terrain.hpp

   1
   2 #ifndef SHADY_TERRAIN_HPP
   3 #define SHADY_TERRAIN_HPP
   4
   5 #include "transform.hpp"
   6
   7 #include <vector>
   8
   9 class terrain{
  10
  11 public:
  12
  13         terrain(int res, float size, float height);
  14         ~terrain();
  15
  16         void generate(int randres, float divisor, float power, int seed);
  17
  18         void drawGl() const;
  19
  20         void generateVertices();
  21
  22         void drawVertices(vec pos) const;
  23
  24         float heightAt(float x, float y) const;
  25
  26 private:
  27
  28         struct Vertex {
  29
  30                 vec pos;
  31
  32                 vec normal;
  33
  34         };
  35
  36         int res;
  37         float size;
  38         float height;
  39
  40         float ** data;
  41
  42         float xVal(int x, int y) const;
  43         float yVal(int x, int y) const;
  44         float zVal(int x, int y) const;
  45
  46         void drawGlVertex(int x, int y) const;
  47
  48         static void setVertexArray(Vertex * vert);
  49
  50         enum ToCenter {
  51                 X0 = 1,
  52                 X1 = 2,
  53                 Y0 = 4,
  54                 Y1 = 8,
  55                 None
  56         };
  57
  58         void addRect(std::vector<unsigned short> & d, int x0, int x1, int y0, int y1, vec pos, ToCenter tc) const;
  59
  60         bool isSubdivided(int x0, int x1, int y0, int y1, vec pos) const;
  61
  62         Vertex * vertices;
  63
  64 };
  65
  66 #endif // SHADY_TERRAIN_HPP