src/lib.rs

@@ -1,2 +1,124 @@
-mod geometry;
-pub mod math;
+use std::ops::{Add, Div, Mul, Sub};
+
+#[derive(Copy, Clone)]
+pub struct Vector3 {
+    x: f64,
+    y: f64,
+    z: f64,
+}
+
+impl Vector3 {
+    pub fn new(x: f64, y: f64, z: f64) -> Vector3 {
+        Vector3 { x, y, z }
+    }
+}
+
+impl Add for Vector3 {
+    type Output = Vector3;
+
+    fn add(self, rhs: Vector3) -> Self::Output {
+        Vector3::new(self.x + rhs.x, self.y + rhs.y, self.z + rhs.z)
+    }
+}
+
+impl Sub for Vector3 {
+    type Output = Vector3;
+
+    fn sub(self, rhs: Vector3) -> Self::Output {
+        Vector3::new(self.x - rhs.x, self.y - rhs.y, self.z - rhs.z)
+    }
+}
+
+impl Mul<f64> for Vector3 {
+    type Output = Vector3;
+
+    fn mul(self, rhs: f64) -> Self::Output {
+        Vector3::new(self.x * rhs, self.y * rhs, self.z * rhs)
+    }
+}
+
+impl Mul<Vector3> for f64 {
+    type Output = Vector3;
+
+    fn mul(self, rhs: Vector3) -> Self::Output {
+        Vector3::new(self * rhs.x, self * rhs.y, self * rhs.z)
+    }
+}
+
+impl Mul for Vector3 {
+    type Output = f64;
+
+    fn mul(self, rhs: Vector3) -> Self::Output {
+        self.x * rhs.x + self.y * rhs.y + self.z * rhs.z
+    }
+}
+
+impl Div<f64> for Vector3 {
+    type Output = Vector3;
+
+    fn div(self, rhs: f64) -> Self::Output {
+        Vector3::new(self.x / rhs, self.y / rhs, self.z / rhs)
+    }
+}
+
+#[derive(Copy, Clone)]
+pub struct Point3 {
+    x: f64,
+    y: f64,
+    z: f64,
+}
+
+impl Point3 {
+    pub fn new(x: f64, y: f64, z: f64) -> Point3 {
+        Point3 { x, y, z }
+    }
+}
+
+impl Add<Vector3> for Point3 {
+    type Output = Point3;
+
+    fn add(self, rhs: Vector3) -> Self::Output {
+        Point3::new(self.x + rhs.x, self.y + rhs.y, self.z + rhs.z)
+    }
+}
+
+impl Sub for Point3 {
+    type Output = Vector3;
+
+    fn sub(self, rhs: Point3) -> Self::Output {
+        Vector3::new(self.x - rhs.x, self.y - rhs.y, self.z - rhs.z)
+    }
+}
+
+pub struct Plane {
+    point: Point3,
+    normal: Vector3,
+}
+
+impl Plane {
+    pub fn new(point: Point3, normal: Vector3) -> Plane {
+        Plane { point, normal }
+    }
+}
+
+pub struct Line {
+    point: Point3,
+    direction: Vector3,
+}
+
+pub struct Sphere {
+    point: Point3,
+    radius: f64,
+}
+
+impl Sphere {
+    pub fn new(point: Point3, radius: f64) -> Sphere {
+        Sphere { point, radius }
+    }
+}
+
+pub enum Geometry {
+    Sphere(Sphere),
+    Plane(Plane),
+    Line(Line),
+}

src/main.rs

@@ -1,5 +1,45 @@
-use hello::math::Point3;
+use hello::*;
 
 fn main() {
-    let p = Point3::new(0.0, 0.0, 0.0);
+    let sphere1 = Sphere::new(Point3::new(0.0, 0.0, 0.0), 25.0);
+    let sphere2 = Sphere::new(Point3::new(1.0, -45.4, 3.55), 2.0);
+    let sphere3 = Sphere::new(Point3::new(3.0, 2.0, 1.0), 0.5);
+
+    let plane1 = Plane::new(Point3::new(1.0, 2.0, 3.0), Vector3::new(0.0, 1.0, 0.0));
+
+    let mut v = Vec::new();
+
+    v.push(Geometry::Sphere(sphere1));
+    v.push(Geometry::Plane(plane1));
+    v.push(Geometry::Sphere(sphere2));
+    v.push(Geometry::Sphere(sphere3));
+
+    for geo in v {
+        match geo {
+            Geometry::Sphere(s) => println!("A Sphere"),
+            Geometry::Plane(p) => println!("A Plane"),
+            Geometry::Line(l) => println!("A Line"),
+        }
+    }
+
+    let mut lottery = [4, 8, 15, 16, 23, 42];
+
+    let mut sum = 0;
+
+    for value in lottery {
+        sum += value;
+    }
+
+    println!("The sum is {}", sum);
+
+    let mut lottery_string = Vec::new();
+    for value in lottery {
+        lottery_string.push(value.to_string());
+    }
+
+    let lottery_string_2: Vec<String> = lottery
+        .iter()
+        .filter(|x| **x > 8)
+        .map(|x| x.to_string())
+        .collect();
 }