VirtualController.h

/*
 * Copyright (C) 2014 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef VIRTUALCONTROLLER_H
#define VIRTUALCONTROLLER_H

#include <map>
#include <vector>
#include "ControllerEvent.h"
#include "InputScheme.h"
#include "JoystickAxisScheme.h"
#include "KeyScheme.h"
#include "TriggerAxisScheme.h"

class VirtualController {
public:
    enum SupportedAsFlag {
        NO_SUPPORT = 0x00,

        BINARY_ACTION = 0x01,

        UNIT_INTERVAL_ACTION = 0x02,

        SYMMETRIC_UNIT_INTERVAL_ACTION = 0x04,
    };

    VirtualController(int deviceId);

    virtual ~VirtualController();

    void setJoystickAxisScheme(const JoystickAxisScheme& joystickAxisScheme);
    void setKeyScheme(const KeyScheme& keyScheme);
    void setTriggerAxisScheme(const TriggerAxisScheme& triggerAxisScheme);

    int getDeviceId() const { return mDeviceId; }
    bool isSourceOfEvent(ControllerEvent* event) const;

    virtual bool onControllerEvent(ControllerEvent* event);

    virtual int getActionSupport(const InputScheme<>::Action& action) const;

    virtual bool isActionActivated(const InputScheme<>::Action& action) const;
    virtual float getActionUnitIntervalValue(const InputScheme<>::Action& action) const;
    virtual float getActionSymmetricUnitIntervalValue(const InputScheme<>::Action& action) const;

private:
    int mDeviceId = -1;

    JoystickAxisScheme mJoystickAxisScheme;
    // Reverse maps Actions to joystick axes that trigger that action
    std::map<InputScheme<>::Action, std::vector<JoystickAxisCode> > mActionJoystickAxes;

    KeyScheme mKeyScheme;
    // Reverse maps Actions to keys that trigger that action
    std::map<InputScheme<>::Action, std::vector<KeyCode> > mActionKeys;

    TriggerAxisScheme mTriggerAxisScheme;
    // Reverse maps Actions to trigger axes that trigger that action
    std::map<InputScheme<>::Action, std::vector<TriggerAxisCode> > mActionTriggerAxes;

    // Since VirtualController can represent the state of a any controller whose input capabilities
    // can be specified in a ControllerEvent, it makes most sense to store state as a
    // ControllerEvent
    ControllerEvent mState;
};

#endif // VIRTUALCONTROLLER_H