public static Vector2 Avoidance(Boid boid, List <Boid> boids)
{
var radius = 25;
var avoid = new Vector2();
var count = 0;
foreach (Boid other in boids)
{
if (Math.Abs((boid.cellPosition - other.cellPosition).Length()) > 1)
{
continue;
}
var distance = Vector2.Distance(boid.position, other.position);
if (distance < radius && distance > 0)
{
avoid += (boid.position - other.position) / (float)Math.Pow(distance, 2);
count++;
}
}
if (count != 0)
{
avoid /= count;
}
if (avoid.Length() > 0)
{
avoid.Normalize();
}
else
{
avoid = Vector2.Zero;
}
return(avoid);
}
public void Remove(Boid boid)
{
boids.Remove(boid);
}
public void Add(Boid boid)
{
boids.Add(boid);
}