git.r.bdr.sh - rbdr/serpentity/blob - lib/serpentity/node.js

   1 'use strict';
   2
   3 /* global Serpentity */
   4
   5 /*
   6  * A node describes a set of components in order to describe entities
   7  * that include them.
   8  */
   9 let Node = class Node {
  10
  11   /*
  12    * Returns true if the given entity matches the defined protocol,
  13    * false otherwise
  14    */
  15   static matches (entity) {
  16     let property, types;
  17
  18     types = this.types;
  19
  20     for (property in types) {
  21       if (types.hasOwnProperty(property)) {
  22         let matched, type;
  23
  24         matched = false;
  25         type = types[property];
  26         if (entity.hasComponent(type)) {
  27           matched = true;
  28         }
  29         if (!matched) {
  30           return false;
  31         }
  32       }
  33     }
  34
  35     return true;
  36   }
  37
  38   constructor (config) {
  39     this.types = {};
  40
  41     Object.assign(this, config || {});
  42   }
  43 };
  44
  45 if (typeof module !== 'undefined' && this.module !== module) {
  46   module.exports = Node;
  47 } else {
  48   Serpentity.Node = Node;
  49 }