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) -> Vec { 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, r: f32) -> Vec { planets.iter().fold(Vec::new(), |mut cum, p| { cum.push(p.x); cum.push(p.y); cum.push(r); cum }) }