Escape From Echo Base — 35 of 54

Part 3 - Things

Section 2 - Holoscreen

The holoscreen is a device. The holoscreen is switched off. The holoscreen has a number called channel. The channel of the holoscreen is 1. "The holoscreen can show views from a number of cameras in and around Echo Base."

Instead of examining the holoscreen:

if the channel of the holoscreen > number of rows in the Table of Holoscreen Channels:

now the channel of the holoscreen is 1;

let N be the channel of the holoscreen;

if the holoscreen is switched on:

say "The holoscreen shows [view in row N of the Table of Holoscreen Channels].";

now the channel of the holoscreen is the channel of the holoscreen + 1;

otherwise:

say "The holoscreen is not switched on."

Table of Holoscreen Channels