export class Vector {
    constructor(x, y) {
        this.x = x;
        this.y = y;
    }

    normalize() {
        let length = this.getLength();
        return new Vector(this.x / length, this.y / length);
    }

    getLength() {
        return Math.sqrt(this.x * this.x + this.y * this.y);
    }

    getDistance(target) {
        let v = new Vector(target.x - this.x, target.y - this.y);
        return v.getLength();
    }

    dotProduct(vector) {
        return this.x * vector.x + this.y * vector.y;
    }

    getAngle(vector) {
        return this.dotProduct(vector) / (this.getLength() * vector.getLength())
    }

    copy() {
        return new Vector(this.x, this.y);
    }
}