57 lines
1.4 KiB
Rust
57 lines
1.4 KiB
Rust
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use std::env::args;
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use std::io::stdout;
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use std::io::Write;
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use std::iter::repeat;
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use std::thread::sleep;
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use std::time::Duration;
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use rand::thread_rng;
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use rand::Rng;
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use pixelfoo::color::Color;
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type Frame = Vec<Vec<Color>>;
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fn send<T: Write>(w: &mut T, f: &Frame) -> std::io::Result<()> {
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for l in f {
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for c in l {
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w.write_all(&c.rgb())?;
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}
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}
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w.flush()
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}
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fn main() -> std::io::Result<()> {
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let args = args().collect::<Vec<_>>();
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eprintln!("executing {}", args[0]);
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let x_size = args[1].parse::<usize>().unwrap();
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let y_size = args[2].parse::<usize>().unwrap();
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eprintln!("screen size {}x{}", x_size, y_size);
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let t_frame = 0.040; // s
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let delay = Duration::new(0, (1_000_000_000.0 * t_frame) as u32);
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let colors = vec![Color::black(), Color::cyan(), Color::blue()];
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// time to interpolate from one color to the next
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let mut rng = thread_rng();
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let mut frame = repeat(repeat(Color::black()).take(x_size).collect::<Vec<_>>())
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.take(y_size)
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.collect::<Vec<_>>();
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loop {
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let x = rng.gen_range(0, x_size);
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let y = rng.gen_range(0, y_size);
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let c = colors[rng.gen_range(0, colors.len())];
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frame[y][x] = c;
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let mut buf = Vec::with_capacity(x_size * y_size * 3);
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send(&mut buf, &frame)?;
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stdout().write_all(&buf)?;
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stdout().flush()?;
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sleep(delay);
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}
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}
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