Interface used to receive events when an action is triggered by the user

#include 

// Example of how action maps can be registered, and how to receive callbacks when their actions are triggered
class CMyActionListener final : public IActionListener
{
    // Define the name of the action map in which our action will reside
    const char* m_szMyActionMapName = "MyActionGroup";
    // Define the identifier of the action we are registering, this should be a constant over the runtime of the application
    const ActionId m_myActionId = ActionId("MyAction");

    virtual ~CMyActionListener()
    {
        // Make sure to remove the listener when we are done
        gEnv->pGameFramework->GetIActionMapManager()->RemoveExtraActionListener(this, m_szMyActionMapName);
    }

    void RegisterAction()
    {
        IActionMapManager* pActionMapManager = gEnv->pGameFramework->GetIActionMapManager();

        // Create the action map in which our action will reside
        IActionMap* pActionMap = pActionMapManager->CreateActionMap(m_szMyActionMapName);
        // Register a listener to receive callbacks when actions in our action map are triggered
        pActionMapManager->AddExtraActionListener(this, m_szMyActionMapName);

        // Register the action in the group
        pActionMap->CreateAction(m_myActionId);

        // Now define the first input with which the user can trigger the input
        SActionInput input;
        // Define that this input is triggered with the keyboard or mouse
        input.inputDevice = eAID_KeyboardMouse;
        // Set the input to "enter"
        // defaultInput is used in case of future rebinding by the end-user at runtime
        input.input = input.defaultInput = "enter";
        // Determine the activation modes we want to listen for
        input.activationMode = eIS_Pressed | eIS_Released;

        // Now bind the input to the action we created earlier
        pActionMap->AddAndBindActionInput(m_myActionId, input);

        // Make sure that the action map is enabled by default
        // This function can also be used to toggle action maps at runtime, for example to disable vehicle inputs when exiting
        pActionMap->Enable(true);
    }

    // Called when any action is triggered
    virtual void OnAction(const ActionId &actionId, int activationMode, float value) override
    {
        const bool isInputPressed = (activationMode & eIS_Pressed) != 0;
        const bool isInputReleased = (activationMode & eIS_Released) != 0;

        // Check if the triggered action
        if (actionId == m_myActionId)
        {
            if (isInputPressed)
            {
                CryLogAlways("Action pressed!");
            }
            else if (isInputReleased)
            {
                CryLogAlways("Action released!");
            }
        }
    }
};