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/* SpriteSet.cpp
Copyright (c) 2014 by Michael Zahniser
Endless Sky is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later version.
Endless Sky 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 General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "SpriteSet.h"
#include "../Logger.h"
#include "Sprite.h"
#include <map>
#include <mutex>
using namespace std;
namespace {
map<string, Sprite> sprites;
mutex modifyMutex;
}
const Sprite *SpriteSet::Get(const string &name)
{
return Modify(name);
}
void SpriteSet::CheckReferences()
{
for(const auto &pair : sprites)
{
const Sprite &sprite = pair.second;
if(sprite.Height() == 0 && sprite.Width() == 0)
// Landscapes are allowed to still be empty.
if(!pair.first.starts_with("land/"))
Logger::LogError("Warning: image \"" + pair.first + "\" is referred to, but has no pixels.");
}
}
Sprite *SpriteSet::Modify(const string &name)
{
lock_guard<mutex> guard(modifyMutex);
auto it = sprites.find(name);
if(it == sprites.end())
it = sprites.emplace(name, Sprite(name)).first;
return &it->second;
}
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