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

   1 'use strict';
   2
   3 /* global Serpentity */
   4
   5 /*
   6  * Systems contain most of the logic, and work with nodes in order to
   7  * act and change their values.
   8  *
   9  * You usually want to inherit from this class and override the
  10  * three methods. They are shown here to document the interface.
  11  */
  12
  13 let System = class System {
  14
  15   /*
  16    * This will be run when the system is added to the engine
  17    */
  18   added () {
  19     // Override with added(engine)
  20     // Receives an instance of the serpentity engine
  21   }
  22
  23   /*
  24    * This will be run when the system is removed from the engine
  25    */
  26   removed () {
  27     // Override with removed(engine)
  28     // Receives an instance of the serpentity engine
  29   }
  30
  31   /*
  32    * This will run every time the engine's update method is called
  33    */
  34   update () {
  35     // Override with update(dt)
  36     // Receives a delta of the time
  37   }
  38 };
  39
  40 if (typeof module !== 'undefined' && this.module !== module) {
  41   module.exports = System;
  42 } else {
  43   Serpentity.System = System;
  44 }