Dialog Parameters

Dialog Parameters are all the informations which can be added to nodes in a dialog file to describe the conversation. The complete list of parameters and the type of value to be specified can be seen in the Properties.txt file stored in your Unreal2\Dialog file.

Parameter name	Parameter format	Parameter effect
Conversation	heading	Name of the conversations stored in this file. Only to be added to the [Root] node. If you are using the Dialog Editor, these are created automatically and should not be added by hand.
ShortText	text	Title of this node. This is the text displayed on the HUD as a dialog option when several choices are possible. Only useful for the Player.
LongText	text	Text written at the bottom of the screen when the character speaks. This is the actual subtitle system used in the game.
Controller	heading
AudioDuration	time in seconds
SoundFile	Package.File	Location of the sound file used for the character's speech. The files are stored as .ogg files in the Unreal2\Voice folder or in UTX files. By adding ",Player" at the end of this parameter, the sound will be emitter by the player, at full volume and independently of the player's position (for narrators, player lines and radiotransmitted communication for example).
Speaker	string	Name of the speaker. Must be linked to the Speaker filed in a characters AI=>Speaker field in the map. Player is a hardcoded speaker which is linked to the player's character.
PreDelay	time in seconds	Defaults to 0. Number of seconds the character will wait after someone spoke before uttering his own lines.
Delay	time in seconds
PostDelay	time in seconds	Defaults to 0. Number of seconds the character will wait before anyone can speak after him.
Priority	integer
Mood	float
Tone	Casual/formal/command
ChangeTone	Casual/formal/command
SpokenMax	integer	How many time can this node be played. If not included, defaults to 1. If set to 0, is infinite.
EndDialog	True/False
Enabled	True/False	Sets whether the node is enabled or not. If not included in the node, defaults to true.
HideChoices	True/False	If not included, defaults to false. If set to true, the player will not have to input his choice for the next part of the conversation. If false, the next lines will appear on the left-side of the screen and the player will be able to choose his answer (even if only one line is possible). Only useful when Speaker is Player.
UseBookmark	True/False
LipSync	True/False
TalkRadius	float	Maximum distance between the characters before the conversation is interrupted.
Attitude	LIke/Impartial/Dislike
TurnToSpeaker	True/False	Defaults to True: the character turns to the player to speak. If set to false, the character will not change his position while talking (such as Ne'Ban while he is driving the Atlantis).
Condition	string
Sattelite	sattelite, speaker, delay	Head-Tracking parameter. Not much known so far. Possibly related to Golem satellites (as in rotating satellite dishes?) To be tested.
ChangeMood	amount, speaker
Animation	animation, speaker, delay	Forces the NPC to play an animation. To be tested.
Event	event, speaker, delay	Allows the triggering of an event at some point during the node. Event is the name of the event sent. Speaker is the name of the instigator. Delay is the percentage of the node at which the event is sent. By default, the delay is 0 and the event is sent the moment the node begins. A value like Event=OpenDoor,,50 sends the OpenDoor event without any instigator after 50% of the node has passed. Very high values (superior to 90) are unreliable.
ExitEvent	event, speaker	Same as Event, but only sends the event after the last line of the conversation (not the node) is finished. Very reliable.
EnableNode	NodeName	Enables a node previously set to Enabled=False.
DisableNode	NodeName	Disables a node previously set to Enabled=True.
EnableNodeOnExit	NodeName	Enables a previously disabled node once the conversation (not the node) is over.
DisableNodeOnExit	NodeName	Disables a previously enabled node once the conversation (not the node) is over.
PauseNPC	speaker, delay
UnPauseNPC	speaker, delay
NextNode	NodeName	Next node to play in the conversation. The next node is automatically launched if the Speaker is not Player. If the Speaker is player, the next node is played automatically if HideChoices is set to True, or will otherwise present the next node as a dialog options. Several options can be presented to the player if a node as several next nodes specified.
AbortNode	NodeName, speaker, ending
ResumeNode	NodeName, speaker, ending

All nodes are still not documented. It is known that some functions have never been finished and/or included in the game, including the possibility for NPCs to remember when they were interrupted and to change their mood accordingly. All parameters linked to such things may be absolutely non-working.

In addition to these documented parameters, the code shows that there exists more parameters:

EndingFocus	Tag or name?	Actor the character will look at when the conversation is over. This parameter is used in the dialog files, but is always devoid of target, which is supposed to have the character remain focused on whatever he was focused before. To be tested.
SubtitleRadius	float	Maximum distance from the conversation where the subtitles of the dialog are displayed on the player's HUD, when the player is not a member of the conversation (two NPCs talking). To be tested.
SoundSourceActor	Tag or name?	Actor from which the voice is spoken. Defaults to the Speaker of the node. To be tested.
SpokenCount	???	Supposedly, the number of time this node has been played.
Volume	float	Volume of the sound of the voice or soundfile. To be tested.

There are still other parameters. Extensive testing will be needed.