doc: add comments

src/foundation/components/Animation/AnimationComponent.ts

@@ -68,6 +68,9 @@ const ChangeAnimationInfo = Symbol(
 );
 const PlayEnd = Symbol('AnimationComponentEventPlayEnd');
 
+/**
+ * A component that manages animation.
+ */
 export class AnimationComponent extends Component {
   /// inner states ///
   private __backupDefaultValues: Map<

src/foundation/components/BlendShape/BlendShapeComponent.ts

@@ -11,6 +11,9 @@ import {
 import {IEntity} from '../../core/Entity';
 import {ComponentToComponentMethods} from '../ComponentTypes';
 
+/**
+ * The Component that manages the blend shape.
+ */
 export class BlendShapeComponent extends Component {
   private __weights: number[] = [];
   private __targetNames: string[] = [];

src/foundation/components/Camera/CameraComponent.ts

@@ -33,6 +33,9 @@ import {ComponentToComponentMethods} from '../ComponentTypes';
 import { Is } from '../../misc/Is';
 import { MiscUtil } from '../../misc';
 
+/**
+ * The Component that represents a camera.
+ */
 export class CameraComponent extends Component {
   private static readonly _eye: Vector3 = Vector3.zero();
   private _eyeInner: MutableVector3 = MutableVector3.dummy();

src/foundation/components/CameraController/CameraControllerComponent.ts

@@ -19,6 +19,9 @@ import {
 import {IEntity} from '../../core/Entity';
 import {ComponentToComponentMethods} from '../ComponentTypes';
 
+/**
+ * The Component that controls camera posture.
+ */
 export class CameraControllerComponent extends Component {
   private __cameraComponent?: CameraComponent;
   private __cameraController: ICameraController;

src/foundation/core/Entity.ts

@@ -41,6 +41,9 @@ export interface IEntity extends IRnObject {
 }
 
 /**
+ * The class that represents an entity.
+ *
+ * @remarks
  * The Rhodonite Entity Class which are an entities that exists in space.
  * Entities can acquire various functions by having components on themselves.
  */

src/foundation/core/RnObject.ts

@@ -1,11 +1,17 @@
 import {RnTags, ObjectUID} from '../../types/CommonTypes';
 import {deepCopyUsingJsonStringify} from '../misc/MiscUtil';
 
+/**
+ * A Tag class
+ */
 export type Tag = {
   tag: string;
   value: any;
 };
 
+/**
+ * The Interface of the RnObject.
+ */
 export interface IRnObject {
   objectUID: ObjectUID;
   uniqueName: string;