From 3527f10f8767b3b62b876f8a3f3bc5bd3ba56b2d Mon Sep 17 00:00:00 2001
From: Dennis Kobert <d-kobert@web.de>
Date: Fri, 31 May 2019 07:35:55 +0200
Subject: Add Vec2

---
 game_server/src/maths.rs | 54 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 game_server/src/maths.rs

diff --git a/game_server/src/maths.rs b/game_server/src/maths.rs
new file mode 100644
index 0000000..635eed6
--- /dev/null
+++ b/game_server/src/maths.rs
@@ -0,0 +1,54 @@
+pub struct Vec2 {
+    pub x: f32,
+    pub y: f32,
+}
+
+impl std::ops::Add for Vec2 {
+    type Output = Self;
+    fn add(self, other: Self) -> Self {
+        Self {
+            x: x + other.x,
+            y: y + other.y
+        }
+    }
+}
+
+impl std::ops::Sub for Vec2 {
+    type Output = Self;
+    fn sub(self, other: Self) -> Self {
+        Self {
+            x: x - other.x,
+            y: y - other.y
+        }
+    }
+}
+
+impl std::ops::Neg for Vec2 {
+    type Output = Self;
+    fn sub(self) -> Self {
+        Self {
+            x: -x,
+            y: -y
+        }
+    }
+}
+
+impl std::cmp::PartialEq for Vec2 {
+    type Output = bool;
+    fn eq(&self, other: &Self) -> bool {
+        f32::abs(self.x - other.x) < 1e-8
+        && f32::abs(self.y - other.y) < 1e-8
+    }
+}
+
+impl std::cmp::Eq for Vec2 {}
+
+impl Vec2 {
+    pub fn distance(&self) -> f32 {
+        f32::sqrt(self.distance2)
+    }
+
+    pub fn distance2(&self) -> f32 {
+        self.x * self.x + self.y * self.y
+    }
+}
-- 
cgit v1.2.3-54-g00ecf