1 files changed, 51 insertions, 12 deletions

diff --git a/src/vector2.rs b/src/vector2.rs
index e991a2a..2413f42 100644
--- a/src/vector2.rs
+++ b/src/vector2.rs
@@ -2,29 +2,46 @@ use sdl2::rect::Point;
 
 #[derive(PartialEq, Clone, Copy)]
 pub struct Vector2 {
-    pub y: f32,
-    pub x: f32,
+    pub y: f64,
+    pub x: f64,
 }
 
 impl Vector2 {
-    pub fn new(x: f32, y: f32) -> Vector2 {
+    pub fn new(x: f64, y: f64) -> Vector2 {
         Vector2 { x, y }
     }
 
     pub fn from_point(point: Point) -> Vector2 {
-        Vector2::new(point.x as f32, point.y as f32)
+        Vector2::new(point.x as f64, point.y as f64)
     }
 
-    pub fn norm(&self) -> f32 {
+    pub fn norm(&self) -> f64 {
         (self.x * self.x + self.y * self.y).sqrt()
     }
 
     pub fn normalize(&mut self) {
         *self = *self / self.norm();
     }
+
+    pub fn set_mag(&mut self, mag: f64) {
+        *self = *self / self.norm() * mag;
+    }
+
+
+    pub fn limit(&mut self, max: f64) {
+        if self.norm() > max {
+            self.set_mag(max);
+        }
+    }
+
+    pub fn low(&mut self, min: f64) {
+        if self.norm() < min {
+            self.set_mag(min);
+        }
+    }
 }
 
-use std::ops::{Add, Mul, MulAssign, Div};
+use std::ops::{Add, AddAssign, Sub, Mul, MulAssign, Div};
 
 impl Add for Vector2 {
     type Output = Self;
@@ -33,23 +50,45 @@ impl Add for Vector2 {
     }
 }
 
-impl Mul<f32> for Vector2 {
+impl AddAssign for Vector2 {
+    fn add_assign(&mut self, other: Self) {
+        self.x += other.x;
+        self.y += other.y;
+    }
+}
+
+impl Sub for Vector2 {
+    type Output = Self;
+    fn sub(self, other: Self) -> Self::Output {
+        Vector2::new(self.x - other.x, self.y - other.y)
+    }
+}
+
+impl Mul<f64> for Vector2 {
     type Output = Vector2;
-    fn mul(self, scalar: f32) -> Self::Output {
+    fn mul(self, scalar: f64) -> Self::Output {
         Vector2::new(self.x * scalar, self.y * scalar)
     }
 }
 
-impl MulAssign<f32> for Vector2 {
-    fn mul_assign(&mut self, scalar: f32) {
+impl MulAssign<f64> for Vector2 {
+    fn mul_assign(&mut self, scalar: f64) {
         self.x *= scalar;
         self.y *= scalar;
     }
 }
 
-impl Div<f32> for Vector2 {
+impl Div<f64> for Vector2 {
     type Output = Vector2;
-    fn div(self, scalar: f32) -> Self::Output {
+    fn div(self, scalar: f64) -> Self::Output {
         Vector2::new(self.x / scalar, self.y / scalar)
     }
 }
+
+use std::fmt;
+
+impl fmt::Debug for Vector2 {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{} {}", self.x, self.y)
+    }
+}