private void FollowerMovement(float attraction, float repulsionStrength, float repulsionDistance)
{
Copter leader = myArena.GetLeader();
foreach (CircleCopter thisCopter in myArena.GetAllCopters())
{
//Attraction:
Vector2 toLeader = leader.Position() - thisCopter.Position();
Vector2 toLeaderNormed = toLeader / (Vector2.Distance(leader.Position(), thisCopter.Position()));
Vector2 attractionMovement = toLeaderNormed * attraction;
//Repulsion from leader:
Vector2 repulsionFromLeader = repulsionStrength * Mathf.Exp(-0.5f * (toLeader.magnitude * toLeader.magnitude) / (repulsionDistance * repulsionDistance)) * toLeader;
//Attraction to and repulsion from other copters:
Vector2 repulsionMovement = new Vector2(0.0f, 0.0f);
foreach (CircleCopter otherCopter in myArena.GetAllCopters())
{
if (thisCopter != otherCopter)
{
CollisionResult cr = thisCopter.CollidesWithCopter(otherCopter);
Vector2 repulsionDirection = cr.CollisionPointThisObject - cr.CollisionPointOtherObject;
Vector2 repulsionVector = repulsionStrength * Mathf.Exp(-0.5f * cr.Distance * cr.Distance / (repulsionDistance * repulsionDistance)) * repulsionDirection;
repulsionMovement += repulsionVector - attraction * repulsionDirection;
}
}
//Position update:
Vector2 update = (attractionMovement + repulsionFromLeader + repulsionMovement).normalized * 0.05f;
thisCopter.SetPosition(thisCopter.Position() + update);
}
}
public static void FollowerMovement(TunnelArena myArena, float speed)
{
List <Copter> followers = myArena.GetAllCopters();//Is the leader part of this list? No!
//bool isLeaderPartOfList = followers.Contains(myArena.GetLeader());
//Debug.Log(isLeaderPartOfList);
foreach (Copter follower in followers)
{
Vector2 movementVector = new Vector2(0.0f, 0.0f);
movementVector += AvoidWalls(follower, myArena, 30, 0.5f);//With repulsionMagnitude = 3 and radius = 0.5f they still sometimes move through walls.
movementVector += SwarmingFormulas.Function3(follower, myArena.GetLeader(), 0.5f, 20.0f, 0.6f);
foreach (Copter otherCopter in followers)
{
if (otherCopter != follower)
{
movementVector += SwarmingFormulas.Function3(follower, otherCopter, 0.3f, 40.0f, 0.6f);
}
}
if (movementVector.magnitude > 1.0f)
{
movementVector.Normalize();
}
follower.SetPosition(follower.Position() + movementVector * speed);
}
}