gkGameObjectInstance* gkGameObjectGroup::createGroupInstance(gkScene* scene, const gkResourceName& name)
{
GK_ASSERT(m_instanceManager);
if (m_instanceManager->exists(name))
{
gkLogMessage("GameObjectGroup: Duplicate instance '" << name.getName() << "(" << name.getGroup() << ")'");
return 0;
}
gkGameObjectInstance* newInst = m_instanceManager->create<gkGameObjectInstance>(name);
newInst->_updateFromGroup(this);
gkGameObject* obj = newInst->getRoot();
GK_ASSERT(obj);
if (obj)
obj->setOwner(scene);
Objects::Iterator iter = m_objects.iterator();
while (iter.hasMoreElements())
newInst->addObject(iter.getNext().second);
return newInst;
}
void gkGameObjectInstance::createInstanceImpl(void)
{
if (!m_owner || !m_owner->getOwner())
{
m_instanceState = ST_ERROR;
m_instanceError = "Root object is not in any scene!";
return;
}
gkScene* scene = m_owner->getOwner();
m_owner->createInstance();
#ifdef OGREKIT_USE_PHYSICS
gkGameObjectSet parentingPhysicsObjs;
Objects::Iterator iter = m_objects.iterator();
while (iter.hasMoreElements())
{
gkGameObject* gobj = iter.getNext().second;
gobj->setOwner(scene);
gobj->createInstance();
parentingPhysicsObjs.insert(gobj);
}
scene->_applyBuiltinParents(parentingPhysicsObjs);
scene->_applyBuiltinPhysics(parentingPhysicsObjs);
#endif
}
void gkGameObjectInstance::applyTransform(const gkTransformState& trans)
{
if (!isInstanced())
return;
const gkMatrix4 plocal = trans.toMatrix();
Objects::Iterator iter = m_objects.iterator();
while (iter.hasMoreElements())
{
gkGameObject* obj = iter.getNext().second;
if (obj->hasParent())
{
continue;
}
gkTransformState* initalTransformState = m_objInitialTransformstates.get(obj);
// Update transform relative to owner
gkMatrix4 clocal;
initalTransformState->toMatrix(clocal);
obj->setTransform(plocal * clocal);
}
}
void gkGameObjectInstance::cloneObjects(gkScene* scene, const gkTransformState& from, int time,
const gkVector3& linearVelocity, bool tsLinLocal,
const gkVector3& angularVelocity, bool tsAngLocal)
{
if (!isInstanced())
return;
GK_ASSERT(scene);
const gkMatrix4 plocal = from.toMatrix();
Objects::Iterator iter = m_objects.iterator();
while (iter.hasMoreElements())
{
gkGameObject* oobj = iter.getNext().second;
gkGameObject* nobj = scene->cloneObject(oobj, time);
// be sure this info was not cloned!
GK_ASSERT(!nobj->isGroupInstance());
// Update transform relative to owner
gkGameObjectProperties& props = nobj->getProperties();
gkMatrix4 clocal;
props.m_transform.toMatrix(clocal);
// merge back to transform state
props.m_transform = gkTransformState(plocal * clocal);
nobj->createInstance();
if (props.isRigidOrDynamic() || props.isGhost())
{
if (!linearVelocity.isZeroLength())
nobj->setLinearVelocity(linearVelocity, tsLinLocal ? TRANSFORM_LOCAL : TRANSFORM_PARENT);
}
if (props.isRigid())
{
if (!angularVelocity.isZeroLength())
nobj->setAngularVelocity(angularVelocity, tsAngLocal ? TRANSFORM_LOCAL : TRANSFORM_PARENT);
}
}
}
gkGameObjectInstance::~gkGameObjectInstance()
{
if (m_owner != 0)
gkGameObjectManager::getSingleton().destroy(m_owner->getResourceHandle());
m_owner = 0;
Objects::Iterator iter = m_objects.iterator();
while (iter.hasMoreElements())
{
gkGameObject* gobj = iter.getNext().second;
m_objInitialTransformstates.remove(gobj);
GK_ASSERT(!gobj->isInstanced());
delete gobj;
}
m_objects.clear();
}
void gkGameObjectInstance::destroyInstanceImpl(void)
{
if (!m_owner || !m_owner->getOwner())
{
m_instanceState = ST_ERROR;
m_instanceError = "Root object is not in any scene!";
return;
}
Objects::Iterator iter = m_objects.iterator();
while (iter.hasMoreElements())
{
gkGameObject* gobj = iter.getNext().second;
gobj->destroyInstance();
gobj->setOwner(0);
gobj->setParent(0);
}
}