Add Rubber Goo as replacement for the grinder (#578)

TechDudie

2021-02-09 43acec290067f9aca534647d46ba1f13cfeb377a

 technic/machines/register/compressor_recipes.lua

@@ -11,6 +11,8 @@
local recipes = {
   {"default:snowblock",          "default:ice"},
   {"default:sand 2",             "default:sandstone"},
   {"default:desert_sand 2",      "default:desert_sandstone"},
   {"default:silver_sand 2",      "default:silver_sandstone"},
   {"default:desert_sand",        "default:desert_stone"},
   {"technic:mixed_metal_ingot",  "technic:composite_plate"},
   {"default:copper_ingot 5",     "technic:copper_plate"},
@@ -20,11 +22,22 @@
}

-- defuse the default sandstone recipe, since we have the compressor to take over in a more realistic manner
minetest.register_craft({
   output = "default:sand 4",
minetest.clear_craft({
   recipe = {
      {'group:sand', 'group:sand'},
                {'group:sand', 'group:sand'}
      {"default:sand", "default:sand"},
      {"default:sand", "default:sand"},
   },
})
minetest.clear_craft({
   recipe = {
      {"default:desert_sand", "default:desert_sand"},
      {"default:desert_sand", "default:desert_sand"},
   },
})
minetest.clear_craft({
   recipe = {
      {"default:silver_sand", "default:silver_sand"},
      {"default:silver_sand", "default:silver_sand"},
   },
})