Fix DrawHLinesExplosions setting invalid map pixels if called at wrap world edge
This caused an errror message after the game when using hammer or pickhammer at wrap world edge.
/*
* Hedgewars, a free turn based strategy game
* Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@gmail.com>
*
* 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; version 2 of the License
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef SDLKEYS_H
#define SDLKEYS_H
extern char sdlkeys[1024][2][128];
extern char xb360buttons[10][128];
extern char xbox360axes[10][128];
extern char xb360dpad[128];
extern char controlleraxis[128];
extern char controllerbutton[128];
extern char controllerhat[128];
extern char controllerup[128];
extern char controllerdown[128];
extern char controllerleft[128];
extern char controllerright[128];
#endif