C4GamePadCon.h

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/*
 * OpenClonk, http://www.openclonk.org
 *
 * Copyright (c) 1998-2000, Matthes Bender
 * Copyright (c) 2001-2009, RedWolf Design GmbH, http://www.clonk.de/
 * Copyright (c) 2010-2016, The OpenClonk Team and contributors
 *
 * Distributed under the terms of the ISC license; see accompanying file
 * "COPYING" for details.
 *
 * "Clonk" is a registered trademark of Matthes Bender, used with permission.
 * See accompanying file "TRADEMARK" for details.
 *
 * To redistribute this file separately, substitute the full license texts
 * for the above references.
 */
 
/* Gamepad control - forwards gamepad events of opened gamepads to Game.KeyboardInput */
 
#ifndef INC_C4GamePadCon
#define INC_C4GamePadCon
 
#ifdef HAVE_SDL
#include "gui/C4KeyboardInput.h"
 
#include <SDL.h>
#endif
 
class C4GamePadOpener;
 
class C4GamePadControl
{
#ifdef HAVE_SDL
public:
    enum {
        FEED_BUTTONS = 1,
        FEED_MOVED   = 2,
    };
    // Called from C4AppSDL
    void FeedEvent(const SDL_Event& e, int feed);
    void CheckGamePad(const SDL_Event& e);
private:
    std::set<C4KeyCode> PressedAxis; // for button emulation
    std::map<C4KeyCode, SDL_Event> AxisEvents; // for analog movement events
    std::map<int32_t, std::shared_ptr<C4GamePadOpener> > Gamepads; // gamepad instance id -> gamepad
#endif
public:
    static const int32_t MaxStrength = 32767; // 2^15 - 1
 
    C4GamePadControl();
    ~C4GamePadControl();
    void Clear();
    int GetGamePadCount();
    void Execute();
    void DoAxisInput(); // period axis strength update controls sent on each control frame creation
 
    std::shared_ptr<C4GamePadOpener> GetGamePad(int gamepad); // Gets the nth gamepad.
    std::shared_ptr<C4GamePadOpener> GetGamePadByID(int32_t id); // Gets a gamepad by its instance id.
    std::shared_ptr<C4GamePadOpener> GetAvailableGamePad(); // Looks for a gamepad that doesn't have an assigned player.
};
 
class C4GamePadOpener
{
    int32_t player = -1;
 
public:
    C4GamePadOpener(int iGamePad);
    ~C4GamePadOpener();
 
    // A gamepad can be assigned to a player.
    int32_t GetPlayer() const { return player; }
    void SetPlayer(int32_t plr) { player = plr; }
 
    int32_t GetID(); // Returns the gamepad's instance id.
    bool IsAttached(); // Returns whether the gamepad is currently attached.
 
    // Force feedback: simple rumbling
    void PlayRumble(float strength, uint32_t length); // strength: 0-1, length: milliseconds
    void StopRumble();
 
#ifdef HAVE_SDL
    SDL_GameController *controller;
    SDL_Haptic *haptic;
#endif
};
 
#endif