Mercurial > sdl-ios-xcode
changeset 2510:e6ad7e678fca gsoc2008_force_feedback
Implemented SDL_HAPTIC_CARTESIAN on linux.
author | Edgar Simo <bobbens@gmail.com> |
---|---|
date | Wed, 09 Jul 2008 18:23:54 +0000 |
parents | 3b54b3a97046 |
children | f12ae0bae468 |
files | src/haptic/linux/SDL_syshaptic.c |
diffstat | 1 files changed, 10 insertions(+), 2 deletions(-) [+] |
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--- a/src/haptic/linux/SDL_syshaptic.c Wed Jul 09 17:06:54 2008 +0000 +++ b/src/haptic/linux/SDL_syshaptic.c Wed Jul 09 18:23:54 2008 +0000 @@ -38,6 +38,11 @@ #include <linux/limits.h> #include <string.h> #include <errno.h> +#include <math.h> + +#ifndef M_PI +# define M_PI 3.14159265358979323846 +#endif #define MAX_HAPTICS 32 @@ -338,6 +343,7 @@ SDL_SYS_ToDirection( SDL_HapticDirection * dir ) { Uint32 tmp; + float f; switch (dir->type) { case SDL_HAPTIC_POLAR: @@ -346,8 +352,10 @@ return (Uint16) tmp; break; case SDL_HAPTIC_CARTESIAN: - /* TODO implement cartesian for linux since it's not supported - * by driver */ + f = atan2(dir->dir[0], dir->dir[1]); + tmp = (int)(f*18000./M_PI) % 36000; + tmp = (tmp * 0xFFFF) / 36000; + return (Uint16) tmp; break; default: