UTGame.UTWalkerBody_Scavenger

/**
 *
 * Copyright 1998-2008 Epic Games, Inc. All Rights Reserved.
 */

class UTWalkerBody_Scavenger extends UTWalkerBody
	native(Vehicle)
	abstract;

//var	RB_Handle			PawnGrabber[3];
var bool				bIsInBallMode;

/** Have the feet been released by a jump or ballmode */
var bool				bAreFeetReleased;

/** Names of the anim nodes for playing the step anim for a leg.  Used to fill in FootStepAnimNode array. */
var const name			BallAnimNodeName[NUM_WALKER_LEGS];
/** Refs to AnimNodes used for playing step animations */
var AnimNode			BallAnimNode[NUM_WALKER_LEGS];
/** ref to AnimNode for extending/retracting the legs */
var AnimNodeBlendList	RetractionBlend;

/** The beams attaching the legs to the shield */
var ParticleSystemComponent LegAttachBeams[NUM_WALKER_LEGS];
var ParticleSystemComponent OrbConnectionEffect[NUM_WALKER_LEGS];

/** Names of the top leg bones.  LegAttachBeams will terminate here. */
var protected const name	TopLegSocketName[NUM_WALKER_LEGS];
/** Name of beam endpoint parameter in the particle system */
var protected const name	LegAttachBeamEndPointParamName;
/** radius around the body in which the arm attachments will rotate */
var float ShieldRadius;

/** These keep the previous location of the legs and body so that we don't have to do expensive line traces if we have actually not moved their position **/
var protected vector PreviousCenterOfWalkerLocation;
var protected vector PreviousLegLocation[NUM_WALKER_LEGS];

/** Spin Attack desired/current orientation normals */
var Vector DesiredSurfaceNormal;
var Vector CurrentSurfaceNormal;

/** Spin Attack current absolute accrued rotation */
var int SpinRotation;
/** Spin Attack rate of speed */
var int	SpinRate;

var name RetractionBlendName;
var name SphereCenterName;

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/** Set physics to Phys_None */
native function SetPhysicsOff();

/** Set physics back to rigid bodies */
native function SetPhysicsOn();

function PlayDying()
{
	if(!bIsInBallMode)
	{
		UTVehicle_Scavenger(WalkerVehicle).BallStatus.bIsInBallmode = TRUE;
		UTVehicle_Scavenger(WalkerVehicle).BallStatus.bBoostOnTransition = FALSE;
		UTVehicle_Scavenger(WalkerVehicle).BallModeTransition();
	}
}

function PostBeginPlay()
{
	local int Idx;

	Super.PostBeginPlay();

	for (Idx=0; Idx<NUM_WALKER_LEGS; ++Idx)
	{
		// cache refs to footstep anims
		BallAnimNode[Idx] = SkeletalMeshComponent.FindAnimNode(FootStepAnimNodeName[Idx]);
	}

	//Blend node between extended/retracted/walking legs
	RetractionBlend = AnimNodeBlendList(SkeletalMeshComponent.FindAnimNode(RetractionBlendName));
}

simulated event OnAnimEnd(AnimNodeSequence SeqNode, float PlayedTime, float ExcessTime)
{
	local int LegIdx;

	if (SeqNode.AnimSeqName == 'retractlegs')
	{
		SkeletalMeshComponent.PhysicsWeight = 0.f;

        //No more constraints, shoulders are free to move as needed
		for (LegIdx=0; LegIdx<NUM_WALKER_LEGS; ++LegIdx)
		{
			FootConstraints[LegIdx].ReleaseComponent();
			ShoulderSkelControl[LegIdx].SetSkelControlActive(FALSE);
			IgnoreFoot[LegIdx] = 1;
		}
		
		bAreFeetReleased = TRUE;

		Cloak(true);
	}
	else if (SeqNode.AnimSeqName == 'extendlegs')
	{
        //Legs are all the way back out
		SetPhysicsOn();
	}
	else
	{
		Super.OnAnimEnd(SeqNode, PlayedTime, ExcessTime);
	}
}

simulated function RetractLegs()
{
    //Legs are beginning to retract
	//Transition to the retraction animation
	RetractionBlend.SetActiveChild(1, 0.1);
	RetractionBlend.Children[1].Anim.PlayAnim(false, 1.2f);

	//Legs are hidden after the animation is finished
    SetPhysicsOff();
}

simulated function ExtendLegs()
{											
	//Transition from retracting legs to extending legs immediately
	RetractionBlend.SetActiveChild(2, 0.0f);

	//Transition back to the walking animation
	RetractionBlend.Children[2].Anim.PlayAnim(FALSE, 1.0f);
	RetractionBlend.SetActiveChild(0, 0.5);

	//Unhide the legs
	Cloak(FALSE);
}

simulated event OnJump()
{
	local int LegIdx;

	//Disable the legs from their constraints
	for (LegIdx=0; LegIdx<3; LegIdx++)
	{
		IgnoreFoot[LegIdx] = 1;
	}

	bAreFeetReleased = TRUE;
}

simulated event OnLanded()
{
	//Catchall in case we never have a downward velocity on jump or the jump is too short
	if (bAreFeetReleased && !UTVehicle_Scavenger(WalkerVehicle).BallStatus.bIsInBallmode &&
		FootConstraints[0].GrabbedComponent == None && 
		FootConstraints[1].GrabbedComponent == None && 
		FootConstraints[2].GrabbedComponent == None)
	{
		InitFeetOnLanding();
		bAreFeetReleased = FALSE;
	}
}

simulated event Cloak(bool bIsEnabled)
{
	SetHidden(bIsEnabled);
}

/** 
 * Called when the actor falls out of the world 'safely' (below KillZ and such) 
 * Overridden here to bind the lifetime of the walker legs to the Scavenger vehicle itself
 */
simulated event FellOutOfWorld(class<DamageType> dmgType)
{
}

defaultproperties
{
   Begin Object Class=SkeletalMeshComponent Name=LegMeshComponent ObjName=LegMeshComponent Archetype=SkeletalMeshComponent'UTGame.Default__UTWalkerBody:LegMeshComponent'
      ObjectArchetype=SkeletalMeshComponent'UTGame.Default__UTWalkerBody:LegMeshComponent'
   End Object
   SkeletalMeshComponent=LegMeshComponent
   Begin Object Class=UTWalkerStepHandle Name=RB_FootHandle0 ObjName=RB_FootHandle0 Archetype=UTWalkerStepHandle'UTGame.Default__UTWalkerBody:RB_FootHandle0'
      ObjectArchetype=UTWalkerStepHandle'UTGame.Default__UTWalkerBody:RB_FootHandle0'
   End Object
   FootConstraints(0)=RB_FootHandle0
   Begin Object Class=UTWalkerStepHandle Name=RB_FootHandle1 ObjName=RB_FootHandle1 Archetype=UTWalkerStepHandle'UTGame.Default__UTWalkerBody:RB_FootHandle1'
      ObjectArchetype=UTWalkerStepHandle'UTGame.Default__UTWalkerBody:RB_FootHandle1'
   End Object
   FootConstraints(1)=RB_FootHandle1
   Begin Object Class=UTWalkerStepHandle Name=RB_FootHandle2 ObjName=RB_FootHandle2 Archetype=UTWalkerStepHandle'UTGame.Default__UTWalkerBody:RB_FootHandle2'
      ObjectArchetype=UTWalkerStepHandle'UTGame.Default__UTWalkerBody:RB_FootHandle2'
   End Object
   FootConstraints(2)=RB_FootHandle2
   StepStageTimes(0)=0.450000
   StepStageTimes(1)=0.100000
   StepStageTimes(2)=0.500000
   MinStepDist=100.000000
   MaxLegReach=475.000000
   LegSpreadFactor=0.650000
   LandedFootDistSq=2500.000000
   FootEmbedDistance=16.000000
   FootPosVelAdjScale(0)=0.150000
   FootPosVelAdjScale(1)=0.150000
   FootPosVelAdjScale(2)=0.150000
   FootStepAnimNodeName(0)="Leg0 Step"
   FootStepAnimNodeName(1)="Leg1 Step"
   FootStepAnimNodeName(2)="Leg2 Step"
   FootStepStartLift=300.000000
   FootStepEndLift=100.000000
   Begin Object Class=DynamicLightEnvironmentComponent Name=LegLightEnvironmentComp ObjName=LegLightEnvironmentComp Archetype=DynamicLightEnvironmentComponent'UTGame.Default__UTWalkerBody:LegLightEnvironmentComp'
      ObjectArchetype=DynamicLightEnvironmentComponent'UTGame.Default__UTWalkerBody:LegLightEnvironmentComp'
   End Object
   LegLightEnvironment=LegLightEnvironmentComp
   MaxFootStepEffectDist=3000.000000
   Components(0)=LegLightEnvironmentComp
   Components(1)=LegMeshComponent
   Components(2)=RB_FootHandle0
   Components(3)=RB_FootHandle1
   Components(4)=RB_FootHandle2
   CollisionComponent=LegMeshComponent
   Name="Default__UTWalkerBody_Scavenger"
   ObjectArchetype=UTWalkerBody'UTGame.Default__UTWalkerBody'
}