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/target
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.vscode
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[package]
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name = "rulebot"
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version = "0.1.0"
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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reqwest = { version = "0.11.16", features = ["blocking"] }
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exitcode = "1.1.2"
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rand = "0.8.5"
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RuleBot
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=======
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Bot that runs a random ![cellular automaton](https://en.wikipedia.org/wiki/Elementary_cellular_automaton) on an 8-bit input.
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use rand::Rng;
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type State = [bool; 8];
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fn map_state(rule: u8, state: &State) -> State {
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let mut new_state: [bool; 8] = [false; 8];
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for i in 0..8 {
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let pattern = ((i != 0 && state[i - 1]) as u8 * 4)
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| (state[i] as u8 * 2)
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| ((i != 7 && state[i + 1]) as u8);
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new_state[i] = (rule >> pattern & 1) == 1;
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}
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new_state
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}
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fn state_to_string(state: State) -> String {
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state.map(|c| if c { "⬛" } else { "⬜" }).concat()
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}
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fn num_to_state(num: u8) -> State {
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let mut state = [false; 8];
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for i in 0..8 {
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state[i] = (num >> i & 1) == 1;
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}
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state
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}
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fn main() {
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let mut rng = rand::thread_rng();
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let seed: u16 = rng.gen();
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let rule: u8 = (seed & 0xff) as u8;
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let init_state = num_to_state((seed >> 8 & 0xff) as u8);
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let states: String = (0..8)
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.scan(init_state, |state, _i| {
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let old_state = *state;
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*state = map_state(rule, state);
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Some(old_state)
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})
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.map(state_to_string)
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.collect::<Vec<String>>()
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.join("\n");
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println!("Rule: {}\n{}", rule, states);
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let client = reqwest::blocking::Client::new();
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let res = client
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.post("https://mastodon.raptorpond.com/api/v1/statuses")
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.header(
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"Authorization",
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format!("Bearer {}", std::env::var("MASTODON_TOKEN").unwrap()),
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)
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.form(&[
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("status", format!("Rule: {}\n{}", rule, states)),
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("visibility", String::from("private")),
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])
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.send();
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match res {
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Ok(_) => std::process::exit(exitcode::OK),
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Err(error) => {
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println!("{:?}", error);
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std::process::exit(exitcode::IOERR);
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}
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}
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}
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Reference in New Issue