Source/Terrain.h

   1 /*
   2 Copyright (C) 2003, 2010 - Wolfire Games
   3
   4 This file is part of Lugaru.
   5
   6 Lugaru is free software; you can redistribute it and/or
   7 modify it under the terms of the GNU General Public License
   8 as published by the Free Software Foundation; either version 2
   9 of the License, or (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  14
  15 See the GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20 */
  21
  22 #ifndef _TERRAIN_H_
  23 #define _TERRAIN_H_
  24
  25 #include "gamegl.h"
  26 #include "Frustum.h"
  27 #include "Lights.h"
  28 #include "TGALoader.h"
  29 #include "Quaternions.h"
  30 #include "Quaternions.h"
  31 #include "Texture.h"
  32
  33 #define max_terrain_size                        256
  34 #define curr_terrain_size                       size
  35 #define subdivision                             64
  36 #define max_patch_elements                      (max_terrain_size/subdivision)*(max_terrain_size/subdivision)*54
  37
  38 #define allfirst 0
  39 #define mixed 1
  40 #define allsecond 2
  41
  42 #define max_decals 1000
  43
  44 #define shadowdecal 0
  45 #define footprintdecal 1
  46 #define blooddecal 2
  47 #define blooddecalfast 3
  48 #define shadowdecalpermanent 4
  49 #define breakdecal 5
  50 #define blooddecalslow 6
  51 #define bodyprintdecal 7
  52
  53 #define snowyenvironment 0
  54 #define grassyenvironment 1
  55 #define desertenvironment 2
  56 //
  57 // Model Structures
  58 //
  59
  60 class Terrain{
  61 public:
  62         Texture bloodtexture;
  63         Texture bloodtexture2;
  64         Texture shadowtexture;
  65         Texture footprinttexture;
  66         Texture bodyprinttexture;
  67         Texture breaktexture;
  68         Texture terraintexture;
  69         short   size;
  70
  71         int patchobjectnum[subdivision][subdivision];
  72         int patchobjects[subdivision][subdivision][300];
  73
  74         float scale;
  75         int type;
  76         float heightmap[max_terrain_size+1][max_terrain_size+1];
  77         XYZ normals[max_terrain_size][max_terrain_size];
  78         XYZ facenormals[max_terrain_size][max_terrain_size];
  79         XYZ triangles[(max_terrain_size-1)*(max_terrain_size-1)*2][3];
  80         float colors[max_terrain_size][max_terrain_size][4];
  81         float opacityother[max_terrain_size][max_terrain_size];
  82         float texoffsetx[max_terrain_size][max_terrain_size];
  83         float texoffsety[max_terrain_size][max_terrain_size];
  84         int numtris[subdivision][subdivision];
  85         int textureness[subdivision][subdivision];
  86
  87         GLfloat vArray[(max_patch_elements)*subdivision*subdivision];
  88
  89         bool visible[subdivision][subdivision];
  90         float avgypatch[subdivision][subdivision];
  91         float maxypatch[subdivision][subdivision];
  92         float minypatch[subdivision][subdivision];
  93         float heightypatch[subdivision][subdivision];
  94
  95         int patch_elements;
  96
  97         float decaltexcoords[max_decals][3][2];
  98         XYZ decalvertex[max_decals][3];
  99         int decaltype[max_decals];
 100         float decalopacity[max_decals];
 101         float decalrotation[max_decals];
 102         float decalalivetime[max_decals];
 103         float decalbrightness[max_decals];
 104         XYZ decalposition[max_decals];
 105         int numdecals;
 106
 107         void AddObject(XYZ where, float radius,int id);
 108         void DeleteDecal(int which);
 109         void MakeDecal(int type, XYZ where, float size, float opacity, float rotation);
 110         void MakeDecalLock(int type, XYZ where, int whichx, int whichy, float size, float opacity, float rotation);
 111         int lineTerrain(XYZ p1,XYZ p2, XYZ *p);
 112         float getHeight(float pointx, float pointz);
 113         float getHeightExtrude(float pointx, float pointz,float point2x, float point2z);
 114         float getOpacity(float pointx, float pointz);
 115         XYZ getLighting(float pointx, float pointz);
 116         XYZ getNormal(float pointx, float pointz);
 117         void UpdateVertexArray(int whichx, int whichy);
 118         void UpdateTransparency(int whichx, int whichy);
 119         void UpdateTransparencyother(int whichx, int whichy);
 120         void UpdateTransparencyotherother(int whichx, int whichy);
 121         bool load(const char *fileName);
 122         void CalculateNormals();
 123         void drawdecals();
 124         void draw(int layer);
 125         void drawpatch(int whichx, int whichy, float opacity);
 126         void drawpatchother(int whichx, int whichy, float opacity);
 127         void drawpatchotherother(int whichx, int whichy, float opacity);
 128         void DoLighting();
 129         void DoShadows();
 130
 131         Terrain();
 132         ~Terrain();
 133 };
 134
 135 #endif