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use crate::{game::protocol::Direction, State};
use log::debug;
use rand::{rng, seq::IteratorRandom};
use serde::Deserialize;
use std::{ops::DerefMut, sync::Arc};
use tokio::spawn;
#[derive(Deserialize, Clone)]
pub struct Config {
amount: usize,
}
pub async fn spawn_bots(config: Config, state: Arc<State>) {
for i in 0..config.amount {
spawn(bot(config.clone(), state.clone(), format!("bot{i}")));
}
}
async fn bot(_config: Config, state: Arc<State>, name: String) {
let mut ticks = state.tick.subscribe();
let id = {
let mut g = state.players.write().await;
let mut id = 0;
while g.contains_key(&id) {
id += 1;
}
g.insert(id, name.clone());
id
};
let mut possible = Vec::new();
while let Ok(_) = ticks.recv().await {
let mut g = state.game.write().await;
let g = g.deref_mut();
if let Some((dir, head, _)) = g.heads.get_mut(&id) {
possible.clear();
for d in Direction::ALL {
if g.map[*head + d.vector()].is_none() {
possible.push(d)
}
}
*dir = *possible.iter().choose(&mut rng()).unwrap_or(&Direction::Up);
debug!(name:?, dir:?; "");
}
}
}
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