keymap for "nextweapon/wheel down"

buzzwall · February 9, 2021

[Version2.08 File thedarkmod.x64

Ubuntu 20.10

In the training mission, on my very first task, I'm to press the "wheel down" button. to turn the page.

I have tried pushing and rolling my mouse button.

Looking into DarkModKeybinds.cfg I don't see 'wheel' or 'next'.

I am not an experienced gamer so...

Edited February 9, 2021 by buzzwall

Dragofer · February 9, 2021

I can see the following lines at the bottom of my DarkModKeybinds.cfg:

bind "MWHEELDOWN" "_impulse47"
bind "MWHEELUP" "_impulse48"

Inserting those should bind weapon scrolling and page turning to the mouse wheel.

buzzwall · February 9, 2021

Ah! Great.

What is the meaning of '_impulse' : is that a synonym for keycode or something like that? How can I map from 'impulse' values to keycodes or other types of user input events?

Edited February 9, 2021 by buzzwall

HMart · February 9, 2021

A "impulse" is just a key that you press and even still pressed, does its job once, a "button" is a key that you press and it repeats its job while pressed.

Dragofer · February 9, 2021

I'd add that an impulse is a one-time command in the game, i.e. select the next item in the inventory. A keyboard key can be bound so that it triggers such an event.

Slightly confusing that the continuous form of "impulse" is called "button" (i.e. move forward). Both are assigned to keyboard keys.

Maybe a list of all available impulses and buttons in the engine can be found somewhere in the source code.

buzzwall · February 10, 2021

10 hours ago, Dragofer said:

I'd add that an impulse is a one-time command in the game, i.e. select the next item in the inventory. A keyboard key can be bound so that it triggers such an event.

Slightly confusing that the continuous form of "impulse" is called "button" (i.e. move forward). Both are assigned to keyboard keys.

Maybe a list of all available impulses and buttons in the engine can be found somewhere in the source code.

./framework/KeyInput.cpp *looks to be* handling some transformation between system keycodes and application keycodes but it's going to take me some figuring to sort it out. I haven't looked at c++ for over 20 years. Maybe you can explain it, point me to an explanation, or if I get it figured out I'll post it here.

Dragofer · February 10, 2021

I've found a translation of impulse & button names in UsercmdGen.cpp, with the outwardly visible name (like in DarkmodKeybinds.cfg) on the left and the internal name on the right. Not all impulses have given names, since some are for engine internal things like showing pathfinding areas.

userCmdString_t	userCmdStrings[] = {
	// self-explanatory names
	{ "_jump",			UB_UP },
	{ "_parry",			UB_PARRY_MANIPULATE },
	{ "_creep",			UB_CREEP },

	{ "_weapon0",		UB_WEAPON0 },
	{ "_weapon1",		UB_WEAPON1 },
	{ "_weapon2",		UB_WEAPON2 },
	{ "_weapon3",		UB_WEAPON3 },
	{ "_weapon4",		UB_WEAPON4 },
	{ "_weapon5",		UB_WEAPON5 },
	{ "_weapon6",		UB_WEAPON6 },
	{ "_weapon7",		UB_WEAPON7 },
	{ "_weapon8",		UB_WEAPON8 },
	{ "_weapon9",		UB_WEAPON9 },
	{ "_weapon10",		UB_WEAPON10 },
	{ "_weapon11",		UB_WEAPON11 },
	{ "_weapon12",		UB_WEAPON12 },
	{ "_reload",			UB_RELOAD },
	{ "_weapon_next",	UB_WEAPON_NEXT },
	{ "_weapon_prev",	UB_WEAPON_PREV },
	{ "_ready",			UB_READY },
	{ "_center_view",	UB_CENTER_VIEW },
	{ "_objectives",		UB_OBJECTIVES },
	{ "_crouch",			UB_CROUCH },
	{ "_mantle",			UB_MANTLE },
	{ "_inventory_grid",	UB_INVENTORY_GRID },
	{ "_frob",			UB_FROB },
	{ "_lean_forward",	UB_LEAN_FORWARD },
	{ "_lean_left",		UB_LEAN_LEFT },
	{ "_lean_right",		UB_LEAN_RIGHT },
	{ "_inventory_prev",	UB_INVENTORY_PREV },
	{ "_inventory_next",	UB_INVENTORY_NEXT },
	{ "_inventory_group_prev", UB_INVENTORY_GROUP_PREV },
	{ "_inventory_group_next", UB_INVENTORY_GROUP_NEXT },
	{ "_inventory_use",	UB_INVENTORY_USE },
	{ "_inventory_drop",	UB_INVENTORY_DROP },

	// legacy names
	{ "_moveUp",		UB_UP },
	{ "_moveDown",		UB_DOWN },
	{ "_left",			UB_LEFT },
	{ "_right",			UB_RIGHT },
	{ "_forward",		UB_FORWARD },
	{ "_back",			UB_BACK },
	{ "_lookUp",		UB_LOOKUP },
	{ "_lookDown",		UB_LOOKDOWN },
	{ "_strafe",		UB_STRAFE },
	{ "_moveLeft",		UB_MOVELEFT },
	{ "_moveRight",		UB_MOVERIGHT },

	{ "_attack",		UB_ATTACK },
	{ "_speed",			UB_SPEED },
	{ "_zoom",			UB_PARRY_MANIPULATE },
	{ "_showScores",	UB_SHOWSCORES },
	{ "_mlook",			UB_MLOOK },

	{ "_button0",		UB_BUTTON0 },
	{ "_button1",		UB_BUTTON1 },
	{ "_button2",		UB_BUTTON2 },
	{ "_button3",		UB_BUTTON3 },
	{ "_button4",		UB_BUTTON4 },
	{ "_button5",		UB_CREEP },
	{ "_button6",		UB_BUTTON6 },
	{ "_button7",		UB_BUTTON7 },

	{ "_impulse0",		UB_WEAPON0 },
	{ "_impulse1",		UB_WEAPON1 },
	{ "_impulse2",		UB_WEAPON2 },
	{ "_impulse3",		UB_WEAPON3 },
	{ "_impulse4",		UB_WEAPON4 },
	{ "_impulse5",		UB_WEAPON5 },
	{ "_impulse6",		UB_WEAPON6 },
	{ "_impulse7",		UB_WEAPON7 },
	{ "_impulse8",		UB_WEAPON8 },
	{ "_impulse9",		UB_WEAPON9 },
	{ "_impulse10",		UB_WEAPON10 },
	{ "_impulse11",		UB_WEAPON11 },
	{ "_impulse12",		UB_WEAPON12 },
	{ "_impulse13",		UB_RELOAD },
	{ "_impulse14",		UB_WEAPON_NEXT },
	{ "_impulse15",		UB_WEAPON_PREV },
	{ "_impulse16",		UB_IMPULSE16 },
	{ "_impulse17",		UB_READY },
	{ "_impulse18",		UB_CENTER_VIEW },
	{ "_impulse19",		UB_OBJECTIVES },
	{ "_impulse20",		UB_IMPULSE20 },
	{ "_impulse21",		UB_IMPULSE21 },
	{ "_impulse22",		UB_IMPULSE22 },
	{ "_impulse23",		UB_CROUCH },
	{ "_impulse24",		UB_MANTLE },
	{ "_impulse25",		UB_IMPULSE25 },
	{ "_impulse26",		UB_IMPULSE26 },
	{ "_impulse27",		UB_IMPULSE27 },
	{ "_impulse28",		UB_IMPULSE28 },
	{ "_impulse29",		UB_IMPULSE29 },
	{ "_impulse30",		UB_INVENTORY_GRID },
	{ "_impulse31",		UB_IMPULSE31 },
	{ "_impulse32",		UB_IMPULSE32 },
	{ "_impulse33",		UB_IMPULSE33 },
	{ "_impulse34",		UB_IMPULSE34 },
	{ "_impulse35",		UB_IMPULSE35 },
	{ "_impulse36",		UB_IMPULSE36 },
	{ "_impulse37",		UB_IMPULSE37 },
	{ "_impulse38",		UB_IMPULSE38 },
	{ "_impulse39",		UB_IMPULSE39 },
	{ "_impulse40",		UB_IMPULSE40 },
	{ "_impulse41",		UB_FROB },
	{ "_impulse42",		UB_IMPULSE42 },
	{ "_impulse43",		UB_IMPULSE43 },
	{ "_impulse44",		UB_LEAN_FORWARD },
	{ "_impulse45",		UB_LEAN_LEFT },
	{ "_impulse46",		UB_LEAN_RIGHT },
	{ "_impulse47",		UB_INVENTORY_PREV },
	{ "_impulse48",		UB_INVENTORY_NEXT },
	{ "_impulse49",		UB_INVENTORY_GROUP_PREV },
	{ "_impulse50",		UB_INVENTORY_GROUP_NEXT },
	{ "_impulse51",		UB_INVENTORY_USE },
	{ "_impulse52",		UB_INVENTORY_DROP },
	{ "_impulse53",		UB_IMPULSE53 },
	{ "_impulse54",		UB_IMPULSE54 },
	{ "_impulse55",		UB_IMPULSE55 },
	{ "_impulse56",		UB_IMPULSE56 },
	{ "_impulse57",		UB_IMPULSE57 },
	{ "_impulse58",		UB_IMPULSE58 },
	{ "_impulse59",		UB_IMPULSE59 },
	{ "_impulse60",		UB_IMPULSE60 },
	{ "_impulse61",		UB_IMPULSE61 },
	{ "_impulse62",		UB_IMPULSE62 },
	{ "_impulse63",		UB_IMPULSE63 },

	{ NULL,				UB_NONE },

Names for keyboard keys on Windows can be found in win_input.cpp:

Spoiler



static const unsigned char s_scantokey[256] = { 
//  0            1       2          3          4       5            6         7
//  8            9       A          B          C       D            E         F
	0,           27,    '1',       '2',        '3',    '4',         '5',      '6', 
	'7',        '8',    '9',       '0',        '-',    '=',          K_BACKSPACE, 9, // 0
	'q',        'w',    'e',       'r',        't',    'y',         'u',      'i', 
	'o',        'p',    '[',       ']',        K_ENTER,K_CTRL,      'a',      's',   // 1
	'd',        'f',    'g',       'h',        'j',    'k',         'l',      ';', 
	'\'',       '`',    K_SHIFT,   '\\',       'z',    'x',         'c',      'v',   // 2
	'b',        'n',    'm',       ',',        '.',    '/',         K_SHIFT,  K_KP_STAR, 
	K_ALT,      ' ',    K_CAPSLOCK,K_F1,       K_F2,   K_F3,        K_F4,     K_F5,  // 3
	K_F6,       K_F7,   K_F8,      K_F9,       K_F10,  K_PAUSE,     K_SCROLL, K_HOME, 
	K_UPARROW,  K_PGUP, K_KP_MINUS,K_LEFTARROW,K_KP_5, K_RIGHTARROW,K_KP_PLUS,K_END, // 4
	K_DOWNARROW,K_PGDN, K_INS,     K_DEL,      0,      0,           0,        K_F11, 
	K_F12,      0,      0,         K_LWIN,     K_RWIN, K_MENU,      0,        0,     // 5
	0,          0,      0,         0,          0,      0,           0,        0, 
	0,          0,      0,         0,          0,      0,           0,        0,     // 6
	0,          0,      0,         0,          0,      0,           0,        0, 
	0,          0,      0,         0,          0,      0,           0,        0,      // 7
// shifted
	0,           27,    '!',       '@',        '#',    '$',         '%',      '^', 
	'&',        '*',    '(',       ')',        '_',    '+',          K_BACKSPACE, 9, // 0
	'q',        'w',    'e',       'r',        't',    'y',         'u',      'i', 
	'o',        'p',    '[',       ']',        K_ENTER,K_CTRL,      'a',      's',   // 1
	'd',        'f',    'g',       'h',        'j',    'k',         'l',      ';', 
	'\'',       '~',    K_SHIFT,   '\\',       'z',    'x',         'c',      'v',   // 2
	'b',        'n',    'm',       ',',        '.',    '/',         K_SHIFT,  K_KP_STAR, 
	K_ALT,      ' ',    K_CAPSLOCK,K_F1,       K_F2,   K_F3,        K_F4,     K_F5,  // 3
	K_F6,       K_F7,   K_F8,      K_F9,       K_F10,  K_PAUSE,     K_SCROLL, K_HOME, 
	K_UPARROW,  K_PGUP, K_KP_MINUS,K_LEFTARROW,K_KP_5, K_RIGHTARROW,K_KP_PLUS,K_END, // 4
	K_DOWNARROW,K_PGDN, K_INS,     K_DEL,      0,      0,           0,        K_F11, 
	K_F12,      0,      0,         K_LWIN,     K_RWIN, K_MENU,      0,        0,     // 5
	0,          0,      0,         0,          0,      0,           0,        0, 
	0,          0,      0,         0,          0,      0,           0,        0,     // 6
	0,          0,      0,         0,          0,      0,           0,        0, 
	0,          0,      0,         0,          0,      0,           0,        0      // 7
};

For completeness, here are the full contents of my DarkmodKeybinds.cfg file:

Spoiler


unbindall
bind "ENTER" "_impulse51"
bind "ESCAPE" "togglemenu"
bind "SPACE" "_moveup"
bind "0" "_impulse10"
bind "1" "_impulse2"
bind "2" "_impulse1"
bind "3" "_impulse3"
bind "4" "_impulse4"
bind "5" "_impulse5"
bind "6" "_impulse9"
bind "7" "_impulse7"
bind "8" "_impulse6"
bind "9" "_impulse8"
bind "=" "_impulse49"
bind "[" "_impulse48"
bind "\" "_mlook"
bind "]" "_impulse47"
bind "`" "_impulse0"
bind "a" "_moveleft"
bind "c" "_impulse44"
bind "d" "_moveright"
bind "e" "_impulse46"
bind "f" "_impulse23"
bind "g" "inventory_use '#str_02396'"
bind "i" "_impulse30"
bind "j" "reloadDecls"
bind "k" "inventory_cycle_group '#str_02392'"
bind "l" "inventory_use '#str_02395'"
bind "m" "inventory_cycle_maps"
bind "n" "noclip"
bind "o" "_impulse19"
bind "p" "map xray"
bind "q" "_impulse45"
bind "r" "inventory_hotkey ''"
bind "s" "_back"
bind "t" "notarget"
bind "u" "loadgame quick"
bind "v" "inventory_hotkey '#str_02397'"
bind "w" "_forward"
bind "x" "inventory_cycle_group '#str_02389'"
bind "y" "savegame quick"
bind "z" "inventory_cycle_group '#str_02389'"
bind "BACKSPACE" "_impulse52"
bind "PAUSE" "pause"
bind "UPARROW" "_forward"
bind "DOWNARROW" "_back"
bind "LEFTARROW" "_left"
bind "RIGHTARROW" "_right"
bind "ALT" "_strafe"
bind "CTRL" "_button5"
bind "SHIFT" "_speed"
bind "DEL" "_lookdown"
bind "PGDN" "_lookup"
bind "END" "_impulse18"
bind "F3" "_impulse17"
bind "F4" "savegame quick"
bind "F5" "loadgame"
bind "F6" "_impulse20"
bind "F7" "_impulse22"
bind "F9" "loadgame quick"
bind "F12" "screenshot"
bind "MOUSE1" "_impulse41"
bind "MOUSE2" "_attack"
bind "MOUSE3" "_zoom"
bind "MWHEELDOWN" "_impulse47"
bind "MWHEELUP" "_impulse48"

Dragofer · February 10, 2021

Seems a few things are available as both buttons and impulses. UsercmdGen.h lists buttons:

Spoiler





// ButtonState inputs; originally from UsercmdGen.cpp, left out of SDK by accident
// sourced from http://www.doom3world.org/phpbb2/viewtopic.php?f=26&t=18587&p=170143
typedef enum {
   UB_NONE,

   UB_UP,
   UB_DOWN,
   UB_LEFT,
   UB_RIGHT,
   UB_FORWARD,
   UB_BACK,
   UB_LOOKUP,
   UB_LOOKDOWN,
   UB_STRAFE,
   UB_MOVELEFT,
   UB_MOVERIGHT,

   UB_BUTTON0,
   UB_BUTTON1,
   UB_BUTTON2,
   UB_BUTTON3,
   UB_BUTTON4,
   UB_CREEP,
   UB_BUTTON6,
   UB_BUTTON7,

   UB_ATTACK,
   UB_SPEED,
   UB_PARRY_MANIPULATE,
   UB_SHOWSCORES,
   UB_MLOOK,

#ifdef QUAKE4
        UB_INGAMESTATS,
        UB_VOICECHAT,
        UB_TOURNEY,
#endif//QUAKE4

   UB_WEAPON0,
   UB_WEAPON1,
   UB_WEAPON2,
   UB_WEAPON3,
   UB_WEAPON4,
   UB_WEAPON5,
   UB_WEAPON6,
   UB_WEAPON7,
   UB_WEAPON8,
   UB_WEAPON9,
   UB_WEAPON10,
   UB_WEAPON11,
   UB_WEAPON12,
   UB_RELOAD,
   UB_WEAPON_NEXT,
   UB_WEAPON_PREV,
   UB_IMPULSE16,
   UB_READY,
   UB_CENTER_VIEW,
   UB_OBJECTIVES,
   UB_IMPULSE20,
   UB_IMPULSE21,
   UB_IMPULSE22,
   UB_CROUCH,
   UB_MANTLE,
   UB_IMPULSE25,
   UB_IMPULSE26,
   UB_IMPULSE27,
   UB_IMPULSE28,
   UB_IMPULSE29,
   UB_INVENTORY_GRID,
   UB_IMPULSE31,
   UB_IMPULSE32,
   UB_IMPULSE33,
   UB_IMPULSE34,
   UB_IMPULSE35,
   UB_IMPULSE36,
   UB_IMPULSE37,
   UB_IMPULSE38,
   UB_IMPULSE39,
   UB_IMPULSE40,
   UB_FROB,
   UB_IMPULSE42,
   UB_IMPULSE43,
   UB_LEAN_FORWARD,
   UB_LEAN_LEFT,
   UB_LEAN_RIGHT,
   UB_INVENTORY_PREV,
   UB_INVENTORY_NEXT,
   UB_INVENTORY_GROUP_PREV,
   UB_INVENTORY_GROUP_NEXT,
   UB_INVENTORY_USE,
   UB_INVENTORY_DROP,
   UB_IMPULSE53,
   UB_IMPULSE54,
   UB_IMPULSE55,
   UB_IMPULSE56,
   UB_IMPULSE57,
   UB_IMPULSE58,
   UB_IMPULSE59,
   UB_IMPULSE60,
   UB_IMPULSE61,
   UB_IMPULSE62,
   UB_IMPULSE63,

   UB_MAX_BUTTONS
} UserCmdButton;


// usercmd_t->button bits
const int BUTTON_ATTACK			= BIT(0);
const int BUTTON_RUN			= BIT(1);
const int BUTTON_ZOOM			= BIT(2);
const int BUTTON_SCORES			= BIT(3);
const int BUTTON_MLOOK			= BIT(4);
const int BUTTON_CREEP			= BIT(5);
const int BUTTON_6				= BIT(6);
const int BUTTON_7				= BIT(7);

Then impulses:

Spoiler





// usercmd_t->impulse commands
enum {
	IMPULSE_WEAPON0,
	IMPULSE_WEAPON1,
	IMPULSE_WEAPON2,
	IMPULSE_WEAPON3,
	IMPULSE_WEAPON4,
	IMPULSE_WEAPON5,
	IMPULSE_WEAPON6,
	IMPULSE_WEAPON7,
	IMPULSE_WEAPON8,
	IMPULSE_WEAPON9,
	IMPULSE_WEAPON10,
	IMPULSE_WEAPON11,
	IMPULSE_WEAPON12,
	IMPULSE_RELOAD,
	IMPULSE_WEAPON_NEXT,
	IMPULSE_WEAPON_PREV,
	IMPULSE_16,
	IMPULSE_READY,
	IMPULSE_CENTER_VIEW,
	IMPULSE_OBJECTIVES,
	IMPULSE_20,
	IMPULSE_21,
	IMPULSE_22,
	IMPULSE_CROUCH,
	IMPULSE_MANTLE,
	IMPULSE_25,
	IMPULSE_26,
	IMPULSE_27,
	IMPULSE_28,
	IMPULSE_29,
	IMPULSE_INVENTORY_GRID,	// #4286
	IMPULSE_40 = 40,
	IMPULSE_FROB,
	IMPULSE_42,
	IMPULSE_43,
	IMPULSE_LEAN_FORWARD,
	IMPULSE_LEAN_LEFT,
	IMPULSE_LEAN_RIGHT,
	IMPULSE_INVENTORY_PREV,
	IMPULSE_INVENTORY_NEXT,
	IMPULSE_INVENTORY_GROUP_PREV,
	IMPULSE_INVENTORY_GROUP_NEXT,
	IMPULSE_INVENTORY_USE,
	IMPULSE_INVENTORY_DROP,
	IMPULSE_MAX
};

Strangely I can only find a handful of the above names in other source files, i.e. IMPULSE_WEAPON12 in Player.cpp. You'd think that something like UB_LEAN_LEFT and UB_LEAN_RIGHT (_impulse45 and _impulse46, bound to q and e) would show up somewhere else.

buzzwall · February 10, 2021

Ah great stuff! Thanks. Looks like everything I need.

I'm on Linux so things may be different. I'll check it out.

HMart · February 10, 2021

7 hours ago, Dragofer said:

Strangely I can only find a handful of the above names in other source files, i.e. IMPULSE_WEAPON12 in Player.cpp. You'd think that something like UB_LEAN_LEFT and UB_LEAN_RIGHT (_impulse45 and _impulse46, bound to q and e) would show up somewhere else.

On original Doom 3 very few impulses and buttons are used, even thou the list is big, so the same most be true for TDM.

buzzwall imo there's a easy way to know what is used or not, not sure about TDM engine but for doom 3, impulses are managed in the player.cpp file in PerformImpulse() function called inside the player Think() function and other places, you can see in the TDM player file if that is there, and if it is than you can see the current impulses the player can use, you can also search the code base for "usercmd.impulse == IMPULSE_NAME" for any impulse being used directly, or "usercmd.buttons & BUTTON_NAME" for buttons in this case.

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keymap for "nextweapon/wheel down"

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