//====== Copyright 1996-2013, Valve Corporation, All rights reserved. =======
//
// Purpose: interface to valve controller
//
//=============================================================================

#ifndef ISTEAMCONTROLLER_H
#define ISTEAMCONTROLLER_H
#ifdef _WIN32
#pragma once
#endif

#include "isteamclient.h"

// callbacks
#if defined(VALVE_CALLBACK_PACK_SMALL)
#pragma pack(push, 4)
#elif defined(VALVE_CALLBACK_PACK_LARGE)
#pragma pack(push, 8)
#else
#error isteamclient.h must be included
#endif

#define MAX_STEAM_CONTROLLERS 16

#pragma pack(pop)

#define STEAM_RIGHT_TRIGGER_MASK 0x0000001
#define STEAM_LEFT_TRIGGER_MASK 0x0000002
#define STEAM_RIGHT_BUMPER_MASK 0x0000004
#define STEAM_LEFT_BUMPER_MASK 0x0000008
#define STEAM_BUTTON_0_MASK 0x0000010
#define STEAM_BUTTON_1_MASK 0x0000020
#define STEAM_BUTTON_2_MASK 0x0000040
#define STEAM_BUTTON_3_MASK 0x0000080
#define STEAM_TOUCH_0_MASK 0x0000100
#define STEAM_TOUCH_1_MASK 0x0000200
#define STEAM_TOUCH_2_MASK 0x0000400
#define STEAM_TOUCH_3_MASK 0x0000800
#define STEAM_BUTTON_MENU_MASK 0x0001000
#define STEAM_BUTTON_STEAM_MASK 0x0002000
#define STEAM_BUTTON_ESCAPE_MASK 0x0004000
#define STEAM_BUTTON_BACK_LEFT_MASK 0x0008000
#define STEAM_BUTTON_BACK_RIGHT_MASK 0x0010000
#define STEAM_BUTTON_LEFTPAD_CLICKED_MASK 0x0020000
#define STEAM_BUTTON_RIGHTPAD_CLICKED_MASK 0x0040000
#define STEAM_LEFTPAD_FINGERDOWN_MASK 0x0080000
#define STEAM_RIGHTPAD_FINGERDOWN_MASK 0x0100000
#define STEAM_JOYSTICK_BUTTON_MASK 0x0400000

#pragma pack(push, 1)

struct SteamControllerState001_t {
    // If packet num matches that on your prior call, then the controller state
    // hasn't been changed since your last call and there is no need to process
    // it
    uint32 unPacketNum;

    // bit flags for each of the buttons
    uint64 ulButtons;

    // Left pad coordinates
    short sLeftPadX;
    short sLeftPadY;

    // Right pad coordinates
    short sRightPadX;
    short sRightPadY;
};

#pragma pack(pop)

#define SteamControllerState_t SteamControllerState001_t

enum ESteamControllerPad {
    k_ESteamControllerPad_Left,
    k_ESteamControllerPad_Right
};

//-----------------------------------------------------------------------------
// Purpose: Native Steam controller support API
//-----------------------------------------------------------------------------
class ISteamController {
   public:
    //
    // Native controller support API
    //

    // Must call init and shutdown when starting/ending use of the interface
    virtual bool Init(const char *pchAbsolutePathToControllerConfigVDF) = 0;
    virtual bool Shutdown() = 0;

    // Pump callback/callresult events, SteamAPI_RunCallbacks will do this for
    // you, normally never need to call directly.
    virtual void RunFrame() = 0;

    // Get the state of the specified controller, returns false if that
    // controller is not connected
    virtual bool GetControllerState(uint32 unControllerIndex,
                                    SteamControllerState_t *pState) = 0;

    // Trigger a haptic pulse on the controller
    virtual void TriggerHapticPulse(uint32 unControllerIndex,
                                    ESteamControllerPad eTargetPad,
                                    unsigned short usDurationMicroSec) = 0;

    // Set the override mode which is used to choose to use different
    // base/legacy bindings from your config file
    virtual void SetOverrideMode(const char *pchMode) = 0;
};

#define STEAMCONTROLLER_INTERFACE_VERSION "STEAMCONTROLLER_INTERFACE_VERSION"

// callbacks
#if defined(VALVE_CALLBACK_PACK_SMALL)
#pragma pack(push, 4)
#elif defined(VALVE_CALLBACK_PACK_LARGE)
#pragma pack(push, 8)
#else
#error isteamclient.h must be included
#endif

//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
/*
struct ControllerCallback_t
{
        enum { k_iCallback = k_iSteamControllerCallbacks + 1 };

};
*/

#pragma pack(pop)

#endif  // ISTEAMCONTROLLER_H