private void MoveStrand(Strand strand)
{
Chemoeffector noxious;
strand.Move();
noxious = this.GetClosestRepellor(strand);
if (noxious != null)
{
this.Flee(strand, noxious);
}
else
{
Chemoeffector food;
food = this.GetClosestAttractor(strand);
if (food != null)
{
this.Approach(strand, food);
}
else if (strand.PreviousSensor != 0)
{
strand.Heading = Compass.GetOpposite(strand.Heading);
this.Tumble(strand);
strand.PreviousSensor = 0;
this.CheckCollisions(strand);
}
else
{
this.Tumble(strand);
strand.PreviousSensor = 0;
this.CheckCollisions(strand);
}
}
}
private void CheckCollisions(Strand strand)
{
for (int i = 0; i < _repellents.Count; i++)
{
if (Geometry.GetDistance(strand.Position, _repellents[i].Position) <= 1)
{
this.ProcessCollision(strand, _repellents[i], _repellents, _repellentCollisionAction, () => this.AddRepellent());
}
}
for (int i = 0; i < _attractors.Count; i++)
{
if (Geometry.GetDistance(strand.Position, _attractors[i].Position) <= 1)
{
this.ProcessCollision(strand, _attractors[i], _attractors, _attractorCollisionAction, this.CheckRespawn);
break;
}
}
if (_solidStrands)
{
for (int i = 0; i < _strands.Count; i++)
{
Strand other;
other = _strands[i];
if (!object.ReferenceEquals(strand, other) && strand.Position == other.Position)
{
strand.UndoMove();
strand.Heading = _movementRandom.NextDouble() >= 0.5 ? Compass.GetNextQuarter(strand.Heading) : Compass.GetPreviousQuarter(strand.Heading);
break;
}
}
}
}