src/Input/fgjs.cxx

   1 // fgjs.cxx -- assign joystick axes to flightgear properties
   2 //
   3 // Written by Tony Peden, started May 2001
   4 //
   5 // Copyright (C) 2001  Tony Peden (apeden@earthlink.net)
   6 //
   7 // This program is free software; you can redistribute it and/or
   8 // modify it under the terms of the GNU General Public License as
   9 // published by the Free Software Foundation; either version 2 of the
  10 // License, or (at your option) any later version.
  11 //
  12 // This program is distributed in the hope that it will be useful, but
  13 // WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 // General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License
  18 // along with this program; if not, write to the Free Software
  19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20
  21 #include <simgear/compiler.h>
  22
  23 #include <math.h>
  24
  25 #include STL_IOSTREAM
  26 #include STL_FSTREAM
  27 #include STL_STRING
  28
  29 #include <jsinput.h>
  30
  31 SG_USING_STD(fstream);
  32 SG_USING_STD(cout);
  33 SG_USING_STD(endl);
  34 SG_USING_STD(ios);
  35 SG_USING_STD(string);
  36
  37 string axes_humannames[8] = { "elevator", "ailerons", "rudder", "throttle",
  38                               "mixture","propller pitch", "lateral view",
  39                               "longitudinal view"
  40                             };
  41
  42 string axes_propnames[8]={ "/controls/flight/elevator","/controls/flight/aileron",
  43                            "/controls/flight/rudder","/controls/engines/engine/throttle",
  44                            "/controls/engines/engine/mixture","/controls/engines/engine/pitch",
  45                            "/sim/views/axes/lat","/sim/views/axes/long"
  46                          };
  47
  48 bool half_range[8]={ false,false,false,true,true,true,false,false };
  49
  50
  51 string button_humannames[6]= { "apply left brake",
  52                                "apply right brake", "step flaps up",
  53                                "step flaps down","apply nose-up trim",
  54                                "apply nose-down trim"
  55                              };
  56
  57 string button_propnames[6]={ "/controls/gear/brake-left",
  58                              "/controls/gear/brake-right",
  59                              "/controls/flight/flaps",
  60                              "/controls/flight/flaps",
  61                              "/controls/flight/elevator-trim",
  62                              "/controls/flight/elevator-trim"
  63                            };
  64
  65
  66 float button_step[6]={ 1.0, 1.0, 0.34, -0.34, 0.001, -0.001 };
  67
  68 string button_repeat[6]={ "false", "false", "false", "false",
  69                           "true", "true" };
  70
  71
  72 void waitForButton(jsSuper *jss, int wait_ms) {
  73       int b,lastb;
  74       float axes[_JS_MAX_AXES];
  75       b=0;
  76       ulMilliSecondSleep(wait_ms);
  77       do {
  78         lastb=b;
  79         do {
  80           jss->getJoystick()->read ( &b, axes ) ;
  81         } while( jss->nextJoystick());
  82
  83         ulMilliSecondSleep(1);
  84
  85       }while( lastb == b );
  86       ulMilliSecondSleep(wait_ms);
  87 }
  88
  89 void writeAxisProperties(fstream &fs, int control,int joystick, int axis) {
  90
  91      char jsDesc[80];
  92      snprintf(jsDesc,80,"--prop:/input/joysticks/js[%d]/axis[%d]/binding",joystick,axis);
  93      fs << jsDesc  << "/command=property-scale" << endl;
  94      fs << jsDesc  << "/property=" << axes_propnames[control] << endl;
  95
  96      fs << jsDesc << "/dead-band=0.02"  << endl;
  97
  98      if( half_range[control] == true) {
  99        fs << jsDesc << "/offset=-1.0" << endl;
 100        fs << jsDesc << "/factor=-0.5" << endl;
 101      } else {
 102        fs << jsDesc << "/offset=0.0" << endl;
 103        fs << jsDesc << "/factor=1.0" << endl;
 104      }
 105      fs << endl;
 106 }
 107
 108 void writeButtonProperties(fstream &fs, int property,int joystick, int button) {
 109
 110      char jsDesc[80];
 111      snprintf(jsDesc,80,"--prop:/input/joysticks/js[%d]/button[%d]/binding",joystick,button);
 112
 113      fs << jsDesc << "/repeatable=" << button_repeat[property] << endl;
 114      fs << jsDesc << "/command=property-adjust" << endl;
 115      fs << jsDesc << "/property=" << button_propnames[property] << endl;
 116      fs << jsDesc << "/step=" << button_step[property] << endl;
 117      fs << endl;
 118 }
 119
 120
 121
 122
 123 int main(void) {
 124   jsInit();
 125
 126   jsSuper *jss=new jsSuper();
 127   jsInput *jsi=new jsInput(jss);
 128   jsi->displayValues(false);
 129   // int i;
 130   int control=0;
 131
 132
 133   cout << "Found " << jss->getNumJoysticks() << " joystick(s)" << endl;
 134
 135   if(jss->getNumJoysticks() <= 0) {
 136     cout << "Can't find any joysticks ..." << endl;
 137     exit(1);
 138   }
 139
 140   jss->firstJoystick();
 141   do {
 142     cout << "Joystick " << jss->getCurrentJoystickId() << " has "
 143          << jss->getJoystick()->getNumAxes() << " axes" << endl;
 144   } while( jss->nextJoystick() );
 145
 146   fstream fs("fgfsrc.js",ios::out);
 147
 148
 149   for(control=0;control<=7;control++) {
 150       cout << "Move the control you wish to use for " << axes_humannames[control]
 151            << endl;
 152       fflush( stdout );
 153       jsi->getInput();
 154
 155       if(jsi->getInputAxis() != -1) {
 156          cout << endl << "Assigned axis " << jsi->getInputAxis()
 157               << " on joystick " << jsi->getInputJoystick()
 158               << " to control " << axes_humannames[control]
 159               << endl;
 160
 161           writeAxisProperties( fs, control, jsi->getInputJoystick(),
 162                                jsi->getInputAxis() );
 163       } else {
 164           cout << "Skipping Axis" << endl;
 165       }
 166
 167       cout << "Press any button for next control" << endl;
 168
 169       waitForButton(jss,500);
 170       cout << endl;
 171   }
 172
 173   for(control=0;control<=5;control++) {
 174       cout << "Press the button you wish to use to "
 175            << button_humannames[control]
 176            << endl;
 177       fflush( stdout );
 178       jsi->getInput();
 179       if(jsi->getInputButton() != -1) {
 180
 181          cout << endl << "Assigned button " << jsi->getInputButton()
 182               << " on joystick " << jsi->getInputJoystick()
 183               << " to control " << button_humannames[control]
 184               << endl;
 185
 186           writeButtonProperties( fs, control, jsi->getInputJoystick(),
 187                                jsi->getInputButton() );
 188       } else {
 189           cout << "Skipping..." << endl;
 190       }
 191
 192       cout << "Press any button for next axis" << endl;
 193
 194       waitForButton(jss,500);
 195       cout << endl;
 196   }
 197
 198
 199   delete jsi;
 200   delete jss;
 201
 202   cout << "Your joystick settings are in the file fgfsrc.js" << endl;
 203   cout << "Check and edit as desired (especially important if you are"
 204          << " using a hat switch" << endl;
 205   cout << "as this program will, most likely, not get those right).  ";
 206
 207   cout << "Once you are happy, " << endl
 208        << "append its contents to your .fgfsrc or system.fgfsrc" << endl;
 209
 210   return 1;
 211 }