Method enum_controllers

linux/lnxcontroller.cpp:853–939

enumerate all controllers on system

//	enumerate all controllers on system
bool lnxgameController::enum_controllers() {
  int num_devs = 0, dev;
  int i;

  for (i = 0; i < CT_MAX_CONTROLLERS; i++)
    m_ControlList[i].id = CTID_INVALID;

  //	Add keyboard controller
  m_ControlList[num_devs].id = CTID_KEYBOARD;
  m_ControlList[num_devs].buttons = 0;
  m_ControlList[num_devs].flags = 0;
  num_devs++;

  //	add mouse controller

  int left, top, right, bottom, zmin, zmax; // btns, axes,
  int nbtns, naxis, btnmask;
  ddio_MouseGetLimits(&left, &top, &right, &bottom, &zmin, &zmax);
  btnmask = ddio_MouseGetCaps(&nbtns, &naxis);

  // we will try to support a mouse with 3 axis and N_MSEBTNS buttons.
  m_ControlList[num_devs].id = CTID_MOUSE;
  m_ControlList[num_devs].buttons = nbtns;
  m_ControlList[num_devs].flags = CTF_X_AXIS | CTF_Y_AXIS; // | (naxis>=3 ? CTF_Z_AXIS : 0);
  m_ControlList[num_devs].btnmask = btnmask;
  m_ControlList[num_devs].normalizer[0] = 320.0f;
  m_ControlList[num_devs].normalizer[1] = 240.0f;
  m_ControlList[num_devs].normalizer[2] = 100.0f;
  m_ControlList[num_devs].sens[0] = 1.0f;
  m_ControlList[num_devs].sens[1] = 1.0f;
  m_ControlList[num_devs].sens[2] = 1.0f;
  m_ControlList[num_devs].sensmod[0] = 1.0f;
  m_ControlList[num_devs].sensmod[1] = 1.0f;
  m_ControlList[num_devs].sensmod[2] = 1.0f;
  num_devs++;

  //	we should initialize multiple controls
  //	before doing this, MAKE SURE REMOTE CONTROL SUPPORTS IT.
  for (dev = JOYSTICK_1; dev <= JOYSTICK_8; dev++) {
    tJoyInfo jc;

    //	check if device is plugged in.
    if (joy_IsValid(dev)) {
      // query the joystick's capabilites to see if joystick is truly valid
      joy_GetJoyInfo((tJoystick)dev, &jc);

      m_ControlList[num_devs].id = dev;
      m_ControlList[num_devs].buttons = jc.num_btns;
      m_ControlList[num_devs].btnmask = 0;
      m_ControlList[num_devs].flags =
          CTF_X_AXIS | CTF_Y_AXIS | ((jc.axes_mask & JOYFLAG_ZVALID) ? CTF_Z_AXIS : 0) |
          ((jc.axes_mask & JOYFLAG_RVALID) ? CTF_R_AXIS : 0) | ((jc.axes_mask & JOYFLAG_UVALID) ? CTF_U_AXIS : 0) |
          ((jc.axes_mask & JOYFLAG_VVALID) ? CTF_V_AXIS : 0) | ((jc.axes_mask & JOYFLAG_POVVALID) ? CTF_POV : 0) |
          ((jc.axes_mask & JOYFLAG_POV2VALID) ? CTF_POV2 : 0) | ((jc.axes_mask & JOYFLAG_POV3VALID) ? CTF_POV3 : 0) |
          ((jc.axes_mask & JOYFLAG_POV4VALID) ? CTF_POV4 : 0);
      m_ControlList[num_devs].normalizer[0] = (jc.maxx - jc.minx) / 2.0f;
      m_ControlList[num_devs].normalizer[1] = (jc.maxy - jc.miny) / 2.0f;
      m_ControlList[num_devs].normalizer[2] = (jc.maxz - jc.minz) / 2.0f;