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Just the sysjoystick file for the iPhone accelerometer. It doesn't re…
…veal anything under NDA, but I just wanted to make sure that adding files to the repository is working under XCode right now.
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Holmes Futrell
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Jul 11, 2008
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/* | ||
SDL - Simple DirectMedia Layer | ||
Copyright (C) 1997-2006 Sam Lantinga | ||
This library is free software; you can redistribute it and/or | ||
modify it under the terms of the GNU Lesser General Public | ||
License as published by the Free Software Foundation; either | ||
version 2.1 of the License, or (at your option) any later version. | ||
This library 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 | ||
Lesser General Public License for more details. | ||
You should have received a copy of the GNU Lesser General Public | ||
License along with this library; if not, write to the Free Software | ||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
Sam Lantinga | ||
slouken@libsdl.org | ||
*/ | ||
#include "SDL_config.h" | ||
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/* This is the system specific header for the SDL joystick API */ | ||
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#include "SDL_joystick.h" | ||
#include "../SDL_sysjoystick.h" | ||
#include "../SDL_joystick_c.h" | ||
#import "SDLUIAccelerationDelegate.h" | ||
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const char *accelerometerName = "iPhone accelerometer"; | ||
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/* Function to scan the system for joysticks. | ||
* This function should set SDL_numjoysticks to the number of available | ||
* joysticks. Joystick 0 should be the system default joystick. | ||
* It should return 0, or -1 on an unrecoverable fatal error. | ||
*/ | ||
int | ||
SDL_SYS_JoystickInit(void) | ||
{ | ||
SDL_numjoysticks = 1; | ||
return (1); | ||
} | ||
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/* Function to get the device-dependent name of a joystick */ | ||
const char * | ||
SDL_SYS_JoystickName(int index) | ||
{ | ||
switch(index) { | ||
case 0: | ||
return accelerometerName; | ||
default: | ||
SDL_SetError("No joystick available with that index"); | ||
return NULL; | ||
} | ||
} | ||
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/* Function to open a joystick for use. | ||
The joystick to open is specified by the index field of the joystick. | ||
This should fill the nbuttons and naxes fields of the joystick structure. | ||
It returns 0, or -1 if there is an error. | ||
*/ | ||
int | ||
SDL_SYS_JoystickOpen(SDL_Joystick * joystick) | ||
{ | ||
if (joystick->index == 0) { | ||
joystick->naxes = 3; | ||
joystick->nhats = 0; | ||
joystick->nballs = 0; | ||
joystick->nbuttons = 0; | ||
joystick->name = accelerometerName; | ||
[[SDLUIAccelerationDelegate sharedDelegate] startup]; | ||
return 0; | ||
} | ||
else { | ||
SDL_SetError("No joystick available with that index"); | ||
return (-1); | ||
} | ||
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} | ||
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/* Function to update the state of a joystick - called as a device poll. | ||
* This function shouldn't update the joystick structure directly, | ||
* but instead should call SDL_PrivateJoystick*() to deliver events | ||
* and update joystick device state. | ||
*/ | ||
void | ||
SDL_SYS_JoystickUpdate(SDL_Joystick * joystick) | ||
{ | ||
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Sint16 orientation[3]; | ||
[[SDLUIAccelerationDelegate sharedDelegate] getLastOrientation: orientation]; | ||
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if ([[SDLUIAccelerationDelegate sharedDelegate] hasNewData]) { | ||
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[[SDLUIAccelerationDelegate sharedDelegate] setHasNewData: NO]; | ||
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SDL_PrivateJoystickAxis(joystick, 0, orientation[0]); | ||
SDL_PrivateJoystickAxis(joystick, 1, orientation[1]); | ||
SDL_PrivateJoystickAxis(joystick, 2, orientation[2]); | ||
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} | ||
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return; | ||
} | ||
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/* Function to close a joystick after use */ | ||
void | ||
SDL_SYS_JoystickClose(SDL_Joystick * joystick) | ||
{ | ||
if (joystick->index == 0 && [[SDLUIAccelerationDelegate sharedDelegate] isRunning]) { | ||
[[SDLUIAccelerationDelegate sharedDelegate] shutdown]; | ||
} | ||
SDL_SetError("No joystick open with that index"); | ||
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return; | ||
} | ||
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/* Function to perform any system-specific joystick related cleanup */ | ||
void | ||
SDL_SYS_JoystickQuit(void) | ||
{ | ||
return; | ||
} | ||
/* vi: set ts=4 sw=4 expandtab: */ |