public virtual void Roam()
{
LookDirection = new TGCVector3(LookDirection.X, 0, LookDirection.Z); // Elimino la componente Y para que roamee al nivel que esta del agua
timeSinceLastDirection += GameInstance.ElapsedTime;
TGCVector3 rotationVector = TGCVector3.Empty;
if (timeSinceLastDirection > timeToChangeDirection)
{
timeSinceLastDirection = 0f;
timeToChangeDirection = MathExtended.GetRandomNumberBetween(2, 5);
float randomX = MathExtended.GetRandomNumberBetween(-100, 100);
float randomZ = MathExtended.GetRandomNumberBetween(-100, 100);
TGCVector3 lastDirection = LookDirection;
LookDirection = TGCVector3.Normalize(new TGCVector3(randomX, LookDirection.Y, randomZ));
float angle = MathExtended.AngleBetween(new TGCVector2(lastDirection.X, lastDirection.Z), new TGCVector2(LookDirection.X, LookDirection.Z));
rotationVector.Y = -angle;
}
rotation += rotationVector;
Position += LookDirection * roamingSpeed * GameInstance.ElapsedTime;
TGCMatrix rot = TGCMatrix.RotationY(rotation.Y);
TGCMatrix trans = TGCMatrix.Translation(Position);
TGCMatrix scal = TGCMatrix.Scaling(scale);
Transform = scal * rot * trans;
}
private void Chase()
{
LookDirection = TGCVector3.Normalize(GameInstance.Player.Position - Position);
TGCVector3 rotationAxis = TGCVector3.Cross(InitialLookDirection, LookDirection); // Ojo el orden - no es conmutativo
TGCQuaternion rotationQuat = TGCQuaternion.RotationAxis(rotationAxis, MathExtended.AngleBetween(InitialLookDirection, LookDirection));
TGCVector3 nextPosition = Position + LookDirection * chasingSpeed * GameInstance.ElapsedTime;
TGCMatrix translationMatrix = TGCMatrix.Translation(nextPosition);
TGCMatrix rotationMatrix = TGCMatrix.RotationTGCQuaternion(rotationQuat);
TGCMatrix nextTransform = rotationMatrix * translationMatrix;
SimulateAndSetTransformation(nextPosition, nextTransform);
}