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Diffstat (limited to 'libraries/ode-0.9/ode/demo/demo_basket.cpp')
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diff --git a/libraries/ode-0.9/ode/demo/demo_basket.cpp b/libraries/ode-0.9/ode/demo/demo_basket.cpp new file mode 100644 index 0000000..35fb49a --- /dev/null +++ b/libraries/ode-0.9/ode/demo/demo_basket.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 | // Basket ball demo. | ||
24 | // Serves as a test for the sphere vs trimesh collider | ||
25 | // By Bram Stolk. | ||
26 | // Press the spacebar to reset the position of the ball. | ||
27 | |||
28 | #include <ode/config.h> | ||
29 | #include <assert.h> | ||
30 | #ifdef HAVE_UNISTD_H | ||
31 | #include <unistd.h> | ||
32 | #endif | ||
33 | #include <ode/ode.h> | ||
34 | #include <drawstuff/drawstuff.h> | ||
35 | |||
36 | #include "basket_geom.h" // this is our world mesh | ||
37 | |||
38 | #ifdef _MSC_VER | ||
39 | #pragma warning(disable:4244 4305) // for VC++, no precision loss complaints | ||
40 | #endif | ||
41 | |||
42 | // some constants | ||
43 | |||
44 | #define RADIUS 0.14 | ||
45 | |||
46 | // dynamics and collision objects (chassis, 3 wheels, environment) | ||
47 | |||
48 | static dWorldID world; | ||
49 | static dSpaceID space; | ||
50 | |||
51 | static dBodyID sphbody; | ||
52 | static dGeomID sphgeom; | ||
53 | |||
54 | static dJointGroupID contactgroup; | ||
55 | static dGeomID world_mesh; | ||
56 | |||
57 | |||
58 | // this is called by dSpaceCollide when two objects in space are | ||
59 | // potentially colliding. | ||
60 | |||
61 | static void nearCallback (void *data, dGeomID o1, dGeomID o2) | ||
62 | { | ||
63 | assert(o1); | ||
64 | assert(o2); | ||
65 | |||
66 | if (dGeomIsSpace(o1) || dGeomIsSpace(o2)) | ||
67 | { | ||
68 | fprintf(stderr,"testing space %p %p\n", o1,o2); | ||
69 | // colliding a space with something | ||
70 | dSpaceCollide2(o1,o2,data,&nearCallback); | ||
71 | // Note we do not want to test intersections within a space, | ||
72 | // only between spaces. | ||
73 | return; | ||
74 | } | ||
75 | |||
76 | // fprintf(stderr,"testing geoms %p %p\n", o1, o2); | ||
77 | |||
78 | const int N = 32; | ||
79 | dContact contact[N]; | ||
80 | int n = dCollide (o1,o2,N,&(contact[0].geom),sizeof(dContact)); | ||
81 | if (n > 0) | ||
82 | { | ||
83 | for (int i=0; i<n; i++) | ||
84 | { | ||
85 | // Paranoia <-- not working for some people, temporarily removed for 0.6 | ||
86 | //dIASSERT(dVALIDVEC3(contact[i].geom.pos)); | ||
87 | //dIASSERT(dVALIDVEC3(contact[i].geom.normal)); | ||
88 | //dIASSERT(!dIsNan(contact[i].geom.depth)); | ||
89 | contact[i].surface.slip1 = 0.7; | ||
90 | contact[i].surface.slip2 = 0.7; | ||
91 | contact[i].surface.mode = dContactSoftERP | dContactSoftCFM | dContactApprox1 | dContactSlip1 | dContactSlip2; | ||
92 | contact[i].surface.mu = 50.0; // was: dInfinity | ||
93 | contact[i].surface.soft_erp = 0.96; | ||
94 | contact[i].surface.soft_cfm = 0.04; | ||
95 | dJointID c = dJointCreateContact (world,contactgroup,&contact[i]); | ||
96 | dJointAttach (c, | ||
97 | dGeomGetBody(contact[i].geom.g1), | ||
98 | dGeomGetBody(contact[i].geom.g2)); | ||
99 | } | ||
100 | } | ||
101 | } | ||
102 | |||
103 | |||
104 | // start simulation - set viewpoint | ||
105 | |||
106 | static void start() | ||
107 | { | ||
108 | static float xyz[3] = {-8,0,5}; | ||
109 | static float hpr[3] = {0.0f,-29.5000f,0.0000f}; | ||
110 | dsSetViewpoint (xyz,hpr); | ||
111 | } | ||
112 | |||
113 | |||
114 | |||
115 | static void reset_ball(void) | ||
116 | { | ||
117 | float sx=0.0f, sy=3.40f, sz=7.05; | ||
118 | |||
119 | #if defined(_MSC_VER) && defined(dDOUBLE) | ||
120 | sy -= 0.01; // Cheat, to make it score under win32/double | ||
121 | #endif | ||
122 | |||
123 | dQuaternion q; | ||
124 | dQSetIdentity(q); | ||
125 | dBodySetPosition (sphbody, sx, sy, sz); | ||
126 | dBodySetQuaternion(sphbody, q); | ||
127 | dBodySetLinearVel (sphbody, 0,0,0); | ||
128 | dBodySetAngularVel (sphbody, 0,0,0); | ||
129 | } | ||
130 | |||
131 | |||
132 | // called when a key pressed | ||
133 | |||
134 | static void command (int cmd) | ||
135 | { | ||
136 | switch (cmd) | ||
137 | { | ||
138 | case ' ': | ||
139 | reset_ball(); | ||
140 | break; | ||
141 | } | ||
142 | } | ||
143 | |||
144 | |||
145 | // simulation loop | ||
146 | |||
147 | static void simLoop (int pause) | ||
148 | { | ||
149 | double simstep = 0.001; // 1ms simulation steps | ||
150 | double dt = dsElapsedTime(); | ||
151 | |||
152 | int nrofsteps = (int) ceilf(dt/simstep); | ||
153 | // fprintf(stderr, "dt=%f, nr of steps = %d\n", dt, nrofsteps); | ||
154 | |||
155 | for (int i=0; i<nrofsteps && !pause; i++) | ||
156 | { | ||
157 | dSpaceCollide (space,0,&nearCallback); | ||
158 | dWorldQuickStep (world, simstep); | ||
159 | dJointGroupEmpty (contactgroup); | ||
160 | } | ||
161 | |||
162 | dsSetColor (1,1,1); | ||
163 | const dReal *SPos = dBodyGetPosition(sphbody); | ||
164 | const dReal *SRot = dBodyGetRotation(sphbody); | ||
165 | float spos[3] = {SPos[0], SPos[1], SPos[2]}; | ||
166 | float srot[12] = { SRot[0], SRot[1], SRot[2], SRot[3], SRot[4], SRot[5], SRot[6], SRot[7], SRot[8], SRot[9], SRot[10], SRot[11] }; | ||
167 | dsDrawSphere | ||
168 | ( | ||
169 | spos, | ||
170 | srot, | ||
171 | RADIUS | ||
172 | ); | ||
173 | |||
174 | // draw world trimesh | ||
175 | dsSetColor(0.4,0.7,0.9); | ||
176 | dsSetTexture (DS_NONE); | ||
177 | |||
178 | const dReal* Pos = dGeomGetPosition(world_mesh); | ||
179 | //dIASSERT(dVALIDVEC3(Pos)); | ||
180 | float pos[3] = { Pos[0], Pos[1], Pos[2] }; | ||
181 | |||
182 | const dReal* Rot = dGeomGetRotation(world_mesh); | ||
183 | //dIASSERT(dVALIDMAT3(Rot)); | ||
184 | float rot[12] = { Rot[0], Rot[1], Rot[2], Rot[3], Rot[4], Rot[5], Rot[6], Rot[7], Rot[8], Rot[9], Rot[10], Rot[11] }; | ||
185 | |||
186 | int numi = sizeof(world_indices) / sizeof(int); | ||
187 | |||
188 | for (int i=0; i<numi/3; i++) | ||
189 | { | ||
190 | int i0 = world_indices[i*3+0]; | ||
191 | int i1 = world_indices[i*3+1]; | ||
192 | int i2 = world_indices[i*3+2]; | ||
193 | float *v0 = world_vertices+i0*3; | ||
194 | float *v1 = world_vertices+i1*3; | ||
195 | float *v2 = world_vertices+i2*3; | ||
196 | dsDrawTriangle(pos, rot, v0,v1,v2, true); // single precision draw | ||
197 | } | ||
198 | } | ||
199 | |||
200 | |||
201 | int main (int argc, char **argv) | ||
202 | { | ||
203 | dMass m; | ||
204 | dMatrix3 R; | ||
205 | |||
206 | // setup pointers to drawstuff callback functions | ||
207 | dsFunctions fn; | ||
208 | fn.version = DS_VERSION; | ||
209 | fn.start = &start; | ||
210 | fn.step = &simLoop; | ||
211 | fn.command = &command; | ||
212 | fn.stop = 0; | ||
213 | fn.path_to_textures = "../../drawstuff/textures"; | ||
214 | if(argc==2) | ||
215 | fn.path_to_textures = argv[1]; | ||
216 | |||
217 | // create world | ||
218 | dInitODE(); | ||
219 | world = dWorldCreate(); | ||
220 | space = dHashSpaceCreate (0); | ||
221 | |||
222 | contactgroup = dJointGroupCreate (0); | ||
223 | dWorldSetGravity (world,0,0,-9.8); | ||
224 | dWorldSetQuickStepNumIterations (world, 64); | ||
225 | |||
226 | // Create a static world using a triangle mesh that we can collide with. | ||
227 | int numv = sizeof(world_vertices)/(3*sizeof(float)); | ||
228 | int numi = sizeof(world_indices)/ sizeof(int); | ||
229 | printf("numv=%d, numi=%d\n", numv, numi); | ||
230 | dTriMeshDataID Data = dGeomTriMeshDataCreate(); | ||
231 | |||
232 | // fprintf(stderr,"Building Single Precision Mesh\n"); | ||
233 | |||
234 | dGeomTriMeshDataBuildSingle | ||
235 | ( | ||
236 | Data, | ||
237 | world_vertices, | ||
238 | 3 * sizeof(float), | ||
239 | numv, | ||
240 | world_indices, | ||
241 | numi, | ||
242 | 3 * sizeof(int) | ||
243 | ); | ||
244 | |||
245 | world_mesh = dCreateTriMesh(space, Data, 0, 0, 0); | ||
246 | dGeomTriMeshEnableTC(world_mesh, dSphereClass, false); | ||
247 | dGeomTriMeshEnableTC(world_mesh, dBoxClass, false); | ||
248 | dGeomSetPosition(world_mesh, 0, 0, 0.5); | ||
249 | dRSetIdentity(R); | ||
250 | //dIASSERT(dVALIDMAT3(R)); | ||
251 | |||
252 | dGeomSetRotation (world_mesh, R); | ||
253 | |||
254 | float sx=0.0, sy=3.40, sz=6.80; | ||
255 | sphbody = dBodyCreate (world); | ||
256 | dMassSetSphere (&m,1,RADIUS); | ||
257 | dBodySetMass (sphbody,&m); | ||
258 | sphgeom = dCreateSphere(0, RADIUS); | ||
259 | dGeomSetBody (sphgeom,sphbody); | ||
260 | reset_ball(); | ||
261 | dSpaceAdd (space, sphgeom); | ||
262 | |||
263 | // run simulation | ||
264 | dsSimulationLoop (argc,argv,352,288,&fn); | ||
265 | |||
266 | // Causes segm violation? Why? | ||
267 | // (because dWorldDestroy() destroys body connected to geom; must call first!) | ||
268 | dGeomDestroy(sphgeom); | ||
269 | dGeomDestroy (world_mesh); | ||
270 | |||
271 | dJointGroupEmpty (contactgroup); | ||
272 | dJointGroupDestroy (contactgroup); | ||
273 | dSpaceDestroy (space); | ||
274 | dWorldDestroy (world); | ||
275 | dCloseODE(); | ||
276 | return 0; | ||
277 | } | ||
278 | |||