private void RecalculateRadius()
{
sphere.radius = Mathf.Pow((3 * volume) / (4 * Mathf.PI), ONE_THIRD);
//check to see if we're big enough for irregular objects to stop making us bounce irregularly
int irregulars = irregularCollectibles.Count;
for (int i = irregulars - 1; i >= 0; --i)
{
CollectibleObject collectible = irregularCollectibles[i];
if (!collectible.IsIrregular(sphere.radius))
{
Debug.Log("irregular rolled in");
irregularCollectibles.RemoveAt(i);
if (collectible.rB == null)
{
collectible.rB = collectible.gameObject.AddComponent <Rigidbody>();
}
collectible.rB.mass = 0;
collectible.rB.detectCollisions = false;
collectible.rB.isKinematic = true;
}
}
}
void OnDetach(CollectibleObject detached)
{
audioSource.PlayOneShot(detached.detachClip);
//this could be improved by using a Dictionary and adding some sort of id to collectibles.
collectibles.Remove(detached);
if (irregularCollectibles.Contains(detached))
{
irregularCollectibles.Remove(detached);
}
if (!detached.IsIrregular(sphere.radius))
{
rB.mass -= detached.mass;
}
mass -= detached.mass;
volume -= detached.volume;
RecalculateRadius();
detached.Detach(this);
EventManager.Detach(detached, sphere.radius * 2);
}
private bool OnContact(Collision collision)
{
bool rolledUp = false;
Transform t = collision.transform;
CollectibleObject collectible = t.GetComponent <CollectibleObject>();
if (collectible)
{
if (collectible.mass < mass * ROLL_UP_MAX_RATIO)
{
if (!collectible.collected)
{
AudioClip clip = collectible.GetRandomCollectAudio();
if (clip)
{
audioSource.PlayOneShot(clip);
}
//collect the thing we hit!
collectible.collected = true;
rolledUp = true;
collectible.gameObject.layer = 9;
collectible.Attach(this);
t.parent = transform;
volume += collectible.volume;
mass += collectible.mass;
rB.mass += collectible.mass;
RecalculateRadius();
collectibles.Add(collectible);
Vector3 delta = (collectible.transform.position - transform.position);
float distance = delta.magnitude - sphere.radius;
Vector3 direction = delta.normalized;
collectible.transform.position = collectible.transform.position - direction * distance;
EventManager.Attach(collectible, sphere.radius * 2);
//large or irregular objects will make our katamari bounce differently until it grows large enough
if (collectible.IsIrregular(sphere.radius))
{
Destroy(collectible.rB);
irregularCollectibles.Add(collectible);
}
else
{
collectible.rB.mass = 0;
collectible.rB.detectCollisions = false;
collectible.rB.isKinematic = true;
}
}
}
else
{
//decide how many objects to break off, then break them off.
float magnitude = collision.relativeVelocity.magnitude;
while (magnitude >= BREAK_OFF_THRESHOLD && collectibles.Count > 0)
{
CollectibleObject toRemove = collectibles[collectibles.Count - 1];
OnDetach(toRemove);
magnitude -= 4.0f;
}
}
}
return(rolledUp);
}