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#ifndef RESOURCE_MANAGER_H
#define RESOURCE_MANAGER_H
#include <map>
#include <string>
#include <memory>
#include <stdexcept>
#include <cassert>
template <typename Resource, typename Identifier>
class ResourceManager{
private:
std::map<Identifier,std::unique_ptr<Resource>> resourceMap;
public:
void load(Identifier id, const std::string& path);
Resource& get(Identifier id);
const Resource& get(Identifier id) const;
};
template <typename Resource, typename Identifier>
void
ResourceManager<Resource, Identifier>::load(Identifier id,
const std::string& path){
auto resource = std::make_unique<Resource>();
if( !resource->loadFromFile(path) ){
throw("ResoureManager::load - Failed to load filename: " + path);
}
auto inserted = resourceMap.insert(
std::make_pair(id, std::move(resource))
);
assert(inserted.second);
}
template <typename Resource, typename Identifier>
Resource&
ResourceManager<Resource, Identifier>::get(Identifier id)
{
auto found = resourceMap.find(id);
assert(found != resourceMap.end());
return *found->second;
}
template <typename Resource, typename Identifier>
const Resource&
ResourceManager<Resource, Identifier>::get(Identifier id) const
{
auto found = resourceMap.find(id);
assert(found != resourceMap.end());
return *found->second;
}
#endif // RESOURCE_MANAGER_H
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