99 lines
2.1 KiB
Rust
99 lines
2.1 KiB
Rust
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use std::io::{
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Write,
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stdin,
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stdout,
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};
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/// As a dare to myself, I won't use any error-handling crates.
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#[derive (Debug)]
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enum GameError {
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IoError,
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}
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impl From <std::io::Error> for GameError {
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fn from (_: std::io::Error) -> Self {
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Self::IoError
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}
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}
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type Result <T> = std::result::Result <T, GameError>;
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/// Prints a string, naively wrapping at 80-character boundaries
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/// This means a period might be wrapped separate from the sentence it ends
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/// , and frankly I think that's part of the charm.
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fn print (mut s: &str) {
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const COLS: usize = 80;
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while s.len () > COLS {
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println! ("{}", &s [0..80]);
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s = &s [80..];
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}
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println! ("{}", s);
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}
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fn read_input () -> Result <String> {
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{
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let mut stdout = stdout ();
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stdout.write_all (b"> ")?;
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stdout.flush ()?;
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}
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let mut buffer = String::new ();
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stdin ().read_line (&mut buffer)?;
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// I don't know why I need the type annotation here, but I do.
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let x: &[_] = &['\r', '\n'];
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let buffer = buffer.trim_end_matches (x).to_string ();
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Ok (buffer)
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}
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#[derive (Debug, PartialEq)]
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enum PlayerAction {
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Nonsense,
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}
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fn parse_input (_s: &str) -> PlayerAction {
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PlayerAction::Nonsense
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}
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fn main () -> Result <()> {
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print ("Welcome to SEROTONIN DEPOSITORY, the only adventure game ever made.");
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print ("");
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print ("You have been consensually kidnapped by a diabolical ADVENTURE GAME ENTHUSIAST and encouraged to solve PUZZLES for their sick PLEASURE. The only winning move is to solve all the PUZZLES.");
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print ("");
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print ("Press ENTER if you dare to begin.");
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let input = read_input ()?;
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if ! input.is_empty () {
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print ("That was more than just ENTER but OKAY, overachiever.");
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}
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print ("");
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print ("You are in a small room. In one corner is a TABLE. The door behind you is locked. Obvious exits are a DOOR locked by a KEYPAD, and an EMERGENCY EXIT.");
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let input = read_input ()?;
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let _action = parse_input (&input);
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Ok (())
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}
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#[cfg (test)]
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mod test {
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#[test]
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fn parse_input () {
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use super::PlayerAction::*;
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for (input, expected) in [
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("", Nonsense),
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].into_iter () {
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let actual = super::parse_input (input);
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assert_eq! (actual, expected);
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}
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}
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}
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