public void destroyParticlesFillShape(FluidFixtureShape shape)
{
for (int i = 0; i < count; i++)
{
if (shape.testPoint(particleBuffer [i].position))
{
destroyParticle(particleBuffer [i], true);
}
}
}
public List <FluidParticle> getParticlesInShape(FluidFixtureShape shape)
{
List <FluidParticle> fp = new List <FluidParticle> ();
for (int i = 0; i < count; i++)
{
if (shape.testPoint(particleBuffer [i].position))
{
fp.Add(particleBuffer[i]);
}
}
return(fp);
}
public override void reportFixtureAndParticle(FluidFixtureShape fixture, FluidParticle fp)
{
//Rigidbody2D body = fixture.GetComponent<Rigidbody2D> ();
Vector2 ap = fp.position;
Vector2 av = fp.velocity;
Ray2D ray = new Ray2D();
//RaycastHit2D hit;
if (fluidSystem.iterationIndex == 0)
{
// // Put 'ap' in the local space of the previous frame
// b2Vec2 p1 = b2MulT(body->m_xf0, ap);
// if (fixture->GetShape()->GetType() == b2Shape::e_circle)
// {
// // Make relative to the center of the circle
// p1 -= body->GetLocalCenter();
// // Re-apply rotation about the center of the
// // circle
// p1 = b2Mul(body->m_xf0.q, p1);
// // Subtract rotation of the current frame
// p1 = b2MulT(body->m_xf.q, p1);
// // Return to local space
// p1 += body->GetLocalCenter();
// }
// // Return to global space and apply rotation of current frame
// input.p1 = b2Mul(body->m_xf, p1);
ray.origin = fp.prevPosition;
}
else
{
ray.origin = ap;
}
ray.direction = av;
//hit = Physics2D.Raycast (ray.origin, ray.direction, av.magnitude * dt);
Physics2D.Raycast(ray.origin, ray.direction, av.magnitude * dt);
//if (hit) {
// b2Vec2 p =
// (1 - output.fraction) * input.p1 +
// output.fraction * input.p2 +
// b2_linearSlop * n;
//Vector2 v = (hit.point - ap) / dt;
// fp.velocity = v;
//Vector2 f = fluidSystem.getParticleMass () * (av - v);
// fluidSystem.particleApplyForce(fp, f);
//}
}
public override void reportFixtureAndParticle(FluidFixtureShape fixture, FluidParticle fp)
{
float d;
Vector2 n;
fixture.computeDistance(fp, out d, out n);
if ((d < fluidSystem.particleDiameter) &&
((fp.flags & FluidParticleType.WallParticle) == 0))
{
Rigidbody2D b = fixture.GetComponent <Rigidbody2D> ();
//Vector2 bp = b.transform.position;
float bm = b.mass;
// b2Vec2 bp = b->GetWorldCenter();
// float32 bI =
// b->GetInertia() - bm * b->GetLocalCenter().LengthSquared();
float invBm = bm > 0 ? 1 / bm : 0;
// float32 invBI = bI > 0 ? 1 / bI : 0;
float invAm = (fp.flags & FluidParticleType.WallParticle) > 0 ? 0 : fluidSystem.getParticleInvMass();
//Vector2 rp = fp.position - bp;
// float rpn = rp * n;
// float32 rpn = b2Cross(rp, n);
// float32 invM = invAm + invBm + invBI * rpn * rpn;
float invM = invAm + invBm;
FluidParticleBodyContact contact = new FluidParticleBodyContact
{
fp = fp,
body = b,
fixture = fixture,
weight = 1 - d * fluidSystem.inverseDiameter,
normal = -n,
mass = invM > 0 ? 1 / invM : 0
};
if (fixture.isTrigger())
{
fluidSystem.triggerContactBuffer.Add(contact);
fixture.notifyOnTrigger(contact);
}
else
{
fluidSystem.bodyContactBuffer.Add(contact);
}
// m_system->DetectStuckParticle(a);
}
}
void queryAABB(FluidFixtureParticleQueryCallback callback, FluidAABB aabb)
{
if (iterationIndex == 0)
{
triggerContactBuffer.Clear();
}
for (int i = 0; i < fixtureBuffer.Count; i++)
{
FluidFixtureShape fixture = fixtureBuffer [i];
if (fixture != null)
{
if (fixture.enabled && fixture.gameObject.activeInHierarchy)
{
if (!fixture.isTrigger() || iterationIndex == 0)
{
FluidAABB fixtureAABB = fixture.getAABB();
if (fixtureAABB.isOverlap(aabb))
{
int lowerTag = computeTag(inverseDiameter * fixtureAABB.lowerBound.x - 1,
inverseDiameter * fixtureAABB.upperBound.y + 1);
int upperTag = computeTag(inverseDiameter * fixtureAABB.upperBound.x + 1,
inverseDiameter * fixtureAABB.lowerBound.y - 1);
int beginProxy = 0;
int endProxy = count - 1;
int firstProxy = findLowerBoundProxy(beginProxy, endProxy, lowerTag);
int lastProxy = findUpperBoundProxy(beginProxy, endProxy, upperTag);
for (int j = firstProxy; j < lastProxy; j++)
{
callback.reportFixtureAndParticle(fixture, proxyBuffer [j].fp);
}
}
}
}
}
else
{
// removeFixture(fi
fixtureBuffer.RemoveAt(i);
i--;
}
}
}
public void createParticlesFillShapeForGroup(FluidFixtureShape shape, FluidParticleDef def)
{
float stride = getParticleStride();
FluidAABB aabb = shape.getAABB();
// Color c = def.color;
for (float y = Mathf.Floor(aabb.lowerBound.y / stride) * stride; y < aabb.upperBound.y; y += stride)
{
for (float x = Mathf.Floor(aabb.lowerBound.x / stride) * stride; x < aabb.upperBound.x; x += stride)
{
Vector2 p = new Vector2(x, y);
if (shape.testPoint(p))
{
def.position = p;
// def.color = new Color(Random.Range(0,2),Random.Range(0,2),Random.Range(0,2));
createParticle(def);
}
}
}
// def.color = c;
}
void Start()
{
shape = GetComponent <FluidFixtureShape> ();
}
public void removeFixture(FluidFixtureShape fixture)
{
fixtureBuffer.Remove(fixture);
fixture.removeFrom(this);
}
public void addFixture(FluidFixtureShape fixture)
{
fixtureBuffer.Add(fixture);
fixture.addTo(this);
}
public abstract void reportFixtureAndParticle(FluidFixtureShape fixture, FluidParticle fp);
