Mercurial > sdl-ios-xcode
changeset 2348:dd32c95434f4 gsoc2008_iphone
Just the sysjoystick file for the iPhone accelerometer. It doesn't reveal anything under NDA, but I just wanted to make sure that adding files to the repository is working under XCode right now.
author | Holmes Futrell <hfutrell@umail.ucsb.edu> |
---|---|
date | Fri, 11 Jul 2008 00:54:04 +0000 |
parents | 1971045cbfc1 |
children | 0381047f2210 |
files | src/joystick/iphoneos/SDL_sysjoystick.m |
diffstat | 1 files changed, 125 insertions(+), 0 deletions(-) [+] |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/joystick/iphoneos/SDL_sysjoystick.m Fri Jul 11 00:54:04 2008 +0000 @@ -0,0 +1,125 @@ +/* + 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" + +/* This is the system specific header for the SDL joystick API */ + +#include "SDL_joystick.h" +#include "../SDL_sysjoystick.h" +#include "../SDL_joystick_c.h" +#import "SDLUIAccelerationDelegate.h" + +const char *accelerometerName = "iPhone accelerometer"; + +/* 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); +} + +/* 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; + } +} + +/* 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); + } + +} + +/* 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) +{ + + Sint16 orientation[3]; + [[SDLUIAccelerationDelegate sharedDelegate] getLastOrientation: orientation]; + + if ([[SDLUIAccelerationDelegate sharedDelegate] hasNewData]) { + + [[SDLUIAccelerationDelegate sharedDelegate] setHasNewData: NO]; + + SDL_PrivateJoystickAxis(joystick, 0, orientation[0]); + SDL_PrivateJoystickAxis(joystick, 1, orientation[1]); + SDL_PrivateJoystickAxis(joystick, 2, orientation[2]); + + } + + return; +} + +/* 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"); + + return; +} + +/* Function to perform any system-specific joystick related cleanup */ +void +SDL_SYS_JoystickQuit(void) +{ + return; +} +/* vi: set ts=4 sw=4 expandtab: */