adding actor documentation

docs/cruft/core/Actor.md

@@ -1,7 +1,12 @@
-#Actor
-[engine/core/Actor.js](https://github.com/mjneil/CruftEngine/blob/master/engine/core/Actor.js)		
+#Actor extends [Emitter](Emitter.md)	
+[cruft/core/Actor.js](https://github.com/mjneil/CruftEngine/blob/master/cruft/core/Actor.js)		
 This class defines an Actor. 
 
+## Importing
+```javascript
+import Actor from "cruft/core/Actor"
+```
+
 ## Constructors
 
 ### Actor( [ [guid](/primitives.md#number) ] )
@@ -10,7 +15,7 @@ This class defines an Actor.
 ```javascript
 let actor = new Actor(); 
 //or
-let actor2 = new Actor(12);
+let actor2 = new Actor(12); //actor2.guid === 12;
 ```
 
 
@@ -24,57 +29,57 @@ let actor2 = new Actor(12);
 ##Methods
 
 
-### addComponent(  )
-DESC
-
+### addComponent( [component](Component.md) )
+Add a component to an actor. 
 ```javascript
-//example
+actor.addComponent(component);
 ```
 
-
-### removeComponent(  )
-DESC
+### getComponent( [type](/primitives.md#string) )
+Get a component of the specified type. 
 
 ```javascript
-//example
+var transform = actor.getComponent("transform");
 ```
 
 
-### getComponent(  )
-DESC
+### removeComponent( [type](/primitives.md#string) )
+Remove a component of the specified type. 
 
 ```javascript
-//example
+actor.removeComponent("transform"); 
 ```
 
-### addChild(  )
-DESC
+
+### addChild( [child](Actor.md) )
+Add a child to an actor. 
 
 ```javascript
-//example
+actor1.addChild(actor2)
 ```
 
-### removeChild(  )
-DESC
+### removeChild( [child](Actor.md) )
+Remove a child from an actor. 
 
 ```javascript
-//example
+actor1.removeChild(actor2)
 ```
 
 
-### setParent(  )
-DESC
+### setParent( [parent](Actor.md) )
+Method used to set actor's parent reference. 		
+**AddChild already takes care of setting a child's parent. **
 
 ```javascript
-//example
+actor1.setParent(actor2).
 ```
 
 
-### update(  )
-DESC
+### update( [now](/primitives.md#number) ,  [deltaMs](/primitives.md#number) )
+Recursive function to update all children Actor/Component 's of an actor.		
 
 ```javascript
-//example
+actor.update(now, deltaMs)
 ```
 
 

tests/Actor.test.js

@@ -1,16 +1,24 @@
 import Actor from 'cruft/core/Actor.js';
 
 describe("Actor", () => {
+
 	let actor = null;
 
 	beforeEach(() => {
-		actor = new Actor();
+		actor = null;
 	})
 
     it('generates a random guid', () => {
+    	actor = new Actor();
         expect(actor.guid).toBeTruthy();
     });
 
+    it('accepts a passed in guid', () => {
+    	var id = 12;
+    	actor = new Actor(id);
+        expect(actor.guid).toBe(id);
+    });
+
 
 
 })