Daodan DLL

The Daodan DLL is a modification for Oni that hooks into the game engine and applies bug fixes and patches. It also replaces parts of the engine with its own code. Daodan fixes many issues, including the famous "Blam!" error that occurs on many Windows XP machines. It also adds new features such as support for extra screen resolutions (including many widescreen resolutions) and bonus cheat codes.

Installation Instructions

1. Before installation, it is important to know where your copy of Oni has been installed to. For most people, it is stored in "C:\Program Files\Oni" (My Computer -> Local Disk (C:) -> Program Files -> Oni). This folder should contain a "GameDataFolder" and "Oni" or "Oni.exe".
2. It is important that you use an "Oni.exe" that is compatible with Daodan. If you are using the FASM-Daodan, Oni will not start unless you have the correct EXE. If you are using the recommended version of C-Daodan, Oni will start, but most of the features of Daodan will not be present.
3. Back up your Oni.exe and binkw32.dll files by renaming them (e.g. "Oni-original.exe").
4. Place the newly-downloaded Oni.exe, binkw32.dll (and realbink.dll, if provided) in the folder with Oni.exe.

Testing

To test if you have done everything correctly, run "Oni.exe". Enter the pause (Diary) screen (F1 by default) and type "tellmetheversion"; if you get a result like "Daodan v.3.0", the DLL is working.

C-Daodan

The recommended version is the last stable version of C-Daodan. This is also the only version that supports windowed mode.

Download C-Daodan (binkw32.dll) —> Use with this version of the game app (you probably already have it)

Feature summary

• Windows XP patch - Fixed Oni crashing at startup on modern computers.
• Windowed mode - Oni runs inside a window; there is a menu option to enter fullscreen mode.
• Custom screen resolutions - Includes many more default screen resolutions and the ability to add custom resolutions (see below)
• BGRA32 support
• Extra cheats - bigbadboss (player takes less weapon damage), bulletproof (player takes no weapon damage), kangaroo (high jumps), marypoppins (flight)
• Cheats always enabled
• Extra command line options (for advanced users) - For a list, type "Oni -help".
• DirectInput is used on NT, XP and Vista - Better support for keyboard layouts.
• AIs have the ability to properly dodge projectiles.
• Stops fly-in character portraits from being stretched when playing in widescreen.

Settings

Patches

Creating a file called Daodan.ini in the same directory as the Daodan DLL will allow you to enable/disable the patches inside Daodan. It can also be used to store configuration settings and language items. Each setting is stored inside a section as a name and value pair.

To enable a patch, look for the patches section in your Daodan.ini. If the patches section doesn't exist, create it by typing

[Patch]

at the end of your file. You can now enable or disable patches by typing the patch name followed by =True or =False (caps and spacing don't matter). For example, let's say you want to turn off the cooldown timer patch (so you can drop and pick up the Mercury Bow after firing to fire again immediately) and the new windowed mode makes your game crash or makes it run slowly:

[Patch]
CooldownTimer = False
WindowHack = False

All patch names are found in the "All patches" section below.

Options

With an unpatched Oni, the only way to change settings such as windowed mode was to create a batch file (.bat) and type command line options into it. In the beta Daodan, options can be added to the Daodan.ini. To add an option, look for the options section or type

[Options]

at the end of your Daodan.ini. To enable windowed mode by default, type:

[Options]
Switch = False

Similarly, to disable sound, add the line:

[Options]
Switch = False
Sound = False

A list of options can be found in the "All options" section below.

Command-line arguments

Command line options are still present in the beta Daodan although the syntax is a little different (and a bit more powerful.) The basic syntax for a command line option is this:

-<ini section>.<name> <value>

Where <ini section> is the Daodan.ini section (usually Patch or Options,) <name> is the option and <value> is the value to set it to (usually True or False.) Therefore, to disable sound, start Oni with this:

oni -options.sound false

When <ini section> is omitted, it is assumed to be options. When <value> is omitted, it is assumed to be true unless <name> starts with no (eg. nosound) in which case it is assumed to be false. So an easier way to write the above command would be:

oni -nosound

Options or patches specified on the command line take precedence over options specified in Daodan.ini. Currently Oni's command line parser isn't powerful enough to parse language elements (no support for quoting arguments); this will be fixed in a later release.

All patches

Below are the names of the patches you can turn on and off in Daodan.ini (names are case-insensitive). Also noted is whether the DLL has this patch turned on or off by default.

INI name	Default	Description
levelplugins	true	Allows level files to be loaded from the GDF which do not end in "_Final".
fonttexturecache	true	Doubles size of font texture cache.
largetextures	true	Textures up to 512x512 can be used.
pathfinding	true	Multiples size of pathfinding grid cache by eight in order to prevent crashes in large levels.
projaware	true	Allows AI to dodge incoming gunfire properly.
directinput	true	Forces on DirectInput.
wpfadetime	true	Adds working function for existing BSL command wp_fadetime, sets fade time to 4800.
kickguns	false	Unfinished, do not use.
cooldowntimer	true	Disables weapon cooldown exploit.
throwtest	false
alttab	true	Allows user to switch applications while in Oni (Alt-Tab) and use Windows key, however it may enable the screensaver as well.
particledisablebit	false	Unlocks particle action disabling/enabling bits for all events.
multibyte	false	Enables languages which use multibyte coding (such as Chinese).
cheattable	true
argb8888	true	Textures using ARGB8888 can be used.
killvtune	REMOVED	Would prevent loading of vtuneapi.dll.
getcmdline	true	Replaces existing command line with Daodan's in order to add new commands.
disablecmdline	true	Ditto above.
safeprintf	true	Replaces Oni's function that prints to startup.txt with a safer one.
daodandisplayenum	true	Offers more display modes in the Options menu.
usegettickcount	true	Replaces Oni's timing functions with more accurate ones.
cheatsenabled	true	Enables cheats without having to beat the game first.
usedaodangl	true	Provides an improved windowed mode (-noswitch); this patch is known to break the hiding of the Windows taskbar.
windowhack	false	Fallback to be used for simpler windowed mode hack instead of "usedaodangl".
daodaninit	true	Adds new Daodan BSL functions.
bsl	true	Enables d_regen (unfinished) and prevents fly-in portraits from being stretched when playing in widescreen resolutions.
cheater	true
newweap	true	Picking up a weapon displays a message containing the weapon name and amount of ammo.

All options

Below are the names of the options you can turn on and off in Daodan.ini (names are case-insensitive). Also noted is whether the DLL has this option turned on or off by default.

INI name	Default	Description
usedaodanbsl	true	Adds new BSL commands (see below).
border	true	If "windowhook" patch is active, make sure game window has border in windowed mode.
shadow	false	If "windowhook" patch is active, make sure game window has shadow in windowed mode.
topmost	false	Keep game window on top in windowed mode, even when switching applications.
multibyte	false	Redirects to patch "multibyte"; see "Patches" section.
various	--	Oni's built-in arguments; see Customizing#Command-line_arguments.
switch	true	Simply an inversely-named alternative to the built-in "noswitch".

BSL

Any time a function can both get and set a value, and you set the value, the old value should be is returned, barring any programming oversight by Gumby.

Math

• int int32mul n1:int n2:int

Multiplies two integers

• float mul [int1:int|float1:float] [int2:int|float2:float]

Multiplies two numbers

• int int32div n1:int n2:int

Divides two integers

• float div [int1:int|float1:float] [int2:int|float2:float]

Divides two two numbers

• int int32rand start:int end:int

Returns a pseudo-random number between two numbers (inclusive).

Characters

• int d_getkills [ai_name:str | script_id:int]

Gets the number of kills a character has

• int d_getdamage [ai_name:str | script_id:int]

Gets the amount of damage a character has caused

• string d_name [ai_name:str | script_id:int] [newname:string]

Gets or sets a character's name

• string d_regen [ai_name:str | script_id:int] on_off:bool

Currently broken, won't do anything

• int d_getindex [ai_name:str]

Gets a character's script_id from their name

• int d_powerup ai_name:str|script_id:int powerup:str [newcount:int]

Gets or sets the amount of powerups a character has

Powerup list the same as with chr_givepowerup with the addition of "bossshield"

• int d_health [ai_name:str | script_id:int] [newhealth:int]

Gets or sets a character's health

• int d_maxhealth [ai_name:str | script_id:int] [newmaxhealth:int]

Gets or sets a character's maxhealth

• int d_holdkey [ai_name:string | script_id:int] keys frames:int

Makes a character hold a key

Possibly broken

• int d_isheld keys

Checks if player is holding a key

Possibly broken

• int d_waitforkeypress keys

Waits for a keypress from the player

• int d_powerup [ai_name:string | script_id:int] powerup:string

Gets or sets a character's powerups

• float d_location [ai_name:string | script_id:int] xyz:string

Gets the X\Y\Z coordinate of a character

• float d_location [ai_name:string | script_id:int] x:float y:float z:float

Sets the XYZ coordinates of a character

• int d_regen [ai_name:string | script_id:int] yesno:int

Gets or sets a character's regeneration abilities

Text

• void d_dprint text:string [textcolor: r b g] [shadowcolor: r b g]

Prints to console in color

Colors are ints between 0 and 255. Other numbers will be reduced to 255.

Any colors you do not supply will be replaced with the default values: 255, 255, 255 and 63, 63. 63

• string sprintf str1:format ...

Does a C-style sprintf operation on a string

Developer Mode

The DLL enables Developer Mode; go to the pause screen (F1) and type "thedayismine" or simply 'x' to activate it.

Custom screen resolutions

If you wish to run in a screen resolution that is not available and you are running the recommended version of C-Daodan, create a text file (Notepad document) called "res.txt" in your Oni folder (C:\Program Files\Oni) containing a list of custom resolutions in this format (one resolution per line):

800x600
1024x600
1024x768

FASM-Daodan (old)

There is also a much older release of Daodan, referred to as FASM-Daodan. This is the original version by SFeLi. Unlike the stable version of C-Daodan, FASM-Daodan requires a different DLL to be downloaded depending on which Oni.exe is used. It does not support the newer Daodan features, such as windowed mode and custom resolutions, however it still contains the basic patches such as the Windows XP patch and the custom cheats.

Download a ZIP containing the DLLs for each version.

Download a ZIP containing the DLLs for an experimental (unstable) FASM-Daodan This includes the projectile awareness patch and support for any language (except Chinese and Japanese). This is currently the only version of Daodan with added language support.