@tdallau/nativescript/build/animate.js

some helper functions for nativescript

import { promisify } from '@tdallau/helpers';
;
export function amountFromTo(range) {
    return function (t) {
        return range.from + t * (range.to - range.from);
    };
}
export function animate(durration, animations) {
    var start = new Date();
    return promisify(function (resolve, _reject) {
        var timerId = setInterval(function () {
            var timePassed = new Date().valueOf() - start.valueOf();
            var progress = timePassed / durration;
            if (progress > 1)
                progress = 1;
            for (var _i = 0, animations_1 = animations; _i < animations_1.length; _i++) {
                var animation = animations_1[_i];
                var delta = animation.curve(progress);
                var value = amountFromTo(animation.getRange())(delta);
                if (animation.condition()) {
                    animation.draw(value);
                }
            }
            if (progress === 1) {
                clearInterval(timerId);
                resolve();
            }
        }, 17);
    });
}
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