add pint sized rune to shrink tamed animals

lucky_block.lua

@@ -1,4 +1,7 @@
 
+local S = minetest.get_translator("mobs")
+
+
 lucky_block:add_blocks({
 	{"dro", {"mobs:meat_raw"}, 5},
 	{"dro", {"mobs:meat"}, 5},
@@ -13,3 +16,90 @@ lucky_block:add_blocks({
 	{"dro", {"mobs:fence_top"}, 12},
 	{"lig"}
 })
+
+
+-- pint sized rune
+
+minetest.register_craftitem(":mobs:pint_sized_rune", {
+	description = S("Pint Sized Rune"),
+	inventory_image = "mobs_pint_sized_rune.png",
+	groups = {flammable = 2},
+
+	on_use = function(itemstack, user, pointed_thing)
+
+		if pointed_thing.type ~= "object" then
+			return
+		end
+
+		local name = user and user:get_player_name() or ""
+		local tool = user and user:get_wielded_item()
+		local tool_name = tool:get_name()
+
+		if tool_name ~= "mobs:pint_sized_rune" then
+			return
+		end
+
+		local self = pointed_thing.ref:get_luaentity()
+
+		if not self._cmi_is_mob then
+			minetest.chat_send_player(name, S("Not a Mobs Redo mob!"))
+			return
+		end
+
+		if not self.tamed then
+			minetest.chat_send_player(name, S("Not tamed!"))
+			return
+		end
+
+		if self.pint_size_potion then
+			minetest.chat_send_player(name, S("Potion already applied!"))
+			return
+		end
+
+		if not mobs.is_creative(user:get_player_name()) then
+			tool:take_item() -- take 1 rune
+			user:set_wielded_item(tool)
+		end
+
+		local pos = self.object:get_pos()
+		local prop = self.object:get_properties()
+
+		vis_size = {x = self.base_size.x * .5, y = self.base_size.y * .5}
+
+		self.base_size = vis_size
+
+		colbox = {
+			self.base_colbox[1] * .5, self.base_colbox[2] * .5,
+			self.base_colbox[3] * .5, self.base_colbox[4] * .5,
+			self.base_colbox[5] * .5, self.base_colbox[6] * .5}
+
+		self.base_colbox = colbox
+
+		selbox = {
+			self.base_selbox[1] * .5, self.base_selbox[2] * .5,
+			self.base_selbox[3] * .5, self.base_selbox[4] * .5,
+			self.base_selbox[5] * .5, self.base_selbox[6] * .5}
+
+		self.base_selbox = selbox
+
+		self.object:set_properties({
+			visual_size = vis_size,
+			collisionbox = colbox,
+			selectionbox = selbox
+		})
+
+		self.pint_size_potion = true
+
+		pos.y = pos.y + prop.collisionbox[5]
+
+		mobs:effect(pos, 25, "mobs_protect_particle.png", 0.5, 4, 2, 15)
+
+		self:mob_sound("mobs_spell")
+	end
+})
+
+minetest.register_craft({
+	output = "lucky_block:pint_sized_rune",
+	recipe = {{ "lucky_block:pint_sized_potion", "mobs:protector" }}
+})
+