[3274] | 1 | /* |
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| 2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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| 3 | * > www.orxonox.net < |
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| 4 | * |
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| 5 | * |
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| 6 | * License notice: |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU General Public License |
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| 10 | * as published by the Free Software Foundation; either version 2 |
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| 11 | * of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 21 | * |
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| 22 | * Author: |
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| 23 | * Reto Grieder |
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| 24 | * Co-authors: |
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| 25 | * ... |
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| 26 | * |
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| 27 | */ |
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| 28 | |
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| 29 | /** |
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| 30 | @file |
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[3327] | 31 | @brief |
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| 32 | Implementation of InputDevice and InputDeviceTemplated |
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[3274] | 33 | */ |
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| 34 | |
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| 35 | #ifndef _InputDevice_H__ |
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| 36 | #define _InputDevice_H__ |
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| 37 | |
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| 38 | #include "InputPrereqs.h" |
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| 39 | |
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| 40 | #include <vector> |
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| 41 | #include <ois/OISInputManager.h> |
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[7174] | 42 | #include <ois/OISException.h> |
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[3274] | 43 | |
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[5929] | 44 | #include "util/Clock.h" |
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[3274] | 45 | #include "util/Debug.h" |
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[5747] | 46 | #include "util/Exception.h" |
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[3274] | 47 | #include "InputState.h" |
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| 48 | |
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| 49 | namespace orxonox |
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| 50 | { |
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| 51 | /** |
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| 52 | @brief |
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[3327] | 53 | Abstract base class for all input devices (mouse, keyboard and joy sticks). |
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| 54 | |
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| 55 | It provides common virtual functions to be used by the InputManager. |
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[3274] | 56 | */ |
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| 57 | class InputDevice |
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| 58 | { |
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| 59 | public: |
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[3327] | 60 | //! Only resets the members |
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| 61 | InputDevice(unsigned int id) : bCalibrating_(false), deviceID_(id) { } |
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[3274] | 62 | virtual ~InputDevice() { } |
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[3327] | 63 | //! Returns the device class (derived) name as string |
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| 64 | virtual std::string getClassName() const = 0; |
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| 65 | //! Updates the device which should in turn distribute events |
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[3274] | 66 | virtual void update(const Clock& time) = 0; |
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[3327] | 67 | //! Clear all button related buffers |
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[3274] | 68 | virtual void clearBuffers() = 0; |
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| 69 | |
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[3327] | 70 | //! Start calibrating (only useful for joy sticks) |
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[3274] | 71 | void startCalibration() |
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| 72 | { |
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| 73 | bCalibrating_ = true; |
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| 74 | this->calibrationStarted(); |
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| 75 | } |
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| 76 | |
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[3327] | 77 | //! Stop calibrating and evaluate the data (only useful for joy sticks) |
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[3274] | 78 | void stopCalibration() |
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| 79 | { |
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| 80 | this->calibrationStopped(); |
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| 81 | bCalibrating_ = false; |
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| 82 | } |
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| 83 | |
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[3327] | 84 | //! Returns a reference to the internal input state vector. Use with care! |
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| 85 | std::vector<InputState*>& getStateListRef() { return this->inputStates_; } |
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| 86 | //! Returns the ID of the device (the same as in InputDeviceEnumerator for mouse and keyboard) |
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| 87 | unsigned int getDeviceID() const { return this->deviceID_; } |
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| 88 | //! Tells whether the device is in calibration mode |
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| 89 | bool isCalibrating() const { return bCalibrating_; } |
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[3274] | 90 | |
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| 91 | protected: |
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[3327] | 92 | //! To be ovrridden by the subclass |
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[3274] | 93 | virtual void calibrationStarted() { } |
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[3327] | 94 | //! To be ovrridden by the subclass |
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[3274] | 95 | virtual void calibrationStopped() { } |
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| 96 | |
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[3327] | 97 | //! List of all input states that receive events from this device |
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[3274] | 98 | std::vector<InputState*> inputStates_; |
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| 99 | |
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| 100 | private: |
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[3327] | 101 | InputDevice(const InputDevice& rhs); //!< Don't use! |
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[3274] | 102 | |
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[3327] | 103 | bool bCalibrating_; //!< Whether the device is in calibration mode |
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| 104 | const unsigned int deviceID_; //!< ID of the device (the same as in InputDeviceEnumerator for mouse and keyboard) |
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[3274] | 105 | }; |
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| 106 | |
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| 107 | /** |
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| 108 | @brief |
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[3327] | 109 | Heavily templated base class for all three input devices. |
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| 110 | |
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| 111 | The purpose of this class is not to provide an interface but rather |
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| 112 | to reduce code redundancy. This concerns device creation and destruction |
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| 113 | as well as common code for button events (press, release, hold). |
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| 114 | |
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| 115 | In order to derive from this class you have to supply it with a struct |
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| 116 | as template parameter that contains the necessary type traits. |
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[3274] | 117 | */ |
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| 118 | template <class Traits> |
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| 119 | class InputDeviceTemplated : public InputDevice |
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| 120 | { |
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| 121 | typedef typename Traits::DeviceClass DeviceClass; |
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| 122 | typedef typename Traits::OISDeviceClass OISDeviceClass; |
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| 123 | typedef typename Traits::ButtonType ButtonType; |
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| 124 | typedef typename Traits::ButtonTypeParam ButtonTypeParam; |
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| 125 | static const OIS::Type OISDeviceValue = Traits::OISDeviceValue; |
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| 126 | |
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| 127 | public: |
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[3327] | 128 | //! Creates the OIS device |
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| 129 | InputDeviceTemplated(unsigned int id, OIS::InputManager* oisInputManager) |
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[3274] | 130 | : InputDevice(id) |
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[3327] | 131 | , oisInputManager_(oisInputManager) |
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[3274] | 132 | { |
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[3327] | 133 | oisDevice_ = static_cast<OISDeviceClass*>(oisInputManager_->createInputObject(OISDeviceValue, true)); |
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[7271] | 134 | // Note: after the static_cast here, the cast this pointer becomes |
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[3327] | 135 | // invalid right until the subclass has been constructed! |
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[3274] | 136 | oisDevice_->setEventCallback(static_cast<DeviceClass*>(this)); |
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| 137 | COUT(4) << "Instantiated a " << this->getClassName() << std::endl; |
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| 138 | } |
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| 139 | |
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[3327] | 140 | //! Destroys the OIS device |
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[3274] | 141 | virtual ~InputDeviceTemplated() |
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| 142 | { |
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| 143 | try |
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| 144 | { |
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[3327] | 145 | oisInputManager_->destroyInputObject(oisDevice_); |
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[3274] | 146 | } |
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[7174] | 147 | catch (const OIS::Exception& ex) |
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[3274] | 148 | { |
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[7174] | 149 | COUT(1) << this->getClassName() << " destruction failed: " << ex.eText << std::endl |
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[5747] | 150 | << " Potential resource leak!" << std::endl; |
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[3274] | 151 | } |
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| 152 | } |
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| 153 | |
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[3327] | 154 | //! Captures OIS events (which then get distributed to the derived class) and creates the button held events |
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[3274] | 155 | void update(const Clock& time) |
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| 156 | { |
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| 157 | oisDevice_->capture(); |
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| 158 | |
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[3327] | 159 | // Call all the states with the held button event |
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| 160 | for (unsigned int iB = 0; iB < pressedButtons_.size(); ++iB) |
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| 161 | for (unsigned int iS = 0; iS < inputStates_.size(); ++iS) |
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[6746] | 162 | inputStates_[iS]->buttonEvent<ButtonEvent::THold, typename Traits::ButtonTypeParam>( |
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[3327] | 163 | this->getDeviceID(), static_cast<DeviceClass*>(this)->getButtonEventArg(pressedButtons_[iB])); |
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[3274] | 164 | |
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[3327] | 165 | // Call states with device update events |
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| 166 | for (unsigned int i = 0; i < inputStates_.size(); ++i) |
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| 167 | inputStates_[i]->update(time.getDeltaTime(), this->getDeviceID()); |
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[3274] | 168 | |
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| 169 | static_cast<DeviceClass*>(this)->updateImpl(time); |
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| 170 | } |
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| 171 | |
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[3327] | 172 | //! Clears the list of pressed buttons and calls the derived class's method |
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[3274] | 173 | void clearBuffers() |
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| 174 | { |
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| 175 | pressedButtons_.clear(); |
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| 176 | static_cast<DeviceClass*>(this)->clearBuffersImpl(); |
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| 177 | } |
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| 178 | |
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[3327] | 179 | // Returns a pointer to the OIS device |
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| 180 | OISDeviceClass* getOISDevice() { return this->oisDevice_; } |
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| 181 | // Returns the name of the derived class as string |
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| 182 | std::string getClassName() const { return DeviceClass::getClassNameImpl(); } |
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| 183 | |
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[3274] | 184 | protected: |
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[3327] | 185 | //! Common code for all button pressed events (updates pressed buttons list and calls the input states) |
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| 186 | FORCEINLINE void buttonPressed(ButtonTypeParam button) |
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[3274] | 187 | { |
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| 188 | // check whether the button already is in the list (can happen when focus was lost) |
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| 189 | unsigned int iButton = 0; |
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| 190 | while (iButton < pressedButtons_.size() && pressedButtons_[iButton] != button) |
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| 191 | iButton++; |
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| 192 | if (iButton == pressedButtons_.size()) |
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| 193 | pressedButtons_.push_back(button); |
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| 194 | else |
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| 195 | return; // Button already pressed |
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| 196 | |
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| 197 | // Call states |
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| 198 | for (unsigned int i = 0; i < inputStates_.size(); ++i) |
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[6746] | 199 | inputStates_[i]->buttonEvent<ButtonEvent::TPress, typename Traits::ButtonTypeParam>(this->getDeviceID(), static_cast<DeviceClass*>(this)->getButtonEventArg(button)); |
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[3274] | 200 | } |
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| 201 | |
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[3327] | 202 | //! Common code for all button released events (updates pressed buttons list and calls the input states) |
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| 203 | FORCEINLINE void buttonReleased(ButtonTypeParam button) |
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[3274] | 204 | { |
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| 205 | // remove the button from the pressedButtons_ list |
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[6417] | 206 | bool found = false; |
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[3274] | 207 | for (unsigned int iButton = 0; iButton < pressedButtons_.size(); iButton++) |
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| 208 | { |
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| 209 | if (pressedButtons_[iButton] == button) |
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| 210 | { |
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| 211 | pressedButtons_.erase(pressedButtons_.begin() + iButton); |
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[6417] | 212 | found = true; |
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[3274] | 213 | break; |
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| 214 | } |
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| 215 | } |
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[6417] | 216 | if (!found) |
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| 217 | return; // We ignore release strokes when the press was not captured |
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[3274] | 218 | |
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| 219 | // Call states |
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| 220 | for (unsigned int i = 0; i < inputStates_.size(); ++i) |
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[6746] | 221 | inputStates_[i]->buttonEvent<ButtonEvent::TRelease, typename Traits::ButtonTypeParam>(this->getDeviceID(), static_cast<DeviceClass*>(this)->getButtonEventArg(button)); |
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[3274] | 222 | } |
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| 223 | |
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[3327] | 224 | //! Managed pointer to the OIS device |
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[3274] | 225 | OISDeviceClass* oisDevice_; |
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| 226 | |
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| 227 | private: |
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| 228 | //!< Fallback dummy function for static polymorphism |
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[3327] | 229 | void clearBuffersImpl() { } |
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| 230 | //!< Fallback dummy function for static polymorphism |
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| 231 | void updateImpl(const Clock& time) { } |
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| 232 | //!< Fallback dummy function for static polymorphism |
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[3274] | 233 | ButtonType& getButtonEventArg(ButtonType& button) { return button; } |
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| 234 | |
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[3327] | 235 | std::vector<ButtonType> pressedButtons_; //!< List of all buttons that are currently pressed down |
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| 236 | OIS::InputManager* oisInputManager_; //!< Pointer to the OIS InputManager that can create and destroy devices |
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[3274] | 237 | }; |
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| 238 | } |
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| 239 | |
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| 240 | #endif /* _InputDevice_H__ */ |
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