Refactor

src/page/background/vec2.ts

@@ -1,17 +0,0 @@
-export class Vec2 {
-  public static readonly Zero = new Vec2(0, 0);
-
-  public constructor(public readonly x: number, public readonly y: number) {}
-
-  public add(other: Vec2): Vec2 {
-    return new Vec2(this.x + other.x, this.y + other.y);
-  }
-
-  public subtract(other: Vec2): Vec2 {
-    return new Vec2(this.x - other.x, this.y - other.y);
-  }
-
-  public multiply(other: Vec2): Vec2 {
-    return new Vec2(this.x * other.x, this.y * other.y);
-  }
-}