Adds a freeze ray gun (#11114)

This pr adds a freeze ray gun. It works by reducing the mob's temperature until they freeze and get stuck inside ice for a while. The gun also has an alt-fire mode that fires ice bolt.

code/modules/projectiles/guns/energy/freezeray.dm

@@ -0,0 +1,20 @@
+/obj/item/gun/energy/freeze
+	name = "freeze ray gun"
+	desc = "A portable freezing ray gun designated to quickly lower temperatures."
+	icon = 'icons/obj/guns/freezeray.dmi'
+	icon_state = "icer"
+	item_state = "icer"
+	has_item_ratio = FALSE
+	fire_sound = 'sound/weapons/pulse3.ogg'
+
+	max_shots = 5
+
+	origin_tech = list(TECH_COMBAT = 2, TECH_MATERIAL = 4, TECH_POWER = 4)
+	slot_flags = SLOT_BELT
+
+	projectile_type = /obj/item/projectile/beam/freezer
+
+	firemodes = list(
+		list(mode_name="freeze", projectile_type= /obj/item/projectile/beam/freezer, fire_sound='sound/weapons/pulse3.ogg'),
+		list(mode_name="ice bolt", projectile_type= /obj/item/projectile/ice, fire_sound='sound/weapons/crossbow.ogg')
+		)

code/modules/projectiles/modular/laser_components.dm

@@ -445,3 +445,11 @@
 	icon_state = "xray"
 	firing_sound = 'sound/weapons/plasma_cutter.ogg'
 	origin_tech = list(TECH_COMBAT = 3, TECH_PHORON = 4, TECH_ILLEGAL = 4)
+
+/obj/item/laser_components/modulator/freeze
+	name = "freeze ray modulator"
+	desc = "Modulates the beam into freezing rays."
+	projectile = /obj/item/projectile/beam/freezer
+	icon_state = "blue"
+	firing_sound = 'sound/weapons/pulse3.ogg'
+	origin_tech = list(TECH_COMBAT = 3, TECH_MAGNET = 5, TECH_MATERIAL = 4)

code/modules/projectiles/projectile/beams.dm

@@ -443,4 +443,28 @@
 	damage = 20
 
 /obj/item/projectile/beam/tesla/paramount
-	damage = 25
+	damage = 25
+
+/obj/item/projectile/beam/freezer
+	name = "freezing ray"
+	icon_state = "bluelaser"
+	pass_flags = PASSTABLE
+	damage = 15
+	damage_type = BURN
+	check_armor = "energy"
+
+	muzzle_type = /obj/effect/projectile/muzzle/laser/blue
+	tracer_type = /obj/effect/projectile/tracer/laser/blue
+	impact_type = /obj/effect/projectile/impact/laser/blue
+
+/obj/item/projectile/beam/freezer/on_impact(atom/target)
+	. = ..()
+	if(isliving(target))
+		var/mob/living/L = target
+		L.bodytemperature -= 40
+
+		if(ishuman(L))
+			var/mob/living/carbon/human/H = L
+			if(H.bodytemperature <= H.species.cold_level_2)
+				new /obj/structure/closet/statue/ice(H.loc, H)
+				H.visible_message(SPAN_WARNING("\The [H] freezes!"))

code/modules/projectiles/projectile/special.dm

@@ -300,3 +300,10 @@
 	else
 		..()
 	return
+
+/obj/item/projectile/ice
+	name ="ice bolt"
+	icon_state= "icer_bolt"
+	damage = 15
+	damage_type = BRUTE
+	check_armor = "energy"

code/modules/research/designs/protolathe/modular_gun_designs.dm

@@ -242,4 +242,9 @@
 /datum/design/item/modular_weapon/modular_net
 	req_tech = list(TECH_COMBAT = 5, TECH_PHORON = 4, TECH_ILLEGAL = 4)
 	materials = list(DEFAULT_WALL_MATERIAL = 5000, MATERIAL_GLASS = 1000, MATERIAL_PHORON = 3000)
-	build_path = /obj/item/laser_components/modulator/net
+	build_path = /obj/item/laser_components/modulator/net
+
+/datum/design/item/modular_weapon/freezing_ray
+	req_tech = list(TECH_COMBAT = 3, TECH_MAGNET = 5, TECH_MATERIAL = 4)
+	materials = list(DEFAULT_WALL_MATERIAL = 2000, MATERIAL_GLASS = 1000, MATERIAL_URANIUM = 500)
+	build_path = /obj/item/laser_components/modulator/freeze