This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
/
SDL_sysjoystick.c
185 lines (159 loc) · 5.06 KB
/
SDL_sysjoystick.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
/*
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: SDL_sysjoystick.c,v 1.2 2001/04/26 16:50:17 hercules Exp $";
#endif
#include "SDL_config.h"
#ifdef SDL_JOYSTICK_NDS
/* This is the system specific header for the SDL joystick API */
#include <nds.h>
//#include <nds/registers_alt.h>
#include <stdio.h> /* For the definition of NULL */
#include "SDL_error.h"
#include "SDL_events.h"
#include "SDL_joystick.h"
#include "SDL_sysjoystick.h"
#include "SDL_joystick_c.h"
#include "../../video/nds/SDL_ndsevents_c.h"
/* 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;
/* keysInit();*/
return (1);
}
/* Function to get the device-dependent name of a joystick */
const char *
SDL_SYS_JoystickName(int index)
{
if (!index)
return "NDS builtin joypad";
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)
{
joystick->nbuttons = 8;
joystick->nhats = 0;
joystick->nballs = 0;
joystick->naxes = 2;
return 0;
}
/* 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)
{
u32 keysd, keysu;
int magnitude = 16384;
scanKeys();
keysd = keysDown();
keysu = keysUp();
if ((keysd & KEY_UP)) {
SDL_PrivateJoystickAxis(joystick, 1, -magnitude);
}
if ((keysd & KEY_DOWN)) {
SDL_PrivateJoystickAxis(joystick, 1, magnitude);
}
if ((keysd & KEY_LEFT)) {
SDL_PrivateJoystickAxis(joystick, 0, -magnitude);
}
if ((keysd & KEY_RIGHT)) {
SDL_PrivateJoystickAxis(joystick, 0, magnitude);
}
if ((keysu & (KEY_UP|KEY_DOWN))) {
SDL_PrivateJoystickAxis(joystick, 1, 0);
}
if ((keysu & (KEY_LEFT|KEY_RIGHT))) {
SDL_PrivateJoystickAxis(joystick, 0, 0);
}
if ((keysd & KEY_A)) {
SDL_PrivateJoystickButton(joystick, 0, SDL_PRESSED);
} if ((keysd & KEY_B)) {
SDL_PrivateJoystickButton(joystick, 1, SDL_PRESSED);
} if ((keysd & KEY_X)) {
SDL_PrivateJoystickButton(joystick, 2, SDL_PRESSED);
} if ((keysd & KEY_Y)) {
SDL_PrivateJoystickButton(joystick, 3, SDL_PRESSED);
}
if ((keysd & KEY_L)) {
SDL_PrivateJoystickButton(joystick, 4, SDL_PRESSED);
} if ((keysd & KEY_R)) {
SDL_PrivateJoystickButton(joystick, 5, SDL_PRESSED);
}
if ((keysd & KEY_SELECT)) {
SDL_PrivateJoystickButton(joystick, 6, SDL_PRESSED);
} if ((keysd & KEY_START)) {
SDL_PrivateJoystickButton(joystick, 7, SDL_PRESSED);
}
if ((keysu & KEY_A)) {
SDL_PrivateJoystickButton(joystick, 0, SDL_RELEASED);
} if ((keysu & KEY_B)) {
SDL_PrivateJoystickButton(joystick, 1, SDL_RELEASED);
} if ((keysu & KEY_X)) {
SDL_PrivateJoystickButton(joystick, 2, SDL_RELEASED);
} if ((keysu & KEY_Y)) {
SDL_PrivateJoystickButton(joystick, 3, SDL_RELEASED);
}
if ((keysu & KEY_L)) {
SDL_PrivateJoystickButton(joystick, 4, SDL_RELEASED);
} if ((keysu & KEY_R)) {
SDL_PrivateJoystickButton(joystick, 5, SDL_RELEASED);
}
if ((keysu & KEY_SELECT)) {
SDL_PrivateJoystickButton(joystick, 6, SDL_RELEASED);
} if ((keysu & KEY_START)) {
SDL_PrivateJoystickButton(joystick, 7, SDL_RELEASED);
}}
/* Function to close a joystick after use */
void
SDL_SYS_JoystickClose(SDL_Joystick * joystick)
{
}
/* Function to perform any system-specific joystick related cleanup */
void
SDL_SYS_JoystickQuit(void)
{
}
#endif /* SDL_JOYSTICK_NDS */