local get_connected_players = minetest.get_connected_players

mcl_util.registered_player_globalstep = {}
local registered_player_globalstep = mcl_util.registered_player_globalstep

function mcl_util.register_player_globalstep(def)
    if not def.can_execute then def.can_execute = function() return true end end
    table.insert(mcl_util.registered_player_globalstep, {can_execute=def.can_execute, func=def.execute})
end

minetest.register_on_mods_loaded(function()
    minetest.register_globalstep(function(dtime)
        local players = get_connected_players()
        for i = 1, #registered_player_globalstep do
            if registered_player_globalstep[i].can_execute and registered_player_globalstep[i].can_execute(dtime) then
                for p = 1, #players do
                    registered_player_globalstep[i].func(players[p], dtime)
                end
                if registered_player_globalstep[i].after_execute then
                    registered_player_globalstep[i].after_execute(dtime)
                end
            end
        end
    end)
end)