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pub fn set_panic_hook() {
// When the `console_error_panic_hook` feature is enabled, we can call the
// `set_panic_hook` function at least once during initialization, and then
// we will get better error messages if our code ever panics.
//
// For more details see
// https://github.com/rustwasm/console_error_panic_hook#readme
#[cfg(feature = "console_error_panic_hook")]
console_error_panic_hook::set_once();
}
/// this is total extra, so it the planet viewbox is like 100px wide, it will now be in total 110 pixels wide
static VIEWBOX_SCALE: f32 = 0.1;
pub static COLORS: [[f32; 3]; 10] = [
[0.5, 0.5, 0.5],
[1.0, 0.50, 0.0], // #FF8000
[0.0, 0.50, 1.0], // #0080ff
[1.0, 0.4, 0.58], // #FF6693
[0.24, 0.79, 0.33], // #3fcb55
[0.79, 0.76, 0.24], // #cbc33f
[0.81, 0.25, 0.91], // #cf40e9
[0.94, 0.32, 0.32], // #FF3F0D
[0.11, 0.93, 0.94], // #1beef0
[0.05, 0.77, 1.0], // #0DC5FF
];
use super::types;
pub fn caclulate_viewbox(planets: &Vec<types::Planet>) -> Vec<f32> {
let mut iter = planets.iter();
let init = match iter.next() {
Some(p) => (p.x, p.y, p.x, p.y),
None => return vec![0.0, 0.0, 0.0, 0.0],
};
let (min_x, min_y, max_x, max_y) =
planets
.iter()
.fold(init, |(min_x, min_y, max_x, max_y), p| {
(
min_x.min(p.x),
min_y.min(p.y),
max_x.max(p.x),
max_y.max(p.y),
)
});
let (width, height) = (max_x - min_x, max_y - min_y);
let (dx, dy) = (
(VIEWBOX_SCALE * width).max(6.0),
(VIEWBOX_SCALE * height).max(6.0),
);
vec![min_x - dx / 2.0, min_y - dy / 2.0, width + dx, height + dy]
}
pub fn get_planets(planets: &Vec<types::Planet>, r: f32) -> Vec<f32> {
planets.iter().fold(Vec::new(), |mut cum, p| {
cum.push(p.x);
cum.push(p.y);
cum.push(r);
cum
})
}
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