2 Copyright (C) 2003, 2010 - Wolfire Games
4 This file is part of Lugaru.
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.
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.
15 See the GNU General Public License for more details.
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.
28 #include "TGALoader.h"
29 #include "Quaternions.h"
30 #include "Quaternions.h"
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
42 #define max_decals 1000
45 #define footprintdecal 1
47 #define blooddecalfast 3
48 #define shadowdecalpermanent 4
50 #define blooddecalslow 6
51 #define bodyprintdecal 7
53 #define snowyenvironment 0
54 #define grassyenvironment 1
55 #define desertenvironment 2
63 Texture bloodtexture2;
64 Texture shadowtexture;
65 Texture footprinttexture;
66 Texture bodyprinttexture;
68 Texture terraintexture;
71 int patchobjectnum[subdivision][subdivision];
72 int patchobjects[subdivision][subdivision][300];
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];
87 GLfloat vArray[(max_patch_elements)*subdivision*subdivision];
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];
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];
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();
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);