96 lines
2.4 KiB
Rust
96 lines
2.4 KiB
Rust
use std::env::args;
|
|
use std::io::stdout;
|
|
use std::io::Write;
|
|
use std::iter::repeat;
|
|
use std::thread::sleep;
|
|
use std::time::Duration;
|
|
|
|
use pixelfoo::color::Color;
|
|
|
|
type Frame = Vec<Vec<Color>>;
|
|
|
|
fn send<T: Write>(w: &mut T, f: &Frame) -> std::io::Result<()> {
|
|
for l in f {
|
|
for c in l {
|
|
w.write_all(&c.rgb())?;
|
|
}
|
|
}
|
|
w.flush()
|
|
}
|
|
|
|
const DEFAULT_LOOP_TIME: usize = 120;
|
|
const MIN_LOOP_TIME: usize = 20;
|
|
|
|
fn main() -> std::io::Result<()> {
|
|
let args = args().collect::<Vec<_>>();
|
|
eprintln!("executing {}", args[0]);
|
|
|
|
let x_size = args[1].parse::<usize>().unwrap();
|
|
let y_size = args[2].parse::<usize>().unwrap();
|
|
let loop_time = args[3]
|
|
.parse::<usize>()
|
|
.unwrap_or(DEFAULT_LOOP_TIME)
|
|
.max(MIN_LOOP_TIME);
|
|
eprintln!(
|
|
"screen size {}x{}, loop time {:?}s",
|
|
x_size, y_size, loop_time
|
|
);
|
|
|
|
let mut border = 0;
|
|
while (x_size - 2 * border) * (y_size - 2 * border) > x_size * y_size / 2 {
|
|
border += 1;
|
|
}
|
|
|
|
let t_frame = 0.040; // s
|
|
let delay = Duration::new(0, (1_000_000_000.0 * t_frame) as u32);
|
|
|
|
let mut previous_color = Color::blue();
|
|
let colors = vec![
|
|
Color::red(),
|
|
Color::yellow(),
|
|
Color::green(),
|
|
Color::cyan(),
|
|
Color::blue(),
|
|
Color::magenta(),
|
|
];
|
|
let mut color_index = 0;
|
|
let mut next_color = colors[color_index];
|
|
|
|
// time to interpolate from one color to the next
|
|
let t_interpolate = (loop_time as f64) / (colors.len() as f64); // s
|
|
let delta_a = t_frame / t_interpolate;
|
|
let mut a = 0.0;
|
|
|
|
eprint!("delta_a {}", delta_a);
|
|
loop {
|
|
let c0 = previous_color.interpolate(next_color, a);
|
|
let c1 = c0.complement();
|
|
let mut frame = repeat(repeat(c0).take(x_size).collect::<Vec<_>>())
|
|
.take(y_size)
|
|
.collect::<Vec<_>>();
|
|
for x in border..(x_size - border) {
|
|
for y in border..(y_size - border) {
|
|
frame[y][x] = c1
|
|
}
|
|
}
|
|
|
|
a += delta_a;
|
|
if a >= 1.0 {
|
|
a = 0.0;
|
|
|
|
color_index += 1;
|
|
if color_index >= colors.len() {
|
|
color_index = 0;
|
|
}
|
|
|
|
previous_color = next_color;
|
|
next_color = colors[color_index];
|
|
}
|
|
let mut buf = Vec::with_capacity(x_size * y_size * 3);
|
|
send(&mut buf, &frame)?;
|
|
stdout().write_all(&buf)?;
|
|
stdout().flush()?;
|
|
sleep(delay);
|
|
}
|
|
}
|