33 lines
924 B
Rust
33 lines
924 B
Rust
use crate::{Point, Rectangle, Vector};
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use std::f32::consts::PI;
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#[derive(Debug, Copy, Clone, PartialEq)]
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/// Degrees
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pub struct Degrees(pub f32);
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#[derive(Debug, Copy, Clone, PartialEq)]
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/// Radians
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pub struct Radians(pub f32);
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impl From<Degrees> for Radians {
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fn from(degrees: Degrees) -> Self {
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Radians(degrees.0 * PI / 180.0)
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}
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}
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impl Radians {
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/// Calculates the line in which the [`Angle`] intercepts the `bounds`.
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pub fn to_distance(&self, bounds: &Rectangle) -> (Point, Point) {
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let v1 = Vector::new(f32::cos(self.0), f32::sin(self.0));
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let distance_to_rect = f32::min(
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f32::abs((bounds.y - bounds.center().y) / v1.y),
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f32::abs(((bounds.x + bounds.width) - bounds.center().x) / v1.x),
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);
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let start = bounds.center() + v1 * distance_to_rect;
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let end = bounds.center() - v1 * distance_to_rect;
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(start, end)
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}
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}
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