User's Manual

Cartridges

Tunnel is a delivery system for the content distributed in cartridges. There's not really any point to running Tunnel without a cartridge. The Tunnel engine is built to frame cartridges with a certain personality, but the cartridges themselves are the objects of desire.

Playing a Tunnel Cartridge

Tunnel is designed for the web, so playing a Tunnel cartridge is effortless.

Loading the cartridge at a web server is as simple as typing the URL into a browser and pressing Go.

Tunnel uses the WebAudio API, which will require iOS users to turn their Ringers on to hear cartridges.

Layers

Cartridges are organized in layers. Each layer is a convergence of a looping sound clip and 4 semitransparent image slides with optional background colors. Layers are stacked in fixed order and the cartridge entry point is at layer 1. Layer 0 is the control layer, partially reserved by the engine.

Controls

The top half of the screen is a button moving the user outward.

The bottom half of the screen is a button moving the user inward.

These are the controls for traversing a Tunnel cartridge.

Labels

If a cartridge has standard labels on it, there will be a display showing the cartridge title and a number of hyperlinks.

Next: Making a Tunnel Cartridge
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