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

   1 /*
   2  * The entity gives the entity framework its name. It exists only
   3  * to hold components.
   4  */
   5 Class(Serpentity, "Entity")({
   6     prototype : {
   7         addedComponents : null,
   8
   9         init : function init(config) {
  10             var property;
  11
  12             this.components = {};
  13
  14             for (property in config) {
  15                 if (config.hasOwnProperty(property)) {
  16                     this[property] = config[property];
  17                 }
  18             }
  19         },
  20
  21         /*
  22          * Adds a component to the entity.
  23          *
  24          * returns true if added, false if already present
  25          */
  26         add : function add(component) {
  27             if (this.components.hasOwnProperty(component.constructor)) {
  28                 return false;
  29             }
  30             this.components[component.constructor] = component;
  31             return true;
  32         },
  33
  34         /*
  35          * returns true if component is included, false otherwise
  36          */
  37         hasComponent : function hasComponent(componentClass) {
  38             if (this.components.hasOwnProperty(componentClass)) {
  39                 return true;
  40             }
  41             return false;
  42         }
  43     }
  44 });