Babylon.js/Babylon/Tools/babylon.smartArray.js

var BABYLON;
(function (BABYLON) {
    var SmartArray = (function () {
        function SmartArray(capacity) {
            this.length = 0;
            this._duplicateId = 0;
            this.data = new Array(capacity);
            this._id = SmartArray._GlobalId++;
        }
        SmartArray.prototype.push = function (value) {
            this.data[this.length++] = value;

            if (this.length > this.data.length) {
                this.data.length *= 2;
            }

            if (!value.__smartArrayFlags) {
                value.__smartArrayFlags = {};
            }

            value.__smartArrayFlags[this._id] = this._duplicateId;
        };

        SmartArray.prototype.pushNoDuplicate = function (value) {
            if (value.__smartArrayFlags && value.__smartArrayFlags[this._id] === this._duplicateId) {
                return;
            }
            this.push(value);
        };

        SmartArray.prototype.sort = function (compareFn) {
            this.data.sort(compareFn);
        };

        SmartArray.prototype.reset = function () {
            this.length = 0;
            this._duplicateId++;
        };

        SmartArray.prototype.concat = function (array) {
            if (array.length === 0) {
                return;
            }
            if (this.length + array.length > this.data.length) {
                this.data.length = (this.length + array.length) * 2;
            }

            for (var index = 0; index < array.length; index++) {
                this.data[this.length++] = (array.data || array)[index];
            }
        };

        SmartArray.prototype.concatWithNoDuplicate = function (array) {
            if (array.length === 0) {
                return;
            }
            if (this.length + array.length > this.data.length) {
                this.data.length = (this.length + array.length) * 2;
            }

            for (var index = 0; index < array.length; index++) {
                var item = (array.data || array)[index];
                this.pushNoDuplicate(item);
            }
        };

        SmartArray.prototype.indexOf = function (value) {
            var position = this.data.indexOf(value);

            if (position >= this.length) {
                return -1;
            }

            return position;
        };

        SmartArray._GlobalId = 0;
        return SmartArray;
    })();
    BABYLON.SmartArray = SmartArray;
})(BABYLON || (BABYLON = {}));
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