protected override Vector2 OnUpdateSteeringForce(float elapsedTime, Steerable movingEntity)
{
// Not necessary to include the check for facing direction this time
Vector2 toPursuer = Pursuer.Position - movingEntity.Position;
//uncomment the following two lines to have Evade only consider pursuers
//within a 'threat range'
if (toPursuer.LengthSquared() > ThreatRange * ThreatRange)
{
return(Vector2.Zero);
}
//the lookahead time is propotional to the distance between the pursuer
//and the pursuer; and is inversely proportional to the sum of the
//agents' velocities
float LookAheadTime = toPursuer.Length() / (movingEntity.MaxSpeed + Pursuer.Speed);
//now flee away from predicted future position of the pursuer
return(SteeringHelper.Flee(elapsedTime, movingEntity, Pursuer.Position + Pursuer.Velocity * LookAheadTime));
}
protected override Vector2 OnUpdateSteeringForce(float elapsedTime, Steerable movingEntity)
{
return(SteeringHelper.Flee(elapsedTime, movingEntity, Target));
}
