blame: source/code/joypad.cpp

/*

===========================================================================

blockattack - Block Attack - Rise of the Blocks

Copyright (C) 2005-2012 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, see http://www.gnu.org/licenses/

Source information and contacts persons can be found at

http://blockattack.sf.net

===========================================================================

*/

#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()

{

	if(working)

		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;

}