blame: source/code/joypad.cpp

/*

joypad.cpp - Enables joypad support

Copyright (C) 2005 Poul Sander

    This program is free software; you can redistribute it and/or modify

    it under the terms of the GNU General Public License as published by

    the Free Software Foundation; either version 2 of the License, or

    (at your option) any later version.

    This program is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License

    along with this program; if not, write to the Free Software

    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    Poul Sander

    Rævehøjvej 36, V. 1111

    2800 Kgs. Lyngby

    DENMARK

    blockattack@poulsander.com

*/

#include "joypad.h"

bool Joypad_init()

{

    if (0==SDL_InitSubSystem(SDL_INIT_JOYSTICK))

        return true;

    else

        return false;

}

Joypad_status Joypad_getStatus(SDL_Joystick *joystick)

{

    Joypad_status status;

    for (int i=0; i<NRofPADS; i++)

    {

        //cout << SDL_JoystickNumAxes(joystick) << endl;

        if (i*2>=SDL_JoystickNumAxes(joystick))

        {

            status.padDown[i]=false;

            status.padUp[i] = false;

            status.padLeft[i] = false;

            status.padRight[i] = false;

        }

        else

        {

            //cout << SDL_JoystickGetAxis(joystick,i*2+1)<< endl;

            if (SDL_JoystickGetAxis(joystick,i*2)<(-8000))

                status.padLeft[i]=1;

            else

                status.padLeft[i]=0;

            if (SDL_JoystickGetAxis(joystick,i*2)>(8000))

                status.padRight[i]=1;

            else

                status.padRight[i]=0;

            if (SDL_JoystickGetAxis(joystick,i*2+1)<(-8000))

                status.padUp[i]=1;

            else

                status.padUp[i]=0;

            if (SDL_JoystickGetAxis(joystick,i*2+1)>(8000))

                status.padDown[i]=1;

            else

                status.padDown[i]=0;

        }

    }//NRofPADS

    for (int i=0; i<NRofBUTTONS; i++)

    {

        if (i>=SDL_JoystickNumButtons(joystick))

            status.button[i]=false;

        else

            if (1==SDL_JoystickGetButton(joystick,i))

                status.button[i] = true;

            else

                status.button[i] = false;

    }

    return status;

}

Joypad::Joypad()

{

    up=false;

    down=false;

    left=false;

    right=false;

    but1=false;

    but2=false;

    upREL=true;

    downREL=true;

    leftREL=true;

    rightREL=true;

    but1REL=true;

    but2REL=true;

    int joynum = 0;

    while ((SDL_JoystickOpened(joynum))&&(joynum<Joypad_number))

        joynum++;

    if (joynum>=Joypad_number)

        working = false;

    else

    {

        joystick=SDL_JoystickOpen(joynum);

        if (joystick==NULL)

            working =false;

        else

            working=true;

    }

}

Joypad::~Joypad()

{

    SDL_JoystickClose(joystick);

}

void Joypad::update()

{

    SDL_JoystickUpdate();

    Joypad_status status = Joypad_getStatus(joystick);

    if ((upREL)&&((status.padUp[0])||(status.padUp[1])||(status.padUp[2])||(status.padUp[3])))

    {

        up=true;

        upREL=false;

    }

    else

        up=false;

    if ((downREL)&&((status.padDown[0])||(status.padDown[1])||(status.padDown[2])||(status.padDown[3])))

    {

        down=true;

        downREL=false;

    }

    else

        down=false;

    if ((leftREL)&&((status.padLeft[0])||(status.padLeft[1])||(status.padLeft[2])||(status.padLeft[3])))

    {

        left=true;

        leftREL=false;

    }

    else

        left=false;

    if ((rightREL)&&((status.padRight[0])||(status.padRight[1])||(status.padRight[2])||(status.padRight[3])))

    {

        right=true;

        rightREL=false;

    }

    else

        right=false;

    if ((but1REL)&&((status.button[0])||(status.button[2])||(status.button[4])||(status.button[6])))

    {

        but1=true;

        but1REL=false;

    }

    else

        but1=false;

    if ((but2REL)&&((status.button[1])||(status.button[3])||(status.button[5])||(status.button[7])))

    {

        but2=true;

        but2REL=false;

    }

    else

        but2=false;

    //Now testing for up

    if (!((status.padUp[0])||(status.padUp[1])||(status.padUp[2])||(status.padUp[3])))

        upREL = true;

    if (!((status.padDown[0])||(status.padDown[1])||(status.padDown[2])||(status.padDown[3])))

        downREL = true;

    if (!((status.padLeft[0])||(status.padLeft[1])||(status.padLeft[2])||(status.padLeft[3])))

        leftREL = true;

    if (!((status.padRight[0])||(status.padRight[1])||(status.padRight[2])||(status.padRight[3])))

        rightREL= true;

    if (!((status.button[0])||(status.button[2])||(status.button[4])||(status.button[6])))

        but1REL = true;

    if (!((status.button[1])||(status.button[3])||(status.button[5])||(status.button[7])))

        but2REL = true;

}