docs(joint): mark the joint API as alpha

Author: willeastcott

src/framework/components/joint/component.js

@@ -296,6 +296,7 @@ const jointImpls = {
  *
  * @hideconstructor
  * @category Physics
+ * @alpha
  */
 class JointComponent extends Component {
     /**

src/framework/components/joint/constants.js

@@ -2,6 +2,7 @@
  * Joint rigidly locks all degrees of freedom, welding the two bodies together.
  *
  * @category Physics
+ * @alpha
  */
 export const JOINTTYPE_FIXED = 'fixed';
 
@@ -10,6 +11,7 @@ export const JOINTTYPE_FIXED = 'fixed';
  * limits constrain the swing (cone) and twist angles.
  *
  * @category Physics
+ * @alpha
  */
 export const JOINTTYPE_BALL = 'ball';
 
@@ -18,6 +20,7 @@ export const JOINTTYPE_BALL = 'ball';
  * axle. Supports optional rotation limits and a motor.
  *
  * @category Physics
+ * @alpha
  */
 export const JOINTTYPE_HINGE = 'hinge';
 
@@ -26,6 +29,7 @@ export const JOINTTYPE_HINGE = 'hinge';
  * runner or a piston. Supports optional travel limits and a motor.
  *
  * @category Physics
+ * @alpha
  */
 export const JOINTTYPE_SLIDER = 'slider';
 
@@ -34,26 +38,30 @@ export const JOINTTYPE_SLIDER = 'slider';
  * limited or free, with optional springs.
  *
  * @category Physics
+ * @alpha
  */
 export const JOINTTYPE_6DOF = '6dof';
 
 /**
  * Specified degree of freedom has free movement.
  *
  * @category Physics
+ * @alpha
  */
 export const MOTION_FREE = 'free';
 
 /**
  * Specified degree of freedom has limited movement.
  *
  * @category Physics
+ * @alpha
  */
 export const MOTION_LIMITED = 'limited';
 
 /**
  * Specified degree of freedom is locked and allows no movement.
  *
  * @category Physics
+ * @alpha
  */
 export const MOTION_LOCKED = 'locked';

src/framework/components/joint/system.js

@@ -24,6 +24,7 @@ const _properties = [
  * Manages creation of {@link JointComponent}s.
  *
  * @category Physics
+ * @alpha
  */
 class JointComponentSystem extends ComponentSystem {
     /**

src/framework/components/registry.js

@@ -109,6 +109,7 @@ class ComponentSystemRegistry extends EventHandler {
      *
      * @type {JointComponentSystem|undefined}
      * @readonly
+     * @alpha
      */
     joint;