CStudioHdr::CActivityToSequenceMapping::NumSequencesForActivity

/* CStudioHdr::CActivityToSequenceMapping::NumSequencesForActivity(int) */

undefined4 __thiscall
CStudioHdr::CActivityToSequenceMapping::NumSequencesForActivity
          (CActivityToSequenceMapping *this,int param_1)

{
  undefined4 *puVar1;
  uint uVar2;
  uint uVar3;
  uint uVar4;
  int *piVar5;
  uint local_20;
  
  if (*(int *)this == 0) {
    return 0;
  }
  uVar2 = HashInt(param_1);
  if (this[0x1e] == (CActivityToSequenceMapping)0x0) {
    local_20 = *(uint *)(this + 0x14);
    uVar2 = uVar2 % local_20;
  }
  else {
    uVar2 = uVar2 & *(uint *)(this + 0x20);
    local_20 = *(uint *)(this + 0x14);
  }
  puVar1 = (undefined4 *)(*(int *)(this + 8) + uVar2 * 0x14);
  uVar4 = puVar1[3];
  if ((int)uVar4 < 1) {
    if (uVar4 == 0) {
LAB_0059f12f:
      uVar4 = 0xffff;
      uVar2 = 0xffff;
      goto LAB_0059f13e;
    }
LAB_0059f16f:
    uVar3 = 0;
  }
  else {
    piVar5 = (int *)*puVar1;
    if (param_1 == *piVar5) goto LAB_0059f16f;
    uVar3 = 0;
    do {
      piVar5 = piVar5 + 4;
      uVar3 = uVar3 + 1;
      if (uVar3 == uVar4) goto LAB_0059f12f;
    } while (param_1 != *piVar5);
  }
  uVar4 = uVar3 & 0xffff;
  uVar2 = (uVar2 << 0x10 | uVar3) >> 0x10;
LAB_0059f13e:
  if (((int)uVar2 < (int)local_20) &&
     (piVar5 = (int *)(*(int *)(this + 8) + uVar2 * 0x14), (int)uVar4 < piVar5[3])) {
    return *(undefined4 *)(uVar4 * 0x10 + *piVar5 + 8);
  }
  return 0;
}