Off Topic Productions

Me and WCCC are working on a soccer mod for DXMP. We're having a problem with the soccerball code. When the ball is about to stop bouncing it starts shaking like mad for a little while before it stops rolling. Does anyone know how to fix this? Here's the code.

Code: Select all

//=============================================================================
// Football.
//=============================================================================
class Football extends PoolBall;

//our adjustable (by mapper) z axis multipliers, velocity multipliers, and gravity multiplier
var(SoccerPhysics) float BumpMult, FrobZMult, KickPower, GravityRate;
var DeusExPlayer LastInvoker;

var float rollTimer;
var float pushTimer;
var vector pushVel;
var bool bJustPushed;

function BeginPlay()
{
 Super(DeusExDecoration).BeginPlay();
}

/*function StartRolling(vector vel)
{
	// Transfer momentum
	SetPhysics(PHYS_Rolling);
	pushVel = (Vel + (vect(0,0,1) * BumpZMult)) * BumpPower;
	pushVel.Z = 0;
	Velocity = pushVel;
	rollTimer = 2;
	bJustPushed = True;
	pushTimer = 0.5;
	//AmbientSound = Sound'UtilityCart';
}*/

//
// give us velocity in the direction of the push
//
//---------------------------------------------
//Note: this guy already compensates for mass!
//Adjust mass to adjust bump speed! ~WCCC
/*function Bump(actor Other)
{
	if (bJustPushed)
		return;

	if ((Other != None) && (Physics != PHYS_Falling))
		if (abs(Location.Z-Other.Location.Z) < (CollisionHeight+Other.CollisionHeight-1))  // no bump if landing on cart
		{
			if (Other.IsA('DeusExPlayer')) LastInvoker = DeusExPlayer(Other);
			StartRolling(0.25*Other.Velocity*Other.Mass/Mass);
		}
}*/

//========================
//We use this guy now.
//========================
function Bump(actor Other)
{
 local Vector HitNormal;

 if (Other.IsA('DeusExPlayer'))
 {
  if (!bJustHit)
  {
   LastInvoker = DeusExPlayer(Other);

   //PlaySound(sound'PoolballClack', SLOT_None);
   HitNormal = Normal(Location - Other.Location);
   Velocity = HitNormal * VSize(Other.Velocity) * BumpMult;
   Velocity.Z = 0;
   bJustHit = True;
  // Poolball(Other).bJustHit = True;
   SetTimer(0.02, False);
  // Poolball(Other).SetTimer(0.02, False);
  }
 }
}

//
// simulate less friction (wheels)
//
function Tick(float deltaTime)
{
 Super.Tick(deltaTime);

   if ((Physics == PHYS_Rolling) && (rollTimer > 0))
   {
   rollTimer -= deltaTime;

   if (PushVel.Z > 0) pushVel.Z -= deltaTime * GravityRate;
   Velocity = pushVel;

   if (pushTimer > 0)
   pushTimer -= deltaTime;
   else
   bJustPushed = False;
   }

   if ((Physics == PHYS_Falling) && VSize(Velocity) > 20)
   Velocity = Velocity - (vect(0,0,1) * deltaTime * GravityRate);

   bFixedRotationDir = True;

   if (VSize(Velocity) > 50)
    RotationRate = Rotator(Velocity / 3);
   else
    RotationRate = Rot(0,0,0);

 // make the sound pitch depend on the velocity
 if (VSize(Velocity) > 1)
 {
  //SoundPitch = Clamp(2*VSize(Velocity), 32, 64);
 }
 else
 {
  // turn off the sound when it stops
  //AmbientSound = None;
  //SoundPitch = Default.SoundPitch;
 }
}

event HitWall(vector HitNormal, actor HitWall)
{
	local float speed;

	Velocity = 0.8*((Velocity dot HitNormal) * HitNormal * (-2.0) + Velocity);   // Reflect off Wall w/damping
	speed = VSize(Velocity);
	bFixedRotationDir = True;
	//RotationRate = RotRand(False);
	if ((Physics != PHYS_Rolling) && (speed < 30) && (HitNormal.Z > 0.7))
	{
		SetPhysics(PHYS_Rolling, HitWall);
		if (Physics == PHYS_None)
			bFixedRotationDir = False;
	}
	else if (speed > 30)
	{
		PlaySound(sound'BasketballBounce', SLOT_None);
		AISendEvent('LoudNoise', EAITYPE_Audio);
	}
}

function Frob(Actor Frobber, Inventory FrobWith)
{
	if (Frobber.IsA('DeusExPlayer'))
	{
	 LastInvoker = DeusExPlayer(Frobber);

	 SetPhysics(PHYS_Falling);
	 if (DeusExPlayer(Frobber).bDuck > 0) Velocity = ((vect(1,0,0) >> LastInvoker.Rotation) + (vect(0,0,2) * FrobZMult)) * KickPower;
	 if (DeusExPlayer(Frobber).bDuck <= 0) Velocity = ((vect(1,0,0) >> LastInvoker.Rotation) + (vect(0,0,1) * FrobZMult)) * KickPower;
	}
}

defaultproperties
{
     bInvincible=True
     ItemName="Football"
     Mesh=LodMesh'Soccermod.FootballMesh'
     CollisionRadius=32.000000
     CollisionHeight=32.000000
     bBounce=True
     Mass=0.000000
     Buoyancy=2.000000

     FrobZMult=0.500000
     BumpMult=4.000000
     KickPower=750.000000
     GravityRate=166.666666
     bPushable=False
     DrawScale=1.500000
     BCanTeleport=True
     RemoteRole=ROLE_SimulatedProxy
     Physics=PHYS_Rolling
}

If you want to know more don't hesitate to ask. I could give you a list of the things we've tried so far or what the ball is supposed to do but I didn't want to start with a long post, considering the code is already long.