export class Vector2 {
    constructor(x = 0, y = 0) {
        this.x = x;
        this.y = y;
    }
    // 向量加法
    add(v) {
        return new Vector2(this.x + v.x, this.y + v.y);
    }
    // 向量减法
    subtract(v) {
        return new Vector2(this.x - v.x, this.y - v.y);
    }
    // 向量缩放
    scale(scalar) {
        return new Vector2(this.x * scalar, this.y * scalar);
    }
    // 向量归一化
    normalize() {
        const len = this.length();
        return len > 0 ? this.scale(1 / len) : new Vector2();
    }
    // 向量长度
    length() {
        return Math.sqrt(this.x * this.x + this.y * this.y);
    }
    // 计算两点间距离
    distanceTo(v) {
        return this.subtract(v).length();
    }
    // 克隆向量
    clone() {
        return new Vector2(this.x, this.y);
    }
    // 限制向量长度
    clampLength(maxLength) {
        const len = this.length();
        return len > maxLength ? this.normalize().scale(maxLength) : this.clone();
    }
}