xboxdrv/btn_to_abs.cpp

61 lines
1.8 KiB
C++

/*
** Xbox/Xbox360 USB Gamepad Userspace Driver
** Copyright (C) 2008 Ingo Ruhnke <grumbel@gmx.de>
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <boost/bind.hpp>
#include "btn_to_abs.hpp"
BtnToAbs::BtnToAbs()
: target_value(0)
{
btn_port_in.push_back(new BtnPortIn("BtnToAbs-Out-0",
boost::bind(&BtnToAbs::on_btn, this, _1)));
btn_port_in.push_back(new BtnPortIn("BtnToAbs-Out-1",
boost::bind(&BtnToAbs::on_btn, this, _1)));
abs_port_out.push_back(new AbsPortOut("BtnToAbs-In", -32767, 32767));
}
void
BtnToAbs::update(float delta)
{
// make this configurable
float relax = 0.05f;
abs_port_out[0]->set_state(int(abs_port_out[0]->get_state() +
relax * (target_value - abs_port_out[0]->get_state())));
}
void
BtnToAbs::on_btn(BtnPortOut* port)
{
if (btn_port_in[0]->out_port->get_state() &&
!btn_port_in[1]->out_port->get_state())
{
target_value = abs_port_out[0]->min_value;
}
else if (!btn_port_in[0]->out_port->get_state() &&
btn_port_in[1]->out_port->get_state())
{
target_value = abs_port_out[0]->max_value;
}
else
{
target_value = 0;
}
}
/* EOF */