class FillStyleLinearGradient {

    constructor(x0, y0, x1, y1) {
        this._start_pos = { _x: x0, _y: y0 };
        this._end_pos = { _x: x1, _y: y1 };
        this._stop_count = 0;
        this._stops = [0, 0, 0, 0, 0];
    }
// 新特性待增加
    addColorStop = function (pos, color) {// 2021-5-6变更
        if (this._stop_count < 5 && 0.0 <= pos && pos <= 1.0) {
            this._stops[this._stop_count] = { _pos: pos, _color: color };
            this._stop_count++;// echo建议
        }// todo: 待修改
    }
}
// 2021-5-6变更
export default FillStyleLinearGradient;
