Mercurial > sdl-ios-xcode
view include/SDL_joystick.h @ 172:37e3ca9254c7
Date: Sat, 8 Sep 2001 04:42:23 +0200
From: Max Horn <max@quendi.de>
Subject: SDL/OSX: Joystick; Better key handling
I just finished implementing improved keyhandling for OS X (in fact
the code should be easily ported to the "normal" MacOS part of SDL, I
just had no chance yet). Works like this:
First init the mapping table statically like before. Them, it queries
the OS for the "official" key table, then iterates over all 127
scancode and gets the associates ascii code. It ignores everythng
below 32 (has to, as it would lead to many problems if we did not...
e.g. both ESC and NUM LOCk produce an ascii code 27 on my keyboard),
and all stuff above 127 is mapped to SDLK_WORLD_* simply in the order
it is encountered.
In addition, caps lock is now working, too.
The code work flawless for me, but since I only have one keyboard, I
may have not encountered some serious problem... but I am pretty
confident that it is better than the old code in most cases.
The joystick driver works fine for me, too. I think it can be added
to CVS already. It would simply be helpful if more people would test
it. Hm, I wonder if Maelstrom or GLTron has Joystick support? That
would be a wonderful test application :)
I also took the liberty of modifying some text files like BUGS,
README.CVS, README.MacOSX (which now contains the OS X docs I long
promised)
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 11 Sep 2001 19:00:18 +0000 |
parents | 74212992fb08 |
children | b8688cfdc232 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@devolution.com */ #ifdef SAVE_RCSID static char rcsid = "@(#) $Id$"; #endif /* Include file for SDL joystick event handling */ #ifndef _SDL_joystick_h #define _SDL_joystick_h #include "SDL_types.h" #include "begin_code.h" /* Set up for C function definitions, even when using C++ */ #ifdef __cplusplus extern "C" { #endif /* In order to use these functions, SDL_Init() must have been called with the SDL_INIT_JOYSTICK flag. This causes SDL to scan the system for joysticks, and load appropriate drivers. */ /* The joystick structure used to identify an SDL joystick */ struct _SDL_Joystick; typedef struct _SDL_Joystick SDL_Joystick; /* Function prototypes */ /* * Count the number of joysticks attached to the system */ extern DECLSPEC int SDL_NumJoysticks(void); /* * Get the implementation dependent name of a joystick. * This can be called before any joysticks are opened. * If no name can be found, this function returns NULL. */ extern DECLSPEC const char *SDL_JoystickName(int device_index); /* * Open a joystick for use - the index passed as an argument refers to * the N'th joystick on the system. This index is the value which will * identify this joystick in future joystick events. * * This function returns a joystick identifier, or NULL if an error occurred. */ extern DECLSPEC SDL_Joystick *SDL_JoystickOpen(int device_index); /* * Returns 1 if the joystick has been opened, or 0 if it has not. */ extern DECLSPEC int SDL_JoystickOpened(int device_index); /* * Get the device index of an opened joystick. */ extern DECLSPEC int SDL_JoystickIndex(SDL_Joystick *joystick); /* * Get the number of general axis controls on a joystick */ extern DECLSPEC int SDL_JoystickNumAxes(SDL_Joystick *joystick); /* * Get the number of trackballs on a joystick * Joystick trackballs have only relative motion events associated * with them and their state cannot be polled. */ extern DECLSPEC int SDL_JoystickNumBalls(SDL_Joystick *joystick); /* * Get the number of POV hats on a joystick */ extern DECLSPEC int SDL_JoystickNumHats(SDL_Joystick *joystick); /* * Get the number of buttons on a joystick */ extern DECLSPEC int SDL_JoystickNumButtons(SDL_Joystick *joystick); /* * Update the current state of the open joysticks. * This is called automatically by the event loop if any joystick * events are enabled. */ extern DECLSPEC void SDL_JoystickUpdate(void); /* * Enable/disable joystick event polling. * If joystick events are disabled, you must call SDL_JoystickUpdate() * yourself and check the state of the joystick when you want joystick * information. * The state can be one of SDL_QUERY, SDL_ENABLE or SDL_IGNORE. */ extern DECLSPEC int SDL_JoystickEventState(int state); /* * Get the current state of an axis control on a joystick * The state is a value ranging from -32768 to 32767. * The axis indices start at index 0. */ extern DECLSPEC Sint16 SDL_JoystickGetAxis(SDL_Joystick *joystick, int axis); /* * Get the current state of a POV hat on a joystick * The return value is one of the following positions: */ #define SDL_HAT_CENTERED 0x00 #define SDL_HAT_UP 0x01 #define SDL_HAT_RIGHT 0x02 #define SDL_HAT_DOWN 0x04 #define SDL_HAT_LEFT 0x08 #define SDL_HAT_RIGHTUP (SDL_HAT_RIGHT|SDL_HAT_UP) #define SDL_HAT_RIGHTDOWN (SDL_HAT_RIGHT|SDL_HAT_DOWN) #define SDL_HAT_LEFTUP (SDL_HAT_LEFT|SDL_HAT_UP) #define SDL_HAT_LEFTDOWN (SDL_HAT_LEFT|SDL_HAT_DOWN) /* * The hat indices start at index 0. */ extern DECLSPEC Uint8 SDL_JoystickGetHat(SDL_Joystick *joystick, int hat); /* * Get the ball axis change since the last poll * This returns 0, or -1 if you passed it invalid parameters. * The ball indices start at index 0. */ extern DECLSPEC int SDL_JoystickGetBall(SDL_Joystick *joystick, int ball, int *dx, int *dy); /* * Get the current state of a button on a joystick * The button indices start at index 0. */ extern DECLSPEC Uint8 SDL_JoystickGetButton(SDL_Joystick *joystick, int button); /* * Close a joystick previously opened with SDL_JoystickOpen() */ extern DECLSPEC void SDL_JoystickClose(SDL_Joystick *joystick); /* Ends C function definitions when using C++ */ #ifdef __cplusplus } #endif #include "close_code.h" #endif /* _SDL_joystick_h */