Add in glowing spider eyes

mods/mob/init.lua

@@ -740,6 +740,26 @@ mobs.register_mob(
 	}
 )
 
+local spider_eyes = {}
+
+spider_eyes.initial_properties = {
+	visual = "mesh",
+	mesh = "spider_eyes.b3d",
+	textures = {"spider_eyes.png"},
+	pointable = false,
+	--visual_size = {x = 4, y = 4, z = 4},
+}
+spider_eyes.glow = -1
+spider_eyes.on_step = function(self)
+	if not self.owner or not self.owner:get_luaentity() then
+		--self.object:remove()
+	else
+		local owner_head_bone = self.owner:get_luaentity().head_bone
+		local position,rotation = self.owner:get_bone_position(owner_head_bone)
+		self.object:set_attach(self.owner, owner_head_bone, vector.new(0,0,0), rotation)
+	end
+end
+minetest.register_entity("mob:spider_eyes",spider_eyes)
 
 mobs.register_mob(
 	{
@@ -801,6 +821,9 @@ mobs.register_mob(
 	 group_attack = true,
 
 	 custom_on_activate = function(self)
+		local eyes = minetest.add_entity(self.object:get_pos(), "mob:spider_eyes")
+		eyes:set_attach(self.object, "body.head", vector.new(0,0,0), vector.new(0,0,0))
+		eyes:get_luaentity().owner = self.object
 		if math.random() > 0.998 then
 			local obj = minetest.add_entity(self.object:get_pos(),"mob:pig")
 			local obj2 = minetest.add_entity(self.object:get_pos(),"tnt:tnt")