UnrealGame.HoldObjective

//==============================================================================
// HoldObjective
//==============================================================================
// Created by Laurent Delayen
// © 2003, Epic Games, Inc.  All Rights Reserved
//==============================================================================

class HoldObjective extends ProximityObjective;

var()   name            MoverTag;
var     Array<Mover>    LinkedMover;

struct TouchingPlayer
{
    var Controller  C;
    var float       TouchTime;
};

var array<TouchingPlayer>   TouchingPlayers;        // List of touching players (for score sharing)
var Controller              LastPlayerTouching;

var array<Actor>    Touchers;       // List of touching actors (used for TrueTouch() en TrueUnTouch() events)

var float   TotalHeldTime;
var bool    bIsHeld, bIsTriggerControl;

var()   bool    bLocationFX;
var     Emitter LocationFX;

replication
{
    unreliable if ( (Role==ROLE_Authority) && bReplicateObjective && bNetDirty )
        bIsHeld;
}


simulated function PostBeginPlay()
{
    local Mover myMover;

    super.PostBeginPlay();

    if ( MoverTag == '' )
        warn( Self @ "MoverTag not defined!!!" );
    else
    {
        ForEach AllActors(class'Mover', myMover, MoverTag)
        {
            if ( myMover.InitialState == 'TriggerControl' )
                bIsTriggerControl = true;

            LinkedMover[LinkedMover.Length] = myMover;
            if ( myMover.Event == '' )
                warn( myMover @ "doesn't have it's Event set. It should trigger back the HoldObjective" @ Self );
        }
    }
}

/* TellBotHowToDisable()
tell bot what to do to disable me.
return true if valid/useable instructions were given
*/
function bool TellBotHowToDisable(Bot B)
{
    local Bot NextBot;
    if ( (VSize(B.Pawn.Location - Location) < 1000) && B.LineOfSightTo(self) )
    {
        // if teammate already touching, then don't need to
        for ( NextBot=B.Squad.SquadMembers; NextBot!=None; NextBot=NextBot.NextSquadMember )
            if ( (NextBot != B) && (NextBot.Pawn != None) && NextBot.Pawn.ReachedDestination(self) )
                return false;
    }
    if ( (B.Enemy != None) && (B.Skill > 4*FRand()) && (B.Pawn.Health < 250 * FRand()) && B.Pawn.ReachedDestination(self) )
        B.bShieldSelf = true;
    return Super.TellBotHowToDisable(B);
}


event Touch( Actor Other )
{
    local Pawn  P;

    P = Pawn( Other );
    if ( P != None && IsRelevant(P, true) )
        AddNewTouchingPlayer( P.Controller );
}

event UnTouch( Actor Other )
{
    local Pawn  P;

    P = Pawn( Other );
    if ( P != None && IsRelevant(P, true) )
        RemoveTouchingPlayer( P.Controller );
}

/* ToucherDied() called when Pawn P dies, to untrigger player only triggers */
function PlayerToucherDied( Pawn P )
{
    RemoveTouchingPlayer( P.GetKillerController() );
}


function AddNewTouchingPlayer( Controller C )
{
    local int               i;
    local TouchingPlayer    TP;

    TP.C = C;
    TP.TouchTime = Level.TimeSeconds;
    TouchingPlayers[TouchingPlayers.Length] = TP;

    bIsHeld = true;
    CheckPlayCriticalAlarm();

    for ( i=0; i<LinkedMover.Length; i++ )
        LinkedMover[i].Trigger( Self, C.Pawn );

    if ( C != None )
    {
        for ( i=0;i<4;i++ )
            if ( C.GoalList[i] == self )
            {
                C.GoalList[i] = None;
                break;
            }
    }
}

function RemoveTouchingPlayer( Controller C )
{
    local int   i, j;
    local float HoldTime;

    for ( i=0;i<TouchingPlayers.Length;i++ )
        if ( TouchingPlayers[i].C == C )
        {
            HoldTime = Level.TimeSeconds - TouchingPlayers[i].TouchTime;
            if ( !bIsTriggerControl && HoldTime > 0 )
            {
                AddScorer( C, HoldTime );
                TotalHeldTime += HoldTime;
            }
            LastPlayerTouching = C;
            DelayedDamageInstigatorController = C;
            TouchingPlayers.Remove(i,1);
            if ( TouchingPlayers.Length == 0 )
            {
                bIsHeld = false;
                CheckPlayCriticalAlarm();
            }

            for ( j=0;j<LinkedMover.Length;j++ )
            {
                LinkedMover[j].UnTrigger( Self, C.Pawn );
            }

            break;
        }
}


/* Award Assault score to player(s) who completed the objective */
function AwardAssaultScore( int Score )
{
    local int   i;
    local float HoldTime, BestHeldTime;

    // Add touching time of current touchers
    if ( TouchingPlayers.Length > 0 )
        for (i=0; i<TouchingPlayers.Length; i++)
            if ( TouchingPlayers[i].C != None )
            {
                HoldTime = Level.TimeSeconds - TouchingPlayers[i].TouchTime;
                AddScorer( TouchingPlayers[i].C, HoldTime );
                TotalHeldTime += HoldTime;

                // Force Trophy on player currently holding objective for the longest time
                if ( HoldTime > BestHeldTime )
                {
                    BestHeldTime    = HoldTime;
                    DisabledBy      = TouchingPlayers[i].C.PlayerReplicationInfo;
                }
            }

    // Convert Scorers Pct to real Pct...
    for (i=0; i<Scorers.Length; i++)
        Scorers[i].Pct = Scorers[i].Pct / TotalHeldTime;

    ShareScore( Score, "Objective_Completed" );
}

/* Called by mover once completed */
function Trigger(Actor Other, Pawn Instigator)
{
    local int   i;
    local float BestTime;
    local Pawn  RealInstigator;

    if ( bDisabled )
        return;

    if ( bBotOnlyObjective )
    {
        RealInstigator = None;
    }
    else
    {
        // Set the players triggering the objective for the longest time to be the instigator
        if ( TouchingPlayers.Length > 0 )
        {
            for (i=0; i<TouchingPlayers.Length; i++)
            {
                if ( BestTime == 0 || TouchingPlayers[i].TouchTime < BestTime )
                {
                    if ( TouchingPlayers[i].C.Pawn != None )
                    {
                        BestTime            = TouchingPlayers[i].TouchTime;
                        RealInstigator      = TouchingPlayers[i].C.Pawn;
                        LastPlayerTouching  = TouchingPlayers[i].C;         // in case RealInstigator doesn't exist when sharing scores.
                    }
                    else
                        DelayedDamageInstigatorController = TouchingPlayers[i].C;   // Pawn may be dead...
                }
            }
        }

        if ( RealInstigator == None )
        {
            if ( Instigator != None && Instigator.Controller != None )
            {
                RealInstigator      = Instigator;
                LastPlayerTouching  = Instigator.Controller;
            }
            else if ( LastPlayerTouching != None && LastPlayerTouching.Pawn != None )
            {
                RealInstigator = LastPlayerTouching.Pawn;
            }
            else if ( DelayedDamageInstigatorController != None )
            {
                RealInstigator = DelayedDamageInstigatorController.Pawn;
            }
        }
    }

    DisableObjective( RealInstigator );
}

/* triggered by intro cinematic to auto complete objective */
function CompleteObjective( Pawn Instigator )
{
    local int i;

    for ( i=0;i<LinkedMover.Length;i++ )
        LinkedMover[i].Trigger( Self, Instigator );
}

/* Reset()
reset actor to initial state - used when restarting level without reloading.
*/
function Reset()
{
    LastPlayerTouching      = None;
    Touchers.Length         = 0;
    TouchingPlayers.Length  = 0;
    TotalHeldTime           = 0;
    bIsHeld                 = false;

    super.Reset();
}

/* returns objective's progress status 1->0 (=disabled)
    Assumes mover(s) only have 1 keyframe */
simulated function float GetObjectiveProgress()
{
    local int   i, BestMover;
    local float BestTime;

    if ( !bDisabled && LinkedMover.Length > 0 )
    {
        // If linked to several movers, pick longest MoveTime
        for ( i=0;i<LinkedMover.Length;i++ )
            if ( LinkedMover[i].MoveTime > BestTime )
            {
                BestTime    = LinkedMover[i].MoveTime;
                BestMover   = i;
            }

        if ( LinkedMover[BestMover].KeyNum >= LinkedMover[BestMover].PrevKeyNum )
            return  (1.f - LinkedMover[BestMover].PhysAlpha);   // opening
        else
            return  LinkedMover[BestMover].PhysAlpha;           // closing
    }
    return 0;
}

/* holdobjective critical when in a critical volume or when holding it */
simulated function bool IsCritical()
{
    return (IsActive() && (bIsCritical || bIsHeld));
}

/* Add pulsing overlay on objective's physical representation */
simulated function SetObjectiveOverlay( bool bShow )
{
    super.SetObjectiveOverlay( bShow );

    // Toggle stand location FX
    if ( bLocationFX && Level.NetMode != NM_DedicatedServer )
    {
        if ( LocationFX == None )
            LocationFX = Spawn(class'FX_HoldObjective', Self,, Location - CollisionHeight*0.95*vect(0,0,1) );

        if ( LocationFX != None )
            LocationFX.bHidden = !bShow;
    }
}

simulated function UpdatePrecacheMaterials()
{
    Level.AddPrecacheMaterial(Material'AS_FX_TX.Emitter.HoldArrow');
    super.UpdatePrecacheMaterials();
}

defaultproperties
{
     bLocationFX=Wahr
     ObjectiveName="Hold Objective"
     ObjectiveTypeIcon=FinalBlend'AS_FX_TX.Icons.OBJ_Hold_FB'
     ObjectiveDescription="Touch and Hold Objective to disable it."
     Objective_Info_Attacker="Hold Objective"
     bReceivePlayerToucherDiedNotify=Wahr
}