add style for debugging

src/collision/Shape.ts

@@ -27,6 +27,7 @@ import { RayCastOutput, RayCastInput, AABBValue } from './AABB';
 import { DistanceProxy } from './Distance';
 import type { Transform, TransformValue } from '../common/Transform';
 import type { Vec2Value } from '../common/Vec2';
+import { Style } from '../util/Testbed';
 
 // todo make shape an interface
 
@@ -44,6 +45,9 @@ export abstract class Shape {
  */
  m_radius: number;
 
+ /** Styling for dev-tools. */
+ style: Style = {};
+
  /** @internal */
  abstract _reset(): void;
 

src/dynamics/Body.ts

@@ -35,6 +35,7 @@ import { Shape } from '../collision/Shape';
 import { JointEdge } from "./Joint";
 import { World } from "./World";
 import { ContactEdge } from "./Contact";
+import { Style } from '../util/Testbed';
 
 
 /** @internal */ const _ASSERT = typeof ASSERT === 'undefined' ? false : ASSERT;
@@ -217,6 +218,9 @@ export class Body {
  /** @internal */ m_next: Body | null;
  /** @internal */ m_destroyed: boolean;
 
+ /** Styling for dev-tools. */
+ style: Style = {};
+
  /** @internal */
  constructor(world: World, def: BodyDef) {
  def = options(def, BodyDefDefault);

src/dynamics/Fixture.ts

@@ -30,6 +30,7 @@ import { Shape, ShapeType } from '../collision/Shape';
 import { Body, MassData } from "./Body";
 import { BroadPhase } from "../collision/BroadPhase";
 import { TransformValue } from "../common/Transform";
+import { Style } from '../util/Testbed';
 
 
 /** @internal */ const _ASSERT = typeof ASSERT === 'undefined' ? false : ASSERT;
@@ -131,6 +132,9 @@ export class Fixture {
  /** @internal */ m_proxyCount: number;
  /** @internal */ m_userData: unknown;
 
+ /** Styling for dev-tools. */
+ style: Style = {};
+
  constructor(body: Body, def: FixtureDef);
  constructor(body: Body, shape: Shape, def?: FixtureOpt);
  constructor(body: Body, shape: Shape, density?: number);

src/dynamics/Joint.ts

@@ -25,6 +25,7 @@
 import type { Vec2, Vec2Value } from '../common/Vec2';
 import type { Body } from './Body';
 import { TimeStep } from "./Solver";
+import { Style } from '../util/Testbed';
 
 /** @internal */ const _ASSERT = typeof ASSERT === 'undefined' ? false : ASSERT;
 
@@ -108,6 +109,9 @@ export abstract class Joint {
  /** @internal */ m_islandFlag: boolean = false;
  /** @internal */ m_userData: unknown;
 
+ /** Styling for dev-tools. */
+ style: Style = {};
+
  constructor(def: JointDef);
  constructor(def: JointOpt, bodyA: Body, bodyB: Body);
  constructor(def: JointDef | JointOpt, bodyA?: Body, bodyB?: Body) {