public override SteeringVelocity DoCalculate(Entity <Game> owner, ref SteeringVelocity accumulatedSteering)
{
_linear = FixVec2.Zero;
_position = owner.Get <Position>().Value;
Proximity.FindNeighbors(owner, _proximityCallback);
var maxVelocity = owner.Get <MaxVelocity>().Value;
if (_linear.MagnitudeSqr == 0)
{
return(SteeringVelocity.Zero);
}
_linear.Normalize();
_linear.Scale(ref maxVelocity);
return(new SteeringVelocity(_linear));
}
public override SteeringVelocity DoCalculate(Entity <Game> owner, ref SteeringVelocity accumulatedSteering)
{
_averageVelocity = FixVec2.Zero;
var neighborCount = Proximity.FindNeighbors(owner, _proximityCallback);
if (neighborCount > 0)
{
var maxVelocity = owner.Get <MaxVelocity>().Value;
_averageVelocity /= neighborCount;
if (_averageVelocity.MagnitudeSqr == 0)
{
return(SteeringVelocity.Zero);
}
_averageVelocity.Normalize();
_averageVelocity.Scale(ref maxVelocity);
}
return(new SteeringVelocity(_averageVelocity));
}
public override SteeringVelocity DoCalculate(Entity <Game> owner, ref SteeringVelocity accumulatedSteering)
{
_centroid = FixVec2.Zero;
var neighborCount = Proximity.FindNeighbors(owner, _proximityCallback);
if (neighborCount > 0)
{
_centroid /= neighborCount;
_centroid -= owner.Get <Position>().Value;
if (_centroid.MagnitudeSqr == 0)
{
return(SteeringVelocity.Zero);
}
_centroid.Normalize();
var maxVelocity = owner.Get <MaxVelocity>().Value;
_centroid.Scale(ref maxVelocity);
}
return(new SteeringVelocity(_centroid));
}