/**
 * Entity API Object (for storing / loading entities to and from API)
 * @constructor
 * @param entities GameLib.API.Entity[]
 */
GameLib.API.EntityManager = function(
    entities
) {
    if (GameLib.Utils.UndefinedOrNull(entities)) {
        entities = [];
    }
    this.entities = entities;
};

/**
 * Creates an API entity manager from an Object entity manager
 * @param objectEntityManager
 * @constructor
 */
GameLib.API.EntityManager.FromObjectEntityManager = function(objectEntityManager) {

    var apiEntities = objectEntityManager.entities.map(
        function (objectEntity) {
            return GameLib.API.Entity.FromObjectEntity(objectEntity);
        }
    );

    return new GameLib.API.EntityManager(
        apiEntities
    );
};