Updates Yautja Plasma Rifle (#3942)

# Explain Changes

Makes several changes to the Predators Plasma Rifle to improve its
usability, these changes are.

- Removes the mini-HPC mode
- Increases standard bolt rounds to have 50 penetration, retaining their
default 55 damage
- Makes the weapon a two-handed weapon, allowing the user to increase
their accuracy
- Updates desc to indicate this is a combat weapon and not a hunting
weapon

# Explain why it's good for the game

The Plasma Rifle is a hold over from when it used to be a dedicated
hunting weapon. In the curret iteration of it being a weapon that only
appears when an abomination appears, it is very lacklustre. Its default
fire mode deals incredibly low damage (usually only dealing 10 to 20
points of damage per shot to xenos) and its mini-HPC fire setting is
quite useless against the Abomination, dealing negligble damage and not
stunning, with it only being useful to stun regular Xenomorphs. Its low
accuracy at range further diminishes its usefulness when compared to the
standard Plasma Pistol let alone a melee weapon.

Furthermore the incredibly long recharge time and the fact firing the
gun's bolt mode would drain the battery further means the only viable
strategy to use the Plasma Rifle is to hoard them, only shoot once for
its mini-HPC, then ditch them until they recharge in the future.

This update will boost its effectiveness as a more generalist assault
weapon. While its maximum DPS is lower than a good Predator using their
melee, it now allows a Predator to apply consistent and reliable damage
at range that is effective against xenomorphs

However the lower ROF will give Xenos a chance to disengage, or allow a
Predator a chance to cease fire if they just want to let a Xeno retreat
and stop harassing it as it pursues a Predalien.


# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

![Screenshot 2023-07-19 17 53
35](https://github.com/cmss13-devs/cmss13/assets/6595389/5865157c-8650-41b2-a229-cb2aeca6af6c)
New in-hand sprites

</details>


# Changelog
:cl:
balance: Yautja's Plasma Rifle has been rebalanced to make it a more
effective assault weapon against xenomorphs. It has lost its mini-high
explosive fire mode but its default fire mode now mostly ignores
xenomorph armor.
/:cl:

---------

Co-authored-by: Steelpoint <[email protected]>

code/modules/cm_preds/yaut_weapons.dm

@@ -823,7 +823,7 @@
 
 /obj/item/weapon/gun/energy/yautja/plasmarifle
 	name = "plasma rifle"
-	desc = "A long-barreled heavy plasma weapon capable of taking down large game. It has a mounted scope for distant shots and an integrated battery."
+	desc = "A long-barreled heavy plasma weapon. Intended for combat, not hunting. Has an integrated battery that allows for a functionally unlimited amount of shots to be discharged. Equipped with an internal gyroscopic stabilizer allowing its operator to fire the weapon one-handed if desired"
 	icon_state = "plasmarifle"
 	item_state = "plasmarifle"
 	unacidable = TRUE
@@ -836,7 +836,7 @@
 	var/charge_time = 0
 	var/last_regen = 0
 	flags_gun_features = GUN_UNUSUAL_DESIGN
-	flags_item = ITEM_PREDATOR
+	flags_item = ITEM_PREDATOR|TWOHANDED
 
 /obj/item/weapon/gun/energy/yautja/plasmarifle/Initialize(mapload, spawn_empty)
 	. = ..()
@@ -889,12 +889,8 @@
 	return ..()
 
 /obj/item/weapon/gun/energy/yautja/plasmarifle/load_into_chamber()
-	if(charge_time >= 80)
-		ammo = GLOB.ammo_list[/datum/ammo/energy/yautja/rifle/blast]
-		charge_time -= 80
-	else
-		ammo = GLOB.ammo_list[/datum/ammo/energy/yautja/rifle/bolt]
-		charge_time -= 10
+	ammo = GLOB.ammo_list[/datum/ammo/energy/yautja/rifle/bolt]
+	charge_time -= 10
 	var/obj/item/projectile/projectile = create_bullet(ammo, initial(name))
 	projectile.SetLuminosity(1)
 	in_chamber = projectile

code/modules/projectiles/ammo_datums.dm

@@ -2367,32 +2367,7 @@
 	flags_ammo_behavior = AMMO_IGNORE_RESIST
 
 	damage = 55
-
-/datum/ammo/energy/yautja/rifle/blast
-	name = "plasma shatterer"
-	icon_state = "bluespace"
-	damage_type = BURN
-
-	shell_speed = AMMO_SPEED_TIER_4
-	damage = 40
-
-/datum/ammo/energy/yautja/rifle/blast/on_hit_mob(mob/M, obj/item/projectile/P)
-	var/L = get_turf(M)
-	cell_explosion(L, 90, 30, EXPLOSION_FALLOFF_SHAPE_LINEAR, null, P.weapon_cause_data)
-	..()
-
-/datum/ammo/energy/yautja/rifle/blast/on_hit_turf(turf/T, obj/item/projectile/P)
-	cell_explosion(T, 90, 30, EXPLOSION_FALLOFF_SHAPE_LINEAR, null, P.weapon_cause_data)
-	..()
-
-/datum/ammo/energy/yautja/rifle/blast/on_hit_obj(obj/O, obj/item/projectile/P)
-	cell_explosion(get_turf(O), 100, 30, EXPLOSION_FALLOFF_SHAPE_LINEAR, null, P.weapon_cause_data)
-	..()
-
-/datum/ammo/energy/yautja/rifle/blast/do_at_max_range(obj/item/projectile/P)
-	cell_explosion(get_turf(P), 100, 30, EXPLOSION_FALLOFF_SHAPE_LINEAR, null, P.weapon_cause_data)
-	..()
-
+	penetration = 50
 
 /*
 //======