1 files changed, 73 insertions, 0 deletions
diff --git a/terrain.h b/terrain.h
new file mode 100644
index 0000000..736b719
--- /dev/null
+++ b/terrain.h
@@ -0,0 +1,73 @@
+#ifndef TERRAIN_H
+#define TERRAIN_H
+
+#include "vector.h"
+
+#include <list>
+#include <set>
+
+class Terrain {
+	private:
+		std::set<std::pair<int, int> > chunk_indices;
+
+	public:
+		struct Chunk;
+
+		struct Node {
+			Chunk *chunk;
+			float x, y;
+			float vertex_array[12];
+
+			Node(Chunk *chunk, float x, float y);
+			virtual ~Node();
+
+			float distance(float px, float pz);
+			void fill();
+			void draw_grid();
+			void draw_normal();
+			float get_height(float px, float py);
+			Vector3 get_normal(int index);
+		};
+
+		struct Chunk {
+			Terrain *terrain;
+			Node **nodes;
+			float x, y, width, height;
+			int h_width, h_height;
+			float *heights;
+			Vector3 *normals;
+			size_t buf_size;
+			unsigned int vbo_object;
+			unsigned int node_count;
+			unsigned int vertices;
+			float init_time;
+
+			Chunk(Terrain *tree, float x, float y, float width, float height);
+			~Chunk();
+
+			float distance(float px, float pz);
+			void make_vbo();
+			Node *find(float x, float y);
+			void calc_normals();
+		};
+
+		static const int chunk_size = 32;
+
+		std::list<Chunk*> chunks;
+		Terrain();
+		virtual ~Terrain();
+
+		float *generate_heights(int x, int y, int width, int height);
+		float *get_chunk(int x, int y, int width, int height);
+		bool has_chunk(int x, int y);
+		void save_chunk(float *chunk, int x, int y, int width, int height);
+		float *load_chunk(int x, int y, int width, int height);
+
+		void raise(float x, float z, float radius, float focus, float strength, bool up = true);
+
+		void update(float x, float z);
+		Chunk *find_chunk(float x, float y);
+		Node *find(float x, float y);
+};
+
+#endif