determineWeaponBonus.cpp

bool __fastcall determineWeaponBonus(_DWORD *a1, WeaponModifierRanges *ranges) // 0x71002DFB9C
{
  // [COLLAPSED LOCAL DECLARATIONS. PRESS KEYPAD CTRL-"+" TO EXPAND]

  bonus = WeaponModifierRanges::getRandomBonus(ranges);
  if ( bonus == WeaponBonus_None )
    return 0;
  if ( ranges->field_31 )
    *a1 |= 0x80000000;
  if ( (signed int)bonus <= 0x3F )
  {
    switch ( bonus )
    {
      case WeaponBonus_AddAtk:
        v6 = ranges->addAtkMin;
        v5 = ranges->addAtkMax;
        v7 = 1;
        v8 = (sead::Random::getU32(sead::GlobalRandom::sInstance) * (unsigned __int64)(unsigned int)(1 - v6 + v5) >> 0x20)
           + v6;
        if ( v8 < 1 )
          return v7;
        v9 = *a1 & 0x80000000 | 1;
        goto LABEL_16;
      case WeaponBonus_AddLife:
        v13 = ranges->addLifeMin;
        v12 = ranges->addLifeMax;
        v7 = 1;
        v8 = (sead::Random::getU32(sead::GlobalRandom::sInstance) * (unsigned __int64)(unsigned int)(1 - v13 + v12) >> 0x20)
           + v13;
        if ( v8 < 1 )
          return v7;
        v9 = *a1 & 0x80000000 | 2;
        goto LABEL_16;
      case WeaponBonus_AddThrow:
        v14 = ranges->addThrowMin;
        v15 = ranges->addThrowMax - v14;
        v16 = v14
            + (float)(v15
                    * (float)(COERCE_FLOAT((sead::Random::getU32(sead::GlobalRandom::sInstance) >> 9) | 0x3F800000)
                            + -1.0));
        if ( v16 <= 0.0 )
          return 1;
        v17 = *a1 & 0x80000000 | 8;
        goto LABEL_27;
      case WeaponBonus_AddSpreadFire:
        *a1 = *a1 & 0x80000000 | 0x10;
        v8 = 5;
        goto LABEL_20;
      default:
        goto def_71002DFBFC;
    }
    goto def_71002DFBFC;
  }
  if ( bonus == WeaponBonus_AddRapidFire )
  {
    v18 = ranges->addRapidFireMin;
    v19 = ranges->addRapidFireMax - v18;
    v16 = v18
        + (float)(v19
                * (float)(COERCE_FLOAT((sead::Random::getU32(sead::GlobalRandom::sInstance) >> 9) | 0x3F800000) + -1.0));
    if ( v16 <= 0.0 )
      return 1;
    v17 = *a1 & 0x80000000 | 0x40;
LABEL_27:
    *a1 = v17;
    a1[1] = (signed int)(float)(v16 * 1000.0);
    return 1;
  }
  if ( bonus == WeaponBonus_AddSurfMaster )
  {
    if ( !GlobalParameter::sInstance )
      return 1;
    v20 = GlobalParameter::sInstance->globalParam;
    if ( !v20 )
      return 1;
    v16 = v20->shieldSurfMasterFrictionRatio.value;
    if ( v16 <= 0.0 )
      return 1;
    v17 = *a1 & 0x80000000 | 0x80;
    goto LABEL_27;
  }
  if ( bonus != 0x100 )
  {
def_71002DFBFC:
    v7 = 1;
    *a1 = bonus;
    a1[1] = 0;
    return v7;
  }
  v11 = ranges->addGuardMin;
  v10 = ranges->addGuardMax;
  v7 = 1;
  v8 = (sead::Random::getU32(sead::GlobalRandom::sInstance) * (unsigned __int64)(unsigned int)(1 - v11 + v10) >> 0x20)
     + v11;
  if ( v8 < 1 )
    return v7;
  v9 = *a1 & 0x80000000 | 0x100;
LABEL_16:
  *a1 = v9;
LABEL_20:
  a1[1] = v8;
  return 1;
}

weaponBonus.cpp

WeaponBonus __fastcall WeaponModifierRanges::getRandomBonus(WeaponModifierRanges *this)  // 0x71002F1D68
{
  // [COLLAPSED LOCAL DECLARATIONS. PRESS KEYPAD CTRL-"+" TO EXPAND]

  if ( this->addAtkMin <= 0 )
    counter = 1;
  else
    counter = 2;
  bonus = this->addAtkMin > 0;
  if ( this->addLifeMin >= 1 )
  {
    v4 = sead::Random::getU32(sead::GlobalRandom::sInstance);
    if ( !(v4 * (unsigned __int64)counter & 0x300000000LL) )
      bonus = 2;
    if ( !(v4 * (unsigned __int64)counter & 0x300000000LL) )
      ++counter;
  }
  if ( this->addCrit )
  {
    v5 = sead::Random::getU32(sead::GlobalRandom::sInstance) * (unsigned __int64)counter;
    v6 = v5 >> 0x20 == 0;
    v7 = v5 >> 0x20 == 0;
    if ( v6 )
      bonus = 4;
    counter += v7;
  }
  if ( this->addGuardMin >= 1 )
  {
    v8 = sead::Random::getU32(sead::GlobalRandom::sInstance) * (unsigned __int64)counter;
    v6 = v8 >> 0x20 == 0;
    v9 = v8 >> 0x20 == 0;
    if ( v6 )
      bonus = 0x100;
    counter += v9;
  }
  if ( this->addThrowMin != 1.0 || this->addThrowMax != 1.0 )
  {
    v10 = sead::Random::getU32(sead::GlobalRandom::sInstance) * (unsigned __int64)counter;
    v6 = v10 >> 0x20 == 0;
    v11 = v10 >> 0x20 == 0;
    if ( v6 )
      bonus = 8;
    counter += v11;
  }
  if ( this->addSpreadFire )
  {
    v12 = sead::Random::getU32(sead::GlobalRandom::sInstance) * (unsigned __int64)counter;
    v6 = v12 >> 0x20 == 0;
    v13 = v12 >> 0x20 == 0;
    if ( v6 )
      bonus = 0x10;
    counter += v13;
  }
  if ( this->addZoomRapid )
  {
    v14 = sead::Random::getU32(sead::GlobalRandom::sInstance) * (unsigned __int64)counter;
    v6 = v14 >> 0x20 == 0;
    v15 = v14 >> 0x20 == 0;
    if ( v6 )
      bonus = 0x20;
    counter += v15;
  }
  if ( this->addRapidFireMin != 1.0 || this->addRapidFireMax != 1.0 )
  {
    v16 = sead::Random::getU32(sead::GlobalRandom::sInstance) * (unsigned __int64)counter;
    v6 = v16 >> 0x20 == 0;
    v17 = v16 >> 0x20 == 0;
    if ( v6 )
      bonus = 0x40;
    counter += v17;
  }
  if ( !this->addSurfMaster )
    return bonus;
  if ( sead::Random::getU32(sead::GlobalRandom::sInstance) * (unsigned __int64)counter >> 0x20 )
    return bonus;
  return 0x80;
}