[IDED] Replaces UZI domain reward with ballistic chameleon gun (#87600)

## About The Pull Request

Replaces the mini-UZI beach battle domain reward with a ballistic
chameleon gun.

Also added a separate possible reward for an uzi bitrunning disk.

code/modules/bitrunning/objects/disks.dm

@@ -185,3 +185,9 @@
 		/obj/item/crusher_trophy/vortex_talisman,
 		/obj/item/crusher_trophy/ice_demon_cube,
 	)
+
+/obj/item/bitrunning_disk/item/mini_uzi
+	name = "bitrunning gear: mini-uzi"
+	selectable_items = list(
+		/obj/item/gun/ballistic/automatic/mini_uzi,
+	)

code/modules/bitrunning/virtual_domain/domains/island_brawl.dm

@@ -13,10 +13,10 @@
 		/obj/item/toy/beach_ball = 2,
 		/obj/item/clothing/shoes/sandal = 1,
 		/obj/item/clothing/glasses/sunglasses = 1,
-		/obj/item/gun/ballistic/automatic/mini_uzi = 1,
+		/obj/item/gun/energy/laser/chameleon/ballistic_only = 1,
+		/obj/item/bitrunning_disk/item/mini_uzi = 1,
 	)
 
-
 /datum/lazy_template/virtual_domain/island_brawl/setup_domain(list/created_atoms)
 	for(var/obj/effect/mob_spawn/ghost_role/human/virtual_domain/islander/spawner in created_atoms)
 		custom_spawns += spawner

code/modules/clothing/chameleon/chameleon_action_subtypes.dm

@@ -301,3 +301,7 @@
 	. = ..()
 	for(var/other_type in other_cham_types)
 		add_chameleon_items(other_type)
+
+/datum/action/item_action/chameleon/change/gun/ballistic
+	chameleon_type = /obj/item/gun/ballistic
+	chameleon_name = "Gun"

code/modules/clothing/chameleon/chameleon_gun.dm

@@ -11,14 +11,15 @@
 
 	/// The badmin mode. Makes your projectiles act like the real deal.
 	var/real_hits = FALSE
+	/// how it looks by default.
+	var/default_look = /obj/item/gun/energy/laser
 
 /obj/item/gun/energy/laser/chameleon/Initialize(mapload)
 	. = ..()
-	recharge_newshot()
 	AddElement(/datum/element/empprotection, EMP_PROTECT_SELF|EMP_PROTECT_CONTENTS)
 	// Init order shenanigans dictate we have to do this last so we can't just use `active_type`
 	var/datum/action/item_action/chameleon/change/gun/gun_action = locate() in actions
-	gun_action?.update_look(/obj/item/gun/energy/laser)
+	gun_action?.update_look(default_look)
 
 /**
  * Description: Resets the currently loaded chameleon variables, essentially resetting it to brand new.
@@ -54,36 +55,34 @@
 	inhand_x_dimension = gun_to_set.inhand_x_dimension
 	inhand_y_dimension = gun_to_set.inhand_y_dimension
 
+	// We dupe this casing and then delete it at the end, to grab the projectile.
+	var/obj/item/ammo_casing/casing_to_dupe
+
 	if(istype(gun_to_set, /obj/item/gun/ballistic))
 		var/obj/item/gun/ballistic/ball_gun = gun_to_set
-		var/obj/item/ammo_box/ball_ammo = new ball_gun.spawn_magazine_type(gun_to_set)
-		qdel(ball_gun)
-
-		if(!istype(ball_ammo) || !ball_ammo.ammo_type)
-			qdel(ball_ammo)
-			return FALSE
-
-		var/obj/item/ammo_casing/ball_cartridge = new ball_ammo.ammo_type(gun_to_set)
-		set_chameleon_ammo(ball_cartridge)
+		// We also need to copy the starting magazine for ballistics.
+		casing_to_dupe = initial(ball_gun.spawn_magazine_type.ammo_type)
+		casing_to_dupe = new casing_to_dupe(src)
 
 	else if(istype(gun_to_set, /obj/item/gun/magic))
 		var/obj/item/gun/magic/magic_gun = gun_to_set
-		var/obj/item/ammo_casing/magic_cartridge = new magic_gun.ammo_type(gun_to_set)
-		set_chameleon_ammo(magic_cartridge)
+		casing_to_dupe = new magic_gun.ammo_type(src)
 
 	else if(istype(gun_to_set, /obj/item/gun/energy))
 		var/obj/item/gun/energy/energy_gun = gun_to_set
+		// Even if the energy gun has multiple ammo types, we copy the first. Energy guns always (should) have a list in ammo_type.
 		if(islist(energy_gun.ammo_type) && energy_gun.ammo_type.len)
-			var/obj/item/ammo_casing/energy_cartridge = energy_gun.ammo_type[1]
-			set_chameleon_ammo(energy_cartridge)
+			var/obj/item/first_casing = energy_gun.ammo_type[1]
+			casing_to_dupe = new first_casing.type(src)
 
 	else if(istype(gun_to_set, /obj/item/gun/syringe))
-		var/obj/item/ammo_casing/syringe_cartridge = new /obj/item/ammo_casing/syringegun(src)
-		set_chameleon_ammo(syringe_cartridge)
+		casing_to_dupe = new /obj/item/ammo_casing/syringegun(src)
 
 	else
-		var/obj/item/ammo_casing/default_cartridge = new /obj/item/ammo_casing(src)
-		set_chameleon_ammo(default_cartridge)
+		casing_to_dupe = new /obj/item/ammo_casing(src)
+
+	set_chameleon_ammo(casing_to_dupe)
+	qdel(casing_to_dupe)
 
 /**
  * Description: Sets the ammo type our gun should have.
@@ -155,3 +154,11 @@
 	var/obj/item/gun/new_gun = new guntype(src)
 	set_chameleon_gun(new_gun)
 	qdel(new_gun)
+
+/obj/item/gun/energy/laser/chameleon/ballistic_only
+	actions_types = list(/datum/action/item_action/chameleon/change/gun/ballistic)
+	default_look = /obj/item/gun/ballistic/automatic/mini_uzi
+
+/obj/item/gun/energy/laser/chameleon/ballistic_only/Initialize(mapload)
+	. = ..()
+	set_chameleon_disguise(default_look)