splat-ecs/lib/prefabs.js

A 2D HTML5 Canvas game engine

var clone = require("./clone");
var setOrAddComponent = require("./set-or-add-component");

function Prefabs(prefabs) {
  this.prefabs = prefabs;
}
Prefabs.prototype.instantiate = function(entities, name) {
  var id = entities.create();
  var prefab = this.prefabs[name];
  Object.keys(prefab).forEach(function(key) {
    if (key === "id") {
      return;
    }
    setOrAddComponent(entities, id, key, clone(prefab[key]));
  });
  return id;
};
Prefabs.prototype.register = function(name, components) {
  this.prefabs[name] = components;
};
Prefabs.prototype.registerMultiple = function(prefabs) {
  Object.keys(prefabs).forEach(function(key) {
    this.registerPrefab(key, prefabs[key]);
  }.bind(this));
};

module.exports = Prefabs;