party-js/lib/components/gradient.js

A JavaScript library to brighten up your user's site experience with visual effects!

"use strict";
var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        if (typeof b !== "function" && b !== null)
            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
var __spreadArray = (this && this.__spreadArray) || function (to, from) {
    for (var i = 0, il = from.length, j = to.length; i < il; i++, j++)
        to[j] = from[i];
    return to;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Gradient = void 0;
var spline_1 = require("./spline");
/**
 * Represents a gradient that can be used to interpolate between multiple color.
 */
var Gradient = /** @class */ (function (_super) {
    __extends(Gradient, _super);
    function Gradient() {
        return _super !== null && _super.apply(this, arguments) || this;
    }
    /**
     * Interpolates between two color on the gradient.
     */
    Gradient.prototype.interpolate = function (a, b, t) {
        return a.mix(b, t);
    };
    /**
     * Returns a solid gradient from the given color.
     */
    Gradient.solid = function (color) {
        return new Gradient({ value: color, time: 0.5 });
    };
    /**
     * Returns a gradient with evenly spaced keys from the given colors.
     */
    Gradient.simple = function () {
        var colors = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            colors[_i] = arguments[_i];
        }
        var step = 1 / (colors.length - 1);
        return new (Gradient.bind.apply(Gradient, __spreadArray([void 0], colors.map(function (color, index) { return ({
            value: color,
            time: index * step,
        }); }))))();
    };
    return Gradient;
}(spline_1.Spline));
exports.Gradient = Gradient;