1 (* Copyright (C) DooM 2D:Forever Developers
3 * This program is free software: you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation, either version 3 of the License, or
6 * (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
27 e_MaxKbdKeys
= SDL_NUM_SCANCODES
;
33 e_MaxJoyKeys
= e_MaxJoyBtns
+ e_MaxJoyAxes
*2 + e_MaxJoyHats
*4;
35 e_MaxInputKeys
= e_MaxKbdKeys
+ e_MaxJoys
*e_MaxJoyKeys
- 1;
36 // $$$..$$$ - 321 Keyboard buttons/keys
37 // $$$..$$$ - 4*32 Joystick buttons
38 // $$$..$$$ - 4*4 Joystick axes (- and +)
39 // $$$..$$$ - 4*4 Joystick hats (L U R D)
41 // these are apparently used in g_gui and g_game and elsewhere
43 IK_ESCAPE
= SDL_SCANCODE_ESCAPE
;
44 IK_RETURN
= SDL_SCANCODE_RETURN
;
45 IK_KPRETURN
= SDL_SCANCODE_KP_ENTER
;
46 IK_ENTER
= SDL_SCANCODE_RETURN
;
47 IK_UP
= SDL_SCANCODE_UP
;
48 IK_KPUP
= SDL_SCANCODE_KP_8
;
49 IK_DOWN
= SDL_SCANCODE_DOWN
;
50 IK_KPDOWN
= SDL_SCANCODE_KP_2
;
51 IK_LEFT
= SDL_SCANCODE_LEFT
;
52 IK_KPLEFT
= SDL_SCANCODE_KP_4
;
53 IK_RIGHT
= SDL_SCANCODE_RIGHT
;
54 IK_KPRIGHT
= SDL_SCANCODE_KP_6
;
55 IK_DELETE
= SDL_SCANCODE_DELETE
;
56 IK_HOME
= SDL_SCANCODE_HOME
;
57 IK_KPHOME
= SDL_SCANCODE_KP_7
;
58 IK_INSERT
= SDL_SCANCODE_INSERT
;
59 IK_SPACE
= SDL_SCANCODE_SPACE
;
60 IK_CONTROL
= SDL_SCANCODE_LCTRL
;
61 IK_SHIFT
= SDL_SCANCODE_LSHIFT
;
62 IK_TAB
= SDL_SCANCODE_TAB
;
63 IK_PAGEUP
= SDL_SCANCODE_PAGEUP
;
64 IK_KPPAGEUP
= SDL_SCANCODE_KP_9
;
65 IK_PAGEDN
= SDL_SCANCODE_PAGEDOWN
;
66 IK_KPPAGEDN
= SDL_SCANCODE_KP_3
;
67 IK_F2
= SDL_SCANCODE_F2
;
68 IK_F3
= SDL_SCANCODE_F3
;
69 IK_F4
= SDL_SCANCODE_F4
;
70 IK_F5
= SDL_SCANCODE_F5
;
71 IK_F6
= SDL_SCANCODE_F6
;
72 IK_F7
= SDL_SCANCODE_F7
;
73 IK_F8
= SDL_SCANCODE_F8
;
74 IK_F9
= SDL_SCANCODE_F9
;
75 IK_F10
= SDL_SCANCODE_F10
;
76 IK_END
= SDL_SCANCODE_END
;
77 IK_KPEND
= SDL_SCANCODE_KP_1
;
78 IK_BACKSPACE
= SDL_SCANCODE_BACKSPACE
;
79 IK_BACKQUOTE
= SDL_SCANCODE_GRAVE
;
80 IK_GRAVE
= SDL_SCANCODE_GRAVE
;
81 IK_PAUSE
= SDL_SCANCODE_PAUSE
;
82 IK_Y
= SDL_SCANCODE_Y
;
83 IK_N
= SDL_SCANCODE_N
;
84 // TODO: think of something better than this shit
85 IK_LASTKEY
= SDL_NUM_SCANCODES
-1;
94 function e_InitInput(): Boolean;
95 procedure e_ReleaseInput();
96 procedure e_ClearInputBuffer();
97 function e_PollInput(): Boolean;
98 function e_KeyPressed(Key
: Word): Boolean;
99 function e_AnyKeyPressed(): Boolean;
100 function e_GetFirstKeyPressed(): Word;
101 function e_JoystickStateToString(mode
: Integer): String;
102 function e_JoyByHandle(handle
: Word): Integer;
103 function e_JoyButtonToKey(id
: Word; btn
: Byte): Word;
104 function e_JoyAxisToKey(id
: Word; ax
: Byte; dir
: Byte): Word;
105 function e_JoyHatToKey(id
: Word; hat
: Byte; dir
: Byte): Word;
106 procedure e_SetKeyState(key
: Word; state
: Integer);
109 {e_MouseInfo: TMouseInfo;}
110 e_EnableInput
: Boolean = False;
111 e_JoysticksAvailable
: Byte = 0;
112 e_JoystickDeadzones
: array [0..e_MaxJoys
-1] of Integer = (8192, 8192, 8192, 8192);
113 e_KeyNames
: array [0..e_MaxInputKeys
] of String;
120 KBRD_END
= e_MaxKbdKeys
;
122 JOYK_END
= JOYK_BEG
+ e_MaxJoyBtns
*e_MaxJoys
;
124 JOYA_END
= JOYA_BEG
+ e_MaxJoyAxes
*2*e_MaxJoys
;
126 JOYH_END
= JOYH_BEG
+ e_MaxJoyHats
*4*e_MaxJoys
;
131 Handle
: PSDL_Joystick
;
135 ButtBuf
: array [0..e_MaxJoyBtns
] of Boolean;
136 AxisBuf
: array [0..e_MaxJoyAxes
] of Integer;
137 HatBuf
: array [0..e_MaxJoyHats
] of array [HAT_LEFT
..HAT_DOWN
] of Boolean;
141 KeyBuffer
: array [0..e_MaxKbdKeys
] of Boolean;
142 Joysticks
: array of TJoystick
= nil;
144 function OpenJoysticks(): Byte;
150 k
:= Min(e_MaxJoys
, SDL_NumJoysticks());
155 joy
:= SDL_JoystickOpen(i
);
159 e_WriteLog('Input: Opened SDL joystick ' + IntToStr(i
) + ' as joystick ' + IntToStr(c
) + ':', MSG_NOTIFY
);
160 SetLength(Joysticks
, c
);
161 with Joysticks
[c
-1] do
165 Axes
:= Min(e_MaxJoyAxes
, SDL_JoystickNumAxes(joy
));
166 Buttons
:= Min(e_MaxJoyBtns
, SDL_JoystickNumButtons(joy
));
167 Hats
:= Min(e_MaxJoyHats
, SDL_JoystickNumHats(joy
));
168 e_WriteLog(' ' + IntToStr(Axes
) + ' axes, ' + IntToStr(Buttons
) + ' buttons, ' +
169 IntToStr(Hats
) + ' hats.', MSG_NOTIFY
);
176 procedure ReleaseJoysticks();
180 if (Joysticks
= nil) or (e_JoysticksAvailable
= 0) then Exit
;
181 for i
:= Low(Joysticks
) to High(Joysticks
) do
183 SDL_JoystickClose(Handle
);
184 SetLength(Joysticks
, 0);
187 function PollKeyboard(): Boolean;
194 Keys
:= SDL_GetKeyboardState(@NKeys
);
195 if (Keys
= nil) or (NKeys
< 1) then
197 for i
:= 0 to NKeys
do
198 KeyBuffer
[i
] := ((PByte(Cardinal(Keys
) + i
)^) <> 0);
199 for i
:= NKeys
to High(KeyBuffer
) do
200 KeyBuffer
[i
] := False;
203 function PollJoysticks(): Boolean;
209 if (Joysticks
= nil) or (e_JoysticksAvailable
= 0) then Exit
;
210 SDL_JoystickUpdate();
211 for j
:= Low(Joysticks
) to High(Joysticks
) do
214 for i
:= 0 to Buttons
do
215 ButtBuf
[i
] := SDL_JoystickGetButton(Handle
, i
) <> 0;
216 for i
:= 0 to Axes
do
217 AxisBuf
[i
] := SDL_JoystickGetAxis(Handle
, i
);
218 for i
:= 0 to Hats
do
220 hat
:= SDL_JoystickGetHat(Handle
, i
);
221 HatBuf
[i
, HAT_UP
] := LongBool(hat
and SDL_HAT_UP
);
222 HatBuf
[i
, HAT_DOWN
] := LongBool(hat
and SDL_HAT_DOWN
);
223 HatBuf
[i
, HAT_LEFT
] := LongBool(hat
and SDL_HAT_LEFT
);
224 HatBuf
[i
, HAT_RIGHT
] := LongBool(hat
and SDL_HAT_RIGHT
);
229 procedure GenerateKeyNames();
233 // keyboard key names
234 for i
:= 0 to IK_LASTKEY
do
235 e_KeyNames
[i
] := SDL_GetScancodeName(i
);
238 for j
:= 0 to e_MaxJoys
-1 do
240 k
:= JOYK_BEG
+ j
* e_MaxJoyBtns
;
242 for i
:= 0 to e_MaxJoyBtns
-1 do
243 e_KeyNames
[k
+ i
] := Format('JOY%d B%d', [j
, i
]);
244 k
:= JOYA_BEG
+ j
* e_MaxJoyAxes
* 2;
246 for i
:= 0 to e_MaxJoyAxes
-1 do
248 e_KeyNames
[k
+ i
*2 ] := Format('JOY%d A%d+', [j
, i
]);
249 e_KeyNames
[k
+ i
*2 + 1] := Format('JOY%d A%d-', [j
, i
]);
251 k
:= JOYH_BEG
+ j
* e_MaxJoyHats
* 4;
253 for i
:= 0 to e_MaxJoyHats
-1 do
255 e_KeyNames
[k
+ i
*4 ] := Format('JOY%d D%dL', [j
, i
]);
256 e_KeyNames
[k
+ i
*4 + 1] := Format('JOY%d D%dU', [j
, i
]);
257 e_KeyNames
[k
+ i
*4 + 2] := Format('JOY%d D%dR', [j
, i
]);
258 e_KeyNames
[k
+ i
*4 + 3] := Format('JOY%d D%dD', [j
, i
]);
263 function e_InitInput(): Boolean;
267 e_JoysticksAvailable
:= OpenJoysticks();
268 e_EnableInput
:= True;
274 procedure e_ReleaseInput();
277 e_JoysticksAvailable
:= 0;
280 procedure e_ClearInputBuffer();
284 for i
:= Low(KeyBuffer
) to High(KeyBuffer
) do
285 KeyBuffer
[i
] := False;
286 if (Joysticks
= nil) or (e_JoysticksAvailable
= 0) then
287 for i
:= Low(Joysticks
) to High(Joysticks
) do
289 for j
:= Low(Joysticks
[i
].ButtBuf
) to High(Joysticks
[i
].ButtBuf
) do
290 Joysticks
[i
].ButtBuf
[j
] := False;
291 for j
:= Low(Joysticks
[i
].AxisBuf
) to High(Joysticks
[i
].AxisBuf
) do
292 Joysticks
[i
].AxisBuf
[j
] := 0;
293 for j
:= Low(Joysticks
[i
].HatBuf
) to High(Joysticks
[i
].HatBuf
) do
294 for d
:= Low(Joysticks
[i
].HatBuf
[j
]) to High(Joysticks
[i
].HatBuf
[j
]) do
295 Joysticks
[i
].HatBuf
[j
, d
] := False;
299 function e_PollInput(): Boolean;
303 kb
:= PollKeyboard();
304 js
:= PollJoysticks();
309 function e_KeyPressed(Key
: Word): Boolean;
314 if (Key
= IK_INVALID
) or (Key
= 0) then Exit
;
316 if (Key
< KBRD_END
) then
317 begin // Keyboard buttons/keys
318 Result
:= KeyBuffer
[Key
];
321 else if (Key
>= JOYK_BEG
) and (Key
< JOYK_END
) then
322 begin // Joystick buttons
323 JoyI
:= (Key
- JOYK_BEG
) div e_MaxJoyBtns
;
324 if JoyI
>= e_JoysticksAvailable
then
328 Key
:= (Key
- JOYK_BEG
) mod e_MaxJoyBtns
;
329 Result
:= Joysticks
[JoyI
].ButtBuf
[Key
];
333 else if (Key
>= JOYA_BEG
) and (Key
< JOYA_END
) then
334 begin // Joystick axes
335 JoyI
:= (Key
- JOYA_BEG
) div (e_MaxJoyAxes
*2);
336 if JoyI
>= e_JoysticksAvailable
then
340 Key
:= (Key
- JOYA_BEG
) mod (e_MaxJoyAxes
*2);
342 if dir
= AX_MINUS
then
343 Result
:= Joysticks
[JoyI
].AxisBuf
[Key
div 2] < -e_JoystickDeadzones
[JoyI
]
345 Result
:= Joysticks
[JoyI
].AxisBuf
[Key
div 2] > e_JoystickDeadzones
[JoyI
]
349 else if (Key
>= JOYH_BEG
) and (Key
< JOYH_END
) then
350 begin // Joystick hats
351 JoyI
:= (Key
- JOYH_BEG
) div (e_MaxJoyHats
*4);
352 if JoyI
>= e_JoysticksAvailable
then
356 Key
:= (Key
- JOYH_BEG
) mod (e_MaxJoyHats
*4);
358 Result
:= Joysticks
[JoyI
].HatBuf
[Key
div 4, dir
];
363 procedure e_SetKeyState(key
: Word; state
: Integer);
367 if (Key
= IK_INVALID
) or (Key
= 0) then Exit
;
369 if (Key
< KBRD_END
) then
370 begin // Keyboard buttons/keys
371 keyBuffer
[key
] := (state
<> 0);
374 else if (Key
>= JOYK_BEG
) and (Key
< JOYK_END
) then
375 begin // Joystick buttons
376 JoyI
:= (Key
- JOYK_BEG
) div e_MaxJoyBtns
;
377 if JoyI
>= e_JoysticksAvailable
then
381 Key
:= (Key
- JOYK_BEG
) mod e_MaxJoyBtns
;
382 Joysticks
[JoyI
].ButtBuf
[Key
] := (state
<> 0);
386 else if (Key
>= JOYA_BEG
) and (Key
< JOYA_END
) then
387 begin // Joystick axes
388 JoyI
:= (Key
- JOYA_BEG
) div (e_MaxJoyAxes
*2);
389 if JoyI
>= e_JoysticksAvailable
then
393 Key
:= (Key
- JOYA_BEG
) mod (e_MaxJoyAxes
*2);
394 Joysticks
[JoyI
].AxisBuf
[Key
div 2] := state
;
398 else if (Key
>= JOYH_BEG
) and (Key
< JOYH_END
) then
399 begin // Joystick hats
400 JoyI
:= (Key
- JOYH_BEG
) div (e_MaxJoyHats
*4);
401 if JoyI
>= e_JoysticksAvailable
then
405 Key
:= (Key
- JOYH_BEG
) mod (e_MaxJoyHats
*4);
407 Joysticks
[JoyI
].HatBuf
[Key
div 4, dir
] := (state
<> 0);
412 function e_AnyKeyPressed(): Boolean;
418 for k
:= 1 to e_MaxInputKeys
do
419 if e_KeyPressed(k
) then
426 function e_GetFirstKeyPressed(): Word;
430 Result
:= IK_INVALID
;
432 for k
:= 1 to e_MaxInputKeys
do
433 if e_KeyPressed(k
) then
440 ////////////////////////////////////////////////////////////////////////////////
442 function e_JoystickStateToString(mode
: Integer): String;
447 function e_JoyByHandle(handle
: Word): Integer;
452 if Joysticks
= nil then Exit
;
453 for i
:= Low(Joysticks
) to High(Joysticks
) do
454 if Joysticks
[i
].ID
= handle
then
461 function e_JoyButtonToKey(id
: Word; btn
: Byte): Word;
464 if id
>= Length(Joysticks
) then Exit
;
465 Result
:= JOYK_BEG
+ id
*e_MaxJoyBtns
+ btn
;
468 function e_JoyAxisToKey(id
: Word; ax
: Byte; dir
: Byte): Word;
471 if id
>= Length(Joysticks
) then Exit
;
472 Result
:= JOYA_BEG
+ id
*e_MaxJoyAxes
*2 + ax
*2 + dir
;
475 function e_JoyHatToKey(id
: Word; hat
: Byte; dir
: Byte): Word;
478 if id
>= Length(Joysticks
) then Exit
;
479 Result
:= JOYH_BEG
+ id
*e_MaxJoyHats
*4 + hat
*4 + dir
;