U2.SpeakerTrigger

//=============================================================================
// SpeakerTrigger.uc
// Created By: Mike Fox
// Created On: 8/01/00
// $Author: Mfox $
// $Date: 1/29/03 4:24p $
// $Revision: 4 $
//=============================================================================

class SpeakerTrigger extends Trigger;

/*-----------------------------------------------------------------------------
Used to change an actor's speaker string when triggered. e.g. if the first NPC
of a group walks through a certain spot in the level we could give him a speaker
string causing him to carry out specific dialog.

If more than one speaker string given, subsequent triggers will iterate through the list.
The player's speaker string should NOT be changed
-----------------------------------------------------------------------------*/

var() array<string> SpeakerStrings;

var() enum ETargetType
{
	TT_TargetInstigator,	// target is instigator (must be a U2NPCBase)
//	TT_TargetNamed,			// target is NPC with Name=TargetName
	TT_TargetNearest,		// target is nearest U2NPCBase of specified class
	TT_TargetTagged,		// target is NPC with Tag=TargetName
} TargetType;

var() string TargetClassString;
var() name TargetName;

var private int CurrentSpeaker;

//-----------------------------------------------------------------------------

function bool IsUsable( Actor Other ) { return !bDeleteMe; }

//-----------------------------------------------------------------------------

protected function TriggerActors( 
	Actor TriggerSrc,
	class<Actor> TriggerClass, 
	Actor Other, 
	Pawn Instigator, 
	name TriggerEvent,
	bool bTriggerNPCs )
{
	// find the target actor and set its speaker string
	local actor TargetActor;
	local class<Actor> TargetClass;

	if( TargetType == TT_TargetInstigator )
	{
		TargetActor = Instigator;
	}
	else if( TargetType == TT_TargetNearest )
	{
		TargetClass = class<Actor>(DynamicLoadObject( TargetClassString, class'Class' ));
		if( TargetClass != None )
			TargetActor = class'UtilGame'.static.GetClosestActor( Self, TargetClass );
	}
	else if( TargetType == TT_TargetTagged )
	{
		if( TargetName != '' )
			foreach AllActors( class'Actor', TargetActor, TargetName )
				break;
	}

	// FIX Add a trigger type for non-player pawn proximity?
	if( TargetActor != None && TargetActor.Speaker != "Player" )
	{
		TargetActor.Speaker = SpeakerStrings[CurrentSpeaker];
		if( CurrentSpeaker + 1 < SpeakerStrings.Length )
			CurrentSpeaker++;
		else
			CurrentSpeaker = 0;		// wrap
	}
	// mdf-tbd: didn't do anything -- make sure trigger still active?
	// Its not trivial to do this without refactoring teh trigger code even further
}

//-----------------------------------------------------------------------------

defaultproperties
{
	TargetClassString="Engine.Pawn"
     UseReticleOnEvents(0)="UseReticleText"
     UseReticleOnEvents(1)="UseReticleCorners"
     UseReticleOnEvents(2)="UseReticleTopBars"
     ProximityReticleOnEvents(0)="ProximityReticleCorners"
     ProximityReticleOnEvents(1)="ProximityReticleTopBars"
}