Fix sheep getting horny from eating grass

mods/mobs/api.lua

@@ -1722,7 +1722,7 @@ end
 
 -- Feeding, taming and breeding (thanks blert2112)
 
-function mobs:feed_tame(self, clicker, feed_count, breed)
+function mobs:feed_tame(self, clicker, feed_count, breed, effect)
    -- Feed a mob(mostly a wrapper to handle self.check_fed)
 
    local item = nil
@@ -1747,25 +1747,27 @@ function mobs:feed_tame(self, clicker, feed_count, breed)
 	    clicker:set_wielded_item(item)
          end
       end
-      mob_sound(self, self.sounds.eat, true)
 
-      local mobpos = self.object:get_pos()
-      minetest.add_particlespawner(
-      {
-         amount = 10,
-         time = 0.1,
-         minpos = {x = mobpos.x - 0.1, y = mobpos.y - 0.1, z = mobpos.z - 0.1},
-         maxpos = {x = mobpos.x + 0.1, y = mobpos.y + 0.1, z = mobpos.z + 0.1},
-         minvel = {x = -1, y = -1, z = -1},
-         maxvel = {x = 1, y = 0, z = 1},
-         minacc = {x = 0, y = 6, z = 0},
-         maxacc = {x = 0, y = 1, z = 0},
-         minexptime = 0.5,
-         maxexptime = 1,
-         minsize = 0.5,
-         maxsize = 2,
-         texture = "magicpuff.png"
-      })
+      if effect ~= false then
+         mob_sound(self, self.sounds.eat, true)
+         local mobpos = self.object:get_pos()
+         minetest.add_particlespawner(
+         {
+            amount = 10,
+            time = 0.1,
+            minpos = {x = mobpos.x - 0.1, y = mobpos.y - 0.1, z = mobpos.z - 0.1},
+            maxpos = {x = mobpos.x + 0.1, y = mobpos.y + 0.1, z = mobpos.z + 0.1},
+            minvel = {x = -1, y = -1, z = -1},
+            maxvel = {x = 1, y = 0, z = 1},
+            minacc = {x = 0, y = 6, z = 0},
+            maxacc = {x = 0, y = 1, z = 0},
+            minexptime = 0.5,
+            maxexptime = 1,
+            minsize = 0.5,
+            maxsize = 2,
+            texture = "magicpuff.png"
+         })
+      end
 
       self:check_fed(name, feed_count, breed)
 

mods/mobs/mob_sheep.lua

@@ -65,7 +65,7 @@ mobs:register_mob(
       on_replace = function(self, pos)
          minetest.set_node(pos, {name = self.replace_with})
 
-         if mobs:feed_tame(self, self.follow, 8, true) then
+         if mobs:feed_tame(self, self.follow, 8, false, false) then
             if self.gotten == false then
                self.object:set_properties(
                   {