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#ifndef TERRAIN_CACHE_H
#define TERRAIN_CACHE_H
#include "terrain_loader.h"
#include <boost/shared_ptr.hpp>
#include <map>
#include <cstddef>
class TerrainCache;
struct TerrainCacheObject {
typedef boost::shared_ptr<TerrainCacheObject> p;
TerrainCache *cache;
float *heights;
int x, y, width, height;
TerrainCacheObject(TerrainCache *cache, int x, int y, int width, int height);
virtual ~TerrainCacheObject();
};
class TerrainCache {
friend class TerrainCacheObject;
private:
typedef std::pair<int, int> intpair;
typedef std::map<intpair, TerrainCacheObject::p> cache_map;
cache_map caches;
TerrainLoader *tl;
size_t max_size;
TerrainCacheObject::p make_object(int x, int y, int width, int height);
public:
TerrainCache(int seed, fs::path root, size_t max_size);
virtual ~TerrainCache();
TerrainCacheObject::p get_chunk(int x, int y, int width, int height);
size_t get_size();
};
#endif
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