homing projectiles + wizard spell (#21752)

code/modules/projectiles/projectile/homing_projectiles.dm

@@ -0,0 +1,52 @@
+/obj/item/projectile/homing
+	name = "smart bullet"
+	icon_state = "bullet"
+	var/homing_active = TRUE
+
+/obj/item/projectile/homing/pixel_move(trajectory_multiplier)
+	. = ..()
+	if(!homing_active)
+		return
+
+	var/turf/current_turf = get_turf(src)
+	var/turf/target_turf = get_turf(original)
+	if(current_turf == target_turf)
+		homing_active = FALSE
+		return
+
+	if(!current_turf || !target_turf)
+		return
+
+	var/dx = target_turf.x - current_turf.x
+	var/dy = target_turf.y - current_turf.y
+	var/angle = ATAN2(dy, dx)
+	set_angle(angle)
+
+/obj/item/projectile/homing/magic
+	name = "bolt of nothing"
+	icon_state = "energy"
+	damage = 0
+	damage_type = OXY
+	nodamage = 1
+	armour_penetration_percentage = 100
+	flag = MAGIC
+
+/obj/item/projectile/homing/magic/toolbox
+	name = "magic toolbox"
+	icon = 'icons/obj/storage.dmi'
+	icon_state = "toolbox_default"
+	hitsound = 'sound/weapons/smash.ogg'
+	damage = 30
+	damage_type = BRUTE
+
+/obj/item/projectile/homing/magic/toolbox/on_range()
+	. = ..()
+	new /obj/item/storage/toolbox(get_turf(src))
+
+/obj/item/projectile/homing/magic/toolbox/on_hit(atom/target, blocked, hit_zone)
+	. = ..()
+	var/obj/item/storage/toolbox/T = new /obj/item/storage/toolbox(get_turf(src))
+	if(ishuman(target))
+		var/mob/living/carbon/human/H = target
+		var/obj/item/organ/external/E = pick(H.bodyparts)
+		E.add_embedded_object(T)