footile 0.7.0

A 2D vector graphics library
Documentation 
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// geom.rs    Simple geometry stuff.
//
// Copyright (c) 2017-2021  Douglas P Lau
//
use pointy::Pt;

/// 2-dimensional vector / point with associated width.
#[derive(Clone, Copy, Debug, PartialEq)]
pub struct WidePt(pub Pt<f32>, pub f32);

/// Calculate linear interpolation of two values
///
/// The t value should be between 0 and 1.
pub fn float_lerp(a: f32, b: f32, t: f32) -> f32 {
    b + (a - b) * t
}

impl Default for WidePt {
    fn default() -> Self {
        WidePt(Pt::default(), 1.0)
    }
}

impl WidePt {
    /// Get the width
    pub fn w(self) -> f32 {
        self.1
    }

    /// Find the midpoint between two wide points
    pub fn midpoint(self, rhs: Self) -> Self {
        let v = self.0.midpoint(rhs.0);
        let w = (self.w() + rhs.w()) / 2.0;
        WidePt(v, w)
    }
}