Developer Mode

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Developer Mode's cheat code on a special crate in Syndicate Warehouse.

Developer Mode is a bundle of features created by Bungie West to help them develop Oni: a console line for entering scripting commands, manual camera controls, and various debugging features. It was traditionally activated with the cheat code thedayismine, but see "Unlocking it" and "Activating it" below before trying the code.

Despite being hinted at by a crate texture (right) and appearing on a leaked list of cheat codes during beta testing, this cheat code did not work upon Oni's release, and it was long believed that Developer Mode had been cut from retail versions of Oni. However, Dev Mode is actually present in all available versions of Oni. It just needed to be unlocked, as the community learned back in 2006.

Below you will find download links, unlocking instructions, and finally an overview of the Developer Mode's features. For Dev Mode features lurking in the PS2 version of Oni, first discovered in 2017, see Oni (PlayStation 2).

Unlocking it

...by downloading a patch

Windows: You can install the Daodan DLL to unlock Developer Mode; note that the Anniversary Edition installs the Daodan DLL automatically.
Mac: The Intel build of Oni already has Dev Mode unlocked; note that the Anniversary Edition installs the Intel build automatically.

...by doing it yourself

Activating it

Unlock cheats

Even once Developer Mode is unlocked, it must be activated in-game through a cheat code. Cheats are normally disabled until you finish the full version of the game, but cheats are enabled all the time when the Daodan DLL is installed in Windows or when using the Mac Intel build.

Enter the cheat code

Enter the Data Comlink (default key F1) and look for a confirmation message after typing the Developer Mode cheat thedayismine (or killmequick if you followed the DIY tutorial above). You can also just type x when the Daodan DLL or Mac Intel build is being used.

Using the console

~
`
§
½
°
^

2
U.S.
QWERTY
Danish
QWERTY
German
QWERTZ
French
AZERTY

By default, Oni auto-binds the "console" toggle to the key to the left of the numeric row. On U.S. QWERTY keyboards, this is the key with a grave accent, `, in the lowercase position and a tilde, ~, in the uppercase position. It is usually called the "tilde key" by users even though it's really the "grave accent key".

On non-U.S. keyboards, that key may not be present. The default key for your layout is depicted to the right:

Danish QWERTY: The ½ key to the left of the numeric row.
German QWERTZ: The circumflex accent key, ^.
French AZERTY: The 2 key to the left of the numeric row.

Or you can simply add a line like "bind z to console" to key_config.txt in your Oni folder and you'll be able to open the console with that key. In some cases, this bound key will not close the console, but pressing the grave accent key will, oddly enough.

Console output glitch

When Developer Mode is active, Oni prints debug messages about in-game events along the bottom-left of the screen. Past messages scroll up the screen and fade. In some situations, messages don't fade (e.g. if character debugging is enabled or you are currently using the console line).

The easiest way to check whether console output works at all is to press F8: the character class change is acknowledged with a console message.

If you don't see anything, console output is broken in your version of Oni. The old WinXP patch (no longer offered because it is superseded by the Daodan DLL) was known to disable console output. In Windows demo Oni, both console output and console input are invisible (i.e. you can enter script commands, but you're "blindfolded").

Features

Many of the features listed below no longer work as intended, either due to changes made to the code before shipping Oni or due to the absence in retail Oni of developer resources that the features were intended to call upon, such as level0_Tools. Nevertheless, some of these features are helpful for modders, most notably the camera controls and dev console.

Hotkeys

Below are Oni's hardcoded mappings for Developer Mode functions. The Alt key (Option key on Macs) can be used in place of Ctrl. Ctrl is called "Strg" on German keyboards.

The "U.S. QWERTY" column gives the standard hotkeys (the keys intended by the American developers to be pressed). In the "German QWERTZ" and "French AZERTY" columns, the hotkeys differing from U.S. QWERTY are shown. If you have another type of keyboard that you would like to have incorporated into the table, feel free to add a column (or ask for it on the talk page).

If a hotkey's functionality has been restored in Windows using the Daodan DLL, it will be checked off here. Stuff that doesn't work has been grouped at the end of the table.

U.S. QWERTY German QWERTZ French AZERTY Description Windows Mac
` (grave accent) ^ ² Displays console Checkmark 16px blue.png Checkmark 16px blue.png
Ctrl+Shift+O Hide non-(visually-)occluding quads (1) Checkmark 16px blue.png
Ctrl+Shift+S Hide non-sound-occluding quads (2) Checkmark 16px blue.png
Ctrl+Shift+I Draw invisible quads Checkmark 16px blue.png
Ctrl+Shift+Y Ctrl+Shift+Z Ctrl+Shift+Y Performance display (includes FPS) Checkmark 16px blue.png Checkmark 16px blue.png
Ctrl+Shift+T Draw only character-colliding geometry Checkmark 16px blue.png
Ctrl+Shift+R Draw only object-colliding geometry Checkmark 16px blue.png
Ctrl+Shift+F Fast Mode (runs Oni at up to 24x) Checkmark 16px blue.png Checkmark 16px blue.png
Ctrl+Shift+G Draw Every Frame Mode Checkmark 16px blue.png (3)
Ctrl+Shift+X Toggle show trigger volumes (formerly "Secret X") Checkmark 16px blue.png Checkmark 16px blue.png
Ctrl+Shift+Ins Add flag Checkmark 16px blue.png (4)
Ctrl+Shift+Del Delete flag Checkmark 16px blue.png Checkmark 16px blue.png
Ctrl+Shift+U Unstick player Checkmark 16px blue.png Checkmark 16px blue.png
Ctrl+Shift+\ Ctrl+Shift+# Ctrl+Shift+* Displays "Profile on"/"Profile off" (no other known effect) Checkmark 16px blue.png
Ctrl+Shift+L Dumps a screenshot every frame Checkmark 16px blue.png Checkmark 16px blue.png
. (period) : (colon) Single Step Mode Checkmark 16px blue.png Checkmark 16px blue.png
/ - ! Advance one step (when in Single Step Mode) Checkmark 16px blue.png Checkmark 16px blue.png
.+/ .+- :+! Exit Single Step Mode (press keys simultaneously) Checkmark 16px blue.png Checkmark 16px blue.png
Ctrl+Shift+Home Cycle active camera Checkmark 16px blue.png
End Warp to camera Checkmark 16px blue.png Checkmark 16px blue.png
Ctrl+Shift+B Shows current opponent's logic Checkmark 16px blue.png Checkmark 16px blue.png
] + $ Freeze animation frame (6) Checkmark 16px blue.png Checkmark 16px blue.png
[ Ü ^ Advance animation frame (6) Checkmark 16px blue.png Checkmark 16px blue.png
F2 Cutscene Animation 1 Checkmark 16px blue.png Checkmark 16px blue.png
F3 Cutscene Animation 2 Checkmark 16px blue.png Checkmark 16px blue.png
F6 Kill all AIs Checkmark 16px blue.png Checkmark 16px blue.png
Ctrl+F7 Play dead Checkmark 16px blue.png Checkmark 16px blue.png
F7, Shift+F7 Cycle weapons (holster to get second weapon) Checkmark 16px blue.png Checkmark 16px blue.png
F8, Shift+F8 Cycle characters Checkmark 16px blue.png Checkmark 16px blue.png
F9 Start recording Checkmark 16px blue.png Checkmark 16px blue.png
F10 Stop recording Checkmark 16px blue.png Checkmark 16px blue.png
F11 Playback recording Checkmark 16px blue.png Checkmark 16px blue.png
Return/Enter Cycle camera modes (see table below for camera controls):
1. Normal
2. Detached A - mouse still controls character aim
3. Detached B - mouse aims camera
Checkmark 16px blue.png Checkmark 16px blue.png
U.S. QWERTY German QWERTZ French AZERTY Description Windows Mac
Ctrl+Shift+Y Ctrl+Shift+Z Ctrl+Shift+Y Secret Y (5)
Ctrl+Shift+Z Ctrl+Shift+Y Ctrl+Shift+Z Secret Z (5)
Ctrl+Shift+N Camera recording start
Ctrl+Shift+M Ctrl+Shift+, Camera recording stop
Ctrl+Shift+, Ctrl+Shift+; Camera recording playback
Place quad
Place quad mode
Ctrl+Shift+1 Ctrl+Shift+& Test One
Ctrl+Shift+2 Ctrl+Shift+é Test Two
Ctrl+Shift+3 Ctrl+Shift+" Test Three
Ctrl+Shift+4 Ctrl+Shift+' Test Four
Ctrl+Shift+K Kill particles
Backspace Enter AI debugger
7 è Explode One
8 _ Explode Two
9 ç Explode Three
0 @ Explode Four
Ctrl+Shift+J Reset particles
Ctrl+Shift+W Ctrl+Shift+Z Ctrl+Shift+W Drop flag and add waypoint
Ctrl+Shift+P Display particle performance
Ctrl+Shift+; Ctrl+Shift+Ö Ctrl+Shift+M Lock particle performance display


(1) This dev feature does not fully function in Windows, so the only non-occluding quads that disappear are console screens.

(2) This dev feature does not fully function in Windows, so the non-sound-occluding quads remain visible. However, the second aspect of this feature, which marks furniture with a red texture to indicate that it is partially sound-occluding, still works.

(3) On Macs, Draw Every Frame Mode speeds up the game almost to the extent of Fast Mode, but with glitchy animations.

(4) Please see talk page section "Insert key on Macs".

(5) Wouldn't Ctrl+Y and Ctrl+Z conflict with "Performance display"?

(6) "Animation freezing" works on the main character and means two things:

a) The character's position and pose remain exactly the same as they were at the time of freezing, along with collision shapes (spheres and body parts) and other stuff.
b) The actual character, unless "pinned" with chr_pin_character=1, will keep moving with the same velocity as at the time of freezing.
  • For regular (grounded) animations, the vertical velocity is zero and the horizontal velocity is determined by the animation frame that was playing at the time of freezing.
  • If airborne (jumping or falling) the current airborne velocity (both vertical and horizontal) at the time of freezing is maintained.
  • Wall collision is disabled, as well as gravity acceleration and the "air" timer (so you can't die from falling for too long while frozen).
  • Floor collision still works, as well as the "off" timer that starts when you step off a ledge, and the downward velocity that is applied then (see ONCC for details on this downward velocity).
If one sets chr_pin_character=1, then animation debugging works exactly as intended: there is no drifting, and one can conveniently advance through the frames of the current animation.
If one does not set chr_pin_character=1, then the frame-freezing functionality does not allow one to study animations, and instead provides a powerful (and risky) teleporting gimmick.

Camera controls

Note that the camera controls have default mappings, given below, but unlike the developer hotkeys, they are custom-bindable. In fact, on Macs, the default numpad bindings need to be customized or they won't work at all. See note HERE about how to bind these keys and fix the Mac numpad controls. Also, the definitions of panning left and right are reversed, as NumPad4 will turn the camera to the left, but its action is called "man_cam_pan_right", and vice versa for NumPad6....

After detaching the camera with Enter and flying it away from Konoko, the End key teleports Konoko to the camera position and attaches the camera to her position again. If you turn off collision with "chr_nocollision 0 1" before teleporting, Konoko will not fall out of the air when teleported to the camera position (just don't jump with collision off...).

Windows
Key Result
NumPad 1/3 Move camera left/right
NumPad 8/5 Move camera forward/backward
NumPad -/+ Move camera up/down
NumPad 6/4 Pan camera left/right
Up/Down Arrow Pan camera up/down
Mac
Key Result
Left/Right Arrow Move camera left/right
Up/Down Arrow Move camera forward/backward
Page Up/Down Move camera up/down
NumPad 6/4 Pan camera left/right
NumPad 8/2 Pan camera up/down

Runtime scripting

Almost anything that you can write in a BSL script you can enter at runtime with the console. One major thing you can't do is register new variables and functions. You can only call existing functions and get/set the values of existing variables. "Existing" means either built-in ones (see BSL:Functions and BSL:Variables), or ones found in the level scripts, or ones defined by scripts you may have added to the current level.

While typing on the console line, you'll see a suggested autocompletion for the command you're typing; Tab accepts the autocomplete, and then Tab or Shift-Tab will cycle forward/backward through adjacent commands in ASCIIbetical order (A…Z comes before a…z). Previous commands from the current session can be retrieved with the up/down arrows. You can't insert/delete text in the middle of a command; you have to use Backspace. Copy and Paste are not available either.

If you press an illegal key during console input (such as F1), the input display will freeze; hit Tab a few times to fix.

Cheating

There are a few commands which you can type in as equivalents to regular cheat codes, and more that you can't do with cheats:

  • "chr_nocollision 0 1" and "chr_nocollision 0 0" enable/disable no-clip, allowing you to walk through walls. When in no-clip mode, you can't fall; thus, jumping makes you flail in midair, and eventually you die (so try not to jump).
  • "give_powerup shield" gives you a force shield (which you can't get with fatloot).
  • See Cheats for the BSL equivalents to various other cheats.