function scr_dalv_determine_destination()
{
    switch (global.flag[28])
    {
        case 0:
            switch (room)
            {
                case rm_dalvshouse:
                    destination_x_dalv = default_x_dalvshouse;
                    destination_y_dalv = default_y_dalvshouse;
                    no_loop_destination_dalv = false;
                    image_alpha = 0;
                    direction = 180;
                    break;
                default:
                    instance_destroy();
            }
            break;
        case 1:
            switch (room)
            {
                case rm_dalvshouse:
                    switch (global.lastroom)
                    {
                        case "rm_dalvroomhall":
                            destination_x_dalv = default_x_dalvshouse;
                            destination_y_dalv = default_y_dalvshouse;
                            no_loop_destination_dalv = false;
                            image_alpha = 0;
                            direction = 180;
                            break;
                        case "rm_dalvhallway":
                            image_alpha = 1;
                            direction = 270;
                            x = default_x_dalvshouse;
                            y = default_y_dalvshouse;
                            destination_x_dalv = default_x_dalvshouse;
                            destination_y_dalv = default_y_dalvshouse;
                            no_loop_destination_dalv = false;
                            break;
                        default:
                            image_alpha = 1;
                            direction = 270;
                            x = 160;
                            y = 140;
                            destination_x_dalv = default_x_dalvshouse;
                            destination_y_dalv = default_y_dalvshouse;
                            no_loop_destination_dalv = false;
                            break;
                    }
                    break;
                case rm_dalvroomhall:
                    switch (global.lastroom)
                    {
                        case "rm_dalvshouse":
                            destination_x_dalv = default_x_dalvroomhall;
                            destination_y_dalv = default_y_dalvroomhall;
                            no_loop_destination_dalv = false;
                            image_alpha = 0;
                            direction = 0;
                            break;
                        case "rm_dalvsroom":
                            break;
                    }
                    break;
                case rm_dalvhallway:
                    switch (global.lastroom)
                    {
                        case "rm_dalvshouse":
                            break;
                        case "rm_dalvExit":
                            break;
                        default:
                            instance_destroy();
                    }
                    break;
                case rm_dalvExit:
                    switch (global.lastroom)
                    {
                        case "rm_dalvhallway":
                            break;
                        default:
                            instance_destroy();
                    }
                    break;
                default:
                    instance_destroy();
            }
            break;
        default:
            instance_destroy();
    }
}