2 Copyright (C) 2003, 2010 - Wolfire Games
3 Copyright (C) 2010-2016 - Lugaru contributors (see AUTHORS file)
5 This file is part of Lugaru.
7 Lugaru is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 Lugaru is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with Lugaru. If not, see <http://www.gnu.org/licenses/>.
28 #include "Quaternions.h"
29 #include "Quaternions.h"
32 #define max_terrain_size 256
33 #define curr_terrain_size size
34 #define subdivision 64
35 #define max_patch_elements (max_terrain_size/subdivision)*(max_terrain_size/subdivision)*54
41 #define max_decals 1000
44 #define footprintdecal 1
46 #define blooddecalfast 3
47 #define shadowdecalpermanent 4
49 #define blooddecalslow 6
50 #define bodyprintdecal 7
52 #define snowyenvironment 0
53 #define grassyenvironment 1
54 #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 getOpacity(float pointx, float pointz);
114 XYZ getLighting(float pointx, float pointz);
115 XYZ getNormal(float pointx, float pointz);
116 void UpdateVertexArray(int whichx, int whichy);
117 void UpdateTransparency(int whichx, int whichy);
118 void UpdateTransparencyother(int whichx, int whichy);
119 void UpdateTransparencyotherother(int whichx, int whichy);
120 bool load(const char *fileName);
121 void CalculateNormals();
123 void draw(int layer);
124 void drawpatch(int whichx, int whichy, float opacity);
125 void drawpatchother(int whichx, int whichy, float opacity);
126 void drawpatchotherother(int whichx, int whichy, float opacity);