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 types = this.types;
  17
  18     for (let typeName in types) {
  19       if (types.hasOwnProperty(typeName)) {
  20
  21         let matched = false;
  22         let type = types[typeName];
  23
  24         if (entity.hasComponent(type)) {
  25           matched = true;
  26         }
  27
  28         if (!matched) {
  29           return false;
  30         }
  31       }
  32     }
  33
  34     return true;
  35   }
  36
  37   constructor (config) {
  38     this.types = {};
  39
  40     Object.assign(this, config || {});
  41   }
  42 };
  43
  44 if (typeof module !== 'undefined' && this.module !== module) {
  45   module.exports = Node;
  46 } else {
  47   Serpentity.Node = Node;
  48 }