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use std::f32;
#[derive(Copy, Clone, Debug)]
pub struct HexSize {
width: f32,
height: f32,
}
impl HexSize {
pub fn from_regular_width(width: f32) -> HexSize {
HexSize {
width,
height: 2.0 * width / 3.0_f32.sqrt(),
}
}
pub fn from_regular_height(height: f32) -> HexSize {
HexSize {
width: (height / 2.0) * 3.0_f32.sqrt(),
height,
}
}
pub fn new_irregular(width: f32, height: f32) -> HexSize {
HexSize { width, height }
}
pub fn width(&self) -> f32 {
self.width
}
pub fn height(&self) -> f32 {
self.height
}
}
#[cfg(test)]
mod test {
use super::*;
#[test]
pub fn test_from_width() {
let hex_size = HexSize::from_regular_width(1.0);
assert_eq!(hex_size.width(), 1.0);
assert_eq!(hex_size.height(), 1.1547005);
}
#[test]
pub fn test_from_height() {
let hex_size = HexSize::from_regular_height(1.0);
assert_eq!(hex_size.width(), 0.8660254);
assert_eq!(hex_size.height(), 1.0);
}
}