PkmnLib/src/Battling/Library/DamageLibrary.cpp

107 lines
5.0 KiB
C++

#include "DamageLibrary.hpp"
#include "../PkmnScriptHook.hpp"
using HitData = const CreatureLib::Battling::ExecutingAttack::HitData;
inline constexpr float fl(float a) { return std::floor(a); }
uint32_t PkmnLib::Battling::DamageLibrary::GetDamage(CreatureLib::Battling::ExecutingAttack* attack,
CreatureLib::Battling::Creature* target, uint8_t hitIndex,
const HitData& hitData) const {
auto levelMod = fl((2 * attack->GetUser()->GetLevel()) / 5.0f) + 2;
auto bp = hitData.GetBasePower();
auto statMod = GetStatModifier(attack, target, hitIndex, hitData);
PKMN_HOOK(ModifyStatModifier, attack, attack, target, hitIndex, &statMod);
auto damageMod = GetDamageModifier(attack, target, hitIndex, hitData);
auto floatDamage = fl(levelMod * bp);
floatDamage = fl(floatDamage * statMod);
floatDamage = fl(floatDamage / 50) + 2;
floatDamage = fl(floatDamage * damageMod);
if (attack->GetTargetCount() > 1) {
floatDamage = fl(floatDamage * 0.75f);
}
if (hitData.IsCritical()) {
float critModifier = 1.5;
PKMN_HOOK(OverrideCriticalModifier, attack, attack, target, hitIndex, &critModifier);
floatDamage = fl(floatDamage * critModifier);
}
if (_hasRandomness) {
Ensure(attack->GetUser()->GetBattle().GetValue());
float randPercentage = 85 + attack->GetUser()->GetBattle().GetValue()->GetRandom()->Get(0, 16);
floatDamage = fl(floatDamage * (randPercentage / 100.0f));
}
if (attack->GetUser()->HasType(hitData.GetType())) {
float stabModifier = 1.5;
PKMN_HOOK(OverrideSTABModifier, attack, attack, target, hitIndex, &stabModifier);
floatDamage = fl(floatDamage * stabModifier);
}
floatDamage = fl(floatDamage * hitData.GetEffectiveness());
uint32_t damage = 0;
if (floatDamage <= 0) {
if (hitData.GetEffectiveness() == 0) {
damage = 0;
} else {
damage = 1;
}
} else if (floatDamage >= (float)UINT32_MAX) {
damage = UINT32_MAX;
} else {
damage = static_cast<uint32_t>(floatDamage);
}
PKMN_HOOK(OverrideDamage, attack, attack, target, hitIndex, &damage);
PKMN_HOOK(OverrideIncomingDamage, target, attack, target, hitIndex, &damage);
return damage;
}
uint8_t PkmnLib::Battling::DamageLibrary::GetBasePower(CreatureLib::Battling::ExecutingAttack* attack,
[[maybe_unused]] CreatureLib::Battling::Creature* target,
[[maybe_unused]] uint8_t hitIndex,
[[maybe_unused]] const HitData& hitData) const {
auto bp = attack->GetUseAttack()->GetBasePower();
PKMN_HOOK(OverrideBasePower, attack, attack, target, hitIndex, &bp);
return bp;
}
float PkmnLib::Battling::DamageLibrary::GetStatModifier(CreatureLib::Battling::ExecutingAttack* attack,
CreatureLib::Battling::Creature* target, uint8_t hit,
const HitData& hitData) const {
auto* user = attack->GetUser().GetRaw();
PKMN_HOOK(ChangeDamageStatsUser, attack, attack, target, hit, &user);
CreatureLib::Library::Statistic offensiveStat;
CreatureLib::Library::Statistic defensiveStat;
auto moveData = attack->GetUseAttack().ForceAs<const Library::MoveData>();
if (moveData->GetCategory() == Library::MoveCategory::Physical) {
offensiveStat = Library::Statistic::PhysicalAttack;
defensiveStat = Library::Statistic::PhysicalDefense;
} else {
offensiveStat = Library::Statistic::SpecialAttack;
defensiveStat = Library::Statistic::SpecialDefense;
}
auto bypassDefensive = hitData.IsCritical() && target->GetStatBoost(defensiveStat) > 0;
PKMN_HOOK(BypassDefensiveStat, attack, attack, target, hit, &bypassDefensive);
auto bypassOffensive = hitData.IsCritical() && user->GetStatBoost(offensiveStat) < 0;
PKMN_HOOK(BypassOffensiveStat, attack, attack, target, hit, &bypassOffensive);
float offensiveValue =
bypassOffensive ? (float)user->GetFlatStat(offensiveStat) : (float)user->GetBoostedStat(offensiveStat);
float defensiveValue =
bypassDefensive ? (float)target->GetFlatStat(defensiveStat) : (float)target->GetBoostedStat(defensiveStat);
PKMN_HOOK(ModifyOffensiveStatValue, attack, attack, target, hit, &offensiveValue);
PKMN_HOOK(ModifyDefensiveStatValue, attack, attack, target, hit, &defensiveValue);
return offensiveValue / defensiveValue;
}
float PkmnLib::Battling::DamageLibrary::GetDamageModifier(CreatureLib::Battling::ExecutingAttack*,
CreatureLib::Battling::Creature*, uint8_t,
const HitData&) const {
float mod = 1;
// HOOK: Modify damage modifier.
return mod;
}