#include "Define.h"
#include "Duration.h"
#include <limits>

Classes
class	RandomEngine

Functions
AC_COMMON_API int32	irand (int32 min, int32 max)

AC_COMMON_API uint32	urand (uint32 min, uint32 max)

AC_COMMON_API uint32	urandms (uint32 min, uint32 max)

AC_COMMON_API uint32	rand32 ()

AC_COMMON_API Milliseconds	randtime (Milliseconds min, Milliseconds max)

AC_COMMON_API float	frand (float min, float max)

AC_COMMON_API double	rand_norm ()

AC_COMMON_API double	rand_chance ()

AC_COMMON_API uint32	urandweighted (std::size_t count, double const *chances)

bool	roll_chance_f (float chance)

bool	roll_chance_i (int chance)

Function Documentation

◆ frand()

AC_COMMON_API float frand	(	float	min,
		float	max
	)

{
    ASSERT(max >= min);
    std::uniform_real_distribution<float> urd(min, max);
    return urd(engine);
}

References ASSERT, and engine.

Referenced by npc_pos_martin_or_gorkun_second::npc_pos_martin_or_gorkun_secondAI::DoAction(), npc_time_rift::DoSummonAtRift(), Unit::GetMeleeAttackPoint(), FleeingMovementGenerator< T >::GetPoint(), npc_valkyr_shadowguard::npc_valkyr_shadowguardAI::GoSiphon(), go_tadpole_cage::go_tadpole_cageAI::GossipHello(), spell_item_unusual_compass::HandleDummy(), spell_entropius_black_hole_effect::HandlePull(), spell_boss_magus_telestra_gravity_well::HandlePull(), npc_eris_hevenfire::npc_eris_hevenfireAI::JustSummoned(), spell_gen_random_target32::ModDest(), spell_q12308_escape_from_silverbrook_summon_worgen::ModDest(), spell_random_lightning_visual_effect::ModDestHeight(), npc_gunship_boarding_addAI::MovementInform(), SmartScript::ProcessAction(), npc_lake_frog::npc_lake_frogAI::ReceiveEmote(), npc_firework::npc_fireworkAI::Reset(), PassengerController::SelectSpawnPoint(), spell_mother_shahraz_fatal_attraction::SetDest(), spell_q10898_skywing::SetDest(), npc_icc_gauntlet_controller::npc_icc_gauntlet_controllerAI::SummonBroodling(), npc_eris_hevenfire::npc_eris_hevenfireAI::SummonPeasants(), spell_midsummer_fling_torch::ThrowNextTorch(), instance_old_hillsbrad::instance_old_hillsbrad_InstanceMapScript::Update(), npc_scarlet_ghoul::npc_scarlet_ghoulAI::UpdateAI(), boss_arlokk::boss_arlokkAI::UpdateAI(), npc_pos_leader::npc_pos_leaderAI::UpdateAI(), npc_pos_martin_or_gorkun_second::npc_pos_martin_or_gorkun_secondAI::UpdateAI(), and npc_tirions_gambit_tirion::npc_tirions_gambit_tirionAI::UpdateEscortAI().

◆ irand()

AC_COMMON_API int32 irand	(	int32	min,
		int32	max
	)

{
    ASSERT(max >= min);
    std::uniform_int_distribution<int32> uid(min, max);
    return uid(engine);
}

References ASSERT, and engine.

Referenced by spell_shadowfang_keep_haunting_spirits_aura::CalcPeriodic(), SpellEffectInfo::CalcValue(), Spell::CheckCast(), Spell::EffectSchoolDMG(), Spell::EffectTeleportUnits(), GetItemEnchantMod(), spell_gen_gadgetzan_transporter_backfire::HandleDummy(), spell_item_flask_of_the_north::HandleDummy(), Unit::HandleDummyAuraProc(), npc_echo_of_medivh::HandlePieceMoveByAI(), spell_winter_veil_racer_slam_hit::HandleScriptEffect(), spell_dk_bloodworms::HandleSummon(), boss_kologarn_arms::boss_kologarn_armsAI::JustDied(), Unit::MagicSpellHitResult(), spell_gen_flurry_of_claws::OnPeriodic(), npc_doomfire_spirit::Reset(), roll_chance_i(), npc_minigob_manabonk::SendMailToPlayer(), boss_janalai::SpawnBombs(), npc_xt002_heart::npc_xt002_heartAI::SpellHitTarget(), boss_general_angerforge::boss_general_angerforgeAI::SummonAdds(), boss_akilzon::SummonEagles(), boss_general_angerforge::boss_general_angerforgeAI::SummonMedics(), Spell::TakePower(), npc_scarlet_cannon::npc_scarlet_cannonAI::UpdateAI(), npc_akilzon_eagle::UpdateAI(), npc_murkdeep::npc_murkdeepAI::UpdateAI(), npc_pos_after_first_boss::npc_pos_after_first_bossAI::UpdateAI(), boss_grobbulus::boss_grobbulusAI::UpdateAI(), boss_thorim_sif::boss_thorim_sifAI::UpdateAI(), violet_hold_trashAI::UpdateAI(), npc_llod_generic::npc_llod_genericAI::UpdateAI(), Player::UpdateSkillPro(), and GameObject::Use().

◆ rand32()

AC_COMMON_API uint32 rand32 ( )

{
    return GetRng()->RandomUInt32();
}

References GetRng(), and SFMTRand::RandomUInt32().

Referenced by npc_thrall_bfu::npc_thrall_bfuAI::ActivateValimathrasPortal(), boss_nefarian::KilledUnit(), boss_vaelastrasz::boss_vaelAI::KilledUnit(), RandomEngine::operator()(), npc_varian_wrynn::npc_varian_wrynnAI::SpawnWave(), and npc_thrall_bfu::npc_thrall_bfuAI::SpawnWave().

◆ rand_chance()

AC_COMMON_API double rand_chance ( )

{
    std::uniform_real_distribution<double> urd(0.0, 100.0);
    return urd(engine);
}

References engine.

Referenced by GetExplicitDiscoverySpell(), GetItemEnchantMod(), WorldSession::HandleGMResponseResolve(), LootTemplate::LootGroup::Roll(), roll_chance_f(), PoolGroup< T >::SpawnObject(), and boss_majordomo::boss_majordomoAI::UpdateAI().

◆ rand_norm()

AC_COMMON_API double rand_norm ( )

{
    std::uniform_real_distribution<double> urd;
    return urd(engine);
}

References engine.

Referenced by RandomMovementGenerator< T >::_setRandomLocation(), Unit::CalcAbsorbResist(), SpellImplicitTargetInfo::CalcDirectionAngle(), boss_headless_horseman::DamageTaken(), npc_midsummer_ribbon_pole_target::DoDancingFLameChecks(), RandomMovementGenerator< T >::DoInitialize(), ConfusedMovementGenerator< T >::DoInitialize(), npc_time_rift::DoSummonAtRift(), Spell::EffectStuck(), Spell::EffectTransmitted(), violet_hold_trashAI::EnterEvadeMode(), Unit::GetRandomContactPoint(), WorldObject::GetRandomNearPosition(), WorldObject::GetRandomPoint(), Position::GetSinCos(), npc_valkyr_shadowguard::npc_valkyr_shadowguardAI::GoSiphon(), spell_icc_geist_alarm::HandleEvent(), WorldSession::HandlePetActionHelper(), spell_dreamwalker_summon_portal::HandleScript(), boss_onyxia::HandleWhelpSpam(), spell_q11065_wrangle_some_aether_rays_aura::if(), npc_troll_volunteer::npc_troll_volunteerAI::InitializeAI(), npc_hourglass_of_eternity::npc_hourglass_of_eternityAI::InitializeAI(), npc_pet_dk_army_of_the_dead::npc_pet_dk_army_of_the_deadAI::InitializeAI(), boss_keleseth::JustEngagedWith(), boss_high_astromancer_solarian::JustEngagedWith(), boss_auriaya::boss_auriayaAI::JustSummoned(), spell_the_lich_king_teleport_to_frostmourne_hc::ModDest(), npc_ulduar_snow_mound::MoveInLineOfSight(), npc_concentrated_ball::npc_concentrated_ballAI::MoveToNextPoint(), npc_mechanolift::npc_mechanoliftAI::npc_mechanoliftAI(), Unit::PetSpellFail(), npc_oculus_unstable_sphere::npc_oculus_unstable_sphereAI::PickNewLocation(), Weather::ReGenerate(), boss_anubarak_trial::boss_anubarak_trialAI::Reset(), boss_bjarngrim::boss_bjarngrimAI::Reset(), spell_sindragosa_s_fury::SelectDest(), Spell::SelectImplicitCasterDestTargets(), Spell::SelectImplicitDestDestTargets(), Spell::SelectImplicitTargetDestTargets(), spell_mother_shahraz_fatal_attraction::SetDest(), boss_yoggsaron_sara::boss_yoggsaron_saraAI::SpawnTentacle(), npc_pos_leader_second::npc_pos_leader_secondAI::SpellHitTarget(), npc_icc_gauntlet_controller::npc_icc_gauntlet_controllerAI::SummonBroodling(), boss_yoggsaron_sara::boss_yoggsaron_saraAI::SummonDeathOrbs(), boss_yoggsaron::boss_yoggsaronAI::SummonImmortalGuardian(), instance_old_hillsbrad::instance_old_hillsbrad_InstanceMapScript::Update(), instance_trial_of_the_champion::instance_trial_of_the_champion_InstanceMapScript::Update(), npc_dark_iron_attack_generator::UpdateAI(), npc_time_rift::UpdateAI(), boss_onyxia::UpdateAI(), boss_icehowl::boss_icehowlAI::UpdateAI(), boss_twin_valkyrAI::UpdateAI(), npc_pos_leader::npc_pos_leaderAI::UpdateAI(), boss_sindragosa::boss_sindragosaAI::UpdateAI(), npc_strangulate_vehicle::npc_strangulate_vehicleAI::UpdateAI(), boss_malygos::boss_malygosAI::UpdateAI(), boss_ormorok::UpdateAI(), boss_drakos::boss_drakosAI::UpdateAI(), boss_eregos::boss_eregosAI::UpdateAI(), boss_mimiron::boss_mimironAI::UpdateAI(), npc_ulduar_flames_initial::npc_ulduar_flames_initialAI::UpdateAI(), npc_ulduar_expedition_engineer::npc_ulduar_expedition_engineerAI::UpdateAI(), boss_ymiron::boss_ymironAI::UpdateAI(), npc_hourglass_of_eternity::npc_hourglass_of_eternityAI::UpdateAI(), and boss_ichoron::boss_ichoronAI::UpdateAI().

◆ randtime()

AC_COMMON_API Milliseconds randtime	(	Milliseconds	min,
		Milliseconds	max
	)

{
    long long diff = max.count() - min.count();
    ASSERT(diff >= 0);
    ASSERT(diff <= (uint32) - 1);
    return min + Milliseconds(urand(0, diff));
}

References ASSERT, and urand().

Referenced by EventProcessor::AddEventAtOffset(), boss_hungarfen::JustEngagedWith(), EventMap::Repeat(), EventMap::RescheduleEvent(), and EventMap::ScheduleEvent().

◆ roll_chance_f()

bool roll_chance_f ( float chance )

inline

{
    return chance > rand_chance();
}

References rand_chance().

Referenced by spell_dk_spell_deflection::Absorb(), Player::CastItemCombatSpell(), spell_dk_wandering_plague_aura::CheckProc(), spell_gen_proc_reduced_above_60::CheckProc(), Unit::DealDamage(), Unit::DealMeleeDamage(), Spell::DoAllEffectOnLaunchTarget(), Spell::DoCreateItem(), GetSkillDiscoverySpell(), Unit::HandleDummyAuraProc(), AuraEffect::HandlePeriodicDamageAurasTick(), AuraEffect::HandlePeriodicHealAurasTick(), AuraEffect::HandlePeriodicHealthLeechAuraTick(), AuraEffect::HandlePeriodicTriggerSpellAuraTick(), spell_gen_mounted_charge::HandleScriptEffect(), Aura::IsProcTriggeredOnEvent(), Unit::isSpellBlocked(), Unit::IsTriggeredAtSpellProcEvent(), item_generic_limit_chance_above_60::OnCastItemCombatSpell(), spell_dk_rune_of_the_fallen_crusader::RecalculateDamage(), boss_elder_nadox::SummonHelpers(), and Player::UpdateCombatSkills().

◆ roll_chance_i()

bool roll_chance_i ( int chance )

inline

{
    return chance > irand(0, 99);
}

References irand().

◆ urand()

AC_COMMON_API uint32 urand	(	uint32	min,
		uint32	max
	)

{
    ASSERT(max >= min);
    std::uniform_int_distribution<uint32> uid(min, max);
    return uid(engine);
}

References ASSERT, and engine.

◆ urandms()

AC_COMMON_API uint32 urandms	(	uint32	min,
		uint32	max
	)

{
    ASSERT(std::numeric_limits<uint32>::max() / Milliseconds::period::den >= max);
    return urand(min * Milliseconds::period::den, max * Milliseconds::period::den);
}

References ASSERT, and urand().

◆ urandweighted()

AC_COMMON_API uint32 urandweighted	(	std::size_t	count,
		double const *	chances
	)

{
    std::discrete_distribution<uint32> dd(chances, chances + count);
    return dd(engine);
}

References engine.

Referenced by Acore::Containers::SelectRandomWeightedContainerElement().

Classes

Functions

Function Documentation

◆ frand()

◆ irand()

◆ rand32()

◆ rand_chance()

◆ rand_norm()

◆ randtime()

◆ roll_chance_f()

◆ roll_chance_i()

◆ urand()

◆ urandms()

◆ urandweighted()