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cc65/include/joystick.h

110 lines
5.0 KiB
C

/*****************************************************************************/
/* */
/* joystick.h */
/* */
/* Read the joystick on systems that support it */
/* */
/* */
/* */
/* (C) 1998-2011, Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#ifndef _JOYSTICK_H
#define _JOYSTICK_H
#include <target.h>
/*****************************************************************************/
/* Definitions */
/*****************************************************************************/
/* Error codes */
#define JOY_ERR_OK 0 /* No error */
#define JOY_ERR_NO_DRIVER 1 /* No driver available */
#define JOY_ERR_CANNOT_LOAD 2 /* Error loading driver */
#define JOY_ERR_INV_DRIVER 3 /* Invalid driver */
#define JOY_ERR_NO_DEVICE 4 /* Device (hardware) not found */
/* Argument for the joy_read function */
#define JOY_1 0
#define JOY_2 1
/* Macros that evaluate the return code of joy_read */
#define JOY_UP(v) ((v) & JOY_UP_MASK)
#define JOY_DOWN(v) ((v) & JOY_DOWN_MASK)
#define JOY_LEFT(v) ((v) & JOY_LEFT_MASK)
#define JOY_RIGHT(v) ((v) & JOY_RIGHT_MASK)
#define JOY_BTN_1(v) ((v) & JOY_BTN_1_MASK) /* Universally available */
#define JOY_BTN_2(v) ((v) & JOY_BTN_2_MASK) /* Second button if available */
#define JOY_BTN_3(v) ((v) & JOY_BTN_3_MASK) /* Third button if available */
#define JOY_BTN_4(v) ((v) & JOY_BTN_4_MASK) /* Fourth button if available */
/* The name of the standard joystick driver for a platform */
extern const char joy_stddrv[];
/* The address of the static standard joystick driver for a platform */
extern const void joy_static_stddrv[];
/*****************************************************************************/
/* Functions */
/*****************************************************************************/
unsigned char __fastcall__ joy_load_driver (const char* driver);
/* Load and install a joystick driver. Return an error code. */
unsigned char joy_unload (void);
/* Uninstall, then unload the currently loaded driver. */
unsigned char __fastcall__ joy_install (const void* driver);
/* Install an already loaded driver. Return an error code. */
unsigned char joy_uninstall (void);
/* Uninstall the currently loaded driver and return an error code.
** Note: This call does not free allocated memory.
*/
unsigned char joy_count (void);
/* Return the number of joysticks supported by the driver */
unsigned char __fastcall__ joy_read (unsigned char joystick);
/* Read a particular joystick */
/* End of joystick.h */
#endif