--- /dev/null
+/*
+Copyright (C) 2003, 2010 - Wolfire Games
+Copyright (C) 2010-2016 - Lugaru contributors (see AUTHORS file)
+
+This file is part of Lugaru.
+
+Lugaru is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+Lugaru is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Lugaru. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "Graphic/Decal.hpp"
+
+#include "Environment/Terrain.hpp"
+
+Decal::Decal() :
+ position(),
+ type(0),
+ opacity(0),
+ rotation(0),
+ alivetime(0),
+ brightness(0)
+{
+}
+
+Decal::Decal(XYZ _position, int _type, float _opacity, float _rotation, float _brightness, int whichx, int whichy, float size, const Terrain& terrain, bool first) :
+ position(_position),
+ type(_type),
+ opacity(_opacity),
+ rotation(_rotation),
+ alivetime(0),
+ brightness(_brightness)
+{
+ float placex, placez;
+ placex = (float)whichx * terrain.scale + terrain.scale;
+ placez = (float)whichy * terrain.scale;
+
+ texcoords[0][0] = (placex - position.x) / size / 2 + .5;
+ texcoords[0][1] = (placez - position.z) / size / 2 + .5;
+
+ vertex[0].x = placex;
+ vertex[0].z = placez;
+ vertex[0].y = terrain.heightmap[whichx + 1][whichy] * terrain.scale + .01;
+
+ if (first) {
+ placex = (float)whichx * terrain.scale + terrain.scale;
+ placez = (float)whichy * terrain.scale + terrain.scale;
+ } else {
+ placex = (float)whichx * terrain.scale;
+ placez = (float)whichy * terrain.scale;
+ }
+
+ texcoords[1][0] = (placex - position.x) / size / 2 + .5;
+ texcoords[1][1] = (placez - position.z) / size / 2 + .5;
+
+ vertex[1].x = placex;
+ vertex[1].z = placez;
+ if (first) {
+ vertex[1].y = terrain.heightmap[whichx + 1][whichy + 1] * terrain.scale + .01;
+ } else {
+ vertex[1].y = terrain.heightmap[whichx][whichy] * terrain.scale + .01;
+ }
+
+
+ placex = (float)whichx * terrain.scale;
+ placez = (float)whichy * terrain.scale + terrain.scale;
+
+ texcoords[2][0] = (placex - position.x) / size / 2 + .5;
+ texcoords[2][1] = (placez - position.z) / size / 2 + .5;
+
+ vertex[2].x = placex;
+ vertex[2].z = placez;
+ vertex[2].y = terrain.heightmap[whichx][whichy + 1] * terrain.scale + .01;
+
+ XYZ rot;
+ if (rotation) {
+ for (int i = 0; i < 3; i++) {
+ rot.y = 0;
+ rot.x = texcoords[i][0] - .5;
+ rot.z = texcoords[i][1] - .5;
+ rot = DoRotation(rot, 0, -rotation, 0);
+ texcoords[i][0] = rot.x + .5;
+ texcoords[i][1] = rot.z + .5;
+ }
+ }
+}