Martial arts improvements and additions (#6094)

-adds framework for weapons based martial arts, implementing a very basic swordsmanship
-makes the martial art books more modular
-fixes some minor issues with some of the martial art code
-adds amohdan swordsmen gear, to be used in a future event/sold by the merchant
- fixes #6083

code/_onclick/item_attack.dm

@@ -91,10 +91,17 @@ avoid code duplication. This includes items that may sometimes act as a standard
 	var/power = force
 	if(HULK in user.mutations)
 		power *= 2
-	if(istype(user, /mob/living/carbon/human))
+	if(ishuman(user))
 		var/mob/living/carbon/human/X = user
 		if(X.gloves && istype(X.gloves,/obj/item/clothing/gloves/force))
 			var/obj/item/clothing/gloves/force/G = X.gloves
 			power *= G.amplification
+
+		if(ishuman(target))
+			if(X.martial_art && X.martial_art.weapon_affinity && istype(src, X.martial_art.weapon_affinity))
+				perform_technique(target, X, hit_zone)
+
 	return target.hit_with_weapon(src, user, power, hit_zone)
 
+/obj/item/proc/perform_technique(var/mob/living/carbon/human/target, var/mob/living/carbon/human/user, var/target_zone)	//used when weapons have special interactions with martial arts
+	return

code/datums/trading/misc.dm

@@ -141,6 +141,7 @@
 		/obj/item/clothing/head/plaguedoctorhat         = TRADER_THIS_TYPE,
 		/obj/item/clothing/head/helmet/unathi           = TRADER_THIS_TYPE,
 		/obj/item/clothing/head/helmet/tank             = TRADER_ALL,
+		/obj/item/clothing/head/helmet/tajara           = TRADER_THIS_TYPE,
 		/obj/item/clothing/glasses/monocle              = TRADER_THIS_TYPE,
 		/obj/item/clothing/mask/smokable/pipe           = TRADER_THIS_TYPE,
 		/obj/item/clothing/mask/gas/plaguedoctor        = TRADER_THIS_TYPE,
@@ -150,6 +151,7 @@
 		/obj/item/clothing/suit/wizrobe/magusred        = TRADER_THIS_TYPE,
 		/obj/item/clothing/suit/wizrobe/magusblue       = TRADER_THIS_TYPE,
 		/obj/item/clothing/suit/armor/unathi            = TRADER_THIS_TYPE,
+		/obj/item/clothing/suit/armor/tajara            = TRADER_THIS_TYPE,
 		/obj/item/clothing/under/gladiator              = TRADER_THIS_TYPE,
 		/obj/item/clothing/under/kilt                   = TRADER_THIS_TYPE,
 		/obj/item/clothing/under/redcoat                = TRADER_THIS_TYPE,

code/datums/uplink/highly visible and dangerous weapons.dm

@@ -77,12 +77,12 @@
 /datum/uplink_item/item/visible_weapons/wrestling
 	name = "Wrestling Manual"
 	item_cost = 6
-	path = /obj/item/wrestling_manual
+	path = /obj/item/martial_manual/wrestling
 
 /datum/uplink_item/item/visible_weapons/solcom
 	name = "SolCom Manual"
 	item_cost = 6
-	path = /obj/item/sol_combat_manual
+	path = /obj/item/martial_manual
 
 /datum/uplink_item/item/visible_weapons/heavysniper
 	name = "Anti-materiel Rifle"

code/game/objects/items/weapons/material/swords.dm

@@ -12,16 +12,51 @@
 	attack_verb = list("attacked", "slashed", "stabbed", "sliced", "torn", "ripped", "diced", "cut")
 	hitsound = 'sound/weapons/bladeslice.ogg'
 	can_embed = 0
-	var/parry_chance = 50
+	var/parry_chance = 40
 
 /obj/item/weapon/material/sword/handle_shield(mob/user, var/damage, atom/damage_source = null, mob/attacker = null, var/def_zone = null, var/attack_text = "the attack")
+	var/parry_bonus = 1
 
-	if(default_parry_check(user, attacker, damage_source) && prob(parry_chance))
+	if(ishuman(user))
+		var/mob/living/carbon/human/H = user
+		if(H.martial_art && H.martial_art.weapon_affinity && istype(src, H.martial_art.weapon_affinity))
+			parry_bonus = H.martial_art.parry_multiplier
+
+	if(default_parry_check(user, attacker, damage_source) && prob(parry_chance * parry_bonus))
 		user.visible_message("<span class='danger'>\The [user] parries [attack_text] with \the [src]!</span>")
 		playsound(user.loc, 'sound/weapons/punchmiss.ogg', 50, 1)
 		return 1
 	return 0
 
+/obj/item/weapon/material/sword/perform_technique(var/mob/living/carbon/human/target, var/mob/living/carbon/human/user, var/target_zone)
+	var/armor_reduction = target.run_armor_check(target_zone,"melee")
+	var/obj/item/organ/external/affecting = target.get_organ(target_zone)
+	if(!affecting)
+		return
+
+	user.do_attack_animation(target)
+
+	if(target_zone == "head" || target_zone == "eyes" || target_zone == "mouth")
+		if(prob(70 - armor_reduction))
+			target.eye_blurry += 5
+			target.confused += 10
+			return TRUE
+
+	if(target_zone == "r_arm" || target_zone == "l_arm" || target_zone == "r_hand" || target_zone == "l_hand")
+		if(prob(80 - armor_reduction))
+			if(target_zone == "r_arm" || target_zone == "r_hand")
+				target.drop_r_hand()
+			else
+				target.drop_l_hand()
+			return TRUE
+
+	if(target_zone == "r_feet" || target_zone == "l_feet" || target_zone == "r_leg" || target_zone == "l_leg")
+		if(prob(60 - armor_reduction))
+			target.Weaken(5)
+			return TRUE
+
+	return FALSE
+
 /obj/item/weapon/material/sword/katana
 	name = "katana"
 	desc = "Woefully underpowered in D20. This one looks pretty sharp."
@@ -104,3 +139,12 @@
 	item_state = "gladius"
 	contained_sprite = 1
 	slot_flags = SLOT_BELT
+
+/obj/item/weapon/material/sword/amohdan_sword
+	name = "amohdan blade"
+	desc = "A tajaran sword, commonly used by the swordsmen of the island of Amohda."
+	icon = 'icons/obj/sword.dmi'
+	icon_state = "amohdan_sword"
+	item_state = "amohdan_sword"
+	contained_sprite = 1
+	slot_flags = SLOT_BELT

code/modules/clothing/head/helmet.dm

@@ -248,3 +248,16 @@
 	body_parts_covered = HEAD|FACE|EYES
 	flags_inv = HIDEEARS|HIDEEYES|HIDEFACE
 	armor = list(melee = 50, bullet = 30, laser = 30, energy = 15, bomb = 40, bio = 0, rad = 0)
+
+/obj/item/clothing/head/helmet/tajara
+	name = "amohdan swordsmen helmet"
+	desc = "A helmet used by the traditional warriors of Amohhda."
+	icon = 'icons/obj/tajara_items.dmi'
+	icon_state = "amohdan_helmet"
+	item_state = "amohdan_helmet"
+	contained_sprite = TRUE
+	body_parts_covered = HEAD|FACE|EYES
+	flags_inv = HIDEMASK|HIDEEARS|HIDEEYES|HIDEFACE|BLOCKHAIR
+	species_restricted = list("Tajara")
+	armor = list(melee = 60, bullet = 50, laser = 20, energy = 10, bomb = 5, bio = 0, rad = 0)
+	allow_hair_covering = FALSE

code/modules/clothing/suits/armor.dm

@@ -498,10 +498,23 @@
 	icon = 'icons/obj/unathi_items.dmi'
 	icon_state = "unathi_armor"
 	item_state = "unathi_armor"
-	contained_sprite = 1
+	contained_sprite = TRUE
 	species_restricted = list("Unathi")
 	armor = list(melee = 65, bullet = 30, laser = 50, energy = 10, bomb = 25, bio = 0, rad = 0)
 
+/obj/item/clothing/suit/armor/tajara
+	name = "amohdan swordsmen armor"
+	desc = "A suit of armor used by the traditional warriors of Amohhda."
+	icon = 'icons/obj/tajara_items.dmi'
+	icon_state = "amohdan_armor"
+	item_state = "amohdan_armor"
+	contained_sprite = TRUE
+	body_parts_covered = UPPER_TORSO|LOWER_TORSO|LEGS|ARMS
+	allowed = list(/obj/item/weapon/gun,/obj/item/weapon/material/sword)
+	flags_inv = HIDEJUMPSUIT|HIDETAIL
+	species_restricted = list("Tajara")
+	armor = list(melee = 60, bullet = 50, laser = 20, energy = 10, bomb = 5, bio = 0, rad = 0)
+
 //tau ceti foreign legion armor
 
 /obj/item/clothing/suit/storage/vest/legion

code/modules/martial_arts/martial.dm

@@ -9,6 +9,9 @@
 	var/no_guns = FALSE	//set to TRUE to prevent users of this style from using guns
 	var/no_guns_message = ""	//message to tell the style user if they try and use a gun while no_guns = TRUE (DISHONORABRU!)
 	var/temporary = 0
+	var/weapon_affinity	//if this martial art has any interaction with a weapon, also spawns said weapon when the manual is used
+	var/parry_multiplier = 1	//if this martial art increases the chance of parrying with the weapon
+	var/list/possible_weapons //if any weapon is spawned when you use the martial art manual
 
 /datum/martial_art/proc/disarm_act(var/mob/living/carbon/human/A, var/mob/living/carbon/human/D)
 	return 0
@@ -165,4 +168,24 @@
 		if(!A)
 			break
 		A.set_dir(i)
-		playsound(A.loc, 'sound/weapons/punch1.ogg', 15, 1, -1)
+		playsound(A.loc, 'sound/weapons/punch1.ogg', 15, 1, -1)
+
+/obj/item/martial_manual
+	name = "SolCom manual"
+	desc = "A manual designated to teach the user about the martial art of solarian combat, a style based on traditional human martial arts."
+	icon = 'icons/obj/library.dmi'
+	icon_state ="cqcmanual"
+	var/martial_art = /datum/martial_art/sol_combat
+
+/obj/item/martial_manual/attack_self(mob/user as mob)
+	if(!ishuman(user))
+		return
+	var/mob/living/carbon/human/H = user
+	var/datum/martial_art/F = new martial_art(null)
+	F.teach(H)
+	to_chat(H, "<span class='notice'>You have learned the martial art of [F.name].</span>")
+	if(F.possible_weapons)
+		var/weapon = pick(F.possible_weapons)
+		var/obj/item/W = new weapon(get_turf(user))
+		H.put_in_hands(W)
+	qdel(src)

code/modules/martial_arts/plasma_fist.dm

@@ -107,20 +107,9 @@
 	to_chat(usr, "<span class='notice'>Throwback</span>: Disarm Harm Disarm. Throws the target and an item at them.")
 	to_chat(usr, "<span class='notice'>The Plasma Fist</span>: Harm Disarm Disarm Disarm Harm. Knocks the brain out of the opponent and gibs their body.")
 
-/obj/item/plasma_fist_scroll
+/obj/item/martial_manual/plasma_fist
 	name = "frayed scroll"
 	desc = "An aged and frayed scrap of paper written in shifting runes. There are hand-drawn illustrations of pugilism."
 	icon = 'icons/obj/wizard.dmi'
 	icon_state ="scroll2"
-
-/obj/item/plasma_fist_scroll/attack_self(mob/user as mob)
-	if(!ishuman(user))
-		return
-	var/mob/living/carbon/human/H = user
-	var/datum/martial_art/plasma_fist/F = new/datum/martial_art/plasma_fist(null)
-	F.teach(H)
-	to_chat(H, "<span class='boldannounce'>You have learned the ancient martial art of Plasma Fist.</span>")
-	visible_message("<span class='warning'>[src] lights up in fire and quickly burns to ash.</span>")
-	new /obj/effect/decal/cleanable/ash(get_turf(src))
-	user.drop_from_inventory(src,get_turf(src))
-	qdel(src)
+	martial_art = /datum/martial_art/plasma_fist

code/modules/martial_arts/skrell.dm

@@ -78,22 +78,6 @@ datum/martial_art/karak_virul/grab_act(var/mob/living/carbon/human/A, var/mob/li
 	basic_hit(A,D)
 	return 1
 
-
-/obj/item/karak_virul_manual
-	name = "karak virul manual"
-	desc = "A manual designated to teach the user about the skrellian martial art of Karak Virul."
-	icon = 'icons/obj/library.dmi'
-	icon_state ="cqcmanual"
-
-/obj/item/karak_virul_manual/attack_self(mob/user as mob)
-	if(!ishuman(user))
-		return
-	var/mob/living/carbon/human/H = user
-	var/datum/martial_art/karak_virul/F = new/datum/martial_art/karak_virul(null)
-	F.teach(H)
-	to_chat(H, "<span class='notice'>You have learned the martial art of Karak Virul.</span>")
-	qdel(src)
-
 /datum/martial_art/karak_virul/proc/karak_virul_help()
 	set name = "Recall Teachings"
 	set desc = "Remember the martial techniques of the Karak Virul."
@@ -104,3 +88,7 @@ datum/martial_art/karak_virul/grab_act(var/mob/living/carbon/human/A, var/mob/li
 	to_chat(usr, "<span class='notice'>Leg Sweep</span>: Disarm Harm Disarm.. Trips the victim, rendering them prone and unable to move for a short time.")
 	to_chat(usr, "<span class='notice'>Dislocating Strike</span>: Harm Disarm Disarm Disarm. Delivers a strong punch that can dislocate your target's limb.")
 
+/obj/item/martial_manual/skrell
+	name = "karak virul manual"
+	desc = "A manual designated to teach the user about the skrellian martial art of Karak Virul."
+	martial_art = /datum/martial_art/karak_virul

code/modules/martial_arts/sleeping_carp.dm

@@ -122,24 +122,9 @@
 	to_chat(usr, "<span class='notice'>Head Kick</span>: Disarm Harm Harm. Decent damage, forces opponent to drop item in hand.")
 	to_chat(usr, "<span class='notice'>Elbow Drop</span>: Harm Disarm Harm Disarm Harm. Opponent must be on the ground. Deals huge damage, instantly kills anyone in critical condition.")
 
-/obj/item/sleeping_carp_scroll
+/obj/item/martial_manual/sleeping_carp
 	name = "mysterious scroll"
 	desc = "A scroll filled with strange markings. It seems to be drawings of some sort of martial art."
 	icon = 'icons/obj/wizard.dmi'
 	icon_state = "scroll2"
-
-/obj/item/sleeping_carp_scroll/attack_self(mob/living/carbon/human/user as mob)
-	if(!istype(user) || !user)
-		return
-	to_chat(user, "<span class='sciradio'>You have learned the ancient martial art of the Sleeping Carp! \
-					Your hand-to-hand combat has become much more effective, and you are now able to deflect any projectiles directed toward you. \
-					However, you are also unable to use any ranged weaponry. \
-					You can learn more about your newfound art by using the Recall Teachings verb in the Sleeping Carp tab.</span>")
-
-
-	var/datum/martial_art/the_sleeping_carp/theSleepingCarp = new(null)
-	theSleepingCarp.teach(user)
-	visible_message("<span class='warning'>[src] lights up in fire and quickly burns to ash.</span>")
-	new /obj/effect/decal/cleanable/ash(get_turf(src))
-	user.drop_from_inventory(src,get_turf(src))
-	qdel(src)
+	martial_art = /datum/martial_art/the_sleeping_carp

code/modules/martial_arts/sol_combat.dm

@@ -25,7 +25,7 @@
 	A.do_attack_animation(D)
 	if(D.stat || D.weakened)
 		return 0
-	D.visible_message("<span class='warning'>[A] leg sweeps [D]!</span>")
+	A.visible_message("<span class='warning'>[A] leg sweeps [D]!</span>")
 	playsound(get_turf(A), "swing_hit", 50, 1, -1)
 	D.apply_damage(5, BRUTE)
 	D.Weaken(2)
@@ -33,7 +33,7 @@
 
 /datum/martial_art/sol_combat/proc/quick_choke(var/mob/living/carbon/human/A, var/mob/living/carbon/human/D)//is actually lung punch
 	A.do_attack_animation(D)
-	D.visible_message("<span class='warning'>[A] pounds [D] on the chest!</span>")
+	A.visible_message("<span class='warning'>[A] pounds [D] on the chest!</span>")
 	playsound(get_turf(A), 'sound/weapons/punch1.ogg', 50, 1, -1)
 	if(!(D.species.flags & NO_BREATHE))
 		D.losebreath += 5
@@ -42,7 +42,7 @@
 
 /datum/martial_art/sol_combat/proc/neck_chop(var/mob/living/carbon/human/A, var/mob/living/carbon/human/D)
 	A.do_attack_animation(D)
-	D.visible_message("<span class='warning'>[A] karate chops [D]'s neck!</span>")
+	A.visible_message("<span class='warning'>[A] karate chops [D]'s neck!</span>")
 	playsound(get_turf(A), "punch", 50, 1, -1)
 	D.apply_damage(5, BRUTE)
 	D.silent += 10
@@ -70,7 +70,7 @@ datum/martial_art/sol_combat/grab_act(var/mob/living/carbon/human/A, var/mob/liv
 	else
 		playsound(get_turf(D), "punch", 50, 1, -1)
 
-	D.visible_message("<span class='danger'>[A] [picked_hit_type] [D]!</span>")
+	A.visible_message("<span class='danger'>[A] [picked_hit_type] [D]!</span>")
 	A.attack_log += text("\[[time_stamp()]\] <font color='red'>["[picked_hit_type]"] [D.name] ([D.ckey])</font>")
 	D.attack_log += text("\[[time_stamp()]\] <font color='orange'>["Has Been [picked_hit_type]"] by [A.name] ([A.ckey])</font>")
 	msg_admin_attack("[key_name(A)] ["has [picked_hit_type]"] [key_name(D)] (<A HREF='?_src_=holder;adminplayerobservecoodjump=1;X=[A.x];Y=[A.y];Z=[A.z]'>JMP</a>)",ckey=key_name(A),ckey_target=key_name(D))
@@ -88,39 +88,17 @@ datum/martial_art/sol_combat/grab_act(var/mob/living/carbon/human/A, var/mob/liv
 	msg_admin_attack("[key_name(A)] disarmed [D.name] ([D.ckey]) (<A HREF='?_src_=holder;adminplayerobservecoodjump=1;X=[D.x];Y=[D.y];Z=[D.z]'>JMP</a>)",ckey=key_name(D),ckey_target=key_name(A))
 
 	if(prob(60))
-		if(D.hand)
-			if(istype(D.l_hand, /obj/item))
-				var/obj/item/I = D.l_hand
-				D.drop_item()
-				A.put_in_hands(I)
-		else
-			if(istype(D.r_hand, /obj/item))
-				var/obj/item/I = D.r_hand
-				D.drop_item()
-				A.put_in_hands(I)
-		D.visible_message("<span class='danger'>[A] has disarmed [D]!</span>")
-		playsound(D, 'sound/weapons/thudswoosh.ogg', 50, 1, -1)
+		var/obj/item/I = D.get_active_hand()
+		if(I)
+			A.visible_message("<span class='danger'>[A] has disarmed [D]!</span>")
+			playsound(D, 'sound/weapons/thudswoosh.ogg', 50, 1, -1)
+			D.drop_from_inventory(I)
+			A.put_in_hands(I)
 	else
-		D.visible_message("<span class='danger'>[A] attempted to disarm [D]!</span>")
+		A.visible_message("<span class='danger'>[A] attempted to disarm [D]!</span>")
 		playsound(D, 'sound/weapons/punchmiss.ogg', 25, 1, -1)
 	return 1
 
-/obj/item/sol_combat_manual
-	name = "SolCom manual"
-	desc = "A manual designated to teach the user about the martial art of solarian combat, a style based on traditional human martial arts."
-	icon = 'icons/obj/library.dmi'
-	icon_state ="cqcmanual"
-
-/obj/item/sol_combat_manual/attack_self(mob/user as mob)
-	if(!ishuman(user))
-		return
-	var/mob/living/carbon/human/H = user
-	var/datum/martial_art/sol_combat/F = new/datum/martial_art/sol_combat(null)
-	F.teach(H)
-	to_chat(H, "<span class='notice'>You have learned the martial art of Solarian Combat.</span>")
-	qdel(src)
-
-
 /datum/martial_art/sol_combat/proc/sol_combat_help()
 	set name = "Recall Teachings"
 	set desc = "Remember the martial techniques of the Solarian Combat."

code/modules/martial_arts/swordsmanship.dm

@@ -0,0 +1,11 @@
+/datum/martial_art/swordsmanship
+	name = "Swordsmanship"
+	weapon_affinity	= /obj/item/weapon/material/sword
+	parry_multiplier = 2
+	possible_weapons = list(/obj/item/weapon/material/sword, /obj/item/weapon/material/sword/katana, /obj/item/weapon/material/sword/rapier)
+
+/obj/item/martial_manual/swordsmanship
+	name = "swordsmanship manual"
+	desc = "A manual containing basic swordsmanship instruction and techniques."
+	icon_state ="rulebook"
+	martial_art = /datum/martial_art/swordsmanship

code/modules/martial_arts/tajara.dm

@@ -81,7 +81,6 @@
 	basic_hit(A,D)
 	return 1
 
-
 /datum/martial_art/baghrar/disarm_act(var/mob/living/carbon/human/A, var/mob/living/carbon/human/D)
 	add_to_streak("D",D)
 	if(check_streak(A,D))
@@ -89,22 +88,6 @@
 	basic_hit(A,D)
 	return 1
 
-
-/obj/item/baghrar_manual
-	name = "baghrar manual"
-	desc = "A manual designated to teach the user about the tajaran martial art of Baghrar."
-	icon = 'icons/obj/library.dmi'
-	icon_state ="cqcmanual"
-
-/obj/item/baghrar_manual/attack_self(mob/user as mob)
-	if(!ishuman(user))
-		return
-	var/mob/living/carbon/human/H = user
-	var/datum/martial_art/baghrar/F = new/datum/martial_art/baghrar(null)
-	F.teach(H)
-	to_chat(H, "<span class='notice'>You have learned the martial art of Baqhrar.</span>")
-	qdel(src)
-
 /datum/martial_art/baghrar/proc/baghrar_help()
 	set name = "Recall Teachings"
 	set desc = "Remember the martial techniques of the Baghrar."
@@ -115,3 +98,8 @@
 	to_chat(usr, "<span class='notice'>Claw Punch</span>: Disarm Harm Harm. Hits your target with your claws, dealing damage and causing bleeding.")
 	to_chat(usr, "<span class='notice'>Rrak'narrr Stab</span>: Harm Harm Disarm Disarm. Stabs your target with your claws, dealing more damage based on how hurt they are.")
 
+/obj/item/martial_manual/tajara
+	name = "baghrar manual"
+	desc = "A manual designated to teach the user about the tajaran martial art of Baghrar."
+	martial_art = /datum/martial_art/baghrar
+

code/modules/martial_arts/unathi.dm

@@ -88,21 +88,6 @@
 	var/atom/throw_target = get_edge_target_turf(D, get_dir(D, get_step_away(D, A)))
 	D.throw_at(throw_target, 200, 4,A)
 
-/obj/item/kis_khan_manual
-	name = "kis khan scroll"
-	desc = "A parched scroll.It seems to be drawings of some sort of martial art involving tails."
-	icon = 'icons/obj/wizard.dmi'
-	icon_state = "scroll2"
-
-/obj/item/kis_khan_manual/attack_self(mob/user as mob)
-	if(!ishuman(user))
-		return
-	var/mob/living/carbon/human/H = user
-	var/datum/martial_art/kis_khan/F = new/datum/martial_art/kis_khan(null)
-	F.teach(H)
-	to_chat(H, "<span class='notice'>You have learned the martial art of Kis Khan.</span>")
-	qdel(src)
-
 /datum/martial_art/kis_khan/proc/kis_khan_help()
 	set name = "Recall Teachings"
 	set desc = "Remember the martial techniques of the Kis-khan."
@@ -113,3 +98,9 @@
 	to_chat(usr, "<span class='notice'>Swift Disarm</span>: Disarm Disarm Grab. Strikes your target's weapon, trying to disarm it from their hands.")
 	to_chat(usr, "<span class='notice'>Hammering Strike</span>: Disarm Harm Disarm. Delivers a strikes that will push the target away from you.")
 
+/obj/item/martial_manual/unathi
+	name = "kis khan scroll"
+	desc = "A parched scroll.It seems to be drawings of some sort of martial art involving tails."
+	icon = 'icons/obj/wizard.dmi'
+	icon_state = "scroll2"
+	martial_art = /datum/martial_art/kis_khan

code/modules/martial_arts/vaurca.dm

@@ -56,45 +56,30 @@
 
 /datum/martial_art/vkutet/proc/swift_bite(var/mob/living/carbon/human/A, var/mob/living/carbon/human/D)
 	D.grabbedby(A,1)
-	var/obj/item/weapon/grab/G = A.get_active_hand()
-	if(G && prob(50))
-		G.state = GRAB_AGGRESSIVE
-		D.visible_message("<span class='danger'>[A] gets a strong grip on [D]!</span>")
-		if(isvaurca(A))
-			A.bugbite()
-			qdel(G)
+	if(istype(A.get_active_hand(),/obj/item/weapon/grab))
+		var/obj/item/weapon/grab/G = A.get_active_hand()
+		if(G && G.affecting == D)
+			G.state = GRAB_AGGRESSIVE
+			D.visible_message("<span class='danger'>[A] gets a strong grip on [D]!</span>")
+			if(isvaurca(A))
+				A.bugbite()
+				qdel(G)
 	return 1
 
 /datum/martial_art/vkutet/proc/crushing_jaws(var/mob/living/carbon/human/A, var/mob/living/carbon/human/D)
 	if(!isvaurca(A))
 		return 0
-	if(istype(A.get_inactive_hand(),/obj/item/weapon/grab))
-		D.grabbedby(A,1)
-		var/obj/item/weapon/grab/G = A.get_inactive_hand()
-		if(G.affecting == D)
-			if(G.affecting == D)
-				var/armor_block = D.run_armor_check(null, "melee")
-				A.visible_message("<span class='warning'>[A] crushes [D] with its mandibles!</span>")
-				D.apply_damage(30, BRUTE, null, armor_block)
-				D.apply_effect(6, WEAKEN, armor_block)
-				qdel(G)
+	D.grabbedby(A,1)
+	if(istype(A.get_active_hand(),/obj/item/weapon/grab))
+		var/obj/item/weapon/grab/G = A.get_active_hand()
+		if(G && G.affecting == D)
+			var/armor_block = D.run_armor_check(null, "melee")
+			A.visible_message("<span class='warning'>[A] crushes [D] with its mandibles!</span>")
+			D.apply_damage(30, BRUTE, null, armor_block)
+			D.apply_effect(6, WEAKEN, armor_block)
+			qdel(G)
 	return 1
 
-/obj/item/vkutet_manual
-	name = "vk'utet data disk"
-	desc = "A data disk containing information about the vaurca fighting technice know as Vk'utet."
-	icon = 'icons/obj/vaurca_items.dmi'
-	icon_state = "harddisk"
-
-/obj/item/vkutet_manual/attack_self(mob/user as mob)
-	if(!ishuman(user))
-		return
-	var/mob/living/carbon/human/H = user
-	var/datum/martial_art/vkutet/F = new/datum/martial_art/vkutet(null)
-	F.teach(H)
-	to_chat(H, "<span class='notice'>You have learned the martial art of Vk'utet.</span>")
-	qdel(src)
-
 /datum/martial_art/vkutet/proc/vkutet_help()
 	set name = "Recall Teachings"
 	set desc = "Remember the martial techniques of the Vk'utet."
@@ -105,3 +90,9 @@
 	to_chat(usr, "<span class='notice'>Swift Bite</span>: Disarm Disarm Grab. Quickly grabs your victim and bites them with your mandibles.")
 	to_chat(usr, "<span class='notice'>Crushing Jaws</span>: Harm Harm Disarm Grab. Grabs your victim and violently crushes them with your mandibles, inflicting heavy damage.")
 
+/obj/item/martial_manual/vaurca
+	name = "vk'utet data disk"
+	desc = "A data disk containing information about the vaurca fighting technice know as Vk'utet."
+	icon = 'icons/obj/vaurca_items.dmi'
+	icon_state = "harddisk"
+	martial_art = /datum/martial_art/vkutet

code/modules/martial_arts/wrestling.dm

@@ -62,17 +62,7 @@
 	to_chat(usr, "<span class='notice'>Suplex</span>: Disarm someone you are grabbing. Suplexes your target to the floor. Greatly injures them and leaves both you and your target on the floor.")
 	to_chat(usr, "<span class='notice'>Advanced grab</span>: Grab. Passively causes pain when grabbing someone.")
 
-/obj/item/wrestling_manual
+/obj/item/martial_manual/wrestling
 	name = "wrestling manual"
 	desc = "A manual designated to teach the user about the art of wrestling."
-	icon = 'icons/obj/library.dmi'
-	icon_state ="cqcmanual"
-
-/obj/item/wrestling_manual/attack_self(mob/user as mob)
-	if(!ishuman(user))
-		return
-	var/mob/living/carbon/human/H = user
-	var/datum/martial_art/wrestling/F = new/datum/martial_art/wrestling(null)
-	F.teach(H)
-	to_chat(H, "<span class='notice'>You have learned the martial art of wrestling.</span>")
-	qdel(src)
+	martial_art = /datum/martial_art/wrestling

code/modules/mob/living/carbon/human/human_defense.dm

@@ -15,10 +15,11 @@ emp_act
 	if(species_check)
 		return species_check
 
-	if(martial_art && martial_art.deflection_chance)
-		if(prob(martial_art.deflection_chance))
-			src.visible_message("<span class='danger'>\The [src] deflects \the [P]!</span>")
-			return 0
+	if(!is_physically_disabled())
+		if(martial_art && martial_art.deflection_chance)
+			if(prob(martial_art.deflection_chance))
+				src.visible_message("<span class='danger'>\The [src] deflects \the [P]!</span>")
+				return 0
 
 	def_zone = check_zone(def_zone)
 	if(!has_organ(def_zone))