@SideOnly(Side.CLIENT)
    private void activeParticles() {
      CrystalElement e = CrystalElement.elements[ticks / 8 % 16];
      double vx = ReikaRandomHelper.getRandomPlusMinus(0, 0.03125);
      double vz = ReikaRandomHelper.getRandomPlusMinus(0, 0.03125);
      float g = -(float) ReikaRandomHelper.getRandomPlusMinus(0.125, 0.0625);
      EntityBlurFX fx =
          new EntityBlurFX(worldObj, xCoord + 0.5, yCoord + 8.25, zCoord + 0.5, vx, 0, vz)
              .setGravity(g);
      Minecraft.getMinecraft().effectRenderer.addEffect(fx);

      // ---------------------------
      int dx = worldObj.rand.nextBoolean() ? 3 : -3;
      int dz = worldObj.rand.nextBoolean() ? 3 : -3;
      double x = xCoord + dx + worldObj.rand.nextDouble();
      double y = yCoord + 5 + worldObj.rand.nextDouble();
      double z = zCoord + dz + worldObj.rand.nextDouble();
      double v = 0.0625;
      vx = x < xCoord ? v : -v;
      vz = z < zCoord ? v : -v;
      if (worldObj.rand.nextBoolean()) vx = 0;
      else vz = 0;

      EntityFX fx2 =
          new EntityCenterBlurFX(e, worldObj, x, y, z, vx, 0, vz).setScale(2).setNoSlowdown();
      fx2.noClip = true;
      Minecraft.getMinecraft().effectRenderer.addEffect(fx2);

      // ----------------------------------
      dx = worldObj.rand.nextBoolean() ? 7 : -7;
      dz = worldObj.rand.nextBoolean() ? 7 : -7;
      if (worldObj.rand.nextBoolean()) dx += Math.signum(dx) * -4;
      else dz += Math.signum(dz) * -4;
      x = xCoord + dx + worldObj.rand.nextDouble();
      y = yCoord + 5 + worldObj.rand.nextDouble();
      z = zCoord + dz + worldObj.rand.nextDouble();
      v = 0.0625;
      vx = x < xCoord ? v : -v;
      vz = z < zCoord ? v : -v;
      if (worldObj.rand.nextBoolean()) vx = 0;
      else vz = 0;

      boolean longAxis = (Math.abs(dx) == 7 && vx != 0) || (Math.abs(dz) == 7 && vz != 0);
      int l = !longAxis ? 100 : 60;

      EntityRuneFX fx3 = new EntityRuneFX(worldObj, x, y, z, vx, 0, vz, e).setScale(2).setLife(l);
      fx3.noClip = true;
      Minecraft.getMinecraft().effectRenderer.addEffect(fx3);
    }