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Diffstat (limited to 'arm9/source/touchwrap.c')
-rw-r--r-- | arm9/source/touchwrap.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/arm9/source/touchwrap.c b/arm9/source/touchwrap.c new file mode 100644 index 0000000..0115f77 --- /dev/null +++ b/arm9/source/touchwrap.c @@ -0,0 +1,55 @@ +/* + ds48 - Nintendo DS ZX Spectrum emulator. + + Copyright (C) 2007 Ian Cowburn <ianc@noddybox.co.uk> + + 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. + + $Id$ +*/ + +#include <nds.h> +#include <stdlib.h> + +#include "touchwrap.h" +#include "config.h" + +/* ---------------------------------------- PUBLIC INTERFACES +*/ +int AllowTouch(touchPosition *tp) +{ + static touchPosition last; + int16 dx; + int16 dy; + int res; + + *tp = touchReadXY(); + + if (DS48_Config[DS48_AVERAGE_TOUCHSCREEN]) + { + dx = last.px - tp->px; + dy = last.py - tp->py; + + res = (abs(dx) < 5 && abs(dy) < 5); + } + else + { + res = TRUE; + } + + last = *tp; + + return res; +} |