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@jackmott jackmott/main.rs
Last active Sep 9, 2019

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chunk noise example
use minifb::{Key, Window, WindowOptions};
use simdnoise::NoiseBuilder;
use std::{thread, time};
const WIDTH: usize = 640;
const HEIGHT: usize = 640;
fn main() {
let mut buffer: Vec<u32> = vec![0; WIDTH * HEIGHT];
let mut window = Window::new(
"Test - ESC to exit",
WIDTH,
HEIGHT,
WindowOptions::default(),
)
.unwrap_or_else(|e| {
panic!("{}", e);
});
while window.is_open() && !window.is_key_down(Key::Escape) {
let chunk_size = WIDTH / 2;
println!("test");
for chunk_y in 0..2 {
for chunk_x in 0..2 {
let x_offset = (chunk_x * chunk_size);
let y_offset = (chunk_y * chunk_size);
let W = WIDTH / 2;
let H = HEIGHT / 2;
println!("xoffset:{} yoffset:{} W:{} H:{}", x_offset, y_offset, W, H);
let noise = NoiseBuilder::fbm_2d_offset(x_offset as f32, W, y_offset as f32, H)
.generate_scaled(0.0, 1.0);
for i in 0..W * H {
let n = (noise[i] * 255.0).floor() as u32;
let y = i / W;
let x = i % W;
let winX = x + x_offset;
let winY = y + y_offset;
buffer[winY * WIDTH + winX] = (n << 16) | (n << 8) | n;
}
window.update_with_buffer(&buffer).unwrap();
thread::sleep(time::Duration::from_millis(1000));
}
}
// We unwrap here as we want this code to exit if it fails. Real applications may want to handle this in a different way
window.update();
}
}
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