public List <List <LinkedShape> > FormGroupsWithNeighbors(float propagate, Vector3 propagationDirection, int maxGroupSize, Vector3 originPoint)
{
List <LinkedShape> picked = new List <LinkedShape>();
List <LinkedShape> potentials = new List <LinkedShape>();
propagationDirection.Normalize();
//propagate *= 0.6f;
this.cost = 0;
potentials.Add(this);
bool hasPicked = true;
while (hasPicked)
{
hasPicked = false;
LinkedShape recorder = null;
float record = propagate;
//Trouve le potentiel noeud le moins cher. Les noeuds avec un coup plus grand que 'propagate' ne seront jamais choisient
foreach (LinkedShape item in potentials)
{
if (item.cost <= record)
{
record = item.cost;
recorder = item;
}
}
//Ajoue d'un nouveau noeud
if (recorder != null)
{
potentials.Remove(recorder);
recorder.AddToPickedList(picked, potentials, propagationDirection, originPoint);
hasPicked = true;
}
}
List <List <LinkedShape> > groupList = new List <List <LinkedShape> >();
foreach (LinkedShape item in picked)
{
groupList.Add(new List <LinkedShape>(1)
{
item
});
}
return(groupList);
}
void OnCollisionEnter(Collision collision)
{
if (collision.impulse.magnitude < hardness * massPerBlock || linkedShapes.Count <= 1)
{
return;
}
//Ignore la collision avec sois meme
if (collision.transform != null && collision.transform.GetComponent <FragmentTree>() != null)
{
if (collision.transform.GetComponent <FragmentTree>().original == original)
{
return;
}
}
//Trouve la piece qui s'est fait frappé
LinkedShape hitShape = null;
foreach (LinkedShape shape in linkedShapes)
{
if (shape.shape.tr == collision.contacts[0].thisCollider.transform)
{
hitShape = shape;
break;
}
}
if (hitShape == null)
{
return;
}
float quantitéDeMouvement = 0;
if (collision.rigidbody != null)
{
quantitéDeMouvement = collision.relativeVelocity.magnitude * collision.rigidbody.mass;
}
else
{
quantitéDeMouvement = collision.relativeVelocity.magnitude * myRb.mass;
}
//Pour fix le 'je tombe sur le sol et je me fait propulsé dans les airs'
Vector3 otherVel = wasVel + collision.relativeVelocity;
bool addVelocity = myRb.velocity.magnitude < otherVel.magnitude;
Break(hitShape, collision.contacts[0].point, -collision.impulse, quantitéDeMouvement, addVelocity);
}
void Break(LinkedShape shape, Vector3 point, Vector3 force, float quantitéDeMouvement, bool addVelocity)
{
if (linkedShapes.Count <= 1)
{
return;
}
if (intactVisual != null)
{
intactVisual.enabled = false;
}
//double time1 = EditorApplication.timeSinceStartup;
Vector3 dir = force.normalized;
float propagation = Mathf.Max(0, 0.025f * force.magnitude / (0.5f + elasticity) / massPerBlock);
List <List <LinkedShape> > groups = shape.FormGroupsWithNeighbors(propagation, force.normalized, Mathf.Max(linkedShapes.Count / 2, 1), point);
//Validate neighbors
int totalInGroups = 0;
for (int i = 0; i < groups.Count; i++)
{
totalInGroups += groups[i].Count;
foreach (LinkedShape item in groups[i])
{
item.ValidateNeighbors(groups[i]);
}
}
int skipLastGroup = linkedShapes.Count > totalInGroups ? 0 : 1;
//Remove groups from list
for (int i = 0; i < groups.Count - skipLastGroup; i++)
{
List <LinkedShape> group = groups[i];
foreach (LinkedShape item in group)
{
linkedShapes.Remove(item);
}
}
//Parcourt de l'arbre pour séparé les région qui ne sont plus en contact
List <List <LinkedShape> > newGroups = FindSeperatedRegions();
for (int i = 0; i < newGroups.Count; i++)
{
totalInGroups += newGroups[i].Count;
foreach (LinkedShape item in newGroups[i])
{
item.ValidateNeighbors(newGroups[i]);
}
}
//Remove newGroups from list
for (int i = 0; i < newGroups.Count; i++)
{
foreach (LinkedShape item in newGroups[i])
{
linkedShapes.Remove(item);
}
}
//Ajoute les nouveaux groupes à la liste
groups.AddRange(newGroups);
//Kinematic settings
bool resetKinematic = false;
if (myRb.isKinematic)
{
resetKinematic = true;
myRb.isKinematic = false;
}
Vector3 oldMassCenter = myRb.worldCenterOfMass;
float velocityChange = quantitéDeMouvement / (totalInGroups * massPerBlock);
//Nouveaux blocka
for (int i = 0; i < groups.Count - skipLastGroup; i++)
{
List <LinkedShape> group = groups[i];
FragmentTree newTree = Instantiate(newChunkPrefab.gameObject).GetComponent <FragmentTree>();
newTree.linkedShapes = group;
newTree.hardness = hardness;
newTree.debugDraw = debugDraw;
newTree.relinkTree = false;
newTree.newChunkPrefab = newChunkPrefab;
newTree.elasticity = elasticity;
newTree.original = original;
newTree.massPerBlock = massPerBlock;
Rigidbody rb = newTree.GetComponent <Rigidbody>();
rb.velocity = myRb.velocity;
rb.angularVelocity = myRb.angularVelocity;
rb.mass = newTree.linkedShapes.Count * massPerBlock;
rb.drag = myRb.drag;
rb.angularDrag = myRb.angularDrag;
rb.ResetCenterOfMass();
foreach (LinkedShape item in group)
{
item.shape.tr.SetParent(newTree.transform, true);
}
Vector3 dist = rb.worldCenterOfMass - point;
float alignment = Vector3.Dot(dist.normalized, dir); //de 0 à 1
//float forceRatio = Mathf.Max(1.5f + 0.5f*alignment, 0.1f); // REMOVE
float distanceFactor = Mathf.Pow(1 / (dist.magnitude + 1), elasticity); // de 0 à 1
Vector3 addVel = dir * velocityChange * alignment * distanceFactor * 2;
//print("remains: " + alignment * distanceFactor + " vel: " + addVel);
if (addVelocity)
{
rb.AddForceAtPosition(addVel, point, ForceMode.VelocityChange);
}
//rb.AddExplosionForce(force.magnitude*forceRatio, point, 10, 0);
}
//Reset mass settings
myRb.ResetCenterOfMass();
myRb.mass = linkedShapes.Count * massPerBlock;
if (resetKinematic)
{
Vector3 newCenterOfMass = myRb.worldCenterOfMass;
if (oldMassCenter.y < newCenterOfMass.y)
{
myRb.isKinematic = false;
}
else
{
myRb.isKinematic = true;
}
}
}
