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/>.
21 #include "Graphic/Decal.hpp"
23 #include "Environment/Terrain.hpp"
24 #include "Graphic/Models.hpp"
36 Decal::Decal(XYZ _position, decal_type _type, float _opacity, float _rotation, float _brightness, int whichx, int whichy, float size, const Terrain& terrain, bool first)
42 , brightness(_brightness)
45 placex = (float)whichx * terrain.scale + terrain.scale;
46 placez = (float)whichy * terrain.scale;
48 texcoords[0][0] = (placex - position.x) / size / 2 + .5;
49 texcoords[0][1] = (placez - position.z) / size / 2 + .5;
53 vertex[0].y = terrain.heightmap[whichx + 1][whichy] * terrain.scale + .01;
56 placex = (float)whichx * terrain.scale + terrain.scale;
57 placez = (float)whichy * terrain.scale + terrain.scale;
59 placex = (float)whichx * terrain.scale;
60 placez = (float)whichy * terrain.scale;
63 texcoords[1][0] = (placex - position.x) / size / 2 + .5;
64 texcoords[1][1] = (placez - position.z) / size / 2 + .5;
69 vertex[1].y = terrain.heightmap[whichx + 1][whichy + 1] * terrain.scale + .01;
71 vertex[1].y = terrain.heightmap[whichx][whichy] * terrain.scale + .01;
74 placex = (float)whichx * terrain.scale;
75 placez = (float)whichy * terrain.scale + terrain.scale;
77 texcoords[2][0] = (placex - position.x) / size / 2 + .5;
78 texcoords[2][1] = (placez - position.z) / size / 2 + .5;
82 vertex[2].y = terrain.heightmap[whichx][whichy + 1] * terrain.scale + .01;
86 for (int i = 0; i < 3; i++) {
88 rot.x = texcoords[i][0] - .5;
89 rot.z = texcoords[i][1] - .5;
90 rot = DoRotation(rot, 0, -rotation, 0);
91 texcoords[i][0] = rot.x + .5;
92 texcoords[i][1] = rot.z + .5;
97 Decal::Decal(XYZ _position, decal_type _type, float _opacity, float _rotation, float size, const Model& model, int i, int which)
101 , rotation(_rotation)
105 float placex, placez;
107 placex = model.getTriangleVertex(i, 0).x;
108 placez = model.getTriangleVertex(i, 0).z;
110 texcoords[0][0] = (placex - position.x) / (size) / 2 + .5;
111 texcoords[0][1] = (placez - position.z) / (size) / 2 + .5;
113 vertex[0].x = placex;
114 vertex[0].z = placez;
115 vertex[0].y = model.getTriangleVertex(i, 0).y;
117 placex = model.getTriangleVertex(i, 1).x;
118 placez = model.getTriangleVertex(i, 1).z;
120 texcoords[1][0] = (placex - position.x) / (size) / 2 + .5;
121 texcoords[1][1] = (placez - position.z) / (size) / 2 + .5;
123 vertex[1].x = placex;
124 vertex[1].z = placez;
125 vertex[1].y = model.getTriangleVertex(i, 1).y;
127 placex = model.getTriangleVertex(i, 2).x;
128 placez = model.getTriangleVertex(i, 2).z;
130 texcoords[2][0] = (placex - position.x) / (size) / 2 + .5;
131 texcoords[2][1] = (placez - position.z) / (size) / 2 + .5;
133 vertex[2].x = placex;
134 vertex[2].z = placez;
135 vertex[2].y = model.getTriangleVertex(i, 2).y;
136 } else if (which == 1) {
137 placex = model.getTriangleVertex(i, 0).y;
138 placez = model.getTriangleVertex(i, 0).z;
140 texcoords[0][0] = (placex - position.y) / (size) / 2 + .5;
141 texcoords[0][1] = (placez - position.z) / (size) / 2 + .5;
143 vertex[0].x = model.getTriangleVertex(i, 0).x;
144 vertex[0].z = placez;
145 vertex[0].y = placex;
147 placex = model.getTriangleVertex(i, 1).y;
148 placez = model.getTriangleVertex(i, 1).z;
150 texcoords[1][0] = (placex - position.y) / (size) / 2 + .5;
151 texcoords[1][1] = (placez - position.z) / (size) / 2 + .5;
153 vertex[1].x = model.getTriangleVertex(i, 1).x;
154 vertex[1].z = placez;
155 vertex[1].y = placex;
157 placex = model.getTriangleVertex(i, 2).y;
158 placez = model.getTriangleVertex(i, 2).z;
160 texcoords[2][0] = (placex - position.y) / (size) / 2 + .5;
161 texcoords[2][1] = (placez - position.z) / (size) / 2 + .5;
163 vertex[2].x = model.getTriangleVertex(i, 2).x;
164 vertex[2].z = placez;
165 vertex[2].y = placex;
167 placex = model.getTriangleVertex(i, 0).x;
168 placez = model.getTriangleVertex(i, 0).y;
170 texcoords[0][0] = (placex - position.x) / (size) / 2 + .5;
171 texcoords[0][1] = (placez - position.y) / (size) / 2 + .5;
173 vertex[0].x = placex;
174 vertex[0].z = model.getTriangleVertex(i, 0).z;
175 vertex[0].y = placez;
177 placex = model.getTriangleVertex(i, 1).x;
178 placez = model.getTriangleVertex(i, 1).y;
180 texcoords[1][0] = (placex - position.x) / (size) / 2 + .5;
181 texcoords[1][1] = (placez - position.y) / (size) / 2 + .5;
183 vertex[1].x = placex;
184 vertex[1].z = model.getTriangleVertex(i, 1).z;
185 vertex[1].y = placez;
187 placex = model.getTriangleVertex(i, 2).x;
188 placez = model.getTriangleVertex(i, 2).y;
190 texcoords[2][0] = (placex - position.x) / (size) / 2 + .5;
191 texcoords[2][1] = (placez - position.y) / (size) / 2 + .5;
193 vertex[2].x = placex;
194 vertex[2].z = model.getTriangleVertex(i, 2).z;
195 vertex[2].y = placez;