @@
 	var/evasion = XENO_EVASION_NONE
 
 	var/speed = XENO_SPEED_TIER_10
+	var/walk_modifier = 0
+	var/run_modifier = 0
 
 	var/plasma_max = 10
 	var/plasma_gain = 5
@@ -97,7 +99,7 @@
 	var/can_be_queen_healed = TRUE
 	var/can_be_revived = TRUE
 
-	var/can_vent_crawl = 1
+	var/can_vent_crawl = TRUE
 
 	var/caste_luminosity = 0
 

code/modules/mob/living/carbon/xenomorph/castes/lesser_drone.dm

@@ -11,6 +11,7 @@
 	armor_deflection = XENO_NO_ARMOR
 	evasion = XENO_EVASION_LOW
 	speed = XENO_SPEED_TIER_6
+	walk_modifier = XENO_SPEED_HELLHOUND
 
 	evolution_allowed = FALSE
 	can_be_revived = FALSE

code/modules/mob/living/carbon/xenomorph/strains/castes/drone/gardener.dm

@@ -379,7 +379,11 @@
 		else
 			fruit_sac_overlay_icon.icon_state = "Gardener Drone Knocked Down"
 	else
-		fruit_sac_overlay_icon.icon_state = "Gardener Drone Walking"
+		switch(bound_xeno.m_intent)
+			if(MOVE_INTENT_STALK)
+				fruit_sac_overlay_icon.icon_state = "Gardener Drone Walking"
+			if(MOVE_INTENT_HUNT)
+				fruit_sac_overlay_icon.icon_state = "Gardener Drone Running"
 
 	var/fruit_sac_color = initial(bound_xeno.selected_fruit.gardener_sac_color)
 

code/modules/mob/living/carbon/xenomorph/strains/castes/drone/healer.dm

@@ -164,7 +164,11 @@
 		else
 			salve_applied_icon.icon_state = "Healer Drone Knocked Down"
 	else
-		salve_applied_icon.icon_state = "Healer Drone Walking"
+		switch(bound_xeno.m_intent)
+			if(MOVE_INTENT_STALK)
+				salve_applied_icon.icon_state = "Healer Drone Walking"
+			if(MOVE_INTENT_HUNT)
+				salve_applied_icon.icon_state = "Healer Drone Running"
 
 	bound_xeno.overlays += salve_applied_icon
 

code/modules/mob/mob.dm

@@ -224,9 +224,9 @@
 /mob/proc/movement_delay()
 	switch(m_intent)
 		if(MOVE_INTENT_RUN)
-			. = 2 + CONFIG_GET(number/run_speed)
+			. = base_run + CONFIG_GET(number/run_speed) + run_modifier
 		if(MOVE_INTENT_WALK)
-			. = 7 + CONFIG_GET(number/walk_speed)
+			. = base_walk + CONFIG_GET(number/walk_speed) + walk_modifier
 	. += speed
 	move_delay = .
 

code/modules/mob/mob_defines.dm

@@ -28,21 +28,34 @@
 	/// The list of people observing this mob.
 	var/list/mob/dead/observer/observers
 	var/zone_selected = "chest"
-
-	var/use_me = 1 //Allows all mobs to use the me verb by default, will have to manually specify they cannot
+	///Allows all mobs to use the me verb by default, will have to manually specify they cannot
+	var/use_me = 1
 	var/damageoverlaytemp = 0
-	var/computer_id = null //to track the players
+	///to track the players
+	var/computer_id = null
 	var/list/attack_log = list( )
-	var/atom/movable/interactee //the thing that the mob is currently interacting with (e.g. a computer, another mob (stripping a mob), manning a hmg)
+	///the thing that the mob is currently interacting with (e.g. a computer, another mob (stripping a mob), manning a hmg)
+	var/atom/movable/interactee
 	var/sdisabilities = 0 //Carbon
 	var/disabilities = 0 //Carbon
 	var/atom/movable/pulling = null
 	var/next_move = null
-	var/next_move_slowdown = 0 // Amount added during the next movement_delay(), then is reset.
-	var/speed = 0 //Speed that modifies the movement delay of a given mob
-	var/recalculate_move_delay = TRUE // Whether move delay needs to be recalculated, on by default so that new mobs actually get movement delay calculated upon creation
+	/// Amount added during the next movement_delay(), then is reset.
+	var/next_move_slowdown = 0
+	///Speed that modifies the movement delay of a given mob
+	var/speed = 0
+	/// Whether move delay needs to be recalculated, on by default so that new mobs actually get movement delay calculated upon creation
+	var/recalculate_move_delay = TRUE
 	var/crawling = FALSE
 	var/can_crawl = TRUE
+	/// Base walking speed
+	var/base_walk = 4
+	/// Base running speed
+	var/base_run = 2
+	/// speed modifier for Walk mode
+	var/walk_modifier = 0
+	/// speed modifier for Run mode
+	var/run_modifier = 0
 	var/monkeyizing = null //Carbon
 	var/hand = null