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#ifndef TERRAIN_CACHE_H
#define TERRAIN_CACHE_H
#include "terrain_loader.h"
#include "vector.h"
#include <boost/shared_ptr.hpp>
#include <map>
#include <cstddef>
class TerrainCache;
struct TerrainCacheObject {
typedef boost::shared_ptr<TerrainCacheObject> p;
TerrainCache *cache;
float *heights;
// FIXME: Support other object types.
std::list<Vector3> objects;
int64_t x, y;
unsigned int width, height;
TerrainCacheObject(TerrainCache *cache, int64_t x, int64_t y, unsigned int width, unsigned int height,
float *heights = NULL, std::list<Vector3> *objects = NULL);
virtual ~TerrainCacheObject();
};
class TerrainCache {
friend class TerrainCacheObject;
private:
typedef std::pair<int64_t, int64_t> intpair;
typedef std::map<intpair, TerrainCacheObject::p> cache_map;
cache_map caches;
size_t max_size;
TerrainCacheObject::p make_object(int64_t x, int64_t y, unsigned int width, unsigned int height, float *heights = NULL);
public:
typedef boost::shared_ptr<TerrainCache> p;
TerrainCache(fs::path root, size_t max_size);
TerrainCache(TerrainLoader::p loader, size_t max_size);
virtual ~TerrainCache();
TerrainLoader::p tl;
TerrainCacheObject::p get_chunk(int64_t x, int64_t y, unsigned int width, unsigned int height);
void add_chunk(float *heights, int64_t x, int64_t y, unsigned int width, unsigned int height);
size_t get_size();
};
#endif
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