// Cohesion
public void Cohere(ref Vector3 v)
{
BoidsEntity boidsEntity = this.GetComponent <BoidsEntity>();
BoidsImpl closestImpl = this.GetClosestBoidImpl();
if (closestImpl == null)
{
return;
}
float distance = Vector3.Distance(this.transform.position, closestImpl.transform.position);
if (distance > boidsEntity.cohesionDistance)
{
return;
}
if (distance > boidsEntity.alignmentDistance && distance > boidsEntity.separateDistance)
{
v += closestImpl.transform.position - this.transform.position;
}
if (this.followOnlyLeader && closestImpl != null)
{
this.followingLeader = true;
}
}
// Start is called before the first frame update
void Start()
{
this.boidImpl = this.gameObject.GetComponent <BoidsImpl>();
DisolveSpriteAnimation animation = this.GetComponent <DisolveSpriteAnimation>();
this.initialColor = animation.GetColor();
}
private BoidsImpl GetClosestBoidImpl(bool findLeaderBoid = false)
{
BoidsImpl closestImpl = null;
BoidsEntity boidsEntity = this.GetComponent <BoidsEntity>();
GameObject boidsContainer = boidsEntity.config.GetBoidsContainer();
if (boidsContainer == null)
{
return(closestImpl);
}
float closestDistance = -1.0f;
// NOTE: Since this is first person boids, every BoidsEntity checks distance for every each other BoidsEntity.
// To consider performance, this should be done in third person logic.
BoidsImpl[] impls = boidsContainer.GetComponentsInChildren <BoidsImpl>();
Vector3 pos = this.transform.position;
for (int i = 0; i < impls.Length; i++)
{
BoidsImpl impl = impls[i];
if (this.followOnlyLeader && !impl.isLeader)
{
continue;
}
// ignore self
if (GameObject.ReferenceEquals(this.gameObject, impl.gameObject))
{
continue;
}
float distance = Vector3.Distance(impl.transform.position, pos);
if (closestDistance < 0 || distance < closestDistance)
{
closestDistance = distance;
closestImpl = impl;
}
}
return(closestImpl);
}
