Saving and Loading!

/// scr_savegame (This script is called every time you save the game)
if (file_exists("save.sav")) {
    file_delete("save.sav");
}

var Save = file_text_open_write("save.sav");
var SaveRoom = room;
file_text_write_real(Save, SaveRoom);
file_text_close(Save);
instance_create(view_xview[0], view_hview[0], obj_saved);

/// scr_loadgame (This is called every time you want to load the game)
if (file_exists("save.sav")) {
    var Load = file_text_open_read("save.sav");
    var LoadRoom = file_text_read_real(Load);
    file_text_close(Load);
    room_goto(LoadRoom);
}