base/main.cc

   1 /*
   2 This file is part of I am car.
   3
   4 I am car is nree software: you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License as published by
   6 the Free Software Foundation, either version 3 of the License, or
   7 (at your option) any later version.
   8
   9 I am car 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
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with I am car. If not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18 #include <algorithm>
  19 #include <iostream>
  20 #include <jsoncpp/json/json.h>
  21 #include <signal.h>
  22 #include "compile.h"
  23 #include "obstacle.h"
  24 #include "rrtplanner.h"
  25 // OpenGL
  26 #include <GL/gl.h>
  27 #include <GL/glu.h>
  28 #include <SDL2/SDL.h>
  29
  30 #define USE_GL
  31 #define USE_INTERRUPT
  32 #define USE_TMAX
  33 #define USE_TMAX_1ST_CUSPS
  34
  35 bool run_planner = true;
  36
  37 SDL_Window* gw = NULL;
  38 SDL_GLContext gc;
  39
  40 bool init();
  41 bool initGL();
  42
  43 void hint(int)
  44 {
  45         run_planner = false;
  46 }
  47
  48 int main()
  49 {
  50 #ifdef USE_GL
  51         init();
  52 #endif
  53
  54         Json::Value jvi; // JSON input
  55         Json::Value jvo; // JSON output
  56         unsigned int i = 0;
  57         unsigned int j = 0;
  58         std::cin >> jvi;
  59         std::string encoding = jvi.get("encoding", "UTF-8" ).asString();
  60
  61         PLANNER p(
  62                         new RRTNode(
  63                                 jvi["init"][0].asFloat(),
  64                                 jvi["init"][1].asFloat(),
  65                                 jvi["init"][2].asFloat()),
  66                         new RRTNode(
  67                                 jvi["goal"][0].asFloat(),
  68                                 jvi["goal"][1].asFloat(),
  69                                 jvi["goal"][2].asFloat()));
  70         std::vector<CircleObstacle> co;
  71         std::vector<SegmentObstacle> so;
  72         for (auto o: jvi["obst"]) {
  73                 if (o["circle"] != Json::nullValue) {
  74                         co.push_back(CircleObstacle(
  75                                                 o["circle"][0].asFloat(),
  76                                                 o["circle"][1].asFloat(),
  77                                                 o["circle"][2].asFloat()));
  78                 }
  79                 if (o["segment"] != Json::nullValue) {
  80                         so.push_back(SegmentObstacle(
  81                                 new RRTNode(
  82                                         o["segment"][0][0].asFloat(),
  83                                         o["segment"][0][1].asFloat(),
  84                                         0),
  85                                 new RRTNode(
  86                                         o["segment"][1][0].asFloat(),
  87                                         o["segment"][1][1].asFloat(),
  88                                         0)));
  89                 }
  90         }
  91         p.link_obstacles(&co, &so);
  92         p.ocost(p.root());
  93         p.ocost(p.goal());
  94
  95         RRTNode *nn;
  96         std::vector<RRTNode *> tr;
  97
  98 #ifdef USE_INTERRUPT
  99         signal(SIGINT, hint);
 100         signal(SIGTERM, hint);
 101         p.tstart();
 102         while (run_planner) {
 103                 p.next();
 104                 p.tend();
 105                 while (p.opt_path())
 106                         p.tlog(p.findt());
 107 #ifdef USE_GL
 108                 p.glplot();
 109 #endif
 110         }
 111         if (!p.goal_found()) {
 112 #if NNVERSION > 1
 113                 nn = p.nn(p.iy_, p.goal(), p.cost);
 114 #else
 115                 nn = p.nn(p.nodes(), p.goal(), p.cost);
 116 #endif
 117                 tr = p.findt(nn);
 118                 p.tlog(tr);
 119                 while (p.opt_path())
 120                         p.tlog(p.findt(nn));
 121         }
 122 #if JSONLOGEDGES > 0
 123         p.logr(p.root());
 124 #endif
 125 #elif defined USE_TMAX // USE TMAX
 126         p.tstart();
 127         p.tend();
 128         while (!p.goal_found() && p.elapsed() < TMAX) {
 129                 p.next();
 130                 p.tend();
 131                 while (p.opt_path())
 132                         p.tlog(p.findt());
 133         }
 134 #if JSONLOGEDGES > 0
 135         p.logr(p.root());
 136 #endif
 137 #else // NOT USE_INTERRUPT
 138         i = 0;
 139         while (!p.goal_found() && i < 20) {
 140                 p.tstart();
 141                 p.tend();
 142                 while (p.elapsed() < TMAX) {
 143                         p.next();
 144                         p.tend();
 145                 }
 146                 if (!p.goal_found()) {
 147 #if NNVERSION > 1
 148                         nn = p.nn(p.iy_, p.goal(), p.cost);
 149 #else
 150                         nn = p.nn(p.nodes(), p.goal(), p.cost);
 151 #endif
 152                         tr = p.findt(nn);
 153                 } else {
 154                         nn = p.goal();
 155                         tr = p.findt();
 156                 }
 157                 p.tlog(tr);
 158 #if JSONLOGEDGES > 0
 159                 p.logr(p.root());
 160 #endif
 161                 while (p.opt_path())
 162                         p.tlog(p.findt(nn));
 163                 if (!p.goal_found()) {
 164                         nn = p.tlog().back().back();
 165                         for (j = p.tlog().back().size() - 1; j > 0; j--) {
 166                                 float s1 = p.tlog().back()[j]->s();
 167                                 float s2 = p.tlog().back()[j - 1]->s();
 168                                 if (sgn(s1) != sgn(s2)) {
 169                                         nn = p.tlog().back()[j - 1];
 170                                         break;
 171                                 }
 172                         }
 173                         p.tlog(p.findt(nn));
 174                         p.rebase(nn);
 175                 }
 176                 i++;
 177         }
 178         std::cerr << "#iterations is " << i << std::endl;
 179 #endif // USE_INTERRUPT
 180
 181         std::cerr << "Elapsed is " << p.elapsed() << std::endl;
 182         std::cerr << "Goal found is " << p.goal_found() << std::endl;
 183         std::cerr << "#nodes is " << p.nodes().size() << std::endl;
 184         std::cerr << "#samples is " << p.samples().size() << std::endl;
 185         std::cerr << "`tlog` size is " << p.tlog().size() << std::endl;
 186         std::cerr << "trajectories costs:" << std::endl;
 187         for (j = 0; j < p.clog().size(); j++)
 188                 std::cerr << "- " << p.clog()[j] << std::endl;
 189         std::cerr << "RRT #nodes:" << std::endl;
 190         for (j = 0; j < p.nlog().size(); j++)
 191                 std::cerr << "- " << p.nlog()[j] << std::endl;
 192         std::cerr << "trajectories seconds:" << std::endl;
 193         for (j = 0; j < p.slog().size(); j++)
 194                 std::cerr << "- " << p.slog()[j] << std::endl;
 195         std::cerr << "RRT edges (from root) log size: " << p.rlog().size();
 196         std::cerr << std::endl;
 197         for (auto edges: p.rlog())
 198                 std::cerr << "- " << edges.size() << std::endl;
 199
 200         // JSON output
 201         jvo["elap"] = p.elapsed();
 202         // log cost
 203         for (j = 0; j < p.clog().size(); j++)
 204                 jvo["cost"][j] = p.clog()[j];
 205         // log #nodes
 206         for (j = 0; j < p.nlog().size(); j++)
 207                 jvo["node"][j] = p.nlog()[j];
 208         // log seconds
 209         for (j = 0; j < p.slog().size(); j++)
 210                 jvo["secs"][j] = p.slog()[j];
 211         // log traj
 212         i = 0;
 213         j = 0;
 214         for (auto traj: p.tlog()) {
 215                 i = 0;
 216                 for (auto n: traj) {
 217                         jvo["traj"][j][i][0] = n->x();
 218                         jvo["traj"][j][i][1] = n->y();
 219                         jvo["traj"][j][i][2] = n->h();
 220                         jvo["traj"][j][i][3] = n->t();
 221                         jvo["traj"][j][i][4] = n->s();
 222                         i++;
 223                 }
 224                 j++;
 225         }
 226 #if JSONLOGEDGES > 0
 227         // log edges
 228         i = 0;
 229         j = 0;
 230         for (auto edges: p.rlog()) {
 231                 j = 0;
 232                 for (auto e: edges) {
 233                         jvo["edge"][i][j][0][0] = e->init()->x();
 234                         jvo["edge"][i][j][0][1] = e->init()->y();
 235                         jvo["edge"][i][j][0][2] = e->init()->h();
 236                         jvo["edge"][i][j][1][0] = e->goal()->x();
 237                         jvo["edge"][i][j][1][1] = e->goal()->y();
 238                         jvo["edge"][i][j][1][2] = e->goal()->h();
 239                         j++;
 240                 }
 241                 i++;
 242         }
 243 #endif
 244 #if JSONLOGSAMPLES > 0
 245         // log samples
 246         i = 0;
 247         j = 0;
 248         for (auto s: p.samples()) {
 249                 jvo["samp"][j][0] = s->x();
 250                 jvo["samp"][j][1] = s->y();
 251                 jvo["samp"][j][2] = s->h();
 252                 j++;
 253         }
 254 #endif
 255         // print output
 256         std::cout << jvo << std::endl;
 257
 258 #ifdef USE_GL
 259         SDL_DestroyWindow(gw);
 260         SDL_Quit();
 261 #endif
 262
 263         // free mem
 264         for (auto o: so) {
 265                 delete o.init();
 266                 delete o.goal();
 267         }
 268         return 0;
 269 }
 270
 271 bool init()
 272 {
 273         if (SDL_Init(SDL_INIT_VIDEO) < 0) {
 274                 std::cerr << "SDL could not initialize! SDL_Error: ";
 275                 std::cerr << SDL_GetError();
 276                 std::cerr << std::endl;
 277                 return false;
 278         }
 279         SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
 280         SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
 281         gw = SDL_CreateWindow(
 282                         "I am car",
 283                         SDL_WINDOWPOS_UNDEFINED,
 284                         SDL_WINDOWPOS_UNDEFINED,
 285                         SCREEN_WIDTH,
 286                         SCREEN_HEIGHT,
 287                         SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);
 288         if (gw == NULL) {
 289                 std::cerr << "Window could not be created! SDL_Error: ";
 290                 std::cerr << SDL_GetError();
 291                 std::cerr << std::endl;
 292                 return false;
 293         }
 294         gc = SDL_GL_CreateContext(gw);
 295         if (gc == NULL) {
 296                 std::cerr << "OpenGL context couldn't be created! SDL Error: ";
 297                 std::cerr << SDL_GetError();
 298                 std::cerr << std::endl;
 299                 return false;
 300         }
 301         if (SDL_GL_SetSwapInterval(1) < 0) {
 302                 std::cerr << "Warning: Unable to set VSync! SDL Error: ";
 303                 std::cerr << SDL_GetError();
 304                 std::cerr << std::endl;
 305                 return false;
 306         }
 307         if (!initGL()) {
 308                 std::cerr << "Unable to initialize OpenGL!";
 309                 std::cerr << std::endl;
 310                 return false;
 311         }
 312         return true;
 313 }
 314
 315 bool initGL()
 316 {
 317         GLenum error = GL_NO_ERROR;
 318         glMatrixMode(GL_PROJECTION);
 319         glLoadIdentity();
 320         error = glGetError();
 321         if (error != GL_NO_ERROR) {
 322                 std::cerr << "Error initializing OpenGL! ";
 323                 std::cerr << gluErrorString(error);
 324                 std::cerr << std::endl;
 325                 return false;
 326         }
 327         glMatrixMode(GL_MODELVIEW);
 328         glLoadIdentity();
 329         error = glGetError();
 330         if (error != GL_NO_ERROR) {
 331                 std::cerr << "Error initializing OpenGL! ";
 332                 std::cerr << gluErrorString(error);
 333                 std::cerr << std::endl;
 334                 return false;
 335         }
 336         glClearColor(1, 1, 1, 1);
 337         error = glGetError();
 338         if (error != GL_NO_ERROR) {
 339                 std::cerr << "Error initializing OpenGL! ";
 340                 std::cerr << gluErrorString(error);
 341                 std::cerr << std::endl;
 342                 return false;
 343         }
 344         return true;
 345 }