Make node components event emitters

[rbdr/serpentity] / lib / serpentity.js

diff --git a/lib/serpentity.js b/lib/serpentity.js
index ed233bae883136eacad972c70c91963850f2f3de..c5c3850c9946d468f65976f55005a8a7a181d626 100644 (file)
--- a/lib/serpentity.js
+++ b/lib/serpentity.js
@@ -1,4 +1,3 @@
-// Export submodules
 export { Component } from './serpentity/component.js';
 export { Entity } from './serpentity/entity.js';
 export { Node } from './serpentity/node.js';
@@ -7,107 +6,8 @@ export { System } from './serpentity/system.js';
 import { NodeCollection } from './serpentity/node_collection.js';
 
 /*
-Serpentity is a simple entity framework inspired by Ash.
-
-Usage:
-
-    import Serpentity from '@serpentity/serpentity';
-
-## Instantiating an engine
-
-    const engine = new Serpentity();
-
-Add entities or systems, systems are added with a priority (the smaller
-the number, the earlier it will be called):
-
-    engine.addEntity(entityFactory());
-    engine.addSystem(new GameSystem(), priority);
-
-Update all systems:
-
-    engine.update(dt);
-
-Remove entities or systems:
-
-    engine.removeEntity(entityReference);
-    engine.removeSystem(systemReference);
-
-## Creating Entities
-
-Entities are the basic object of Serpentity, and they do nothing.
-
-    import { Entity } from '@serpentity/serpentity';
-    const entity = new Entity();
-
-All the behavior is added through components
-
-## Creating Components
-
-Components define data that we can add to an entity. This data will
-eventually be consumed by "Systems"
-
-    import { Component } from '@serpentity/serpentity';
-    const PositionComponent = class PositionComponent extends Component {
-      constructor(config) {
-
-        this.x = 0;
-        this.y = 0;
-
-        super(config);
-      }
-    };
-
-You can add components to entities by using the add method:
-
-    entity.addComponent(new PositionComponent());
-
-
-Systems can refer to entities by requesting nodes.
-
-## Working with Nodes
-
-Nodes are sets of components that you define, so your system can require
-entities that always follow the API defined in the node.
-
-    import { Node } from '@serpentity/serpentity';
-    const MovementNode = class MovementNode extends Node;
-    MovementNode.position = PositionComponent;
-    MovementNode.motion = MotionComponent;
-
-You can then request an array of all the nodes representing entities
-that comply with that API
-
-    engine.getNodes(MovementNode);
-
-## Creating Systems
-
-Systems are called on every update, and they use components through nodes.
-
-    import { System } from '@serpentity/serpentity';
-    const TestSystem = class TestSystem extends System {
-      added(engine){
-
-        this.nodeList = engine.getNodes(MovementNode);
-      }
-
-      removed(engine){
-
-        this.nodeList = undefined;
-      }
-
-      update(dt){
-
-        for (const node of this.nodeList) {
-          console.log(`Current position is: ${node.position.x},${node.position.y}`);
-        }
-      }
-    };
-
-## That's it
-
-Just run `engine.update(dt)` in your game loop :D
-
-*/
+ * Serpentity is the main engine class
+ */
 export default class Serpentity {
 
   constructor(config) {
@@ -220,7 +120,7 @@ export default class Serpentity {
     const position = this._nodeCollectionKeys.indexOf(nodeType);
 
     if (position >= 0) {
-      return this._nodeCollections[position].nodes;
+      return this._nodeCollections[position];
     }
 
     const nodeCollection = new NodeCollection({