From 67d7492477808dc1765b1a9ed493dee79dff9320 Mon Sep 17 00:00:00 2001
From: eug-vs <eugene@eug-vs.xyz>
Date: Mon, 25 Oct 2021 15:39:58 +0300
Subject: feat: initial commit

---
 src/vector.rs | 83 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 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..d4e57cc
--- /dev/null
+++ b/src/vector.rs
@@ -0,0 +1,83 @@
+use std::fmt;
+use std::ops;
+
+#[derive(Debug, Clone, Copy)]
+pub struct Vector {
+    pub x: f32,
+    pub y: f32,
+    pub z: f32,
+}
+
+impl fmt::Display for Vector {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "({:.2}, {:.2}, {:.2})", self.x, self.y, self.z)
+    }
+}
+
+impl ops::Add for Vector {
+    type Output = Vector;
+    fn add(self, rhs: Self) -> Self::Output {
+        Vector {
+            x: self.x + rhs.x,
+            y: self.y + rhs.y,
+            z: self.z + rhs.z,
+        }
+    }
+}
+
+impl ops::Sub for Vector {
+    type Output = Vector;
+    fn sub(self, rhs: Self) -> Self::Output {
+        Vector {
+            x: self.x - rhs.x,
+            y: self.y - rhs.y,
+            z: self.z - rhs.z,
+        }
+    }
+}
+
+impl ops::Mul<f32> for Vector {
+    type Output = Vector;
+    fn mul(self, rhs: f32) -> Self::Output {
+        Vector {
+            x: self.x * rhs,
+            y: self.y * rhs,
+            z: self.z * rhs,
+        }
+    }
+}
+
+impl ops::Div<f32> for Vector {
+    type Output = Vector;
+    fn div(self, rhs: f32) -> Self::Output {
+        Vector {
+            x: self.x / rhs,
+            y: self.y / rhs,
+            z: self.z / rhs,
+        }
+    }
+}
+
+impl Vector {
+    pub fn magnitude_squared(self) -> f32 {
+        self.x * self.x + self.y * self.y + self.z * self.z
+    }
+
+    pub fn magnitude(self) -> f32 {
+        self.magnitude_squared().sqrt()
+    }
+
+    pub fn normalized(self) -> Vector {
+        let mag = self.magnitude();
+        self / mag
+    }
+
+    pub fn rotate_z(self, angle: f32) -> Vector {
+        // TODO: multiply by a matirx
+        Vector {
+            x: self.x * angle.cos() + self.y * angle.sin(),
+            y: self.y * angle.cos() - self.x * angle.sin(),
+            z: self.z,
+        }
+    }
+}
-- 
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