firmath 0.4.2

Math Library for Graphics
Documentation 
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use crate::conversion::Conversion;

#[repr(C)]
#[derive(Copy, Clone)]
pub struct Vector2 {
    v: [f32; 2]
}

impl Vector2 {
    pub fn new(x: f32, y: f32) -> Vector2 {
        Self {
            v: [
                x, y
            ]
        }
    }

    pub fn get_vector(&self) -> [f32; 2] {
        self.v
    }

    pub fn get_vector_mut(&mut self) -> &mut [f32; 2] {
        &mut self.v
    }

    pub fn x(&self) -> f32 {
        self.v[0]
    }

    pub fn y(&self) -> f32 {
        self.v[1]
    }

    pub fn length(&self) -> f32 {
        (self.x() * self.x() + self.y() * self.y()).sqrt()
    }

    pub fn dot(&self, v: &Vector2) -> f32 {
        self.x() * v.x() + self.y() * v.y()
    }

    pub fn cross(&self, v: &Vector2) -> f32 {
        self.x() * v.y() - self.y() * v.x()
    }

    pub fn normalize(&self) -> Vector2 {
        if self.length() <= 0.0 {
            return 0.0.convert()
        }
        return Vector2::new(
            self.x() / self.length(),
            self.y() / self.length()
        )
    }
}

impl std::ops::Add for Vector2 {
    type Output = Self;

    fn add(self, rhs: Self) -> Self::Output {
        Self {
            v: [
                self.x() + rhs.x(),
                self.y() + rhs.y(),
            ]
        } 
    }
}

impl std::ops::AddAssign for Vector2 {
    fn add_assign(&mut self, rhs: Self) {
        *self = Self {
            v: [
                self.x() + rhs.x(),
                self.y() + rhs.y(),
            ]
        }
    }
}

impl std::ops::Sub for Vector2 {
    type Output = Self;

    fn sub(self, rhs: Self) -> Self::Output {
        Self {
            v: [
                self.x() - rhs.x(),
                self.y() - rhs.y(),
            ]
        } 
    }
}

impl std::ops::SubAssign for Vector2 {
    fn sub_assign(&mut self, rhs: Self) {
        *self = Self {
            v: [
                self.x() - rhs.x(),
                self.y() - rhs.y(),
            ]
        }
    }
}

impl std::ops::Mul for Vector2 {
    type Output = Self;

    fn mul(self, rhs: Self) -> Self::Output {
        Self {
            v: [
                self.x() * rhs.x(),
                self.y() * rhs.y(),
            ]
        } 
    }
}

impl std::ops::MulAssign for Vector2 {
    fn mul_assign(&mut self, rhs: Self) {
        *self = Self {
            v: [
                self.x() * rhs.x(),
                self.y() * rhs.y(),
            ]
        }
    }
}

impl std::ops::Div for Vector2 {
    type Output = Self;

    fn div(self, rhs: Self) -> Self::Output {
        Self {
            v: [
                self.x() / rhs.x(),
                self.y() / rhs.y(),
            ]
        } 
    }
}

impl std::ops::DivAssign for Vector2 {
    fn div_assign(&mut self, rhs: Self) {
        *self = Self {
            v: [
                self.x() / rhs.x(),
                self.y() / rhs.y(),
            ]
        }
    }
}