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authordan miller2007-10-19 05:20:07 +0000
committerdan miller2007-10-19 05:20:07 +0000
commitfca74b0bf0a0833f5701e9c0de7b3bc15b2233dd (patch)
tree51bcae7a1b8381a6bf6fd8025a7de1e30fe0045d /libraries/ode-0.9/drawstuff/dstest/dstest.cpp
parentresubmitting ode (diff)
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diff --git a/libraries/ode-0.9/drawstuff/dstest/dstest.cpp b/libraries/ode-0.9/drawstuff/dstest/dstest.cpp
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1/*************************************************************************
2 * *
3 * Open Dynamics Engine, Copyright (C) 2001,2002 Russell L. Smith. *
4 * All rights reserved. Email: russ@q12.org Web: www.q12.org *
5 * *
6 * This library is free software; you can redistribute it and/or *
7 * modify it under the terms of EITHER: *
8 * (1) The GNU Lesser General Public License as published by the Free *
9 * Software Foundation; either version 2.1 of the License, or (at *
10 * your option) any later version. The text of the GNU Lesser *
11 * General Public License is included with this library in the *
12 * file LICENSE.TXT. *
13 * (2) The BSD-style license that is included with this library in *
14 * the file LICENSE-BSD.TXT. *
15 * *
16 * This library is distributed in the hope that it will be useful, *
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files *
19 * LICENSE.TXT and LICENSE-BSD.TXT for more details. *
20 * *
21 *************************************************************************/
22
23#include <stdio.h>
24#include <math.h>
25#include <drawstuff/drawstuff.h>
26
27
28#ifndef M_PI
29#define M_PI (3.14159265358979323846)
30#endif
31
32
33void start()
34{
35 // adjust the starting viewpoint a bit
36 float xyz[3],hpr[3];
37 dsGetViewpoint (xyz,hpr);
38 hpr[0] += 7;
39 dsSetViewpoint (xyz,hpr);
40}
41
42
43void simLoop (int pause)
44{
45 float pos[3];
46 float R[12];
47 static float a = 0;
48
49 if (!pause) a += 0.02f;
50 if (a > (2*M_PI)) a -= (float) (2*M_PI);
51 float ca = (float) cos(a);
52 float sa = (float) sin(a);
53
54 dsSetTexture (DS_WOOD);
55
56 float b = (a > M_PI) ? (2*(a-(float)M_PI)) : a*2;
57 pos[0] = -0.3f;
58 pos[1] = 0;
59 pos[2] = (float) (0.1f*(2*M_PI*b - b*b) + 0.65f);
60 R[0] = ca; R[1] = 0; R[2] = -sa;
61 R[4] = 0; R[5] = 1; R[6] = 0;
62 R[8] = sa; R[9] = 0; R[10] = ca;
63 dsSetColor (1,0.8f,0.6f);
64 dsDrawSphere (pos,R,0.3f);
65
66 dsSetTexture (DS_NONE);
67
68 pos[0] = -0.2f;
69 pos[1] = 0.8f;
70 pos[2] = 0.4f;
71 R[0] = ca; R[1] = -sa; R[2] = 0;
72 R[4] = sa; R[5] = ca; R[6] = 0;
73 R[8] = 0; R[9] = 0; R[10] = 1;
74 float sides[3] = {0.1f,0.4f,0.8f};
75 dsSetColor (0.6f,0.6f,1);
76 dsDrawBox (pos,R,sides);
77
78 dsSetTexture (DS_WOOD);
79
80 float r = 0.3f; // cylinder radius
81 float d = (float)cos(a*2) * 0.4f;
82 float cd = (float)cos(-d/r);
83 float sd = (float)sin(-d/r);
84 pos[0] = -0.2f;
85 pos[1] = -1 + d;
86 pos[2] = 0.3f;
87 R[0] = 0; R[1] = 0; R[2] = -1;
88 R[4] = -sd; R[5] = cd; R[6] = 0;
89 R[8] = cd; R[9] = sd; R[10] = 0;
90 dsSetColor (0.4f,1,1);
91 dsDrawCylinder (pos,R,0.8f,r);
92
93 pos[0] = 0;
94 pos[1] = 0;
95 pos[2] = 0.2f;
96 R[0] = 0; R[1] = sa; R[2] = -ca;
97 R[4] = 0; R[5] = ca; R[6] = sa;
98 R[8] = 1; R[9] = 0; R[10] = 0;
99 dsSetColor (1,0.9f,0.2f);
100 dsDrawCappedCylinder (pos,R,0.8f,0.2f);
101}
102
103
104void command (int cmd)
105{
106 dsPrint ("received command %d (`%c')\n",cmd,cmd);
107}
108
109
110int main (int argc, char **argv)
111{
112 // setup pointers to callback functions
113 dsFunctions fn;
114 fn.version = DS_VERSION;
115 fn.start = &start;
116 fn.step = &simLoop;
117 fn.command = command;
118 fn.stop = 0;
119 fn.path_to_textures = 0; // uses default
120
121 // run simulation
122 dsSimulationLoop (argc,argv,400,400,&fn);
123
124 return 0;
125}