text: import { applyTMXProperties } from "./TMXUtils.js";
  import TMXObject from "./TMXObject.js";
  import TMXLayer from "./TMXLayer.js";
  import { clamp } from "./../../math/math.js";
  
  /**
   * @classdesc
   * object group definition as defined in Tiled.
   * (group definition is translated into the virtual `me.game.world` using `me.Container`)
   * @class TMXGroup
   * @constructor
   * @ignore
   */
  export default class TMXGroup {
  
      constructor(map, data, z) {
  
          /**
           * group name
           * @public
           * @type String
           * @name name
           * @memberOf me.TMXGroup
           */
          this.name = data.name;
  
          /**
           * group width
           * @public
           * @type Number
           * @name width
           * @memberOf me.TMXGroup
           */
          this.width = data.width || 0;
  
          /**
           * group height
           * @public
           * @type Number
           * @name height
           * @memberOf me.TMXGroup
           */
          this.height = data.height || 0;
  
          /**
           * tint color
           * @public
           * @type String
           * @name tintcolor
           * @memberOf me.TMXGroup
           */
          this.tintcolor = data.tintcolor;
  
          /**
           * group z order
           * @public
           * @type Number
           * @name z
           * @memberOf me.TMXGroup
           */
          this.z = z;
  
          /**
           * group objects list definition
           * @see me.TMXObject
           * @public
           * @type Array
           * @name name
           * @memberOf me.TMXGroup
           */
          this.objects = [];
  
          var visible = typeof(data.visible) !== "undefined" ? data.visible : true;
          this.opacity = (visible === true) ? clamp(+data.opacity || 1.0, 0.0, 1.0) : 0;
  
          // check if we have any user-defined properties
          applyTMXProperties(this, data);
  
          // parse all child objects/layers
          if (data.objects) {
              data.objects.forEach((object) => {
                  object.tintcolor = this.tintcolor;
                  this.objects.push(new TMXObject(map, object, z));
              });
          }
  
          if (data.layers) {
              data.layers.forEach((data) => {
                  var layer = new TMXLayer(map, data, map.tilewidth, map.tileheight, map.orientation, map.tilesets, z++);
                  // set a renderer
                  layer.setRenderer(map.getRenderer());
                  // resize container accordingly
                  this.width = Math.max(this.width, layer.width);
                  this.height = Math.max(this.height, layer.height);
                  this.objects.push(layer);
              });
          }
      }
  
      /**
       * reset function
       * @ignore
       * @function
       */
  
      destroy() {
          // clear all allocated objects
          this.objects = null;
      }
  
      /**
       * return the object count
       * @ignore
       * @function
       */
      getObjectCount() {
          return this.objects.length;
      }
  
      /**
       * returns the object at the specified index
       * @ignore
       * @function
       */
      getObjectByIndex(idx) {
          return this.objects[idx];
      }
  };
  