add import line

behaviors/default/bouncingBall.js

@@ -3,7 +3,16 @@
 // A very simple demonstration of how to create a similar application
 // using the DynamicTexture surface.
 
-class BouncingLogoActor {
+// the following import statement is solely for the type checking and
+// autocompletion features in IDE.  A Behavior cannot inherit from
+// another behavior or a base class but can use the methods and
+// properties of the card to which it is installed.
+// The prototype classes ActorBehavior and PawnBehavior provide
+// the features defined at the card object.
+
+import {ActorBehavior, PawnBehavior} from "../PrototypeBehavior";
+
+class BouncingLogoActor extends ActorBehavior {
     setup() {
         this.SPEED = 10;
         this.position = [512, 512];
@@ -51,7 +60,7 @@ class BouncingLogoActor {
     }
 }
 
-class BouncingLogoPawn {
+class BouncingLogoPawn extends PawnBehavior {
     setup() {
         this.updatePosition(this.actor.position);
         this.listen("updatePosition", "updatePosition");

behaviors/default/csmLights.js

@@ -1,4 +1,13 @@
-class LightPawn {
+// the following import statement is solely for the type checking and
+// autocompletion features in IDE.  A Behavior cannot inherit from
+// another behavior or a base class but can use the methods and
+// properties of the card to which it is installed.
+// The prototype classes ActorBehavior and PawnBehavior provide
+// the features defined at the card object.
+
+import {ActorBehavior, PawnBehavior} from "../PrototypeBehavior";
+
+class LightPawn extends PawnBehavior {
     setup() {
         console.log("LightPawn");
         let trm = this.service("ThreeRenderManager");

behaviors/default/demo.js

@@ -1,4 +1,13 @@
-class CircleActor {
+// the following import statement is solely for the type checking and
+// autocompletion features in IDE.  A Behavior cannot inherit from
+// another behavior or a base class but can use the methods and
+// properties of the card to which it is installed.
+// The prototype classes ActorBehavior and PawnBehavior provide
+// the features defined at the card object.
+
+import {ActorBehavior, PawnBehavior} from "../PrototypeBehavior";
+
+class CircleActor extends ActorBehavior {
     setup() {
         if (!this.circling) {
             this.circling = true;

behaviors/default/lights.js

@@ -1,4 +1,13 @@
-class LightPawn {
+// the following import statement is solely for the type checking and
+// autocompletion features in IDE.  A Behavior cannot inherit from
+// another behavior or a base class but can use the methods and
+// properties of the card to which it is installed.
+// The prototype classes ActorBehavior and PawnBehavior provide
+// the features defined at the card object.
+
+import {ActorBehavior, PawnBehavior} from "../PrototypeBehavior";
+
+class LightPawn extends PawnBehavior {
     setup() {
         let trm = this.service("ThreeRenderManager");
         let group = this.shape;

behaviors/default/mirror.js

@@ -3,7 +3,16 @@
 // Croquet Microverse
 // A variable sized rectangular mirror
 
-class MirrorPawn {
+// the following import statement is solely for the type checking and
+// autocompletion features in IDE.  A Behavior cannot inherit from
+// another behavior or a base class but can use the methods and
+// properties of the card to which it is installed.
+// The prototype classes ActorBehavior and PawnBehavior provide
+// the features defined at the card object.
+
+import {ActorBehavior, PawnBehavior} from "../PrototypeBehavior";
+
+class MirrorPawn extends PawnBehavior {
     setup() {
         this.constructMirror();
     }
@@ -38,4 +47,4 @@ export default {
             pawnBehaviors: [MirrorPawn],
         }
     ]
-}
+}

behaviors/default/openPortal.js

@@ -1,4 +1,13 @@
-class PortalButtonActor {
+// the following import statement is solely for the type checking and
+// autocompletion features in IDE.  A Behavior cannot inherit from
+// another behavior or a base class but can use the methods and
+// properties of the card to which it is installed.
+// The prototype classes ActorBehavior and PawnBehavior provide
+// the features defined at the card object.
+
+import {ActorBehavior, PawnBehavior} from "../PrototypeBehavior";
+
+class PortalButtonActor extends ActorBehavior {
     setup() {
         this.listen("openPortal", "openPortal");
     }
@@ -40,7 +49,7 @@ class PortalButtonActor {
     }
 }
 
-class PortalButtonPawn {
+class PortalButtonPawn extends PawnBehavior {
     setup() {
         this.addEventListener("pointerMove", "nop");
         this.addEventListener("pointerEnter", "hilite");

behaviors/default/pool.js

@@ -3,8 +3,16 @@
 // Croquet Microverse
 // A variable sized rectangular pool of water
 
+// the following import statement is solely for the type checking and
+// autocompletion features in IDE.  A Behavior cannot inherit from
+// another behavior or a base class but can use the methods and
+// properties of the card to which it is installed.
+// The prototype classes ActorBehavior and PawnBehavior provide
+// the features defined at the card object.
 
-class PoolActor {
+import {ActorBehavior, PawnBehavior} from "../PrototypeBehavior";
+
+class PoolActor extends ActorBehavior {
     setup() {
         this.future(1000).update();
         let version = '0.1';
@@ -16,7 +24,7 @@ class PoolActor {
     }
 }
 
-class PoolPawn {
+class PoolPawn extends PawnBehavior {
     setup() {
         this.constructPool();
         this.listen("updatePool", this.updatePool);

behaviors/default/replaceWorld.js

@@ -2,7 +2,16 @@
 // https://croquet.io
 // [email protected]
 
-class ReplaceWorldPawn {
+// the following import statement is solely for the type checking and
+// autocompletion features in IDE.  A Behavior cannot inherit from
+// another behavior or a base class but can use the methods and
+// properties of the card to which it is installed.
+// The prototype classes ActorBehavior and PawnBehavior provide
+// the features defined at the card object.
+
+import {ActorBehavior, PawnBehavior} from "../PrototypeBehavior";
+
+class ReplaceWorldPawn extends PawnBehavior {
 
     get targetURL() { return this.actor._cardData.replaceWorldTargetURL; }
     set targetURL(url) { if (this.targetURL !== url) this.say("setCardData", { replaceWorldTargetURL: url }); }

behaviors/default/spatialSound.js

@@ -1,4 +1,13 @@
-class SpatialSoundActor {
+// the following import statement is solely for the type checking and
+// autocompletion features in IDE.  A Behavior cannot inherit from
+// another behavior or a base class but can use the methods and
+// properties of the card to which it is installed.
+// The prototype classes ActorBehavior and PawnBehavior provide
+// the features defined at the card object.
+
+import {ActorBehavior, PawnBehavior} from "../PrototypeBehavior";
+
+class SpatialSoundActor extends ActorBehavior {
     setup() {
         this.listen("tapped", "tapped");
         this.listen("ended", "ended");
@@ -44,7 +53,7 @@ class SpatialSoundActor {
     }
 }
 
-class SpatialSoundPawn {
+class SpatialSoundPawn extends PawnBehavior {
     setup() {
         this.handler = () => this.start();
         document.addEventListener("pointerdown", this.handler);

behaviors/default/spin.js

@@ -3,7 +3,16 @@
 // Croquet Microverse
 // Adds drag-to-spin around the vertical axis to a Card
 
-class SpinActor {
+// the following import statement is solely for the type checking and
+// autocompletion features in IDE.  A Behavior cannot inherit from
+// another behavior or a base class but can use the methods and
+// properties of the card to which it is installed.
+// The prototype classes ActorBehavior and PawnBehavior provide
+// the features defined at the card object.
+
+import {ActorBehavior, PawnBehavior} from "../PrototypeBehavior";
+
+class SpinActor extends ActorBehavior {
     setup() {
         this.listen("newAngle", "newAngle");
         this.listen("startSpinning", "startSpinning");
@@ -43,7 +52,7 @@ class SpinActor {
     }
 }
 
-class SpinPawn {
+class SpinPawn extends PawnBehavior {
     setup() {
         this.addEventListener("pointerDown", "onPointerDown");
         this.addEventListener("pointerUp", "onPointerUp");

behaviors/default/synchronousLoad.js

@@ -1,4 +1,13 @@
-class SynchronousCardLoaderPawn {
+// the following import statement is solely for the type checking and
+// autocompletion features in IDE.  A Behavior cannot inherit from
+// another behavior or a base class but can use the methods and
+// properties of the card to which it is installed.
+// The prototype classes ActorBehavior and PawnBehavior provide
+// the features defined at the card object.
+
+import {ActorBehavior, PawnBehavior} from "../PrototypeBehavior";
+
+class SynchronousCardLoaderPawn extends PawnBehavior {
     setup() {
         this.subscribe(this.sessionId, "synchronousLoadCardsStarted", "synchronousLoadCardsStarted");
         this.subscribe(this.sessionId, "allSynchronousCardsLoaded", "allSynchronousCardsLoaded");

behaviors/default/text3D.js

@@ -14,8 +14,16 @@
 // Copyright 2022 Croquet Corporation
 */
 
+// the following import statement is solely for the type checking and
+// autocompletion features in IDE.  A Behavior cannot inherit from
+// another behavior or a base class but can use the methods and
+// properties of the card to which it is installed.
+// The prototype classes ActorBehavior and PawnBehavior provide
+// the features defined at the card object.
 
-class Text3DPawn {
+import {ActorBehavior, PawnBehavior} from "../PrototypeBehavior";
+
+class Text3DPawn extends PawnBehavior {
     setup() {
         this.generateText3D();
         this.listen("updateShape", "generateText3D");

behaviors/default/urlLink.js

@@ -1,8 +1,17 @@
 // turn a card into a clickable link that will launch another web page
 // Copyright 2022 Croquet Corporation
-// DAS 
+// DAS
 
-class URLPawn {
+// the following import statement is solely for the type checking and
+// autocompletion features in IDE.  A Behavior cannot inherit from
+// another behavior or a base class but can use the methods and
+// properties of the card to which it is installed.
+// The prototype classes ActorBehavior and PawnBehavior provide
+// the features defined at the card object.
+
+import {ActorBehavior, PawnBehavior} from "../PrototypeBehavior";
+
+class URLPawn extends PawnBehavior {
     setup() {
         this.addEventListener("pointerTap", "tap");
         this.addEventListener("pointerEnter", "enter");
@@ -78,4 +87,4 @@ export default {
             pawnBehaviors: [URLPawn]
         }
     ]
-}
+}

behaviors/default/video.js

@@ -12,7 +12,16 @@
   There is a case that the session comes back from dormant. so care is taken that the video element recreated won't start playing.
 */
 
-class VideoActor {
+// the following import statement is solely for the type checking and
+// autocompletion features in IDE.  A Behavior cannot inherit from
+// another behavior or a base class but can use the methods and
+// properties of the card to which it is installed.
+// The prototype classes ActorBehavior and PawnBehavior provide
+// the features defined at the card object.
+
+import {ActorBehavior, PawnBehavior} from "../PrototypeBehavior";
+
+class VideoActor extends ActorBehavior {
     setup() {
         this.listen("setSize", "setSize");
         this.listen("ended", "ended");
@@ -152,7 +161,7 @@ class VideoActor {
     }
 }
 
-class VideoPawn {
+class VideoPawn extends PawnBehavior {
     setup() {
         this.addEventListener("pointerTap", "tapped");
         this.listen("cardDataSet", "videoChanged");
@@ -465,8 +474,7 @@ class VideoPawn {
     }
 }
 
-
-class VideoButtonActor {
+class VideoButtonActor extends ActorBehavior {
     // setup() {
     // }
 
@@ -480,7 +488,7 @@ class VideoButtonActor {
     }
 }
 
-class VideoButtonPawn {
+class VideoButtonPawn extends PawnBehavior {
     setup() {
         if (this.actor._cardData.isPrototype) {return;}