From 7ad1b7efabea1349107669a432e6c88305f8d825 Mon Sep 17 00:00:00 2001
From: James Barnett <noreply@jamesbarnett.xyz>
Date: Sat, 1 Jan 2022 21:21:52 +0000
Subject: Implement basic ray tracing

---
 src/Vector.ts | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 src/Vector.ts

(limited to 'src/Vector.ts')

diff --git a/src/Vector.ts b/src/Vector.ts
new file mode 100644
index 0000000..3cebf6d
--- /dev/null
+++ b/src/Vector.ts
@@ -0,0 +1,36 @@
+export class Vector {
+  constructor(readonly x: number, readonly y: number, readonly z: number) {}
+
+  add(v: Vector): Vector {
+    return new Vector(this.x + v.x, this.y + v.y, this.z + v.z);
+  }
+
+  addScalar(n: number): Vector {
+    return new Vector(this.x + n, this.y + n, this.z + n);
+  }
+
+  subtract(v: Vector): Vector {
+    return new Vector(this.x - v.x, this.y - v.y, this.z - v.z);
+  }
+
+  multiply(n: number): Vector {
+    return new Vector(this.x * n, this.y * n, this.z * n);
+  }
+
+  dotProduct(v: Vector): number {
+    return this.x * v.x + this.y * v.y + this.z * v.z;
+  }
+
+  normalise(): Vector {
+    const vecLength = this.norm();
+    return new Vector(
+      this.x / vecLength,
+      this.y / vecLength,
+      this.z / vecLength
+    );
+  }
+
+  norm(): number {
+    return Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.z);
+  }
+}
-- 
cgit v1.2.3