X-Git-Url: https://eleni.mutantstargoat.com/git/?a=blobdiff_plain;f=src%2Fterrain.h;h=337a03b90b7192a2e8b4610b1461f3a7bf6a969a;hb=22347bb45e427ea763295d77da0de0d2ef9c2395;hp=d6f4844c1f9618c2f0a8bc2a3d68706ae87f365e;hpb=54cc76a89b4221fac1b7f4a58259ca0ce836177d;p=demo

diff --git a/src/terrain.h b/src/terrain.h
index d6f4844..337a03b 100644
--- a/src/terrain.h
+++ b/src/terrain.h
@@ -1,6 +1,55 @@
 #ifndef TERRAIN_H_
 #define TERRAIN_H_
 
+#include "image.h"
 
+class Camera;
+class Scene;
+
+// terrain 8a ftiaxnei skini k taisma renderer
+class TerrainTile {
+private:
+	Mesh *mesh;
+
+	friend class Terrain;
+};
+
+/* parameters needed in terrain generation */
+
+struct TerrainParams {
+	float xsz; /* terrain size in x axis */
+	float ysz; /* terrain size in y axis */
+	float max_height; /* max height of the heightfield */
+	int xtiles; /* number of tiles in x axis */
+	int ytiles; /* number of tiles in y axis */
+	int tile_usub;
+	int tile_vsub;
+	int num_octaves; /* Perlin noise sums */
+	float noise_freq; /* Perlin noise scaling factor */
+	Image coarse_heightmap; /* mask for low detail heightmap */
+};
+
+class Terrain {
+private:
+	TerrainParams params;
+	mutable Scene *vis_scene; /* set of visible tiles returned by get_visible */
+
+	std::vector<TerrainTile> tiles;
+
+public:
+	Material material;
+
+	Terrain();
+	~Terrain();
+
+	bool init();
+	void destroy();
+
+	bool generate(const TerrainParams &params);
+	Scene *get_visible(const Camera *camera) const;
+
+	float get_height(float u, float v) const;
+	float get_height(const Vec3 &pos) const; /* world coordinates */
+};
 
 #endif // TERRAIN_H_
\ No newline at end of file