medicine_bag.lua

minetest.register_node("medicine:medical_bag", {
    description = "Medical Bag",
    visual_scale = 0.5,
    mesh = "medicine_bag.obj",
    tiles = {"medical_bag.png"},
    paramtype = "light",
    paramtype2 = "facedir",
    groups = {snappy = 2},
    drawtype = "mesh",
    collision_box = {
        type = "fixed",
        fixed = {-0.5, -0.52, -0.24, 0.5, 0.23, 0.24}
    },
    selection_box = {
        type = "fixed",
        fixed = {-0.5, -0.52, -0.24, 0.5, 0.23, 0.24}
    },
    sounds = default.node_sound_leaves_defaults(),
    on_construct = function (pos)
        local meta = minetest.get_meta(pos)
        meta:set_string("medical_bag_formspec", 
            "size[6, 5]" ..
            "list[nodemeta:"..pos.x..","..pos.y..","..pos.z..";main;0, 1;6, 3]")
            
        local inv = meta:get_inventory()
        inv:set_size("main", 6*3)
    end,
    on_rightclick = function (pos, node, player, itemstack, pointed_thing)
        minetest.show_formspec(player:get_player_name(), "medical_bag_inventory", minetest.get_meta(pos):get_string("medical_bag_formspec"))
    end
})