void Node::setPhysicsBody(PhysicsBody* body)
{
if (body != nullptr)
{
body->_node = this;
body->retain();
// physics rotation based on body position, but node rotation based on node anthor point
// it cann't support both of them, so I clear the anthor point to default.
if (!getAnchorPoint().equals(Vec2::ANCHOR_MIDDLE))
{
CCLOG("Node warning: setPhysicsBody sets anchor point to Vec2::ANCHOR_MIDDLE.");
setAnchorPoint(Vec2::ANCHOR_MIDDLE);
}
}
if (_physicsBody != nullptr)
{
PhysicsWorld* world = _physicsBody->getWorld();
_physicsBody->removeFromWorld();
_physicsBody->_node = nullptr;
_physicsBody->release();
if (world != nullptr && body != nullptr)
{
world->addBody(body);
}
}
_physicsBody = body;
if (body != nullptr)
{
Node* node;
Scene* scene = nullptr;
for (node = this->getParent(); node != nullptr; node = node->getParent())
{
Scene* tmpScene = dynamic_cast<Scene*>(node);
if (tmpScene != nullptr && tmpScene->getPhysicsWorld() != nullptr)
{
scene = tmpScene;
break;
}
}
updatePhysicsBodyPosition(scene);
updatePhysicsBodyRotation(scene);
}
}
void Node::setPhysicsBody(PhysicsBody* body)
{
if (body != nullptr)
{
body->_node = this;
body->retain();
// physics rotation based on body position, but node rotation based on node anthor point
// it cann't support both of them, so I clear the anthor point to default.
if (!getAnchorPoint().equals(Point::ANCHOR_MIDDLE))
{
CCLOG("Node warning: setPhysicsBody sets anchor point to Point::ANCHOR_MIDDLE.");
setAnchorPoint(Point::ANCHOR_MIDDLE);
}
}
if (_physicsBody != nullptr)
{
PhysicsWorld* world = _physicsBody->getWorld();
_physicsBody->removeFromWorld();
_physicsBody->_node = nullptr;
_physicsBody->release();
if (world != nullptr && body != nullptr)
{
world->addBody(body);
}
}
_physicsBody = body;
if (body != nullptr)
{
Node* parent = getParent();
Point pos = parent != nullptr ? parent->convertToWorldSpace(getPosition()) : getPosition();
_physicsBody->setPosition(pos);
_physicsBody->setRotation(getRotation());
}
}