Method add

examples/extern/gmath.bundle.js:714–720

(other)

        return this;
    }
    add(other) {
        const { x , y  } = typeof other === "number" ? {
            x: other,
            y: other
        } : other;
        return new Vector2(this.x + x, this.y + y);
    }
    sub(other) {
        const { x , y  } = typeof other === "number" ? {
            x: other,