void OnCollisionEnter(Collision collision)
{
if (FracturedObjectSource == null || collision == null)
{
return;
}
if (collision.contacts == null)
{
return;
}
if (collision.contacts.Length == 0)
{
return;
}
if (collision.gameObject)
{
FracturedChunk otherChunk = collision.gameObject.GetComponent <FracturedChunk>();
if (otherChunk)
{
if (otherChunk.rigidbody.isKinematic && IsDetachedChunk == false)
{
// Just intersecting with other chunk in kinematic state
return;
}
}
}
float fMass = Mathf.Infinity; // If there is no rigidbody we consider it static
if (collision.rigidbody)
{
fMass = collision.rigidbody.mass;
}
if (IsDetachedChunk == false)
{
// Chunk still attached.
// We are going to check if the collision is against a free chunk of the same object. This way we prevent chunks pushing each other out, we want to control
// this only through the FractureObject.InterconnectionStrength variable
bool bOtherIsFreeChunkFromSameObject = false;
FracturedChunk otherChunk = collision.gameObject.GetComponent <FracturedChunk>();
if (otherChunk != null)
{
if (otherChunk.IsDetachedChunk == true && otherChunk.FracturedObjectSource == FracturedObjectSource)
{
bOtherIsFreeChunkFromSameObject = true;
}
}
if (bOtherIsFreeChunkFromSameObject == false && collision.relativeVelocity.magnitude > FracturedObjectSource.EventDetachMinVelocity && fMass > FracturedObjectSource.EventDetachMinMass && rigidbody != null && IsDestructibleChunk())
{
CollisionInfo collisionInfo = new CollisionInfo(this, collision, true);
FracturedObjectSource.NotifyDetachChunkCollision(collisionInfo);
if (collisionInfo.bCancelCollisionEvent == false)
{
List <FracturedChunk> listBreaks = new List <FracturedChunk>();
// Impact enough to make it detach. Compute random list of connected chunks that are detaching as well (we'll use the ConnectionStrength parameter).
listBreaks = ComputeRandomConnectionBreaks();
listBreaks.Add(this);
DetachFromObject();
foreach (FracturedChunk chunk in listBreaks)
{
collisionInfo.chunk = chunk;
collisionInfo.bIsMain = false;
collisionInfo.bCancelCollisionEvent = false;
if (chunk != this)
{
FracturedObjectSource.NotifyDetachChunkCollision(collisionInfo);
}
if (collisionInfo.bCancelCollisionEvent == false)
{
chunk.DetachFromObject();
chunk.rigidbody.AddExplosionForce(collision.relativeVelocity.magnitude * FracturedObjectSource.EventDetachExitForce, collision.contacts[0].point, 0.0f, FracturedObjectSource.EventDetachUpwardsModifier);
}
}
}
}
}
else
{
// Free chunk
if (collision.relativeVelocity.magnitude > FracturedObjectSource.EventDetachedMinVelocity && fMass > FracturedObjectSource.EventDetachedMinMass)
{
FracturedObjectSource.NotifyFreeChunkCollision(new CollisionInfo(this, collision, true));
}
}
}
void HandleCollision(Collider other, Vector3 v3CollisionPos, float relativeSpeed)
{
if (FracturedObjectSource == null || other == null)
{
return;
}
if (other.gameObject)
{
FracturedChunk otherChunk = other.gameObject.GetComponent <FracturedChunk>();
if (otherChunk && (other.attachedRigidbody != null))
{
if (other.attachedRigidbody.isKinematic && IsDetachedChunk == false)
{
// Just intersecting with other chunk in kinematic state
return;
}
}
}
float fMass = Mathf.Infinity; // If there is no rigidbody we consider it static
Rigidbody otherRigidbody = other.attachedRigidbody;
if (otherRigidbody != null)
{
fMass = otherRigidbody.mass;
}
if (IsDetachedChunk == false)
{
// Chunk still attached.
// We are going to check if the collision is against a free chunk of the same object. This way we prevent chunks pushing each other out, we want to control
// this only through the FractureObject.InterconnectionStrength variable
bool bOtherIsFreeChunkFromSameObject = false;
FracturedChunk otherChunk = other.gameObject.GetComponent <FracturedChunk>();
if (otherChunk != null)
{
if (otherChunk.IsDetachedChunk == true && otherChunk.FracturedObjectSource == FracturedObjectSource)
{
bOtherIsFreeChunkFromSameObject = true;
}
}
if (bOtherIsFreeChunkFromSameObject == false && relativeSpeed > FracturedObjectSource.EventDetachMinVelocity && fMass > FracturedObjectSource.EventDetachMinMass && (GetComponent <Collider>() != null && GetComponent <Collider>().attachedRigidbody) && IsDestructibleChunk())
{
CollisionInfo collisionInfo = new CollisionInfo(this, v3CollisionPos, true);
FracturedObjectSource.NotifyDetachChunkCollision(collisionInfo);
if (collisionInfo.bCancelCollisionEvent == false)
{
List <FracturedChunk> listBreaks = new List <FracturedChunk>();
// Impact enough to make it detach. Compute random list of connected chunks that are detaching as well (we'll use the ConnectionStrength parameter).
listBreaks = ComputeRandomConnectionBreaks();
listBreaks.Add(this);
DetachFromObject();
foreach (FracturedChunk chunk in listBreaks)
{
collisionInfo.chunk = chunk;
collisionInfo.bIsMain = false;
collisionInfo.bCancelCollisionEvent = false;
if (chunk != this)
{
FracturedObjectSource.NotifyDetachChunkCollision(collisionInfo);
}
if (collisionInfo.bCancelCollisionEvent == false)
{
chunk.DetachFromObject();
chunk.GetComponent <Collider>().attachedRigidbody.AddExplosionForce(relativeSpeed * FracturedObjectSource.EventDetachExitForce, otherRigidbody.transform.position, 0.0f, FracturedObjectSource.EventDetachUpwardsModifier);
}
}
}
}
}
else
{
// Free chunk
Rigidbody myRigidbody = GetComponent <Collider>().attachedRigidbody;
Vector3 otherVelocity = otherRigidbody != null ? otherRigidbody.velocity : Vector3.zero;
float relativeSpeedFree = (otherVelocity - myRigidbody.velocity).magnitude;
if (relativeSpeedFree > FracturedObjectSource.EventDetachedMinVelocity && fMass > FracturedObjectSource.EventDetachedMinMass)
{
FracturedObjectSource.NotifyFreeChunkCollision(new CollisionInfo(this, v3CollisionPos, true));
}
}
}
