52 lines
1.6 KiB
Rust
52 lines
1.6 KiB
Rust
pub fn set_panic_hook() {
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// When the `console_error_panic_hook` feature is enabled, we can call the
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// `set_panic_hook` function at least once during initialization, and then
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// we will get better error messages if our code ever panics.
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//
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// For more details see
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// https://github.com/rustwasm/console_error_panic_hook#readme
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#[cfg(feature = "console_error_panic_hook")]
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console_error_panic_hook::set_once();
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}
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use octoon_math::{Vec3};
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/// this is total extra, so it the planet viewbox is like 100px wide, it will now be in total 110 pixels wide
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static VIEWBOX_SCALE: f32 = 0.1;
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pub static COLORS: [[f32; 3]; 10] = [
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[0.5, 0.5, 0.5],
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[1.0, 0.5, 0.0],
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[0.0, 0.5, 1.0],
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[1.0, 0.0, 1.0],
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[1.0, 0.0, 0.0],
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[1.0, 0.0, 0.0],
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[1.0, 0.0, 0.0],
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[1.0, 0.0, 0.0],
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[1.0, 0.0, 0.0],
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[1.0, 0.0, 0.0],
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];
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use super::types;
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pub fn caclulate_viewbox(planets: &Vec<types::Planet>) -> Vec<f32> {
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let mut iter = planets.iter();
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let init = match iter.next() {
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Some(p) => (p.x, p.y, p.x, p.y),
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None => return vec![0.0, 0.0, 0.0, 0.0],
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};
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let (min_x, min_y, max_x, max_y) = planets
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.iter()
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.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)));
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let (width, height) = (max_x - min_x, max_y - min_y);
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let (dx, dy) = ((VIEWBOX_SCALE * width).max(6.0), (VIEWBOX_SCALE * height).max(6.0));
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vec![min_x - dx/2.0, min_y - dy/2.0, width + dx, height + dy]
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}
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pub fn get_planets(planets: &Vec<types::Planet>, r: f32) -> Vec<Vec3<f32>> {
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planets.iter().map(|p| Vec3::new(p.x, p.y, r)).collect()
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}
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