void Display::updateDisplay(Entities &entities){
al_clear_to_color(al_map_rgba(0, 0, 0, 255));
std::list<Entity*> entitiesTemp = entities.getEntities();
for (std::list<Entity*>::iterator it = entitiesTemp.begin(); it != entitiesTemp.end(); it++){
(*it)->draw();
}
displayText(score, Coordinates(80, 10), font2);
al_flip_display();
}
PyObject * Entities<T>::mp_subscript(PyObject* self, PyObject* key /*entityID*/)
{
Entities* lpEntities = static_cast<Entities*>(self);
ENTITY_ID entityID = PyLong_AsLong(key);
if (PyErr_Occurred())
return NULL;
PyObject * pyEntity = NULL;
ENTITYS_MAP& entities = lpEntities->getEntities();
ENTITYS_MAP::const_iterator iter = entities.find(entityID);
if (iter != entities.end())
pyEntity = iter->second.get();
if(pyEntity == NULL)
{
PyErr_Format(PyExc_KeyError, "%d", entityID);
PyErr_PrintEx(0);
return NULL;
}
Py_INCREF(pyEntity);
return pyEntity;
}
//-------------------------------------------------------------------------------------
void SpaceViewer::updateClient()
{
if (spaceID_ == 0)
return;
Space* space = Spaces::findSpace(spaceID_);
if (space == NULL || !space->isGood())
{
return;
}
// 最多每次更新500个实体
const int MAX_UPDATE_COUNT = 100;
int updateCount = 0;
// 获取本次与上次结果的差值，将差值放入stream中更新到客户端
// 差值包括新增的实体，以及已经有的实体的位置变化
MemoryStream s;
Entities<Entity>* pEntities = Cellapp::getSingleton().pEntities();
Entities<Entity>::ENTITYS_MAP& entitiesMap = pEntities->getEntities();
// 先检查已经监视的实体，对于版本号较低的优先更新
if (updateCount < MAX_UPDATE_COUNT)
{
std::map< ENTITY_ID, ViewEntity >::iterator viewerIter = viewedEntities.begin();
for (; viewerIter != viewedEntities.end(); )
{
if (updateCount >= MAX_UPDATE_COUNT)
break;
ViewEntity& viewEntity = viewerIter->second;
if (viewEntity.updateVersion > lastUpdateVersion_)
continue;
Entities<Entity>::ENTITYS_MAP::iterator iter = entitiesMap.find(viewerIter->first);
// 找不到实体， 说明已经销毁或者跑到其他进程了
// 如果在其他进程， 其他进程会将其更新到客户端
if (iter == entitiesMap.end())
{
s << viewerIter->first;
s << false; // true为更新， false为销毁
// 将其从viewedEntities删除
viewedEntities.erase(viewerIter++);
}
else
{
Entity* pEntity = static_cast<Entity*>(iter->second.get());
if (pEntity->spaceID() != spaceID_)
{
// 将其从viewedEntities删除
viewedEntities.erase(viewerIter++);
continue;
}
/*
if (pEntity->cellID() != cellID_)
{
// 将其从viewedEntities删除
viewedEntities.erase(viewerIter++);
continue;
}
*/
// 有新增的实体或者已经观察到的实体，检查位置变化
// 如果没有变化则pass
if ((viewEntity.position - pEntity->position()).length() <= 0.0004f &&
(viewEntity.direction.dir - pEntity->direction().dir).length() <= 0.0004f)
{
++viewerIter;
continue;
}
viewEntity.entityID = pEntity->id();
viewEntity.position = pEntity->position();
viewEntity.direction = pEntity->direction();
++viewEntity.updateVersion;
s << viewEntity.entityID;
s << true; // true为更新， false为销毁
s << pEntity->pScriptModule()->getUType();
s << viewEntity.position.x << viewEntity.position.y << viewEntity.position.z;
s << viewEntity.direction.roll() << viewEntity.direction.pitch() << viewEntity.direction.yaw();
++updateCount;
++viewerIter;
}
}
}
// 再检查是否有新增的实体
if (updateCount < MAX_UPDATE_COUNT)
{
Entities<Entity>::ENTITYS_MAP::iterator iter = entitiesMap.begin();
for (; iter != entitiesMap.end(); ++iter)
{
if (updateCount >= MAX_UPDATE_COUNT)
break;
Entity* pEntity = static_cast<Entity*>(iter->second.get());
if (pEntity->spaceID() != spaceID_)
continue;
/*
if (pEntity->cellID() != cellID_)
continue;
*/
std::map< ENTITY_ID, ViewEntity >::iterator findIter = viewedEntities.find(pEntity->id());
ViewEntity& viewEntity = viewedEntities[pEntity->id()];
if (findIter != viewedEntities.end())
continue;
viewEntity.entityID = pEntity->id();
viewEntity.position = pEntity->position();
viewEntity.direction = pEntity->direction();
viewEntity.updateVersion = lastUpdateVersion_ + 1;
++updateCount;
s << viewEntity.entityID;
s << true; // true为更新， false为销毁
s << pEntity->pScriptModule()->getUType();
s << viewEntity.position.x << viewEntity.position.y << viewEntity.position.z;
s << viewEntity.direction.roll() << viewEntity.direction.pitch() << viewEntity.direction.yaw();
}
}
sendStream(&s, updateType_);
// 如果全部更新完毕，更换版本号
if (updateCount < MAX_UPDATE_COUNT)
++lastUpdateVersion_;
}