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Engine.Teleporter


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///=============================================================================
// Teleports actors either between different teleporters within a level
// or to matching teleporters on other levels, or to general Internet URLs.
//=============================================================================
class Teleporter expands NavigationPoint
    intrinsic;

#exec Texture Import File=Textures\Teleport.pcx Name=S_Teleport Mips=Off Flags=2

//-----------------------------------------------------------------------------
// Teleporter URL can be one of the following forms:
//
// TeleporterName
//		Teleports to a named teleporter in this level.
//		if none, acts only as a teleporter destination
//
// LevelName/TeleporterName
//     Teleports to a different level on this server.
//
// Unreal://Server.domain.com/LevelName/TeleporterName
//     Teleports to a different server on the net.
//
var() string[64] URL;

//-----------------------------------------------------------------------------
// Product the user must have installed in order to enter the teleporter.
var() name ProductRequired;

//-----------------------------------------------------------------------------
// Teleporter destination flags.
var() bool    bChangesVelocity; // Set velocity to TargetVelocity.
var() bool    bChangesYaw;      // Sets yaw to teleporter's Rotation.Yaw
var() bool    bReversesX;       // Reverses X-component of velocity.
var() bool    bReversesY;       // Reverses Y-component of velocity.
var() bool    bReversesZ;       // Reverses Z-component of velocity.

// Teleporter flags
var() bool    bEnabled;         // Teleporter is turned on;

//-----------------------------------------------------------------------------
// Teleporter destination directions.
var() vector  TargetVelocity;   // If bChangesVelocity, set target's velocity to this.

// AI related
var Actor TriggerActor;     //used to tell AI how to trigger me
var Actor TriggerActor2;

//-----------------------------------------------------------------------------
// Teleporter destination functions.

function PostBeginPlay()
{
    if (URL ~= "")
        SetCollision(false, false, false); //destination only
        
    if ( !bEnabled )
        FindTriggerActor();
    Super.PostBeginPlay();
}

function FindTriggerActor()
{
    local Actor A;

    TriggerActor = None;
    TriggerActor2 = None;
    ForEach AllActors(class 'Actor', A)
        if ( A.Event == Tag)
        {
            if ( Counter(A) != None )
                return; //FIXME - handle counters
            if (TriggerActor == None)
                TriggerActor = A;
            else
            {
                TriggerActor2 = A;
                return;
            }
        }
}

// Accept an actor that has teleported in.
function bool Accept( actor Incoming )
{
    local rotator newRot, oldRot;
    local int oldYaw;
    local float mag;
    local vector oldDir;
    local pawn P;

    // Move the actor here.
    Disable('Touch');
    //log("Move Actor here "$tag);
    newRot = Incoming.Rotation;
    if (bChangesYaw)
    {
        oldRot = Incoming.Rotation;
        newRot.Yaw = Rotation.Yaw;
    }

    if ( Pawn(Incoming) != None )
    {
        //tell enemies about teleport
        P = Level.PawnList;
        While ( P != None )
        {
            if (P.Enemy == Incoming)
                P.LastSeenPos = Incoming.Location; 
            P = P.nextPawn;
        }
        Pawn(Incoming).SetLocation(Location);
        Pawn(Incoming).ClientSetRotation(newRot);
        Pawn(Incoming).MoveTimer = -1.0;
        Pawn(Incoming).MoveTarget = self;
    }
    else
    {
        if ( !Incoming.SetLocation(Location) )
            return false;
        if ( bChangesYaw )
            Incoming.SetRotation(newRot);
    }

    Enable('Touch');

    
    if (bChangesVelocity)
        Incoming.Velocity = TargetVelocity;
    else
    {
        if ( bChangesYaw )
        {
            if ( Incoming.Physics == PHYS_Walking )
                OldRot.Pitch = 0;
            oldDir = vector(OldRot);
            mag = Incoming.Velocity Dot oldDir;     
            Incoming.Velocity = Incoming.Velocity - mag * oldDir + mag * vector(Incoming.Rotation);
        } 
        if ( bReversesX )
            Incoming.Velocity.X *= -1.0;
        if ( bReversesY )
            Incoming.Velocity.Y *= -1.0;
        if ( bReversesZ )
            Incoming.Velocity.Z *= -1.0;
    }   

    // Play teleport-in effect.
    PlayTeleportEffect(Incoming, true);
    return true;
}

function PlayTeleportEffect(actor Incoming, bool bOut)
{
    if ( Incoming.IsA('Pawn') )
    {
        Incoming.MakeNoise(1.0);
        Level.Game.PlayTeleportEffect(Incoming, bOut, true);
    }
}

//-----------------------------------------------------------------------------
// Teleporter functions.

function Trigger( actor Other, pawn EventInstigator )
{
    local int i;

    bEnabled = !bEnabled;
    if ( bEnabled ) //teleport any pawns already in my radius
        for (i=0;i<4;i++)
            if ( Touching[i] != None )
                Touch(Touching[i]);
}

// Teleporter was touched by an actor.
function Touch( actor Other )
{
    local Teleporter Dest;
    local int i;
    local Actor A;
    
    if ( !bEnabled )
        return;

    if( Other.bCanTeleport && Other.PreTeleport(Self)==false )
    {
        if( (InStr( URL, "/" ) >= 0) || (InStr( URL, "#" ) >= 0) )
        {
            // Teleport to a level on the net.
            if( PlayerPawn(Other) != None )
                Level.Game.SendPlayer(PlayerPawn(Other), URL);
        }
        else
        {
            // Teleport to a random teleporter in this local level, if more than one pick random.
            foreach AllActors( class 'Teleporter', Dest )
                if( string(Dest.tag)~=URL && Dest!=Self )
                    i++;
            i = rand(i);
            foreach AllActors( class 'Teleporter', Dest )
                if( string(Dest.tag)~=URL && Dest!=Self && i-- == 0 )
                    break;
            if( Dest != None )
            {
                // Teleport the actor into the other teleporter.
                if ( Other.IsA('Pawn') )
                    PlayTeleportEffect( Pawn(Other), false);
                Dest.Accept( Other );
                if( (Event != '') && (Other.IsA('Pawn')) )
                    foreach AllActors( class 'Actor', A, Event )
                        A.Trigger( Other, Other.Instigator );
            }
            else Pawn(Other).ClientMessage( "Teleport destination not found!" );
        }
    }
}

/* SpecialHandling is called by the navigation code when the next path has been found.  
It gives that path an opportunity to modify the result based on any special considerations
*/

function Actor SpecialHandling(Pawn Other)
{
    local int i;
    if ( bEnabled )
    {
        for (i=0;i<4;i++)
            if (Touching[i] == Other)
                Touch(Other); 
        return self;
    }

    if (TriggerActor == None)
    {
        FindTriggerActor();
        if (TriggerActor == None)
            return None;
    }

    if ( (TriggerActor2 != None) 
        && (VSize(TriggerActor2.Location - Other.Location) < VSize(TriggerActor.Location - Other.Location)) )
        return TriggerActor2;
                    
    return TriggerActor;            
}   
    

defaultproperties
{
     bEnabled=True
     bDirectional=True
     Texture=Texture'Engine.S_Teleport'
     SoundVolume=128
     CollisionRadius=18.000000
     CollisionHeight=40.000000
     bCollideActors=True
}

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Class file time: Sun 21/2/2010 23:48:40.000 - Creation time: Sun 21/2/2010 23:49:53.880 - Created with UnCodeX