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This code was excerpted from a TEX based Adventure game written by a team of Explorer Scouts from GE Post 635, Schenectady New York circa 1980. The Adventure game was the first of several popular online text-based adventure games available on the GE Timesharing service. The scouts decided to create their own adventure game using TEX.
The following list of text-based games is not to be considered an authoritative, comprehensive listing of all such games; rather, it is intended to represent a wide range of game styles and genres presented using the text mode display and their evolution across a long period.
Games written in TADS are compiled to a platform-independent format that can be played on any computer for which a suitable virtual machine (VM) exists. Such virtual machines exist for several platforms, and in this respect, TADS closely follows the example of the original Infocom Z-machine, as well as modern languages such as Java and C#.
Strictly speaking, text-based means employing an encoding system of characters designed to be printable as text data. [1]: 54 As most computers only read binary code, encoding formats are typically written in such, where a bit is the smallest unit of data that has two possible values and each combination of bits represents a byte.
In adventure games, a text parser takes typed input (a command) from the player and simplifies it to something the game can understand. Usually, words with the same meaning are turned into the same word (e.g. "take" and "get") and certain filler words are dropped (e.g. articles, or the "at" in "look at rock").
The length of a string can also be stored explicitly, for example by prefixing the string with the length as a byte value. This convention is used in many Pascal dialects; as a consequence, some people call such a string a Pascal string or P-string. Storing the string length as byte limits the maximum string length to 255.
A code is non-singular if each source symbol is mapped to a different non-empty bit string; that is, the mapping from source symbols to bit strings is injective.. For example, the mapping = {,,} is not non-singular because both "a" and "b" map to the same bit string "0"; any extension of this mapping will generate a lossy (non-lossless) coding.
Colossal Cave Adventure (also known as Adventure or ADVENT) is a text-based adventure game, released in 1976 by developer Will Crowther for the PDP-10 mainframe computer. It was expanded upon in 1977 by Don Woods. In the game, the player explores a cave system rumored to be filled with treasure and gold.