Function b2CreateShape

external/box2d/Box2D/src/shape.c:163–192

}

static b2ShapeId b2CreateShape( b2BodyId bodyId, const b2ShapeDef* def, const void* geometry, b2ShapeType shapeType )
{
	B2_CHECK_DEF( def );
	B2_ASSERT( b2IsValidFloat( def->density ) && def->density >= 0.0f );
	B2_ASSERT( b2IsValidFloat( def->material.friction ) && def->material.friction >= 0.0f );
	B2_ASSERT( b2IsValidFloat( def->material.restitution ) && def->material.restitution >= 0.0f );
	B2_ASSERT( b2IsValidFloat( def->material.rollingResistance ) && def->material.rollingResistance >= 0.0f );
	B2_ASSERT( b2IsValidFloat( def->material.tangentSpeed ) );

	b2World* world = b2GetWorldLocked( bodyId.world0 );
	if ( world == NULL )
	{
		return ( b2ShapeId ){ 0 };
	}

	b2Body* body = b2GetBodyFullId( world, bodyId );
	b2Transform transform = b2GetBodyTransformQuick( world, body );

	b2Shape* shape = b2CreateShapeInternal( world, body, transform, def, geometry, shapeType );

	if ( def->updateBodyMass == true )
	{
		b2UpdateBodyMassData( world, body );
	}

	b2ValidateSolverSets( world );

	b2ShapeId id = { shape->id + 1, bodyId.world0, shape->generation };
	return id;
}

b2ShapeId b2CreateCircleShape( b2BodyId bodyId, const b2ShapeDef* def, const b2Circle* circle )
{