153 lines
5.2 KiB
C
153 lines
5.2 KiB
C
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/*
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THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
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END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
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ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
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IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
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SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
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FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
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CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
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AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
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COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
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*/
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#ifndef _JOY_H
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#define _JOY_H
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#include "types.h"
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#include "fix.h"
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// added October 24, 2000 20:40 Steven Mueller: more than 4 joysticks now
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#define MAX_JOY_DEVS 8
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#define JOY_1_BUTTON_A 1
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#define JOY_1_BUTTON_B 2
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#define JOY_2_BUTTON_A 4
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#define JOY_2_BUTTON_B 8
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#define JOY_ALL_BUTTONS (1+2+4+8)
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#define JOY_1_X_AXIS 1
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#define JOY_1_Y_AXIS 2
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#define JOY_2_X_AXIS 4
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#define JOY_2_Y_AXIS 8
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#define JOY_ALL_AXIS (1+2+4+8)
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#define JOY_SLOW_READINGS 1
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#define JOY_POLLED_READINGS 2
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#define JOY_BIOS_READINGS 4
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#define JOY_FRIENDLY_READINGS 8
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#define MAX_AXES 32
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#define MAX_BUTTONS 64
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#define JOY_NUM_AXES 4
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typedef struct joystick_device {
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int device_number;
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int version;
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int buffer;
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char num_buttons;
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char num_axes;
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} joystick_device;
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typedef struct joystick_axis {
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int value;
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int min_val;
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int center_val;
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int max_val;
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int joydev;
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} joystick_axis;
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typedef struct joystick_button {
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ubyte state;
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ubyte last_state;
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//changed 6/24/1999 to finally squish the timedown bug - Owen Evans
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fix timedown;
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//end changed - OE
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ubyte downcount;
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int num;
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int joydev;
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} joystick_button;
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//==========================================================================
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// This initializes the joy and does a "quick" calibration which
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// assumes the stick is centered and sets the minimum value to 0 and
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// the maximum value to 2 times the centered reading. Returns 0 if no
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// joystick was detected, 1 if everything is ok.
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// joy_init() is called.
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extern int joy_init();
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extern void joy_close();
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extern char joy_installed;
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extern char joy_present;
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extern int j_num_axes;
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extern int j_num_buttons;
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extern int joy_deadzone;
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extern joystick_device j_joystick[MAX_JOY_DEVS];
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extern joystick_axis j_axis[MAX_AXES];
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extern joystick_button j_button[MAX_BUTTONS];
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//==========================================================================
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// The following 3 routines can be used to zero in on better joy
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// calibration factors. To use them, ask the user to hold the stick
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// in either the upper left, lower right, or center and then have them
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// press a key or button and then call the appropriate one of these
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// routines, and it will read the stick and update the calibration factors.
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// Usually, assuming that the stick was centered when joy_init was
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// called, you really only need to call joy_set_lr, since the upper
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// left position is usually always 0,0 on most joys. But, the safest
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// bet is to do all three, or let the user choose which ones to set.
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extern void joy_set_cen();
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//==========================================================================
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// This reads the joystick. X and Y will be between -128 and 127.
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// Takes about 1 millisecond in the worst case when the stick
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// is in the lower right hand corner. Always returns 0,0 if no stick
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// is present.
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extern void joy_get_pos( int *x, int *y );
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//==========================================================================
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// This just reads the buttons and returns their status. When bit 0
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// is 1, button 1 is pressed, when bit 1 is 1, button 2 is pressed.
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extern int joy_get_btns();
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//==========================================================================
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// This returns the number of times a button went either down or up since
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// the last call to this function.
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extern int joy_get_button_up_cnt( int btn );
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extern int joy_get_button_down_cnt( int btn );
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//==========================================================================
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// This returns how long (in approximate milliseconds) that each of the
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// buttons has been held down since the last call to this function.
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// It is the total time... say you pressed it down for 3 ticks, released
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// it, and held it down for 6 more ticks. The time returned would be 9.
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extern fix joy_get_button_down_time( int btn );
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extern int j_Update_state ();
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extern int j_Get_joydev_axis_number (int all_axis_number);
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extern int j_Get_joydev_button_number (int all_button_number);
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extern ubyte joystick_read_raw_axis( ubyte mask, int * axis );
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extern void joy_flush();
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extern ubyte joy_get_present_mask();
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extern void joy_set_timer_rate(int max_value );
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extern int joy_get_timer_rate();
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extern int joy_get_button_state( int btn );
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extern void joy_get_cal_vals(int *axis_min, int *axis_center, int *axis_max);
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extern void joy_set_cal_vals(int *axis_min, int *axis_center, int *axis_max);
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extern int joy_get_scaled_reading( int raw, int axn );
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extern void joy_set_slow_reading( int flag );
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extern void joy_set_min (int axis_number, int value);
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extern void joy_set_center (int axis_number, int value);
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extern void joy_set_max (int axis_number, int value);
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#endif
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