1 files changed, 23 insertions, 0 deletions
diff --git a/packages/web/src/math/Coord.ts b/packages/web/src/math/Coord.ts
new file mode 100644
index 0000000..db7ee6d
--- /dev/null
+++ b/packages/web/src/math/Coord.ts
@@ -0,0 +1,23 @@
+/** A coord on a grid whose origin is in the top left. */
+export default class Coord {
+  private readonly _x: number;
+  private readonly _y: number;
+
+  constructor(x: number, y: number) {
+    this._x = x;
+    this._y = y;
+  }
+
+  get x(): number {
+    return this._x;
+  }
+
+  get y(): number {
+    return this._y;
+  }
+
+  /** Get the squared distance of this point from the origin. */
+  squaredDistanceFromOrigin(): number {
+    return this._x * this._x + this._y * this._y;
+  }
+}