feat: add FourKit plugin host with dual server build

Adds the FourKit .NET 10 plugin host as a second dedicated server
build flavour alongside the existing vanilla server. Both flavours
build from the same source tree, with FourKit gated by the
MINECRAFT_SERVER_FOURKIT_BUILD preprocessor define.

Build layout:

  Minecraft.Server         vanilla, no plugin support, no .NET dep
  Minecraft.Server.FourKit FourKit-enabled, ships with bundled
                           .NET 10 self-contained runtime in runtime/
                           and an empty plugins/ folder

Both produce a Minecraft.Server.exe in their own per-target output
dir. The variant identity lives in the directory name, not the
binary name, so either flavour can be shipped as a drop-in.

Native bridge (Minecraft.Server/FourKit*.{cpp,h}):

* FourKitRuntime: hosts CoreCLR via hostfxr's command-line init API
  (the runtime-config API does not support self-contained components)
* FourKitBridge: ~50 Fire* event entry points, with inline no-op
  stubs for the standalone build so gameplay code can call them
  unconditionally
* FourKitNatives: ~80 native callbacks the managed side invokes
  for player/world/inventory mutations
* FourKitMappers: type and enum mapping helpers

Managed plugin host (Minecraft.Server.FourKit/):

* Bukkit-style API: Player, World, Block, Inventory, Command,
  Listener, EventHandler attribute, ~54 event classes
* PluginLoader with per-plugin AssemblyLoadContext
* FourKitHost as the [UnmanagedCallersOnly] entry point table
* Runtime resolves plugins relative to the host process so they
  always live next to Minecraft.Server.exe regardless of where the
  managed assembly itself is loaded from

Engine hooks (Minecraft.Client/, Minecraft.World/):

* Player lifecycle (PreLogin, Login, Join, Quit, Kick, Move,
  Teleport, Portal, Death) wired into PendingConnection and
  PlayerConnection without disturbing the cipher handshake or
  identity-token security flow
* Inventory open/click/drop hooks across every container menu type
* Block place/break/grow/burn/spread/from-to hooks across the
  full tile family
* Bed enter/leave, sign change, entity damage/death, ender pearl
  teleport hooks

Regression fixes preserved while applying donor diffs:

* ServerPlayer::die() retains the LCE-Revelations hardcore branch
  (setGameMode(ADVENTURE) + banPlayerForHardcoreDeath) in both the
  FourKit and non-FourKit code paths
* ServerLevel::entityAdded() retains the sub-entity ID reassignment
  loop required by the client's handleAddMob offset, fixing Ender
  Dragon and Wither boss multi-part hit detection
* LivingEntity::travel() retains the raw Player* cast and the
  cached frictionTile, both Revelations perf wins that the donor
  silently reverted
* ServerLogger.cpp keeps the file-logging code donor stripped
* PlayerList.cpp end portal transition fix and UIScene_EndPoem
  bounds-check are intact

Build system:

* Top-level CMakeLists.txt adds the Minecraft.Server.FourKit
  subdirectory and pulls in the new shared cmake/ServerTarget.cmake
  helper
* Minecraft.Server/cmake/sources/Common.cmake is now location
  independent (uses CMAKE_CURRENT_LIST_DIR) so the source list
  can be consumed from either server target's CMakeLists.txt
* The seven FourKit*.cpp/h files live in their own
  _MINECRAFT_SERVER_COMMON_SERVER_FOURKIT variable so the
  standalone target omits them
* configure-time .NET 10 SDK check fails fast with a clear
  download link if the SDK is missing
* global.json pins the SDK to 10.0.100 with latestFeature
  rollforward

Sample plugin (samples/HelloPlugin/) demonstrates the loader and
the PlayerJoinEvent listener pattern.

CI:

* nightly.yml builds both server flavours, ships
  LCE-Revelations-Server-Win64.zip and
  LCE-Revelations-Server-Win64-FourKit.zip, attests both, and
  updates release notes for the dual-flavour layout
* pull-request.yml pulls in actions/setup-dotnet so the FourKit
  publish step works in PR validation
* All zip artifacts and the client zip are renamed from
  LCREWindows64 to LCE-Revelations-{Client,Server}-Win64

Documentation:

* COMPILE.md gets a VS 2022 quick start, .NET 10 prereq section,
  server flavours explanation, and a troubleshooting section
* docs/FOURKIT_PORT_RECON.md captures the file-by-file recon that
  drove the port
* docs/FOURKIT_PARITY.md is the canonical reference for which
  events FourKit fires

Docker:

* docker-compose.dedicated-server.yml MC_RUNTIME_DIR default points
  at the vanilla CMake output. The FourKit Docker image is
  intentionally NOT shipped yet because hosting .NET 10 self
  contained inside Wine has not been smoke-tested
This commit is contained in:
itsRevela
2026-04-08 03:02:48 -05:00
parent 5d56f5080f
commit 42a582fb9f
197 changed files with 20946 additions and 788 deletions
@@ -0,0 +1,22 @@
namespace Minecraft.Server.FourKit.Event.Entity;
using FourKitEntity = Minecraft.Server.FourKit.Entity;
/// <summary>
/// Called when an entity is damaged by an entity.
/// </summary>
public class EntityDamageByEntityEvent : EntityDamageEvent
{
private readonly FourKitEntity.Entity _damager;
internal EntityDamageByEntityEvent(FourKitEntity.Entity damager, FourKitEntity.Entity damagee, EntityDamageEvent.DamageCause cause, double damage)
: base(damagee, cause, damage)
{
_damager = damager;
}
/// <summary>
/// Returns the entity that damaged the defender.
/// </summary>
/// <returns>The Entity that damaged the defender.</returns>
public FourKitEntity.Entity getDamager() => _damager;
}
@@ -0,0 +1,112 @@
namespace Minecraft.Server.FourKit.Event.Entity;
using FourKitEntity = Minecraft.Server.FourKit.Entity;
/// <summary>
/// Stores data for damage events.
/// </summary>
public class EntityDamageEvent : EntityEvent, Cancellable
{
/// <summary>
/// An enum to specify the cause of the damage.
/// </summary>
public enum DamageCause
{
/// <summary>Damage caused by being in the area when a block explodes.</summary>
BLOCK_EXPLOSION,
/// <summary>Damage caused when an entity contacts a block such as a Cactus.</summary>
CONTACT,
/// <summary>Custom damage.</summary>
CUSTOM,
/// <summary>Damage caused by running out of air while in water.</summary>
DROWNING,
/// <summary>Damage caused when an entity attacks another entity.</summary>
ENTITY_ATTACK,
/// <summary>Damage caused by being in the area when an entity, such as a Creeper, explodes.</summary>
ENTITY_EXPLOSION,
/// <summary>Damage caused when an entity falls a distance greater than 3 blocks.</summary>
FALL,
/// <summary>Damage caused by being hit by a falling block which deals damage.</summary>
FALLING_BLOCK,
/// <summary>Damage caused by direct exposure to fire.</summary>
FIRE,
/// <summary>Damage caused due to burns caused by fire.</summary>
FIRE_TICK,
/// <summary>Damage caused by direct exposure to lava.</summary>
LAVA,
/// <summary>Damage caused by being struck by lightning.</summary>
LIGHTNING,
/// <summary>Damage caused by being hit by a damage potion or spell.</summary>
MAGIC,
/// <summary>Damage caused due to a snowman melting.</summary>
MELTING,
/// <summary>Damage caused due to an ongoing poison effect.</summary>
POISON,
/// <summary>Damage caused when attacked by a projectile.</summary>
PROJECTILE,
/// <summary>Damage caused by starving due to having an empty hunger bar.</summary>
STARVATION,
/// <summary>Damage caused by being put in a block.</summary>
SUFFOCATION,
/// <summary>Damage caused by committing suicide using the command "/kill".</summary>
SUICIDE,
/// <summary>Damage caused in retaliation to another attack by the Thorns enchantment.</summary>
THORNS,
/// <summary>Damage caused by falling into the void.</summary>
VOID,
/// <summary>Damage caused by Wither potion effect.</summary>
WITHER,
}
private readonly DamageCause _cause;
private double _damage;
private readonly double _finalDamage;
private bool _cancel;
internal EntityDamageEvent(FourKitEntity.Entity damagee, DamageCause cause, double damage)
: base(damagee)
{
_cause = cause;
_damage = damage;
_finalDamage = damage;
_cancel = false;
}
/// <summary>
/// Gets the cause of the damage.
/// </summary>
/// <returns>A <see cref="DamageCause"/> value detailing the cause of the damage.</returns>
public DamageCause getCause() => _cause;
/// <summary>
/// Gets the raw amount of damage caused by the event.
/// </summary>
/// <returns>The raw amount of damage.</returns>
public double getDamage() => _damage;
/// <summary>
/// Gets the amount of damage caused by the event after all damage
/// reduction is applied.
/// </summary>
/// <returns>The amount of damage after reduction.</returns>
public double getFinalDamage() => _finalDamage;
/// <inheritdoc />
public bool isCancelled() => _cancel;
/// <inheritdoc />
public void setCancelled(bool cancel)
{
_cancel = cancel;
}
/// <summary>
/// Sets the raw amount of damage caused by the event.
/// </summary>
/// <param name="damage">The raw amount of damage.</param>
public void setDamage(double damage)
{
_damage = damage;
}
}
@@ -0,0 +1,53 @@
namespace Minecraft.Server.FourKit.Event.Entity;
using FourKitEntity = Minecraft.Server.FourKit.Entity;
using Minecraft.Server.FourKit.Inventory;
/// <summary>
/// Thrown whenever a LivingEntity dies.
/// </summary>
public class EntityDeathEvent : EntityEvent
{
private readonly List<ItemStack> _drops;
private int _droppedExp;
internal EntityDeathEvent(FourKitEntity.LivingEntity entity, List<ItemStack> drops)
: this(entity, drops, 0)
{
}
internal EntityDeathEvent(FourKitEntity.LivingEntity what, List<ItemStack> drops, int droppedExp)
: base(what)
{
_drops = drops;
_droppedExp = droppedExp;
}
/// <summary>
/// Returns the Entity involved in this event.
/// </summary>
/// <returns>Entity who is involved in this event.</returns>
public new FourKitEntity.LivingEntity getEntity() => (FourKitEntity.LivingEntity)entity;
/// <summary>
/// Gets how much EXP should be dropped from this death.
/// This does not indicate how much EXP should be taken from the entity
/// in question, merely how much should be created after its death.
/// </summary>
/// <returns>Amount of EXP to drop.</returns>
public int getDroppedExp() => _droppedExp;
/// <summary>
/// Sets how much EXP should be dropped from this death.
/// This does not indicate how much EXP should be taken from the entity
/// in question, merely how much should be created after its death.
/// </summary>
/// <param name="exp">Amount of EXP to drop.</param>
public void setDroppedExp(int exp) => _droppedExp = exp;
/// <summary>
/// Gets all the items which will drop when the entity dies.
/// </summary>
/// <returns>Items to drop when the entity dies.</returns>
public List<ItemStack> getDrops() => _drops;
}
@@ -0,0 +1,28 @@
namespace Minecraft.Server.FourKit.Event.Entity;
using FourKitEntity = Minecraft.Server.FourKit.Entity;
/// <summary>
/// Represents an Entity-related event.
/// </summary>
public abstract class EntityEvent : Event
{
protected FourKitEntity.Entity entity;
protected EntityEvent(FourKitEntity.Entity what)
{
entity = what;
}
/// <summary>
/// Returns the Entity involved in this event.
/// </summary>
/// <returns>Entity who is involved in this event.</returns>
public FourKitEntity.Entity getEntity() => entity;
/// <summary>
/// Gets the EntityType of the Entity involved in this event.
/// </summary>
/// <returns>EntityType of the Entity involved in this event.</returns>
public FourKitEntity.EntityType getEntityType() => entity.getType();
}
@@ -0,0 +1,110 @@
namespace Minecraft.Server.FourKit.Event.Entity;
using FourKitEntity = Minecraft.Server.FourKit.Entity;
using Minecraft.Server.FourKit.Inventory;
/// <summary>
/// Thrown whenever a Player dies.
/// </summary>
public class PlayerDeathEvent : EntityDeathEvent
{
private string _deathMessage;
private int _newExp;
private int _newLevel;
private bool _keepLevel;
private bool _keepInventory;
internal PlayerDeathEvent(FourKitEntity.Player player, List<ItemStack> drops, int droppedExp, string deathMessage)
: this(player, drops, droppedExp, 0, deathMessage)
{
}
/// <summary>
/// Creates a new <see cref="PlayerDeathEvent"/>.
/// </summary>
/// <param name="player">The Player who died.</param>
/// <param name="drops">The items to drop when the player dies.</param>
/// <param name="droppedExp">The amount of experience to drop.</param>
/// <param name="newExp">The new EXP the Player should have at respawn.</param>
/// <param name="deathMessage">The death message to display.</param>
public PlayerDeathEvent(FourKitEntity.Player player, List<ItemStack> drops, int droppedExp, int newExp, string deathMessage)
: base(player, drops, droppedExp)
{
_deathMessage = deathMessage;
_newExp = newExp;
_newLevel = 0;
_keepLevel = false;
_keepInventory = false;
}
/// <summary>
/// Returns the Entity involved in this event.
/// </summary>
/// <returns>Entity who is involved in this event.</returns>
public new FourKitEntity.Player getEntity() => (FourKitEntity.Player)entity;
/// <summary>
/// Get the death message that will appear to everyone on the server.
/// </summary>
/// <returns>Message to appear to other players on the server.</returns>
public string getDeathMessage() => _deathMessage;
/// <summary>
/// Set the death message that will appear to everyone on the server.
/// </summary>
/// <param name="deathMessage">Message to appear to other players on the server.</param>
public void setDeathMessage(string deathMessage) => _deathMessage = deathMessage;
/// <summary>
/// Gets how much EXP the Player should have at respawn.
/// This does not indicate how much EXP should be dropped, please see
/// <see cref="EntityDeathEvent.getDroppedExp"/> for that.
/// </summary>
/// <returns>New EXP of the respawned player.</returns>
public int getNewExp() => _newExp;
/// <summary>
/// Sets how much EXP the Player should have at respawn.
/// This does not indicate how much EXP should be dropped, please see
/// <see cref="EntityDeathEvent.setDroppedExp"/> for that.
/// </summary>
/// <param name="exp">New EXP of the respawned player.</param>
public void setNewExp(int exp) => _newExp = exp;
/// <summary>
/// Gets the Level the Player should have at respawn.
/// </summary>
/// <returns>New Level of the respawned player.</returns>
public int getNewLevel() => _newLevel;
/// <summary>
/// Sets the Level the Player should have at respawn.
/// </summary>
/// <param name="level">New Level of the respawned player.</param>
public void setNewLevel(int level) => _newLevel = level;
/// <summary>
/// Gets if the Player should keep all EXP at respawn.
/// This flag overrides other EXP settings.
/// </summary>
/// <returns><c>true</c> if Player should keep all pre-death exp.</returns>
public bool getKeepLevel() => _keepLevel;
/// <summary>
/// Sets if the Player should keep all EXP at respawn.
/// This overrides all other EXP settings.
/// </summary>
/// <param name="keepLevel"><c>true</c> to keep all current value levels.</param>
public void setKeepLevel(bool keepLevel) => _keepLevel = keepLevel;
/// <summary>
/// Gets if the Player keeps inventory on death.
/// </summary>
/// <returns><c>true</c> if the player keeps inventory on death.</returns>
public bool getKeepInventory() => _keepInventory;
/// <summary>
/// Sets if the Player keeps inventory on death.
/// </summary>
/// <param name="keepInventory"><c>true</c> to keep the inventory.</param>
public void setKeepInventory(bool keepInventory) => _keepInventory = keepInventory;
}