lj_rust/examples/simple_client.rs

///
/// $ cargo run --example simple_client
///
use redis::{
    //RedisResult,
    Client,
    Commands,
    Connection,
};
use std::thread::sleep;
use std::time::{Duration, Instant};

const SCALE: f32 = 20.0;

fn do_something() -> redis::RedisResult<()> {
    let client = Client::open("redis://127.0.0.1/")?;
    let mut con: Connection = client.get_connection()?;
    let start = Instant::now();

    loop {
        let elapsed = start.elapsed();
        let time = 60.0 * elapsed.as_millis() as f32 / 5_000.0;

        let mut v: Vec<(f32, f32, u32)> = vec![];

        for i in 0..128 {
            let a = (time + i as f32) / 128.0 * std::f32::consts::PI * 2.0;
            let r = 24.0 * SCALE + (a * 5.0).cos() * (10.0 * SCALE * (time / 5.0).cos());

            let x = a.cos() * r;
            let y = a.sin() * r;
            let col = if i % 8 < 4 { 0x000000ff } else { 0x00ff0000 };
            v.push((x, y, col));
        }
        // println!("{:?}", v);
        let _ = con.set("/pl/0/0", format!("{:?}", v))?;
        sleep(Duration::from_millis(100));
    }
    // Ok(())
}

fn main() {
    _ = do_something();
}