CHOMPStation2/code/modules/projectiles/projectile/bullets.dm

/obj/item/projectile/bullet
	name = "bullet"
	icon_state = "bullet"
	damage = 60
	damage_type = BRUTE
	nodamage = 0
	check_armour = "bullet"
	embed = 1
	sharp = 1
	var/mob_passthrough_check = 0

	muzzle_type = /obj/effect/projectile/bullet/muzzle

/obj/item/projectile/bullet/on_hit(var/atom/target, var/blocked = 0)
	if (..(target, blocked))
		var/mob/living/L = target
		shake_camera(L, 3, 2)

/obj/item/projectile/bullet/attack_mob(var/mob/living/target_mob, var/distance, var/miss_modifier)
	if(penetrating > 0 && damage > 20 && prob(damage))
		mob_passthrough_check = 1
	else
		mob_passthrough_check = 0
	return ..()

/obj/item/projectile/bullet/can_embed()
	//prevent embedding if the projectile is passing through the mob
	if(mob_passthrough_check)
		return 0
	return ..()

/obj/item/projectile/bullet/check_penetrate(var/atom/A)
	if(!A || !A.density) return 1 //if whatever it was got destroyed when we hit it, then I guess we can just keep going

	if(istype(A, /obj/mecha))
		return 1 //mecha have their own penetration handling

	if(ismob(A))
		if(!mob_passthrough_check)
			return 0
		if(iscarbon(A))
			damage *= 0.7 //squishy mobs absorb KE
		return 1

	var/chance = 0
	if(istype(A, /turf/simulated/wall))
		var/turf/simulated/wall/W = A
		chance = round(damage/W.material.integrity*180)
	else if(istype(A, /obj/machinery/door))
		var/obj/machinery/door/D = A
		chance = round(damage/D.maxhealth*180)
		if(D.glass) chance *= 2
	else if(istype(A, /obj/structure/girder))
		chance = 100
	else if(istype(A, /obj/machinery) || istype(A, /obj/structure))
		chance = damage

	if(prob(chance))
		if(A.opacity)
			//display a message so that people on the other side aren't so confused
			A.visible_message("<span class='warning'>\The [src] pierces through \the [A]!</span>")
		return 1

	return 0

//For projectiles that actually represent clouds of projectiles
/obj/item/projectile/bullet/pellet
	name = "shrapnel" //'shrapnel' sounds more dangerous (i.e. cooler) than 'pellet'
	damage = 20
	//icon_state = "bullet" //TODO: would be nice to have it's own icon state
	var/pellets = 4			//number of pellets
	var/range_step = 2		//effective pellet count decreases every few tiles
	var/base_spread = 90	//lower means the pellets spread more across body parts
	var/spread_step = 10	//higher means the pellets spread more across body parts with distance

/obj/item/projectile/bullet/pellet/Bumped()
	. = ..()
	bumped = 0 //can hit all mobs in a tile. pellets is decremented inside attack_mob so this should be fine.

/obj/item/projectile/bullet/pellet/attack_mob(var/mob/living/target_mob, var/distance)
	if (pellets < 0) return 1

	var/pellet_loss = round((distance - 1)/range_step) //pellets lost due to distance
	var/total_pellets = max(pellets - pellet_loss, 1)
	var/spread = max(base_spread - (spread_step*distance), 0)
	var/hits = 0
	for (var/i in 1 to total_pellets)
		//pellet hits spread out across different zones, but 'aim at' the targeted zone with higher probability
		//whether the pellet actually hits the def_zone or a different zone should still be determined by the parent using get_zone_with_miss_chance().
		var/old_zone = def_zone
		def_zone = ran_zone(def_zone, spread)
		if (..()) hits++
		def_zone = old_zone //restore the original zone the projectile was aimed at

	pellets -= hits //each hit reduces the number of pellets left
	if (hits >= total_pellets || pellets <= 0)
		return 1
	return 0

/* short-casing projectiles, like the kind used in pistols or SMGs */

/obj/item/projectile/bullet/pistol
	damage = 20

/obj/item/projectile/bullet/pistol/medium
	damage = 25

/obj/item/projectile/bullet/pistol/strong //revolvers and matebas
	damage = 60

/obj/item/projectile/bullet/pistol/rubber //"rubber" bullets
	name = "rubber bullet"
	check_armour = "melee"
	damage = 10
	agony = 40
	embed = 0
	sharp = 0

/* shotgun projectiles */

/obj/item/projectile/bullet/shotgun
	name = "slug"
	damage = 60

/obj/item/projectile/bullet/shotgun/beanbag		//because beanbags are not bullets
	name = "beanbag"
	check_armour = "melee"
	damage = 20
	agony = 60
	embed = 0
	sharp = 0

//Should do about 80 damage at 1 tile distance (adjacent), and 50 damage at 3 tiles distance.
//Overall less damage than slugs in exchange for more damage at very close range and more embedding
/obj/item/projectile/bullet/pellet/shotgun
	name = "shrapnel"
	damage = 13
	pellets = 6
	range_step = 1
	spread_step = 10

/* "Rifle" rounds */

/obj/item/projectile/bullet/rifle/a762
	damage = 30
	penetrating = 1

/obj/item/projectile/bullet/rifle/a145
	damage = 80
	stun = 3
	weaken = 3
	penetrating = 5
	hitscan = 1 //so the PTR isn't useless as a sniper weapon

/obj/item/projectile/bullet/rifle/a556
	damage = 40
	penetrating = 1

/* Miscellaneous */

/obj/item/projectile/bullet/suffocationbullet//How does this even work?
	name = "co bullet"
	damage = 20
	damage_type = OXY

/obj/item/projectile/bullet/cyanideround
	name = "poison bullet"
	damage = 40
	damage_type = TOX

/obj/item/projectile/bullet/burstbullet
	name = "exploding bullet"
	damage = 20
	embed = 0
	edge = 1

/obj/item/projectile/bullet/gyro/on_hit(var/atom/target, var/blocked = 0)
	if(isturf(target))
		explosion(target, -1, 0, 2)
	..()

/obj/item/projectile/bullet/blank
	invisibility = 101
	damage = 1
	embed = 0

/* Practice */

/obj/item/projectile/bullet/pistol/practice
	damage = 5

/obj/item/projectile/bullet/rifle/a556/practice
	damage = 5

/obj/item/projectile/bullet/shotgun/practice
	name = "practice"
	damage = 5