DarkflameServer/dGame/dUtilities/Preconditions.cpp

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#include "Preconditions.h"
#include "Game.h"
#include "Logger.h"
#include <sstream>
#include "InventoryComponent.h"
#include "MissionComponent.h"
#include "Character.h"
#include "CharacterComponent.h"
#include "LevelProgressionComponent.h"
#include "DestroyableComponent.h"
#include "GameMessages.h"
#include "eMissionState.h"
std::map<uint32_t, Precondition*> Preconditions::cache = {};
Precondition::Precondition(const uint32_t condition) {
auto query = CDClientDatabase::CreatePreppedStmt(
"SELECT type, targetLOT, targetCount FROM Preconditions WHERE id = ?;");
query.bind(1, (int)condition);
auto result = query.execQuery();
if (result.eof()) {
this->type = PreconditionType::ItemEquipped;
this->count = 1;
this->values = { 0 };
LOG("Failed to find precondition of id (%i)!", condition);
return;
}
this->type = static_cast<PreconditionType>(result.fieldIsNull(0) ? 0 : result.getIntField(0));
if (!result.fieldIsNull(1)) {
std::istringstream stream(result.getStringField(1));
std::string token;
while (std::getline(stream, token, ',')) {
uint32_t value;
if (GeneralUtils::TryParse(token, value)) {
this->values.push_back(value);
}
}
}
this->count = result.fieldIsNull(2) ? 1 : result.getIntField(2);
result.finalize();
}
bool Precondition::Check(Entity* player, bool evaluateCosts) const {
if (values.empty()) {
return true; // There are very few of these
}
bool any;
// Guesses
switch (type) {
case PreconditionType::HasItem:
case PreconditionType::ItemEquipped:
case PreconditionType::HasAchievement:
case PreconditionType::MissionAvailable:
case PreconditionType::OnMission:
case PreconditionType::MissionComplete:
case PreconditionType::PetDeployed:
case PreconditionType::HasFlag:
case PreconditionType::WithinShape:
case PreconditionType::InBuild:
case PreconditionType::TeamCheck:
case PreconditionType::IsPetTaming:
case PreconditionType::HasFaction:
case PreconditionType::DoesNotHaveFaction:
case PreconditionType::HasRacingLicence:
case PreconditionType::DoesNotHaveRacingLicence:
case PreconditionType::LegoClubMember:
case PreconditionType::NoInteraction:
any = true;
break;
case PreconditionType::DoesNotHaveItem:
case PreconditionType::ItemNotEquipped:
case PreconditionType::HasLevel:
any = false;
break;
default:
any = true;
break;
}
auto passedAny = false;
for (const auto value : values) {
const auto passed = CheckValue(player, value, evaluateCosts);
if (passed && any) {
return true;
}
if (!passed && !any) {
return false;
}
if (passed) {
passedAny = true;
}
}
return passedAny;
}
bool Precondition::CheckValue(Entity* player, const uint32_t value, bool evaluateCosts) const {
auto* missionComponent = player->GetComponent<MissionComponent>();
auto* inventoryComponent = player->GetComponent<InventoryComponent>();
auto* destroyableComponent = player->GetComponent<DestroyableComponent>();
auto* levelComponent = player->GetComponent<LevelProgressionComponent>();
auto* character = player->GetCharacter();
Mission* mission;
switch (type) {
case PreconditionType::ItemEquipped:
return inventoryComponent->IsEquipped(value);
case PreconditionType::ItemNotEquipped:
return !inventoryComponent->IsEquipped(value);
case PreconditionType::HasItem:
if (evaluateCosts) // As far as I know this is only used for quickbuilds, and removal shouldn't actually be handled here.
{
inventoryComponent->RemoveItem(value, count);
return true;
}
return inventoryComponent->GetLotCount(value) >= count;
case PreconditionType::DoesNotHaveItem:
return inventoryComponent->IsEquipped(value) < count;
case PreconditionType::HasAchievement:
mission = missionComponent->GetMission(value);
return mission == nullptr || mission->GetMissionState() >= eMissionState::COMPLETE;
case PreconditionType::MissionAvailable:
mission = missionComponent->GetMission(value);
return mission == nullptr || mission->GetMissionState() >= eMissionState::AVAILABLE;
case PreconditionType::OnMission:
mission = missionComponent->GetMission(value);
return mission == nullptr || mission->GetMissionState() >= eMissionState::ACTIVE;
case PreconditionType::MissionComplete:
mission = missionComponent->GetMission(value);
return mission == nullptr ? false : mission->GetMissionState() >= eMissionState::COMPLETE;
case PreconditionType::PetDeployed:
return false; // TODO
case PreconditionType::HasFlag:
return character->GetPlayerFlag(value);
case PreconditionType::WithinShape:
return true; // Client checks this one
case PreconditionType::InBuild:
return character->GetBuildMode();
case PreconditionType::TeamCheck:
return false; // TODO
case PreconditionType::IsPetTaming:
return false; // TODO
case PreconditionType::HasFaction:
for (const auto faction : destroyableComponent->GetFactionIDs()) {
if (faction == static_cast<int>(value)) {
return true;
}
}
return false;
case PreconditionType::DoesNotHaveFaction:
for (const auto faction : destroyableComponent->GetFactionIDs()) {
if (faction == static_cast<int>(value)) {
return false;
}
}
return true;
case PreconditionType::HasRacingLicence:
return false; // TODO
case PreconditionType::DoesNotHaveRacingLicence:
return false; // TODO
case PreconditionType::LegoClubMember:
return false; // TODO
case PreconditionType::NoInteraction:
return false; // TODO
case PreconditionType::HasLevel:
return levelComponent->GetLevel() >= value;
default:
return true; // There are a couple more unknown preconditions. Always return true in this case.
}
}
PreconditionExpression::PreconditionExpression(const std::string& conditions) {
if (conditions.empty()) {
empty = true;
return;
}
std::stringstream a;
std::stringstream b;
auto bor = false;
auto done = false;
for (auto i = 0u; i < conditions.size(); ++i) {
if (done) {
break;
}
const auto character = conditions[i];
switch (character) {
case '|':
bor = true;
b << conditions.substr(i + 1);
done = true;
break;
case ' ':
case ')':
break;
case ',':
case '&':
case ';':
case '(':
b << conditions.substr(i + 1);
done = true;
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
a << character;
break;
default:
break;
}
}
this->m_or = bor;
const auto aString = a.str();
if (!aString.empty()) {
this->condition = std::stoul(a.str());
} else {
this->condition = 0;
}
const auto bString = b.str();
if (!bString.empty()) {
this->next = new PreconditionExpression(bString);
} else {
this->next = nullptr;
}
}
bool PreconditionExpression::Check(Entity* player, bool evaluateCosts) const {
if (empty) {
return true;
}
const auto a = Preconditions::Check(player, condition, evaluateCosts);
if (!a) {
GameMessages::SendNotifyClientFailedPrecondition(player->GetObjectID(), player->GetSystemAddress(), u"", condition);
}
const auto b = next == nullptr ? true : next->Check(player, evaluateCosts);
return m_or ? a || b : a && b;
}
PreconditionExpression::~PreconditionExpression() {
delete next;
}
bool Preconditions::Check(Entity* player, const uint32_t condition, bool evaluateCosts) {
Precondition* precondition;
const auto& index = cache.find(condition);
if (index != cache.end()) {
precondition = index->second;
} else {
precondition = new Precondition(condition);
cache.insert_or_assign(condition, precondition);
}
return precondition->Check(player, evaluateCosts);
}
PreconditionExpression Preconditions::CreateExpression(const std::string& conditions) {
return PreconditionExpression(conditions);
}
Preconditions::~Preconditions() {
for (const auto& condition : cache) {
delete condition.second;
}
cache.clear();
}