1 /* Goom Project
2 * Copyright (C) <2003> iOS-Software
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19 #include "v3d.h"
20
21 void
v3d_to_v2d(v3d * v3,int nbvertex,int width,int height,float distance,v2d * v2)22 v3d_to_v2d (v3d * v3, int nbvertex, int width, int height, float distance,
23 v2d * v2)
24 {
25 int i;
26
27 for (i = 0; i < nbvertex; ++i) {
28 if (v3[i].z > 2) {
29 int Xp, Yp;
30
31 F2I ((distance * v3[i].x / v3[i].z), Xp);
32 F2I ((distance * v3[i].y / v3[i].z), Yp);
33 v2[i].x = Xp + (width >> 1);
34 v2[i].y = -Yp + (height >> 1);
35 } else
36 v2[i].x = v2[i].y = -666;
37 }
38 }
39