Physics Engine (#4)

* Add matter-js as a dependency

* Add body component

* Fix renderable node doc

* Add the physics node type

* Correct typo in physics enabled node types

* Update docs on render system

* Add physics system

* Update changelog

* Add physics engine to main app

* Tweak the gravity of the world

* Add body to sumo factory

* Add angle component

* Add angle to entity

* Add angle to the nodes

* Pass angle between systems

* Set default angle to 0

* Split systems and nodes

* Fix indentaion in physics world control

* Add third sumo entity

* Adjust values for constriants and physics

* Correct docs in new nodes

* Update built-in docs

1 files changed, 3 insertions, 6 deletions

diff --git a/lib/nodes/renderable.js b/lib/nodes/renderable.js
index 0a3a111..12227a3 100644
--- a/lib/nodes/renderable.js
+++ b/lib/nodes/renderable.js
@@ -1,11 +1,9 @@
 import { Node } from '@serpentity/serpentity';
 
 import PixiContainerComponent from '../components/pixi_container';
-import PositionComponent from '@serpentity/components.position';
 
 /**
- * Node identifying a renderable entity, should have position and a
- * symbol to render
+ * Node identifying a renderable entity, should have a pixi renderable
  *
  * @extends {external:Serpentity.Node}
  * @class RenderableNode
@@ -15,13 +13,12 @@ export default class RenderableNode extends Node {
 };
 
 /**
- * Holds the types that are used to identify a wave entity
+ * Holds the types that are used to identify a renderable entity
  *
  * @property {object} types
  * @name types
- * @memberof WaveNode
+ * @memberof RenderableNode
  */
 RenderableNode.types = {
-  position: PositionComponent,
   container: PixiContainerComponent
 };