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343 lines
14 KiB
C++
343 lines
14 KiB
C++
/* -------------------------------------------------------
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Copyright (c) 2011 Alberto G. Salguero (alberto.salguero (at) uca.es)
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Permission is hereby granted, free of charge, to any
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person obtaining a copy of this software and associated
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documentation files (the "Software"), to deal in the
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Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the
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Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice
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shall be included in all copies or substantial portions of
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the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
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KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
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OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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------------------------------------------------------- */
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#include "ICSInputControlSystem.h"
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#define SDL_JOY_AXIS_MIN -32768
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#define SDL_JOY_AXIS_MAX 32767
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#define DEADZONE 0.1f
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namespace ICS
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{
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// load xml
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void InputControlSystem::loadJoystickAxisBinders(TiXmlElement* xmlControlNode)
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{
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TiXmlElement* xmlJoystickBinder = xmlControlNode->FirstChildElement("JoystickAxisBinder");
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while(xmlJoystickBinder)
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{
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Control::ControlChangingDirection dir = Control::STOP;
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if(std::string(xmlJoystickBinder->Attribute("direction")) == "INCREASE")
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{
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dir = Control::INCREASE;
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}
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else if(std::string(xmlJoystickBinder->Attribute("direction")) == "DECREASE")
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{
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dir = Control::DECREASE;
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}
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addJoystickAxisBinding(mControls.back(), FromString<int>(xmlJoystickBinder->Attribute("deviceId")), FromString<int>(xmlJoystickBinder->Attribute("axis")), dir);
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xmlJoystickBinder = xmlJoystickBinder->NextSiblingElement("JoystickAxisBinder");
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}
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}
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void InputControlSystem::loadJoystickButtonBinders(TiXmlElement* xmlControlNode)
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{
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TiXmlElement* xmlJoystickButtonBinder = xmlControlNode->FirstChildElement("JoystickButtonBinder");
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while(xmlJoystickButtonBinder)
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{
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Control::ControlChangingDirection dir = Control::STOP;
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if(std::string(xmlJoystickButtonBinder->Attribute("direction")) == "INCREASE")
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{
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dir = Control::INCREASE;
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}
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else if(std::string(xmlJoystickButtonBinder->Attribute("direction")) == "DECREASE")
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{
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dir = Control::DECREASE;
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}
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addJoystickButtonBinding(mControls.back(), FromString<int>(xmlJoystickButtonBinder->Attribute("deviceId")), FromString<int>(xmlJoystickButtonBinder->Attribute("button")), dir);
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xmlJoystickButtonBinder = xmlJoystickButtonBinder->NextSiblingElement("JoystickButtonBinder");
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}
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}
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// add bindings
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void InputControlSystem::addJoystickAxisBinding(Control* control, int deviceID, int axis, Control::ControlChangingDirection direction)
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{
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ICS_LOG("\tAdding AxisBinder [axis="
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+ ToString<int>(axis) + ", deviceID="
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+ ToString<int>(deviceID) + ", direction="
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+ ToString<int>(direction) + "]");
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control->setValue(0.5f); //all joystick axis start at .5, so do that
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ControlAxisBinderItem controlAxisBinderItem;
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controlAxisBinderItem.control = control;
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controlAxisBinderItem.direction = direction;
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mControlsJoystickAxisBinderMap[deviceID][axis] = controlAxisBinderItem;
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}
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void InputControlSystem::addJoystickButtonBinding(Control* control, int deviceID, unsigned int button, Control::ControlChangingDirection direction)
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{
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ICS_LOG("\tAdding JoystickButtonBinder [button="
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+ ToString<int>(button) + ", deviceID="
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+ ToString<int>(deviceID) + ", direction="
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+ ToString<int>(direction) + "]");
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ControlButtonBinderItem controlJoystickButtonBinderItem;
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controlJoystickButtonBinderItem.direction = direction;
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controlJoystickButtonBinderItem.control = control;
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mControlsJoystickButtonBinderMap[deviceID][button] = controlJoystickButtonBinderItem;
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}
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// get bindings
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int InputControlSystem::getJoystickAxisBinding(Control* control, int deviceID, ICS::Control::ControlChangingDirection direction)
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{
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if(mControlsJoystickAxisBinderMap.find(deviceID) != mControlsJoystickAxisBinderMap.end())
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{
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ControlsAxisBinderMapType::iterator it = mControlsJoystickAxisBinderMap[deviceID].begin();
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while(it != mControlsJoystickAxisBinderMap[deviceID].end())
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{
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if(it->first >= 0 && it->second.control == control && it->second.direction == direction)
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{
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return it->first;
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}
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++it;
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}
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}
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return /*NamedAxis::*/UNASSIGNED;
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}
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unsigned int InputControlSystem::getJoystickButtonBinding(Control* control, int deviceID, ICS::Control::ControlChangingDirection direction)
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{
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if(mControlsJoystickButtonBinderMap.find(deviceID) != mControlsJoystickButtonBinderMap.end())
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{
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ControlsButtonBinderMapType::iterator it = mControlsJoystickButtonBinderMap[deviceID].begin();
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while(it != mControlsJoystickButtonBinderMap[deviceID].end())
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{
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if(it->second.control == control && it->second.direction == direction)
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{
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return it->first;
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}
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++it;
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}
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}
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return ICS_MAX_DEVICE_BUTTONS;
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}
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// remove bindings
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void InputControlSystem::removeJoystickAxisBinding(int deviceID, int axis)
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{
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if(mControlsJoystickAxisBinderMap.find(deviceID) != mControlsJoystickAxisBinderMap.end())
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{
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ControlsAxisBinderMapType::iterator it = mControlsJoystickAxisBinderMap[deviceID].find(axis);
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if(it != mControlsJoystickAxisBinderMap[deviceID].end())
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{
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mControlsJoystickAxisBinderMap[deviceID].erase(it);
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}
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}
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}
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void InputControlSystem::removeJoystickButtonBinding(int deviceID, unsigned int button)
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{
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if(mControlsJoystickButtonBinderMap.find(deviceID) != mControlsJoystickButtonBinderMap.end())
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{
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ControlsButtonBinderMapType::iterator it = mControlsJoystickButtonBinderMap[deviceID].find(button);
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if(it != mControlsJoystickButtonBinderMap[deviceID].end())
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{
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mControlsJoystickButtonBinderMap[deviceID].erase(it);
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}
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}
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}
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// joyStick listeners
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void InputControlSystem::buttonPressed(int deviceID, const SDL_ControllerButtonEvent &evt)
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{
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if(mActive)
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{
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if(!mDetectingBindingControl)
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{
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if(mControlsJoystickButtonBinderMap.find(deviceID) != mControlsJoystickButtonBinderMap.end())
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{
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ControlsButtonBinderMapType::const_iterator it = mControlsJoystickButtonBinderMap[deviceID].find(evt.button);
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if(it != mControlsJoystickButtonBinderMap[deviceID].end())
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{
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it->second.control->setIgnoreAutoReverse(false);
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if(!it->second.control->getAutoChangeDirectionOnLimitsAfterStop())
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{
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it->second.control->setChangingDirection(it->second.direction);
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}
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else
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{
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if(it->second.control->getValue() == 1)
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{
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it->second.control->setChangingDirection(Control::DECREASE);
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}
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else if(it->second.control->getValue() == 0)
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{
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it->second.control->setChangingDirection(Control::INCREASE);
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}
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}
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}
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}
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}
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}
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}
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void InputControlSystem::buttonReleased(int deviceID, const SDL_ControllerButtonEvent &evt)
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{
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if(mActive)
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{
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if(!mDetectingBindingControl)
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{
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if(mControlsJoystickButtonBinderMap.find(deviceID) != mControlsJoystickButtonBinderMap.end())
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{
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ControlsButtonBinderMapType::const_iterator it = mControlsJoystickButtonBinderMap[deviceID].find(evt.button);
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if(it != mControlsJoystickButtonBinderMap[deviceID].end())
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{
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it->second.control->setChangingDirection(Control::STOP);
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}
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}
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}
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else if(mDetectingBindingListener)
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{
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mDetectingBindingListener->joystickButtonBindingDetected(this, deviceID,
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mDetectingBindingControl, evt.button, mDetectingBindingDirection);
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}
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}
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}
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void InputControlSystem::axisMoved(int deviceID, const SDL_ControllerAxisEvent &evt)
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{
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if(mActive)
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{
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if(!mDetectingBindingControl)
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{
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if(mControlsJoystickAxisBinderMap.find(deviceID) != mControlsJoystickAxisBinderMap.end())
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{
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ControlAxisBinderItem joystickBinderItem = mControlsJoystickAxisBinderMap[deviceID][evt.axis]; // joystic axis start at 0 index
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Control* ctrl = joystickBinderItem.control;
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if(ctrl)
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{
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ctrl->setIgnoreAutoReverse(true);
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float axisRange = SDL_JOY_AXIS_MAX - SDL_JOY_AXIS_MIN;
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float valDisplaced = (float)(evt.value - SDL_JOY_AXIS_MIN);
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float percent = valDisplaced / axisRange * (1+DEADZONE*2) - DEADZONE; //Assures all values, 0 through 1, are seen
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if(percent > .5-DEADZONE && percent < .5+DEADZONE) //close enough to center
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percent = .5;
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else if(percent > .5)
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percent -= DEADZONE;
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else
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percent += DEADZONE;
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if(joystickBinderItem.direction == Control::INCREASE)
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{
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ctrl->setValue( percent );
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}
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else if(joystickBinderItem.direction == Control::DECREASE)
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{
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ctrl->setValue( 1 - ( percent ) );
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}
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}
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}
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}
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else if(mDetectingBindingListener)
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{
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//ControlAxisBinderItem joystickBinderItem = mControlsJoystickAxisBinderMap[ evt.which ][ axis ]; // joystic axis start at 0 index
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//Control* ctrl = joystickBinderItem.control;
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//if(ctrl && ctrl->isAxisBindable())
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if(mDetectingBindingControl && mDetectingBindingControl->isAxisBindable())
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{
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if( abs( evt.value ) > ICS_JOYSTICK_AXIS_BINDING_MARGIN)
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{
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mDetectingBindingListener->joystickAxisBindingDetected(this, deviceID,
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mDetectingBindingControl, evt.axis, mDetectingBindingDirection);
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}
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}
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}
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}
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}
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void InputControlSystem::controllerAdded(int deviceID, const SDL_ControllerDeviceEvent &args)
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{
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ICS_LOG("Adding joystick (index: " + ToString<int>(args.which) + ")");
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SDL_GameController* cntrl = SDL_GameControllerOpen(args.which);
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int instanceID = SDL_JoystickInstanceID(SDL_GameControllerGetJoystick(cntrl));
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if(std::find(mJoystickIDList.begin(), mJoystickIDList.end(), deviceID)==mJoystickIDList.end())
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{
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for(int j = 0 ; j < ICS_MAX_JOYSTICK_AXIS ; j++)
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{
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if(mControlsJoystickAxisBinderMap[deviceID].find(j) == mControlsJoystickAxisBinderMap[deviceID].end())
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{
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ControlAxisBinderItem controlJoystickBinderItem;
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controlJoystickBinderItem.direction = Control::STOP;
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controlJoystickBinderItem.control = NULL;
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mControlsJoystickAxisBinderMap[deviceID][j] = controlJoystickBinderItem;
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}
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}
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mJoystickIDList.push_front(deviceID);
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}
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mJoystickInstanceMap[instanceID] = cntrl;
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}
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void InputControlSystem::controllerRemoved(const SDL_ControllerDeviceEvent &args)
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{
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ICS_LOG("Removing joystick (instance id: " + ToString<int>(args.which) + ")");
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if(mJoystickInstanceMap.count(args.which)!=0)
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{
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SDL_GameControllerClose(mJoystickInstanceMap.at(args.which));
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mJoystickInstanceMap.erase(args.which);
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}
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}
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// joystick auto bindings
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void DetectingBindingListener::joystickAxisBindingDetected(InputControlSystem* ICS, int deviceID, Control* control, int axis, Control::ControlChangingDirection direction)
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{
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// if the joystick axis is used by another control, remove it
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ICS->removeJoystickAxisBinding(deviceID, axis);
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// if the control has an axis assigned, remove it
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int oldAxis = ICS->getJoystickAxisBinding(control, deviceID, direction);
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if(oldAxis != InputControlSystem::UNASSIGNED)
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{
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ICS->removeJoystickAxisBinding(deviceID, oldAxis);
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}
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ICS->addJoystickAxisBinding(control, deviceID, axis, direction);
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ICS->cancelDetectingBindingState();
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}
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void DetectingBindingListener::joystickButtonBindingDetected(InputControlSystem* ICS, int deviceID, Control* control
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, unsigned int button, Control::ControlChangingDirection direction)
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{
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// if the joystick button is used by another control, remove it
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ICS->removeJoystickButtonBinding(deviceID, button);
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// if the control has a joystick button assigned, remove it
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unsigned int oldButton = ICS->getJoystickButtonBinding(control, deviceID, direction);
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if(oldButton != ICS_MAX_DEVICE_BUTTONS)
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{
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ICS->removeJoystickButtonBinding(deviceID, oldButton);
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}
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ICS->addJoystickButtonBinding(control, deviceID, button, direction);
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ICS->cancelDetectingBindingState();
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}
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}
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