Bubberstation/code/datums/wounds/slash.dm

//SKYRAT EDIT REMOVAL - MOVED - MEDICINE
/*

/*
	Slashing wounds
*/

/datum/wound/slash
	name = "Slashing (Cut) Wound"
	sound_effect = 'sound/weapons/slice.ogg'
	processes = TRUE
	wound_type = WOUND_SLASH
	treatable_by = list(/obj/item/stack/medical/suture)
	treatable_by_grabbed = list(/obj/item/gun/energy/laser)
	treatable_tool = TOOL_CAUTERY
	base_treat_time = 3 SECONDS
	wound_flags = (FLESH_WOUND | ACCEPTS_GAUZE)

	/// How much blood we start losing when this wound is first applied
	var/initial_flow
	/// When we have less than this amount of flow, either from treatment or clotting, we demote to a lower cut or are healed of the wound
	var/minimum_flow
	/// How much our blood_flow will naturally decrease per second, not only do larger cuts bleed more blood faster, they clot slower (higher number = clot quicker, negative = opening up)
	var/clot_rate

	/// Once the blood flow drops below minimum_flow, we demote it to this type of wound. If there's none, we're all better
	var/demotes_to

	/// The maximum flow we've had so far
	var/highest_flow

	/// A bad system I'm using to track the worst scar we earned (since we can demote, we want the biggest our wound has been, not what it was when it was cured (probably moderate))
	var/datum/scar/highest_scar

/datum/wound/slash/wound_injury(datum/wound/slash/old_wound = null, attack_direction = null)
	if(old_wound)
		set_blood_flow(max(old_wound.blood_flow, initial_flow))
		if(old_wound.severity > severity && old_wound.highest_scar)
			set_highest_scar(old_wound.highest_scar)
			old_wound.clear_highest_scar()
	else
		set_blood_flow(initial_flow)
		if(!no_bleeding && attack_direction && victim.blood_volume > BLOOD_VOLUME_OKAY)
			victim.spray_blood(attack_direction, severity)

	if(!highest_scar)
		var/datum/scar/new_scar = new
		set_highest_scar(new_scar)
		new_scar.generate(limb, src, add_to_scars=FALSE)

/datum/wound/slash/proc/set_highest_scar(datum/scar/new_scar)
	if(highest_scar)
		UnregisterSignal(highest_scar, COMSIG_PARENT_QDELETING)
	if(new_scar)
		RegisterSignal(new_scar, COMSIG_PARENT_QDELETING, PROC_REF(clear_highest_scar))
	highest_scar = new_scar

/datum/wound/slash/proc/clear_highest_scar(datum/source)
	SIGNAL_HANDLER
	set_highest_scar(null)

/datum/wound/slash/remove_wound(ignore_limb, replaced)
	if(!replaced && highest_scar)
		already_scarred = TRUE
		highest_scar.lazy_attach(limb)
	return ..()

/datum/wound/slash/get_examine_description(mob/user)
	if(!limb.current_gauze)
		return ..()

	var/list/msg = list("The cuts on [victim.p_their()] [limb.plaintext_zone] are wrapped with ")
	// how much life we have left in these bandages
	switch(limb.current_gauze.absorption_capacity)
		if(0 to 1.25)
			msg += "nearly ruined"
		if(1.25 to 2.75)
			msg += "badly worn"
		if(2.75 to 4)
			msg += "slightly bloodied"
		if(4 to INFINITY)
			msg += "clean"
	msg += " [limb.current_gauze.name]!"

	return "<B>[msg.Join()]</B>"

/datum/wound/slash/receive_damage(wounding_type, wounding_dmg, wound_bonus)
	if(victim.stat != DEAD && wound_bonus != CANT_WOUND && wounding_type == WOUND_SLASH) // can't stab dead bodies to make it bleed faster this way
		adjust_blood_flow(WOUND_SLASH_DAMAGE_FLOW_COEFF * wounding_dmg)

/datum/wound/slash/drag_bleed_amount()
	// say we have 3 severe cuts with 3 blood flow each, pretty reasonable
	// compare with being at 100 brute damage before, where you bled (brute/100 * 2), = 2 blood per tile
	var/bleed_amt = min(blood_flow * 0.1, 1) // 3 * 3 * 0.1 = 0.9 blood total, less than before! the share here is .3 blood of course.

	if(limb.current_gauze) // gauze stops all bleeding from dragging on this limb, but wears the gauze out quicker
		limb.seep_gauze(bleed_amt * 0.33)
		return

	return bleed_amt

/datum/wound/slash/get_bleed_rate_of_change()
	//basically if a species doesn't bleed, the wound is stagnant and will not heal on it's own (nor get worse)
	if(no_bleeding)
		return BLOOD_FLOW_STEADY
	if(HAS_TRAIT(victim, TRAIT_BLOODY_MESS))
		return BLOOD_FLOW_INCREASING
	if(limb.current_gauze || clot_rate > 0)
		return BLOOD_FLOW_DECREASING
	if(clot_rate < 0)
		return BLOOD_FLOW_INCREASING

/datum/wound/slash/handle_process(delta_time, times_fired)
	// in case the victim has the NOBLOOD trait, the wound will simply not clot on it's own
	if(!no_bleeding)
		if(victim.stat == DEAD)
			adjust_blood_flow(-max(clot_rate, WOUND_SLASH_DEAD_CLOT_MIN) * delta_time)
			if(blood_flow < minimum_flow)
				if(demotes_to)
					replace_wound(demotes_to)
					return
				qdel(src)
				return

		set_blood_flow(min(blood_flow, WOUND_SLASH_MAX_BLOODFLOW))

		if(HAS_TRAIT(victim, TRAIT_BLOODY_MESS))
			adjust_blood_flow(0.25) // old heparin used to just add +2 bleed stacks per tick, this adds 0.5 bleed flow to all open cuts which is probably even stronger as long as you can cut them first

	//gauze always reduces blood flow, even for non bleeders
	if(limb.current_gauze)
		if(clot_rate > 0)
			adjust_blood_flow(-clot_rate * delta_time)
		adjust_blood_flow(-limb.current_gauze.absorption_rate * delta_time)
		limb.seep_gauze(limb.current_gauze.absorption_rate * delta_time)
	//otherwise, only clot if it's a bleeder
	else if(!no_bleeding)
		adjust_blood_flow(-clot_rate * delta_time)

	if(blood_flow > highest_flow)
		highest_flow = blood_flow

	if(blood_flow < minimum_flow)
		if(demotes_to)
			replace_wound(demotes_to)
		else
			to_chat(victim, span_green("The cut on your [limb.plaintext_zone] has [no_bleeding ? "healed up" : "stopped bleeding"]!"))
			qdel(src)

/datum/wound/slash/on_stasis(delta_time, times_fired)
	if(blood_flow >= minimum_flow)
		return
	if(demotes_to)
		replace_wound(demotes_to)
		return
	qdel(src)

/* BEWARE, THE BELOW NONSENSE IS MADNESS. bones.dm looks more like what I have in mind and is sufficiently clean, don't pay attention to this messiness */

/datum/wound/slash/check_grab_treatments(obj/item/I, mob/user)
	if(istype(I, /obj/item/gun/energy/laser))
		return TRUE
	if(I.get_temperature()) // if we're using something hot but not a cautery, we need to be aggro grabbing them first, so we don't try treating someone we're eswording
		return TRUE

/datum/wound/slash/treat(obj/item/I, mob/user)
	if(istype(I, /obj/item/gun/energy/laser))
		las_cauterize(I, user)
	else if(I.tool_behaviour == TOOL_CAUTERY || I.get_temperature())
		tool_cauterize(I, user)
	else if(istype(I, /obj/item/stack/medical/suture))
		suture(I, user)

/datum/wound/slash/try_handling(mob/living/carbon/human/user)
	if(user.pulling != victim || user.zone_selected != limb.body_zone || !isfelinid(user) || !victim.try_inject(user, injection_flags = INJECT_TRY_SHOW_ERROR_MESSAGE))
		return FALSE
	if(DOING_INTERACTION_WITH_TARGET(user, victim))
		to_chat(user, span_warning("You're already interacting with [victim]!"))
		return
	if(user.is_mouth_covered())
		to_chat(user, span_warning("Your mouth is covered, you can't lick [victim]'s wounds!"))
		return
	if(!user.getorganslot(ORGAN_SLOT_TONGUE))
		to_chat(user, span_warning("You can't lick wounds without a tongue!")) // f in chat
		return

	lick_wounds(user)
	return TRUE

/// if a felinid is licking this cut to reduce bleeding
/datum/wound/slash/proc/lick_wounds(mob/living/carbon/human/user)
	// transmission is one way patient -> felinid since google said cat saliva is antiseptic or whatever, and also because felinids are already risking getting beaten for this even without people suspecting they're spreading a deathvirus
	for(var/i in victim.diseases)
		var/datum/disease/iter_disease = i
		if(iter_disease.spread_flags & (DISEASE_SPREAD_SPECIAL | DISEASE_SPREAD_NON_CONTAGIOUS))
			continue
		user.ForceContractDisease(iter_disease)

	user.visible_message(span_notice("[user] begins licking the wounds on [victim]'s [limb.plaintext_zone]."), span_notice("You begin licking the wounds on [victim]'s [limb.plaintext_zone]..."), ignored_mobs=victim)
	to_chat(victim, span_notice("[user] begins to lick the wounds on your [limb.plaintext_zone]."))
	if(!do_after(user, base_treat_time, target=victim, extra_checks = CALLBACK(src, PROC_REF(still_exists))))
		return

	user.visible_message(span_notice("[user] licks the wounds on [victim]'s [limb.plaintext_zone]."), span_notice("You lick some of the wounds on [victim]'s [limb.plaintext_zone]"), ignored_mobs=victim)
	to_chat(victim, span_green("[user] licks the wounds on your [limb.plaintext_zone]!"))
	adjust_blood_flow(-0.5)

	if(blood_flow > minimum_flow)
		try_handling(user)
	else if(demotes_to)
		to_chat(user, span_green("You successfully lower the severity of [victim]'s cuts."))

/datum/wound/slash/on_xadone(power)
	. = ..()
	adjust_blood_flow(-0.03 * power) // i think it's like a minimum of 3 power, so .09 blood_flow reduction per tick is pretty good for 0 effort

/datum/wound/slash/on_synthflesh(power)
	. = ..()
	adjust_blood_flow(-0.075 * power) // 20u * 0.075 = -1.5 blood flow, pretty good for how little effort it is

/// If someone's putting a laser gun up to our cut to cauterize it
/datum/wound/slash/proc/las_cauterize(obj/item/gun/energy/laser/lasgun, mob/user)
	var/self_penalty_mult = (user == victim ? 1.25 : 1)
	user.visible_message(span_warning("[user] begins aiming [lasgun] directly at [victim]'s [limb.plaintext_zone]..."), span_userdanger("You begin aiming [lasgun] directly at [user == victim ? "your" : "[victim]'s"] [limb.plaintext_zone]..."))
	if(!do_after(user, base_treat_time  * self_penalty_mult, target=victim, extra_checks = CALLBACK(src, PROC_REF(still_exists))))
		return
	var/damage = lasgun.chambered.loaded_projectile.damage
	lasgun.chambered.loaded_projectile.wound_bonus -= 30
	lasgun.chambered.loaded_projectile.damage *= self_penalty_mult
	if(!lasgun.process_fire(victim, victim, TRUE, null, limb.body_zone))
		return
	victim.emote("scream")
	adjust_blood_flow(-1 * (damage / (5 * self_penalty_mult))) // 20 / 5 = 4 bloodflow removed, p good
	victim.visible_message(span_warning("The cuts on [victim]'s [limb.plaintext_zone] scar over!"))

/// If someone is using either a cautery tool or something with heat to cauterize this cut
/datum/wound/slash/proc/tool_cauterize(obj/item/I, mob/user)
	var/improv_penalty_mult = (I.tool_behaviour == TOOL_CAUTERY ? 1 : 1.25) // 25% longer and less effective if you don't use a real cautery
	var/self_penalty_mult = (user == victim ? 1.5 : 1) // 50% longer and less effective if you do it to yourself

	user.visible_message(span_danger("[user] begins cauterizing [victim]'s [limb.plaintext_zone] with [I]..."), span_warning("You begin cauterizing [user == victim ? "your" : "[victim]'s"] [limb.plaintext_zone] with [I]..."))
	if(!do_after(user, base_treat_time * self_penalty_mult * improv_penalty_mult, target=victim, extra_checks = CALLBACK(src, PROC_REF(still_exists))))
		return
	var/bleeding_wording = (no_bleeding ? "cuts" : "bleeding")
	user.visible_message(span_green("[user] cauterizes some of the [bleeding_wording] on [victim]."), span_green("You cauterize some of the [bleeding_wording] on [victim]."))
	limb.receive_damage(burn = 2 + severity, wound_bonus = CANT_WOUND)
	if(prob(30))
		victim.emote("scream")
	var/blood_cauterized = (0.6 / (self_penalty_mult * improv_penalty_mult))
	adjust_blood_flow(-blood_cauterized)

	if(blood_flow > minimum_flow)
		try_treating(I, user)
	else if(demotes_to)
		to_chat(user, span_green("You successfully lower the severity of [user == victim ? "your" : "[victim]'s"] cuts."))

/// If someone is using a suture to close this cut
/datum/wound/slash/proc/suture(obj/item/stack/medical/suture/I, mob/user)
	var/self_penalty_mult = (user == victim ? 1.4 : 1)
	user.visible_message(span_notice("[user] begins stitching [victim]'s [limb.plaintext_zone] with [I]..."), span_notice("You begin stitching [user == victim ? "your" : "[victim]'s"] [limb.plaintext_zone] with [I]..."))

	if(!do_after(user, base_treat_time * self_penalty_mult, target=victim, extra_checks = CALLBACK(src, PROC_REF(still_exists))))
		return
	var/bleeding_wording = (no_bleeding ? "cuts" : "bleeding")
	user.visible_message(span_green("[user] stitches up some of the [bleeding_wording] on [victim]."), span_green("You stitch up some of the [bleeding_wording] on [user == victim ? "yourself" : "[victim]"]."))
	var/blood_sutured = I.stop_bleeding / self_penalty_mult
	adjust_blood_flow(-blood_sutured)
	limb.heal_damage(I.heal_brute, I.heal_burn)
	I.use(1)

	if(blood_flow > minimum_flow)
		try_treating(I, user)
	else if(demotes_to)
		to_chat(user, span_green("You successfully lower the severity of [user == victim ? "your" : "[victim]'s"] cuts."))

/datum/wound/slash/moderate
	name = "Rough Abrasion"
	desc = "Patient's skin has been badly scraped, generating moderate blood loss."
	treat_text = "Application of clean bandages or first-aid grade sutures, followed by food and rest."
	examine_desc = "has an open cut"
	occur_text = "is cut open, slowly leaking blood"
	sound_effect = 'sound/effects/wounds/blood1.ogg'
	severity = WOUND_SEVERITY_MODERATE
	initial_flow = 2
	minimum_flow = 0.5
	clot_rate = 0.05
	threshold_minimum = 20
	threshold_penalty = 10
	status_effect_type = /datum/status_effect/wound/slash/moderate
	scar_keyword = "slashmoderate"

/datum/wound/slash/moderate/update_descriptions()
	if(no_bleeding)
		occur_text = "is cut open"

/datum/wound/slash/severe
	name = "Open Laceration"
	desc = "Patient's skin is ripped clean open, allowing significant blood loss."
	treat_text = "Speedy application of first-aid grade sutures and clean bandages, followed by vitals monitoring to ensure recovery."
	examine_desc = "has a severe cut"
	occur_text = "is ripped open, veins spurting blood"
	sound_effect = 'sound/effects/wounds/blood2.ogg'
	severity = WOUND_SEVERITY_SEVERE
	initial_flow = 3.25
	minimum_flow = 2.75
	clot_rate = 0.03
	threshold_minimum = 50
	threshold_penalty = 25
	demotes_to = /datum/wound/slash/moderate
	status_effect_type = /datum/status_effect/wound/slash/severe
	scar_keyword = "slashsevere"

/datum/wound/slash/severe/update_descriptions()
	if(no_bleeding)
		occur_text = "is ripped open"

/datum/wound/slash/critical
	name = "Weeping Avulsion"
	desc = "Patient's skin is completely torn open, along with significant loss of tissue. Extreme blood loss will lead to quick death without intervention."
	treat_text = "Immediate bandaging and either suturing or cauterization, followed by supervised resanguination."
	examine_desc = "is carved down to the bone, spraying blood wildly"
	examine_desc = "is carved down to the bone"
	occur_text = "is torn open, spraying blood wildly"
	occur_text = "is torn open"
	sound_effect = 'sound/effects/wounds/blood3.ogg'
	severity = WOUND_SEVERITY_CRITICAL
	initial_flow = 4
	minimum_flow = 3.85
	clot_rate = -0.015 // critical cuts actively get worse instead of better
	threshold_minimum = 80
	threshold_penalty = 40
	demotes_to = /datum/wound/slash/severe
	status_effect_type = /datum/status_effect/wound/slash/critical
	scar_keyword = "slashcritical"
	wound_flags = (FLESH_WOUND | ACCEPTS_GAUZE | MANGLES_FLESH)

/datum/wound/slash/moderate/many_cuts
	name = "Numerous Small Slashes"
	desc = "Patient's skin has numerous small slashes and cuts, generating moderate blood loss."
	examine_desc = "has a ton of small cuts"
	occur_text = "is cut numerous times, leaving many small slashes."

// Subtype for cleave (heretic spell)
/datum/wound/slash/critical/cleave
	name = "Burning Avulsion"
	examine_desc = "is ruptured, spraying blood wildly"
	clot_rate = 0.01

/datum/wound/slash/critical/cleave/update_descriptions()
	if(no_bleeding)
		occur_text = "is ruptured"

*/