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use sdl2::rect::Point;
#[derive(PartialEq, Clone, Copy)]
pub struct Vector2 {
pub y: f32,
pub x: f32,
}
impl Vector2 {
pub fn new(x: f32, y: f32) -> Vector2 {
Vector2 { x, y }
}
pub fn from_point(point: Point) -> Vector2 {
Vector2::new(point.x as f32, point.y as f32)
}
pub fn norm(&self) -> f32 {
(self.x * self.x + self.y * self.y).sqrt()
}
pub fn normalize(&mut self) {
*self = *self / self.norm();
}
}
use std::ops::{Add, Mul, MulAssign, Div};
impl Add for Vector2 {
type Output = Self;
fn add(self, other: Self) -> Self::Output {
Vector2::new(self.x + other.x, self.y + other.y)
}
}
impl Mul<f32> for Vector2 {
type Output = Vector2;
fn mul(self, scalar: f32) -> Self::Output {
Vector2::new(self.x * scalar, self.y * scalar)
}
}
impl MulAssign<f32> for Vector2 {
fn mul_assign(&mut self, scalar: f32) {
self.x *= scalar;
self.y *= scalar;
}
}
impl Div<f32> for Vector2 {
type Output = Vector2;
fn div(self, scalar: f32) -> Self::Output {
Vector2::new(self.x / scalar, self.y / scalar)
}
}
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