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https://github.com/ricoriedel/wipe.git
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Add vector
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parent
8cd6e4d50f
commit
afe3dc4122
10
Cargo.lock
generated
10
Cargo.lock
generated
@ -11,6 +11,15 @@ dependencies = [
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"memchr",
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]
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[[package]]
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name = "approx"
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version = "0.5.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "cab112f0a86d568ea0e627cc1d6be74a1e9cd55214684db5561995f6dad897c6"
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dependencies = [
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"num-traits",
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]
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[[package]]
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name = "autocfg"
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version = "1.1.0"
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@ -424,6 +433,7 @@ checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680"
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name = "wipe"
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version = "2.0.0"
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dependencies = [
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"approx",
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"crossterm",
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"mockall",
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]
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@ -10,4 +10,5 @@ authors = ["Rico Riedel"]
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crossterm = "0.24"
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[dev-dependencies]
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mockall = "0.11"
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mockall = "0.11"
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approx = "0.5"
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@ -1,6 +1,8 @@
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pub mod error;
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mod pattern;
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pub mod printer;
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pub mod term;
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mod vec;
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fn main() -> Result<(), error::Error> {
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Ok(())
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69
src/vec.rs
Normal file
69
src/vec.rs
Normal file
@ -0,0 +1,69 @@
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use std::ops::Sub;
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#[derive(Copy, Clone, PartialEq, Debug)]
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pub struct Vector {
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pub x: f32,
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pub y: f32,
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}
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impl Vector {
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pub fn new(x: f32, y: f32) -> Self {
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Self { x, y }
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}
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pub fn len(&self) -> f32 {
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(self.x * self.x + self.y * self.y).sqrt()
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}
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pub fn center(&self) -> Vector {
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Self::new(self.x / 2.0, self.y / 2.0)
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}
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pub fn angle(&self) -> f32 {
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self.y.atan2(self.x)
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}
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}
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impl Sub for Vector {
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type Output = Vector;
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fn sub(self, rhs: Self) -> Self::Output {
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Self::new(self.x - rhs.x, self.y - rhs.y)
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}
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}
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#[cfg(test)]
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mod test {
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use super::*;
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use approx::*;
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#[test]
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fn new() {
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let v = Vector::new(4.0, 7.0);
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assert_eq!(4.0, v.x);
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assert_eq!(7.0, v.y);
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}
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#[test]
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fn len() {
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assert_abs_diff_eq!(8.5, Vector::new(3.0, 8.0).len(), epsilon = 0.1);
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}
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#[test]
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fn center() {
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assert_eq!(Vector::new(4.0, 9.0), Vector::new(8.0, 18.0).center());
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}
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#[test]
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fn angle() {
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assert_abs_diff_eq!(-1.5, Vector::new(2.0, -20.0).angle(), epsilon = 0.1);
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}
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#[test]
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fn sub() {
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assert_eq!(
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Vector::new(-5.0, 10.0),
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Vector::new(3.0, 16.0) - Vector::new(8.0, 6.0)
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);
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}
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}
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