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navigation.cpp
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navigation.cpp
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/*
This source file is part of KBEngine
For the latest info, see http://www.kbengine.org/
Copyright (c) 2008-2018 KBEngine.
KBEngine is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
KBEngine is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with KBEngine. If not, see <http://www.gnu.org/licenses/>.
*/
#include "navigation.h"
#include "resmgr/resmgr.h"
#include "thread/threadguard.h"
#include "navigation_tile_handle.h"
#include "navigation_mesh_handle.h"
namespace KBEngine{
KBE_SINGLETON_INIT(Navigation);
//-------------------------------------------------------------------------------------
Navigation::Navigation():
navhandles_(),
mutex_()
{
}
//-------------------------------------------------------------------------------------
Navigation::~Navigation()
{
finalise();
}
//-------------------------------------------------------------------------------------
void Navigation::finalise()
{
KBEngine::thread::ThreadGuard tg(&mutex_);
KBEUnordered_map<std::string, NavigationHandlePtr>::iterator iter = navhandles_.begin();
for (; iter != navhandles_.end(); iter++)
{
SAFE_RELEASE(iter->second);
}
navhandles_.clear();
}
//-------------------------------------------------------------------------------------
bool Navigation::removeNavigation(std::string resPath)
{
KBEngine::thread::ThreadGuard tg(&mutex_);
KBEUnordered_map<std::string, NavigationHandlePtr>::iterator iter = navhandles_.find(resPath);
if(navhandles_.find(resPath) != navhandles_.end())
{
//iter->second->decRef();
SAFE_RELEASE(iter->second);
navhandles_.erase(iter);
DEBUG_MSG(fmt::format("Navigation::removeNavigation: ({}) is destroyed!\n", resPath));
return true;
}
return false;
}
//-------------------------------------------------------------------------------------
NavigationHandlePtr Navigation::findNavigation(std::string resPath)
{
KBEngine::thread::ThreadGuard tg(&mutex_);
KBEUnordered_map<std::string, NavigationHandlePtr>::iterator iter = navhandles_.find(resPath);
if(navhandles_.find(resPath) != navhandles_.end())
{
if(iter->second == NULL)
return NULL;
if(iter->second->type() == NavigationHandle::NAV_MESH)
{
return iter->second;
}
else if (iter->second->type() == NavigationHandle::NAV_TILE)
{
// 由于tile需要做碰撞, 每一个space都需要一份新的数据, 我们这里采用拷贝的方式来增加构造速度
NavTileHandle* pNavTileHandle = new NavTileHandle(*(KBEngine::NavTileHandle*)iter->second); // 注意,NAV_TILE寻路方式使用findNavigation需要自己释放内存
DEBUG_MSG(fmt::format("Navigation::findNavigation: copy NavTileHandle({:p})!\n", (void*)pNavTileHandle));
return NavigationHandlePtr(pNavTileHandle);
}
return iter->second;
}
return NULL;
}
//-------------------------------------------------------------------------------------
bool Navigation::hasNavigation(std::string resPath)
{
KBEngine::thread::ThreadGuard tg(&mutex_);
return navhandles_.find(resPath) != navhandles_.end();
}
//-------------------------------------------------------------------------------------
NavigationHandlePtr Navigation::loadNavigation(std::string resPath, const std::map< int, std::string >& params)
{
KBEngine::thread::ThreadGuard tg(&mutex_);
if(resPath == "")
return NULL;
KBEUnordered_map<std::string, NavigationHandlePtr>::iterator iter = navhandles_.find(resPath);
if(iter != navhandles_.end())
{
return iter->second;
}
NavigationHandle* pNavigationHandle_ = NULL;
std::string path = resPath;
path = Resmgr::getSingleton().matchPath(path);
if(path.size() == 0)
return NULL;
wchar_t* wpath = strutil::char2wchar(path.c_str());
std::wstring wspath = wpath;
free(wpath);
std::vector<std::wstring> results;
Resmgr::getSingleton().listPathRes(wspath, L"tmx", results);
if(results.size() > 0)
{
pNavigationHandle_ = NavTileHandle::create(resPath, params);
}
else
{
results.clear();
Resmgr::getSingleton().listPathRes(wspath, L"navmesh", results);
if(results.size() == 0)
{
return NULL;
}
pNavigationHandle_ = NavMeshHandle::create(resPath, params);
}
navhandles_[resPath] = NavigationHandlePtr(pNavigationHandle_);
return pNavigationHandle_;
}
//-------------------------------------------------------------------------------------
}