How to use

computeTag

method

in

org.jbox2d.particle.ParticleSystem

public void queryAABB(ParticleQueryCallback callback, final AABB aabb) {
 if (m_proxyCount == 0) {
  return;
 }
 final float lowerBoundX = aabb.lowerBound.x;
 final float lowerBoundY = aabb.lowerBound.y;
 final float upperBoundX = aabb.upperBound.x;
 final float upperBoundY = aabb.upperBound.y;
 int firstProxy =
   lowerBound(m_proxyBuffer, m_proxyCount,
     computeTag(m_inverseDiameter * lowerBoundX, m_inverseDiameter * lowerBoundY));
 int lastProxy =
   upperBound(m_proxyBuffer, m_proxyCount,
     computeTag(m_inverseDiameter * upperBoundX, m_inverseDiameter * upperBoundY));
 for (int proxy = firstProxy; proxy < lastProxy; ++proxy) {
  int i = m_proxyBuffer[proxy].index;
  final Vec2 p = m_positionBuffer.data[i];
  if (lowerBoundX < p.x && p.x < upperBoundX && lowerBoundY < p.y && p.y < upperBoundY) {
   if (!callback.reportParticle(i)) {
    break;
   }
  }
 }
}

int i = proxy.index;
Vec2 pos = m_positionBuffer.data[i];
proxy.tag = computeTag(m_inverseDiameter * pos.x, m_inverseDiameter * pos.y);

    m_proxyBuffer,
    m_proxyCount,
    computeTag(m_inverseDiameter * MathUtils.min(point1.x, point2.x) - 1, m_inverseDiameter
      * MathUtils.min(point1.y, point2.y) - 1));
int lastProxy =
    m_proxyBuffer,
    m_proxyCount,
    computeTag(m_inverseDiameter * MathUtils.max(point1.x, point2.x) + 1, m_inverseDiameter
      * MathUtils.max(point1.y, point2.y) + 1));
float fraction = 1;

system.m_proxyBuffer,
system.m_proxyCount,
computeTag(system.m_inverseDiameter * aabblowerBoundx, system.m_inverseDiameter
system.m_proxyBuffer,
system.m_proxyCount,
computeTag(system.m_inverseDiameter * aabbupperBoundx, system.m_inverseDiameter

system.m_proxyBuffer,
system.m_proxyCount,
computeTag(system.m_inverseDiameter * aabblowerBoundx, system.m_inverseDiameter
system.m_proxyBuffer,
system.m_proxyCount,
computeTag(system.m_inverseDiameter * aabbupperBoundx, system.m_inverseDiameter

public void queryAABB(ParticleQueryCallback callback, final AABB aabb) {
 if (m_proxyCount == 0) {
  return;
 }
 final float lowerBoundX = aabb.lowerBound.x;
 final float lowerBoundY = aabb.lowerBound.y;
 final float upperBoundX = aabb.upperBound.x;
 final float upperBoundY = aabb.upperBound.y;
 int firstProxy =
   lowerBound(m_proxyBuffer, m_proxyCount,
     computeTag(m_inverseDiameter * lowerBoundX, m_inverseDiameter * lowerBoundY));
 int lastProxy =
   upperBound(m_proxyBuffer, m_proxyCount,
     computeTag(m_inverseDiameter * upperBoundX, m_inverseDiameter * upperBoundY));
 for (int proxy = firstProxy; proxy < lastProxy; ++proxy) {
  int i = m_proxyBuffer[proxy].index;
  final Vec2 p = m_positionBuffer.data[i];
  if (lowerBoundX < p.x && p.x < upperBoundX && lowerBoundY < p.y && p.y < upperBoundY) {
   if (!callback.reportParticle(i)) {
    break;
   }
  }
 }
}

int i = proxy.index;
Vec2 pos = m_positionBuffer.data[i];
proxy.tag = computeTag(m_inverseDiameter * pos.x, m_inverseDiameter * pos.y);

system.m_proxyBuffer,
system.m_proxyCount,
computeTag(system.m_inverseDiameter * aabblowerBoundx, system.m_inverseDiameter
system.m_proxyBuffer,
system.m_proxyCount,
computeTag(system.m_inverseDiameter * aabbupperBoundx, system.m_inverseDiameter

    m_proxyBuffer,
    m_proxyCount,
    computeTag(m_inverseDiameter * MathUtils.min(point1.x, point2.x) - 1, m_inverseDiameter
      * MathUtils.min(point1.y, point2.y) - 1));
int lastProxy =
    m_proxyBuffer,
    m_proxyCount,
    computeTag(m_inverseDiameter * MathUtils.max(point1.x, point2.x) + 1, m_inverseDiameter
      * MathUtils.max(point1.y, point2.y) + 1));
float fraction = 1;

system.m_proxyBuffer,
system.m_proxyCount,
computeTag(system.m_inverseDiameter * aabblowerBoundx, system.m_inverseDiameter
system.m_proxyBuffer,
system.m_proxyCount,
computeTag(system.m_inverseDiameter * aabbupperBoundx, system.m_inverseDiameter

public void queryAABB(ParticleQueryCallback callback, final AABB aabb) {
 if (m_proxyCount == 0) {
  return;
 }
 final float lowerBoundX = aabb.lowerBound.x;
 final float lowerBoundY = aabb.lowerBound.y;
 final float upperBoundX = aabb.upperBound.x;
 final float upperBoundY = aabb.upperBound.y;
 int firstProxy =
   lowerBound(m_proxyBuffer, m_proxyCount,
     computeTag(m_inverseDiameter * lowerBoundX, m_inverseDiameter * lowerBoundY));
 int lastProxy =
   upperBound(m_proxyBuffer, m_proxyCount,
     computeTag(m_inverseDiameter * upperBoundX, m_inverseDiameter * upperBoundY));
 for (int proxy = firstProxy; proxy < lastProxy; ++proxy) {
  int i = m_proxyBuffer[proxy].index;
  final Vec2 p = m_positionBuffer.data[i];
  if (lowerBoundX < p.x && p.x < upperBoundX && lowerBoundY < p.y && p.y < upperBoundY) {
   if (!callback.reportParticle(i)) {
    break;
   }
  }
 }
}

public void queryAABB(ParticleQueryCallback callback, final AABB aabb) {
  if (m_proxyCount == 0) {
    return;
  }
  final float lowerBoundX = aabb.lowerBound.x;
  final float lowerBoundY = aabb.lowerBound.y;
  final float upperBoundX = aabb.upperBound.x;
  final float upperBoundY = aabb.upperBound.y;
  int firstProxy =
      lowerBound(m_proxyBuffer, m_proxyCount,
          computeTag(m_inverseDiameter * lowerBoundX, m_inverseDiameter * lowerBoundY));
  int lastProxy =
      upperBound(m_proxyBuffer, m_proxyCount,
          computeTag(m_inverseDiameter * upperBoundX, m_inverseDiameter * upperBoundY));
  for (int proxy = firstProxy; proxy < lastProxy; ++proxy) {
    int i = m_proxyBuffer[proxy].index;
    final Vec2 p = m_positionBuffer.data[i];
    if (lowerBoundX < p.x && p.x < upperBoundX && lowerBoundY < p.y && p.y < upperBoundY) {
      if (!callback.reportParticle(i)) {
        break;
      }
    }
  }
}

int i = proxy.index;
Vec2 pos = m_positionBuffer.data[i];
proxy.tag = computeTag(m_inverseDiameter * pos.x, m_inverseDiameter * pos.y);

int i = proxy.index;
Vec2 pos = m_positionBuffer.data[i];
proxy.tag = computeTag(m_inverseDiameter * pos.x, m_inverseDiameter * pos.y);

system.m_proxyBuffer,
system.m_proxyCount,
computeTag(system.m_inverseDiameter * aabblowerBoundx, system.m_inverseDiameter
system.m_proxyBuffer,
system.m_proxyCount,
computeTag(system.m_inverseDiameter * aabbupperBoundx, system.m_inverseDiameter

    m_proxyBuffer,
    m_proxyCount,
    computeTag(m_inverseDiameter * MathUtils.min(point1.x, point2.x) - 1, m_inverseDiameter
      * MathUtils.min(point1.y, point2.y) - 1));
int lastProxy =
    m_proxyBuffer,
    m_proxyCount,
    computeTag(m_inverseDiameter * MathUtils.max(point1.x, point2.x) + 1, m_inverseDiameter
      * MathUtils.max(point1.y, point2.y) + 1));
float fraction = 1;

        m_proxyBuffer,
        m_proxyCount,
        computeTag(m_inverseDiameter * JBoxUtils.min(point1.x, point2.x) - 1, m_inverseDiameter
            * JBoxUtils.min(point1.y, point2.y) - 1));
int lastProxy =
        m_proxyBuffer,
        m_proxyCount,
        computeTag(m_inverseDiameter * JBoxUtils.max(point1.x, point2.x) + 1, m_inverseDiameter
            * JBoxUtils.max(point1.y, point2.y) + 1));
float fraction = 1;

system.m_proxyBuffer,
system.m_proxyCount,
computeTag(system.m_inverseDiameter * aabblowerBoundx, system.m_inverseDiameter
system.m_proxyBuffer,
system.m_proxyCount,
computeTag(system.m_inverseDiameter * aabbupperBoundx, system.m_inverseDiameter

system.m_proxyBuffer,
system.m_proxyCount,
computeTag(system.m_inverseDiameter * aabblowerBoundx, system.m_inverseDiameter
system.m_proxyBuffer,
system.m_proxyCount,
computeTag(system.m_inverseDiameter * aabbupperBoundx, system.m_inverseDiameter

system.m_proxyBuffer,
system.m_proxyCount,
computeTag(system.m_inverseDiameter * aabblowerBoundx, system.m_inverseDiameter
system.m_proxyBuffer,
system.m_proxyCount,
computeTag(system.m_inverseDiameter * aabbupperBoundx, system.m_inverseDiameter