@woosh/meep-engine/src/engine/asset/Asset.js

Pure JavaScript game engine. Fully featured and production ready.

/**
 * @template T
 *
 */
export class Asset {
    /**
     * @template T
     * @param {function():T} [factory]
     * @param {number} [byteSize] byte size of the asset in RAM
     * @constructor
     */
    constructor(factory, byteSize = 0) {

        /**
         *
         * @type {function(): T}
         */
        this.factory = factory;

        /**
         *
         * @type {number}
         */
        this.byteSize = byteSize;

        /**
         *
         * @type {Array<AssetDescription>}
         */
        this.dependencies = [];

        /**
         *
         * @type {AssetDescription}
         */
        this.description = null;
    }

    /**
     *
     * @param {Asset} other
     * @returns {boolean}
     */
    equals(other) {
        return this === other
            || this.description === other.description
            || this.description.equals(other.description)
            ;
    }

    hash() {
        return this.description.hash();
    }

    /**
     *
     * @returns {T}
     */
    create() {
        return this.factory();
    }
}

Asset.prototype.byteSize = 0;