feat(utils): implemented basic math op traits for Vector3

lithium-utils/src/lib.rs

@@ -1,6 +1,26 @@
+use std::ops::{Add, Sub};
+
 pub struct Vector2 {
-    x: f32,
-    y: f32,
+    pub x: f32,
+    pub y: f32,
+}
+
+impl Default for Vector2 {
+    fn default() -> Self {
+        Self { x: 0_f32, y: 0_f32 }
+    }
+}
+
+impl Vector2 {
+    pub fn new(x: f32, y: f32) -> Self {
+        Self { x, y }
+    }
+}
+
+pub struct Vector3 {
+    pub x: f32,
+    pub y: f32,
+    pub z: f32,
 }
 
 impl Default for Vector3 {
@@ -13,21 +33,25 @@ impl Default for Vector3 {
     }
 }
 
-impl Vector2 {
-    pub fn new(x: f32, y: f32) -> Self {
-        Self { x, y }
+impl Add for Vector3 {
+    type Output = Self;
+    fn add(self, rhs: Self) -> Self::Output {
+        Self::Output {
+            x: self.x + rhs.x,
+            y: self.y + rhs.y,
+            z: self.z + rhs.z,
+        }
     }
 }
 
-pub struct Vector3 {
-    x: f32,
-    y: f32,
-    z: f32,
-}
-
-impl Default for Vector2 {
-    fn default() -> Self {
-        Self { x: 0_f32, y: 0_f32 }
+impl Sub for Vector3 {
+    type Output = Vector3;
+    fn sub(self, rhs: Self) -> Self::Output {
+        Self::Output {
+            x: self.x - rhs.x,
+            y: self.y - rhs.y,
+            z: self.z - rhs.z,
+        }
     }
 }