In an Adventure game, a text parser takes typed input (a command) from the player and simplifies it to something the game can understand. An adventure game is a type of Video game characterized by investigation exploration puzzle-solving, interaction with game characters and a focus on Narrative 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 Parser makes it easier for the game author to react on input. The game author does not have to check whether the command is "get the gem", "take the gem", "get gem", "take gem", "take the precious gem", and so on, because the Parser has already stripped that down to something like "take gem".
For the player, the game is more flexible. The player does not have to hunt for the right words, because the game understands more words.
Parsers were used in early Interactive Fiction like the Zork series and games by Sierra On-Line. Zork was one of the first Interactive fiction Computer games and an early descendant of Colossal Cave Adventure. Sierra Entertainment Inc is a Worldwide American Video game developer and publisher founded in 1979 by Ken and Roberta
See also Parser in general computer science. In Computer science and Linguistics, parsing, or more formally syntactic analysis, is the process of analyzing a sequence of tokens to
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