From 33a35c50c20e863123642c8c9ea31dfc006945f6 Mon Sep 17 00:00:00 2001
From: Julian T <julian@jtle.dk>
Date: Mon, 25 Jan 2021 14:43:46 +0100
Subject: Started work on implementing vectors bounding and film

---
 src/vector.rs | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 src/vector.rs

(limited to 'src/vector.rs')

diff --git a/src/vector.rs b/src/vector.rs
new file mode 100644
index 0000000..9b89168
--- /dev/null
+++ b/src/vector.rs
@@ -0,0 +1,56 @@
+use crate::{Float, Number};
+use std::ops::{Sub};
+
+#[derive(Clone, Copy)]
+pub struct Vector2<T: Number> {
+    pub x: T,
+    pub y: T,
+}
+
+pub type Vector2f = Vector2<Float>;
+pub type Vector2i = Vector2<i32>;
+
+impl<T: Number> Vector2<T> {
+    pub fn new(initial: T) -> Vector2<T> {
+        Vector2 { x: initial, y: initial }
+    }
+
+    pub fn from_xy(x: T, y: T) -> Vector2<T> {
+        Vector2 { x, y }
+    }
+}
+
+impl<T: Number> Sub for Vector2<T> {
+    type Output = Self;
+    fn sub(self, op: Self) -> Self::Output {
+        Vector2 {
+            x: self.x - op.x,
+            y: self.y - op.y,
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn new_vec2() {
+        let v = Vector2::from_xy(2.0, 10.0);
+
+        assert!(v.x == 2.0 && v.y == 10.0);
+
+        let v = Vector2::new(3);
+
+        assert!(v.x == 3 && v.y == 3);
+    }
+
+    #[test]
+    fn sub_vec2() {
+        let v1 = Vector2::from_xy(10, 11);
+        let v2 = Vector2::from_xy(2, 3);
+
+        let v3 = v1-v2;
+        assert!(v3.x == 8 && v3.y == 8);
+    }
+}
-- 
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