key

key(code) -> is_pressed
key() -> is_any_pressed

Parameters

code : the key code to check (1..65), see the table below or type help keys in console.

Returns

pressed : a Boolean value which indicates whether or not the specified key is currently pressed.
is_any_pressed : If no keycode is specified, returns a Boolean value indicating if any key is pressed.

Keycodes:

Letters	Digits	Characters	Edits / Directions	Modifiers / Function Keys	Numeric Keypad
01 = A	27 = 0	37 = MINUS	50 = RETURN	62 = CAPSLOCK	79 = NUMPAD0
02 = B	28 = 1	38 = EQUALS	51 = BACKSPACE	63 = CTRL	80 = NUMPAD1
03 = C	29 = 2	39 = LEFTBRACKET	52 = DELETE	64 = SHIFT	81 = NUMPAD2
04 = D	30 = 3	40 = RIGHTBRACKET	53 = INSERT	65 = ALT	82 = NUMPAD3
05 = E	31 = 4	41 = BACKSLASH			83 = NUMPAD4
06 = F	32 = 5	42 = SEMICOLON	54 = PAGEUP	66 = ESC	84 = NUMPAD5
07 = G	33 = 6	43 = APOSTROPHE	55 = PAGEDOWN	67 = F1	85 = NUMPAD6
08 = H	34 = 7	44 = GRAVE	56 = HOME	68 = F2	86 = NUMPAD7
09 = I	35 = 8	45 = COMMA	57 = END	69 = F3	87 = NUMPAD8
10 = J	36 = 9	46 = PERIOD	58 = UP	70 = F4	88 = NUMPAD9
11 = K		47 = SLASH	59 = DOWN	71 = F5	89 = NUMPADPLUS
12 = L		48 = SPACE	59 = DOWN	72 = F6	90 = NUMPADMINUS
13 = M		49 = TAB	61 = RIGHT	73 = F7	91 = NUMPADMULTIPLY
14 = N				74 = F8	92 = NUMPADDIVIDE
15 = O				75 = F9	93 = NUMPADENTER
16 = P				76 = F10	94 = NUMPADPERIOD
17 = Q				77 = F11
18 = R				78 = F12
19 = S
20 = T
21 = U
22 = V
23 = W
24 = X
25 = Y
26 = Z

.-----------------------------------------------------------------------------------------|
| ESC |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |
.-----------------------------------------------------------------------------------------.  .----------------------.  .------------------------------.
|  `  |  1  |  2  |  3  |  4  |  5  |  6  |  7  |  8  |  9  |  0  |  -  |  =  |  Backsps  |  |  Ins  |  Home | PgUp |  | NumLck | NP/ | NP* |   NP-   |
|-----------------------------------------------------------------------------------------|  |----------------------|  |------------------------------|
|  Tab   |  Q  |  W  |  E  |  R  |  T  |  Y  |  U  |  I  |  O  |  P  |  [  |  ]  |   \    |  |  Del  |  End  | PgDn |  |   NP7  | NP8 | NP9 |   NP+   |
|-----------------------------------------------------------------------------------------|  '----------------------'  |--------------------|         |
|  CapsLck  |  A  |  S  |  D  |  F  |  G  |  H  |  J  |  K  |  L  |  ;  |  '  |    Enter  |                            |   NP4  | NP5 | NP6 |         |
|-----------------------------------------------------------------------------------------|          .-------.         |------------------------------|
|  Shift       |  Z  |  X  |  C  |  V  |  B  |  N  |  M  |  ,  |  .  |  /  |       Shift  |          |   Up  |         |   NP1  | NP2 | NP3 | NPEnter | 
|-----------------------------------------------------------------------------------------|  .----------------------.  |--------------------|         |
|  Ctrl  |  Alt  |                                                       |  Alt  |  Ctrl  |  |  Left |  Down | Rght |  |       NP0    | NP. |         |
'-----------------------------------------------------------------------------------------'  '----------------------'  '------------------------------'

Note: Esc, F7-F9 and F11 already are functional hotkeys in game.