rgt_realms = {
    realms = {
        void = {
            name = "void",
            label = "Void",
            sky = {
                type = "plain",
                base_color = "#000"
            }
        },
        surface = {
            name = "surface",
            label = "Surface",
            min = vector.new(-31000, -5000, -31000),
            max = vector.new(31000, 1000, 31000),
            -- TODO: Find a better way to handle admin realm transitions.
            waypoint = vector.new(0, 130, 0),
        }
    }
}
local ns = rgt_realms

function ns.register_realm(def)
    ns.realms[def.name] = def
end

function ns.get_realm_at_pos(pos)
    for name, x in pairs(ns.realms) do
        if name ~= "void" and vector.in_area(pos, x.min, x.max) then
            return name
        end
    end
    return "void"
end

function ns.update_realm(m)
    local realm = ns.realms[ns.get_realm_at_pos(m.object:get_pos())]
    m.object:set_sky(realm.sky)
end

function ns.check_position(m)
    
end


minetest.register_chatcommand("realm", {
    func = function(name, args)
        if ns.realms[args] and args ~= "void" then
            minetest.get_player_by_name(name):set_pos(ns.realms[args].waypoint or (ns.realms[args].min +(ns.realms[args].max -ns.realms[args].min) /2))
            ns.update_realm(rgt.players[name])
        end
    end
})