rust_minifb/examples/noise.rs

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extern crate minifb;
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use minifb::*;
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const WIDTH: usize = 640;
const HEIGHT: usize = 360;
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fn main() {
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let mut noise;
let mut carry;
let mut seed = 0xbeefu32;
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let mut buffer: [u32; WIDTH * HEIGHT] = [0; WIDTH * HEIGHT];
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let mut window = Window::new("Noise Test - Press ESC to exit",
WIDTH,
HEIGHT,
Scale::X1,
Vsync::No)
.unwrap();
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while window.is_open() && !window.is_key_down(Key::Escape) {
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for i in buffer.iter_mut() {
noise = seed;
noise >>= 3;
noise ^= seed;
carry = noise & 1;
noise >>= 1;
seed >>= 1;
seed |= carry << 30;
noise &= 0xFF;
*i = (noise << 16) | (noise << 8) | noise;
}
window.update(&buffer);
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}
}