19de148351
git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/trunk@1085 4e206d99-4929-0410-ac5d-dfc041789085
136 lines
4.8 KiB
C++
136 lines
4.8 KiB
C++
////////////////////////////////////////////////////////////
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//
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// SFML - Simple and Fast Multimedia Library
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// Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)
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//
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// This software is provided 'as-is', without any express or implied warranty.
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// In no event will the authors be held liable for any damages arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it freely,
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// subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented;
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// you must not claim that you wrote the original software.
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// If you use this software in a product, an acknowledgment
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// in the product documentation would be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such,
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// and must not be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source distribution.
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//
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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// Headers
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////////////////////////////////////////////////////////////
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#define _WIN32_WINDOWS 0x0501
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#define _WIN32_WINNT 0x0501
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#include <SFML/Window/Joystick.hpp>
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#include <windows.h>
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#include <mmsystem.h>
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namespace sf
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{
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namespace priv
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{
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////////////////////////////////////////////////////////////
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/// Initialize the instance and bind it to a physical joystick
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////////////////////////////////////////////////////////////
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void Joystick::Initialize(unsigned int Index)
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{
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// Reset state
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myIndex = JOYSTICKID1;
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myNbAxes = 0;
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myNbButtons = 0;
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// Get the Index-th connected joystick
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MMRESULT Error;
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JOYINFOEX JoyInfo;
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for (unsigned int NbFound = 0; (Error = joyGetPosEx(myIndex, &JoyInfo)) != JOYERR_PARMS; myIndex++)
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{
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// Check if the current joystick is connected
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if (Error == JOYERR_NOERROR)
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{
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// Check if it's the required index
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if (NbFound == Index)
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{
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// Ok : store its parameters and return
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JOYCAPS Caps;
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joyGetDevCaps(myIndex, &Caps, sizeof(Caps));
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myNbAxes = Caps.wNumAxes;
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myNbButtons = Caps.wNumButtons;
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if (myNbButtons > JoystickState::MaxButtons)
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myNbButtons = JoystickState::MaxButtons;
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return;
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}
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// Go to the next valid joystick
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++NbFound;
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}
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}
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}
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////////////////////////////////////////////////////////////
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/// Update the current joystick and return its new state
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////////////////////////////////////////////////////////////
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JoystickState Joystick::UpdateState()
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{
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JoystickState State = {0};
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// Get the joystick caps (for range conversions)
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JOYCAPS Caps;
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if (joyGetDevCaps(myIndex, &Caps, sizeof(Caps)) == JOYERR_NOERROR)
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{
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// Get the current joystick state
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JOYINFOEX Pos;
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Pos.dwFlags = JOY_RETURNALL;
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Pos.dwSize = sizeof(JOYINFOEX);
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if (joyGetPosEx(myIndex, &Pos) == JOYERR_NOERROR)
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{
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// Axes
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State.Axis[Joy::AxisX] = (Pos.dwXpos - (Caps.wXmax + Caps.wXmin) / 2.f) * 200.f / (Caps.wXmax - Caps.wXmin);
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State.Axis[Joy::AxisY] = (Pos.dwYpos - (Caps.wYmax + Caps.wYmin) / 2.f) * 200.f / (Caps.wYmax - Caps.wYmin);
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State.Axis[Joy::AxisZ] = (Pos.dwZpos - (Caps.wZmax + Caps.wZmin) / 2.f) * 200.f / (Caps.wZmax - Caps.wZmin);
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State.Axis[Joy::AxisR] = (Pos.dwRpos - (Caps.wRmax + Caps.wRmin) / 2.f) * 200.f / (Caps.wRmax - Caps.wRmin);
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State.Axis[Joy::AxisU] = (Pos.dwUpos - (Caps.wUmax + Caps.wUmin) / 2.f) * 200.f / (Caps.wUmax - Caps.wUmin);
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State.Axis[Joy::AxisV] = (Pos.dwVpos - (Caps.wVmax + Caps.wVmin) / 2.f) * 200.f / (Caps.wVmax - Caps.wVmin);
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// POV
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State.Axis[Joy::AxisPOV] = Pos.dwPOV / 100.f;
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// Buttons
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for (unsigned int i = 0; i < GetButtonsCount(); ++i)
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State.Buttons[i] = (Pos.dwButtons & (1 << i)) != 0;
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}
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}
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return State;
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}
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////////////////////////////////////////////////////////////
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/// Get the number of axes supported by the joystick
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////////////////////////////////////////////////////////////
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unsigned int Joystick::GetAxesCount() const
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{
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return myNbAxes;
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}
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////////////////////////////////////////////////////////////
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/// Get the number of buttons supported by the joystick
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////////////////////////////////////////////////////////////
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unsigned int Joystick::GetButtonsCount() const
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{
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return myNbButtons;
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}
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} // namespace priv
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} // namespace sf
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