Swoop-Game/progressbar.js at main · smartdev00/Swoop-Game · GitHub

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pc.script.create('progressbar', function (context) {
    var Progressbar = function (entity) {
        this.entity = entity;
        this.progress = null;
        this.foreground = null;
        this.initialWidth = 0;
        this.initialLeft = 0;
    };

    Progressbar.prototype = {
        initialize: function () {
            this.foreground = this.entity.findByName('Foreground').script.sprite;
            this.initialWidth = this.foreground.width;
            this.initialLeft = this.foreground.x;
            this.setProgress(1);
        },

        setProgress: function (progress) {
            progress = pc.math.clamp(progress, 0, 1);
            if (this.progress !== progress) {
                this.progress = progress;
                this.foreground.width = pc.math.lerp(0, this.initialWidth, progress);
                this.foreground.uPercentage = progress;

                // position the foreground correctly depending on its alignment
                switch (this.foreground.anchor) {
                    case 1:
                    case 4:
                    case 7:
                        this.foreground.x = this.initialLeft - (1 - progress) * this.initialWidth * 0.5;
                        break;
                    case 2:
                    case 5:
                    case 8:
                        this.foreground.x = this.initialLeft - (1 - progress) * this.initialWidth;
                        break;

                }

                this.foreground.updateSprite();
            }
        }
    };

    return Progressbar;
});