[Zoning] Improve zone routing (#4428)

* [Zoning] Improvements to zone routing

* Update world_content_service.h

* Update world_content_service.h
This commit is contained in:
Chris Miles 2024-07-30 08:12:31 -05:00 committed by GitHub
parent d5cbec714e
commit 70a96ea098
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
2 changed files with 63 additions and 84 deletions

View File

@ -6,6 +6,7 @@
#include "../rulesys.h"
#include "../eqemu_logsys.h"
#include "../repositories/instance_list_repository.h"
#include "../zone_store.h"
WorldContentService::WorldContentService()
@ -183,8 +184,8 @@ void WorldContentService::ReloadContentFlags()
}
SetContentFlags(set_content_flags);
LoadZones();
LoadStaticGlobalZoneInstances();
zone_store.LoadZones(*m_content_database);
}
Database *WorldContentService::GetDatabase() const
@ -236,18 +237,6 @@ void WorldContentService::SetContentFlag(const std::string &content_flag_name, b
ReloadContentFlags();
}
// HandleZoneRoutingMiddleware is meant to handle content and context aware zone routing
//
// example # 1
// lavastorm (pre-don) version 0 (classic)
// lavastorm (don) version 1
// we want to route players to the correct version of lavastorm based on the current server side expansion
// in order to do that the simplest and cleanest way we intercept the zoning process and route players to an "instance" of the zone
// the reason why we're doing this is because all of the zoning logic already is handled by two keys "zone_id" and "instance_id"
// we can leverage static, never expires instances to handle this but to the client they don't see it any other way than a public normal zone
// scripts handle all the same way, you don't have to think about instances, the middleware will handle the magic
// the versions of zones are represented by two zone entries that have potentially different min/max expansion and/or different content flags
// we decide to route the client to the correct version of the zone based on the current server side expansion
void WorldContentService::HandleZoneRoutingMiddleware(ZoneChange_Struct *zc)
{
auto r = FindZone(zc->zoneID, zc->instanceID);
@ -261,93 +250,72 @@ void WorldContentService::HandleZoneRoutingMiddleware(ZoneChange_Struct *zc)
// LoadStaticGlobalZoneInstances loads all static global zone instances
// these are zones that are never set to expire and are global
// these are used commonly in v1/v2/v3 versions of the same zone for expansion routing
WorldContentService * WorldContentService::LoadStaticGlobalZoneInstances()
WorldContentService *WorldContentService::LoadStaticGlobalZoneInstances()
{
m_zone_instances = InstanceListRepository::GetWhere(*GetDatabase(), fmt::format("never_expires = 1 AND is_global = 1"));
m_zone_static_instances = InstanceListRepository::GetWhere(
*GetDatabase(),
fmt::format("never_expires = 1 AND is_global = 1")
);
LogInfo("Loaded [{}] zone_instances", m_zone_instances.size());
LogInfo("Loaded [{}] zone_instances", m_zone_static_instances.size());
return this;
}
// LoadZones sets the zones for the world content service
// this is used for zone routing middleware
// we pull the zone list from the zone repository and feed from the zone store for now
// we're holding a copy in the content service - but we're talking 250kb of data in memory to handle routing of zoning
WorldContentService * WorldContentService::LoadZones()
{
m_zones = ZoneRepository::All(*GetContentDatabase());
LogInfo("Loaded [{}] zones", m_zones.size());
return this;
}
// FindZone is critical to the zone routing middleware and any logic that needs to route players to the correct zone
// era contextual routing, multiple version of zones, etc
// FindZone handles content and context aware zone routing (middleware)
//
// this is a middleware function that is meant to be used in the zone change process
// this hooks all core zone changes within the server and routes the player to the correct zone
// returning a zone_id of non-zero means the middleware will route the player
// returning a zone_id of 0 means the middleware will not route the player
// this is useful for handling multiple versions of the same zone
//
// implementation >
// the zoning and process spawning logic already is handled by two keys "zone_id" and "instance_id"
// we leverage static, never expires instances to handle this and client still sees it as a normal zone
//
// content awareness >
// simply use the zone_id, server content settings and the middleware will handle the rest
// you don't have to think about instances in any data tables (use instance_id 0)
// you don't have to keep track of instance ids in scripts (use instance_id 0)
// the versions of zones are represented by two zone entries that have potentially different min/max expansion and/or different content flags
// we decide to route the client to the correct version of the zone based on the current server side expansion
//
// example >
// we want to route players to the correct version of lavastorm based on the current server side expansion (DoesZonePassContentFiltering)
// lavastorm (pre-don) version 0 (classic)
// zone table entry for version = 0, min_expansion = 0, max_expansion = 8
// instance_list table entry for lavastorm has version = 0, is_global = 1, never_expires = 1
// lavastorm (don) version 1
// zone table entry for version = 1, min_expansion = 9, max_expansion = 99
// instance_list table entry for lavastorm has version = 1, is_global = 1, never_expires = 1
WorldContentService::FindZoneResult WorldContentService::FindZone(uint32 zone_id, uint32 instance_id)
{
// if there's an active dynamic instance, we don't need to route
if (instance_id > 0) {
auto inst = InstanceListRepository::FindOne(*GetDatabase(), instance_id);
if (inst.id != 0 && !inst.is_global && !inst.never_expires) {
return WorldContentService::FindZoneResult{
.zone_id = 0,
};
}
}
for (const auto &z: zone_store.GetZones()) {
for (auto &i: m_zone_static_instances) {
if (
z.zoneidnumber == zone_id &&
DoesZonePassContentFiltering(z) &&
i.zone == zone_id &&
i.version == z.version) {
for (auto &z: m_zones) {
if (z.zoneidnumber == zone_id) {
auto f = ContentFlags{
.min_expansion = z.min_expansion,
.max_expansion = z.max_expansion,
.content_flags = z.content_flags,
.content_flags_disabled = z.content_flags_disabled
};
if (DoesPassContentFiltering(f)) {
LogInfo(
"Attempting to route player to zone [{}] ({}) version [{}] long_name [{}]",
z.short_name,
z.zoneidnumber,
z.version,
z.long_name
);
// first pass, explicit match on public static global zone instances
for (auto &i: m_zone_instances) {
if (i.zone == zone_id && i.version == z.version) {
LogInfo(
"Routed player to instance [{}] of zone [{}] ({}) version [{}] long_name [{}] notes [{}]",
i.id,
z.short_name,
z.zoneidnumber,
z.version,
z.long_name,
i.notes
);
return WorldContentService::FindZoneResult{
.zone_id = static_cast<uint32>(z.zoneidnumber),
.instance = i,
.zone = z
};
}
if (instance_id > 0 && i.id != instance_id) {
continue;
}
LogInfo(
"Routed player to non-instance zone [{}] ({}) version [{}] long_name [{}] notes [{}]",
"Routed player to public static instance [{}] of zone [{}] ({}) version [{}] long_name [{}] notes [{}]",
i.id,
z.short_name,
z.zoneidnumber,
z.version,
z.long_name,
z.note
i.notes
);
return WorldContentService::FindZoneResult{
.zone_id = static_cast<uint32>(z.zoneidnumber),
.instance = InstanceListRepository::NewEntity(),
.instance = i,
.zone = z
};
}
@ -359,7 +327,7 @@ WorldContentService::FindZoneResult WorldContentService::FindZone(uint32 zone_id
bool WorldContentService::IsInPublicStaticInstance(uint32 instance_id)
{
for (auto &i: m_zone_instances) {
for (auto &i: m_zone_static_instances) {
if (i.id == instance_id) {
return true;
}
@ -367,3 +335,15 @@ bool WorldContentService::IsInPublicStaticInstance(uint32 instance_id)
return false;
}
bool WorldContentService::DoesZonePassContentFiltering(const ZoneRepository::Zone &z)
{
auto f = ContentFlags{
.min_expansion = z.min_expansion,
.max_expansion = z.max_expansion,
.content_flags = z.content_flags,
.content_flags_disabled = z.content_flags_disabled
};
return DoesPassContentFiltering(f);
}

View File

@ -160,6 +160,7 @@ public:
WorldContentService * SetExpansionContext();
bool DoesPassContentFiltering(const ContentFlags& f);
bool DoesZonePassContentFiltering(const ZoneRepository::Zone& z);
WorldContentService * SetDatabase(Database *database);
Database *GetDatabase() const;
@ -189,10 +190,8 @@ private:
Database *m_content_database;
// holds a record of the zone table from the database
std::vector<ZoneRepository::Zone> m_zones = {};
WorldContentService *LoadStaticGlobalZoneInstances();
std::vector<InstanceListRepository::InstanceList> m_zone_instances;
WorldContentService * LoadZones();
std::vector<InstanceListRepository::InstanceList> m_zone_static_instances;
};
extern WorldContentService content_service;