From dc104e37842049e040f7e39f4e1aab56cde1488c Mon Sep 17 00:00:00 2001
From: Jon Bergli Heier <snakebite@jvnv.net>
Date: Wed, 1 Jun 2011 19:02:52 +0200
Subject: Moved common files here.

---
 terrain_cache.h | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 terrain_cache.h

(limited to 'terrain_cache.h')

diff --git a/terrain_cache.h b/terrain_cache.h
new file mode 100644
index 0000000..dcc4f34
--- /dev/null
+++ b/terrain_cache.h
@@ -0,0 +1,51 @@
+#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;
+	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);
+	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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