LiteLoaderBDS-1.16.40/LiteLoader/Header/EventAPI.h

#pragma once
////////////////////////////////////////////////////////////////////////
//  Event System - Make it easier to subscribe game events
//
//  [Examples]
//
//  Event::PlayerJoinEvent::subscribe([](const Event::PlayerJoinEvent& ev) {        //Common situation - Const parameter "ev"
//      ev.mPlayer->sendText("hello world~");
//      return true;
//  });
//
//  Event::PlayerChatEvent::subscribe_ref([](Event::PlayerChatEvent& ev) {          //Need to modify event's parameters - Reference parameter "ev"
//      ev.mMessage = "[Plugin Modified] " + ev.mMessage;
//      return true;
//  });
//
//  auto listener = Event::PlayerPickupItemEvent::subscribe([](const Event::PlayerPickupItemEvent& ev) {
//      if(ev.mPlayer->getName() == "Jack")
//          return false;                           //Prevent events to be done - return false
//      else
//          return true;
//  });
//  ......
//  ......
//  listener.remove();                  //Remove this event listener
//
////////////////////////////////////////////////////////////////////////


#include "Global.h"
#include "LoggerAPI.h"
#include "MC/BlockInstance.hpp"
#include "MC/MCRESULT.hpp"
#include <functional>
#include <iterator>
#include <list>
#include <string>
#include <unordered_map>
#include <LLAPI.h>
#include <Utils/WinHelper.h>

class Actor;
class ServerPlayer;
class Player;
class Block;
class Mob;
struct ActorDefinitionIdentifier;
class ItemStack;
class ActorDamageSource;
class Certificate;
class CommandRegistry;
class MobEffectInstance;
class Container;
class WitherBoss;
class ArmorStand;
class Objective;
struct ScoreboardId;

namespace Event {
///////////////////////////// Impl /////////////////////////////

constexpr bool Ok = true;
constexpr bool Cancel = false;

template <typename EVENT>
class EventManager {
public:
    LIAPI static int addEventListener(std::string name, std::function<bool(EVENT)> callback);
    LIAPI static int addEventListenerRef(std::string name, std::function<bool(EVENT&)> callback);
    LIAPI static bool removeEventListener(int id);
    LIAPI static bool hasListener();
    LIAPI static bool call(EVENT& ev);
    LIAPI static bool callToPlugin(std::string pluginName, EVENT& ev);
};

template <typename EVENT>
class EventListener {
private:
    int listenerId;
    bool deleted = false;

public:
    EventListener(int id)
    : listenerId(id) {
    }

    void remove() {
        if (!deleted) {
            deleted = true;
            EventManager<EVENT>::removeEventListener(listenerId);
        }
    }
};

template <typename EVENT>
class EventTemplate {
public:
    static EventListener<EVENT> subscribe(std::function<bool(EVENT)> callback) {
        auto plugin = LL::getPlugin(GetCurrentModule());
        return EventListener<EVENT>(EventManager<EVENT>::addEventListener(plugin ? plugin->name : "", callback));
    }

    static EventListener<EVENT> subscribe_ref(std::function<bool(EVENT&)> callback) {
        auto plugin = LL::getPlugin(GetCurrentModule());
        return EventListener<EVENT>(EventManager<EVENT>::addEventListenerRef(plugin ? plugin->name : "", callback));
    }

    static void unsubscribe(const EventListener<EVENT>& listener) {
        listener.remove();
    }
    static bool hasListener() {
        return EventManager<EVENT>::hasListener();
    }

    bool call() {
        return EventManager<EVENT>::call(*(EVENT*)this);
    }
    bool callToPlugin(std::string pluginName) {
        return EventManager<EVENT>::callToPlugin(pluginName, *(EVENT*)this);
    }


    ////////////////////// For compatibility DO NOT UPDATE //////////////////////
protected:
    friend class EventManager<EVENT>;
    LIAPI static std::list<std::pair<string, std::function<bool(const EVENT&)>>> listeners;
    LIAPI static std::list<std::pair<string, std::function<bool(EVENT&)>>> listenersNoConst;
    ////////////////////// For compatibility DO NOT UPDATE //////////////////////
};


///////////////////////////// Player Events /////////////////////////////

class PlayerPreJoinEvent : public EventTemplate<PlayerPreJoinEvent> {
public:
    Player* mPlayer;
    string mIP;
    string mXUID;
};

class PlayerJoinEvent : public EventTemplate<PlayerJoinEvent> {
public:
    Player* mPlayer;
};

class PlayerLeftEvent : public EventTemplate<PlayerLeftEvent> {
public:
    Player* mPlayer;
    string mXUID;
};

class PlayerRespawnEvent : public EventTemplate<PlayerRespawnEvent> {
public:
    Player* mPlayer;
};

class PlayerUseItemEvent : public EventTemplate<PlayerUseItemEvent> {
public:
    Player* mPlayer;
    ItemStack* mItemStack;
};

class PlayerUseItemOnEvent : public EventTemplate<PlayerUseItemOnEvent> {
public:
    Player* mPlayer;
    ItemStack* mItemStack;
    BlockInstance mBlockInstance;
    unsigned char mFace;
    Vec3 mClickPos;
};

class PlayerChatEvent : public EventTemplate<PlayerChatEvent> {
public:
    Player* mPlayer;
    string mMessage;
};

class PlayerChangeDimEvent : public EventTemplate<PlayerChangeDimEvent> {
public:
    Player* mPlayer;
    int mToDimensionId;
};

class PlayerJumpEvent : public EventTemplate<PlayerJumpEvent> {
public:
    Player* mPlayer;
};

class PlayerSneakEvent : public EventTemplate<PlayerSneakEvent> {
public:
    Player* mPlayer;
    bool mIsSneaking;
};

class PlayerAttackEvent : public EventTemplate<PlayerAttackEvent> {
public:
    Player* mPlayer;
    Actor* mTarget;
    int mAttackDamage;
};

class PlayerAttackBlockEvent : public EventTemplate<PlayerAttackBlockEvent> {
public:
    Player* mPlayer;
    ItemStack* mItemStack;
    BlockInstance mBlockInstance;
};

class PlayerDieEvent : public EventTemplate<PlayerDieEvent> {
public:
    Player* mPlayer;
    ActorDamageSource* mDamageSource;
};

class PlayerPickupItemEvent : public EventTemplate<PlayerPickupItemEvent> {
public:
    Player* mPlayer;
    Actor* mItemEntity;
    ItemStack* mItemStack;
};

class PlayerDropItemEvent : public EventTemplate<PlayerDropItemEvent> {
public:
    Player* mPlayer;
    ItemStack* mItemStack;
};

class PlayerEatEvent : public EventTemplate<PlayerEatEvent> {
public:
    Player* mPlayer;
    ItemStack* mFoodItem;
};

class PlayerConsumeTotemEvent : public EventTemplate<PlayerConsumeTotemEvent> {
public:
    Player* mPlayer;
};

class PlayerCmdEvent : public EventTemplate<PlayerCmdEvent> {
public:
    Player* mPlayer;
    string mCommand;
    MCRESULT* mResult;
};

class PlayerEffectChangedEvent : public EventTemplate<PlayerEffectChangedEvent> {
public:
    enum class EventType {
        Add,
        Remove,
        Update
    };
    Player* mPlayer;
    EventType mEventType;
    MobEffectInstance* mEffect;
};

class PlayerStartDestroyBlockEvent : public EventTemplate<PlayerStartDestroyBlockEvent> {
public:
    Player* mPlayer;
    BlockInstance mBlockInstance;
};

class PlayerDestroyBlockEvent : public EventTemplate<PlayerDestroyBlockEvent> {
public:
    Player* mPlayer;
    BlockInstance mBlockInstance;
};

class PlayerPlaceBlockEvent : public EventTemplate<PlayerPlaceBlockEvent> {
public:
    Player* mPlayer;
    BlockInstance mBlockInstance;
};

class BlockPlacedByPlayerEvent : public EventTemplate<BlockPlacedByPlayerEvent> {
public:
    Player* mPlayer;
    BlockInstance mBlockInstance;
};

class PlayerOpenContainerEvent : public EventTemplate<PlayerOpenContainerEvent> {
public:
    Player* mPlayer;
    BlockInstance mBlockInstance;
    Container* mContainer;
};

class PlayerCloseContainerEvent : public EventTemplate<PlayerCloseContainerEvent> {
public:
    Player* mPlayer;
    BlockInstance mBlockInstance;
    Container* mContainer;
};

class PlayerInventoryChangeEvent : public EventTemplate<PlayerInventoryChangeEvent> {
public:
    Player* mPlayer;
    int mSlot;
    ItemStack* mPreviousItemStack;
    ItemStack* mNewItemStack;
};

class PlayerMoveEvent : public EventTemplate<PlayerMoveEvent> {
public:
    Player* mPlayer;
    Vec3 mPos;
};

class PlayerSprintEvent : public EventTemplate<PlayerSprintEvent> {
public:
    Player* mPlayer;
    bool mIsSprinting;
};

class PlayerSetArmorEvent : public EventTemplate<PlayerSetArmorEvent> {
public:
    Player* mPlayer;
    int mSlot;
    ItemStack* mArmorItem;
};

class PlayerUseRespawnAnchorEvent : public EventTemplate<PlayerUseRespawnAnchorEvent> {
public:
    Player* mPlayer;
    BlockInstance mBlockInstance;
};

class PlayerOpenContainerScreenEvent : public EventTemplate<PlayerOpenContainerScreenEvent> {
public:
    Player* mPlayer;
};

class PlayerUseFrameBlockEvent : public EventTemplate<PlayerUseFrameBlockEvent> {
public:
    enum class Type {
        Use,
        Attack
    };
    Type mType;
    Player* mPlayer;
    BlockInstance mBlockInstance;
};

class PlayerScoreChangedEvent : public EventTemplate<PlayerScoreChangedEvent> {
public:
    Player* mPlayer;
    int mScore;
    Objective* mObjective;
    ScoreboardId* mScoreboardId;
};

class PlayerExperienceAddEvent : public EventTemplate<PlayerExperienceAddEvent> {
public:
    Player* mPlayer;
    int mExp;
};

class PlayerInteractEntityEvent : public EventTemplate<PlayerInteractEntityEvent> {
public:
    enum class InteractiveMode {
        RightClick,
        LeftClick
    };

    ServerPlayer* mPlayer;
    ActorRuntimeID mTargetId;
    InteractiveMode mInteractiveMode;
};


///////////////////////////// Block Events /////////////////////////////

class BlockInteractedEvent : public EventTemplate<BlockInteractedEvent> {
public:
    BlockInstance mBlockInstance;
    Player* mPlayer;
};

class BlockChangedEvent : public EventTemplate<BlockChangedEvent> {
public:
    BlockInstance mPreviousBlockInstance;
    BlockInstance mNewBlockInstance;
};

class BlockExplodedEvent : public EventTemplate<BlockExplodedEvent> {
public:
    BlockInstance mBlockInstance;
    Actor* mExplodeSource;
};

class FireSpreadEvent : public EventTemplate<FireSpreadEvent> {
public:
    BlockPos mTarget;
    int mDimensionId;
};

class ContainerChangeEvent : public EventTemplate<ContainerChangeEvent> {
public:
    Player* mPlayer;
    Actor* mActor;
    BlockInstance mBlockInstance;
    Container* mContainer;
    int mSlot;
    ItemStack* mPreviousItemStack;
    ItemStack* mNewItemStack;
};

class ProjectileHitBlockEvent : public EventTemplate<ProjectileHitBlockEvent> {
public:
    BlockInstance mBlockInstance;
    Actor* mSource;
};

class RedStoneUpdateEvent : public EventTemplate<RedStoneUpdateEvent> {
public:
    BlockInstance mBlockInstance;
    int mRedStonePower;
    bool mIsActivated;
};

class HopperSearchItemEvent : public EventTemplate<HopperSearchItemEvent> {
public:
    bool isMinecart;
    BlockInstance mHopperBlock;
    Vec3 mMinecartPos;
    int mDimensionId;
};

class HopperPushOutEvent : public EventTemplate<HopperPushOutEvent> {
public:
    Vec3 mPos;
    int mDimensionId;
};

class PistonTryPushEvent : public EventTemplate<PistonTryPushEvent> {
public:
    BlockInstance mPistonBlockInstance;
    BlockInstance mTargetBlockInstance;
};

class PistonPushEvent : public EventTemplate<PistonPushEvent> {
public:
    BlockInstance mPistonBlockInstance;
    BlockInstance mTargetBlockInstance;
};

class FarmLandDecayEvent : public EventTemplate<FarmLandDecayEvent> {
public:
    BlockInstance mBlockInstance;
    Actor* mActor;
};

class LiquidSpreadEvent : public EventTemplate<LiquidSpreadEvent> {
public:
    BlockInstance mBlockInstance;
    BlockPos mTarget;
    int mDimensionId;
};

class CmdBlockExecuteEvent : public EventTemplate<CmdBlockExecuteEvent> {
public:
    string mCommand;
    bool mIsMinecart;
    BlockInstance mBlockInstance;
    Actor* mMinecart;
};

class BlockExplodeEvent : public EventTemplate<BlockExplodeEvent> {
public:
    BlockInstance mBlockInstance;
    float mRadius;
    float mMaxResistance;
    bool mBreaking;
    bool mFire;
};


///////////////////////////// Entity Events /////////////////////////////

class EntityExplodeEvent : public EventTemplate<EntityExplodeEvent> {
public:
    Actor* mActor;
    Vec3 mPos;
    BlockSource* mDimension;
    float mRadius;
    float mMaxResistance;
    bool mBreaking;
    bool mFire;
};

class MobHurtEvent : public EventTemplate<MobHurtEvent> {
public:
    Mob* mMob;
    ActorDamageSource* mDamageSource;
    float mDamage;
};

class MobDieEvent : public EventTemplate<MobDieEvent> {
public:
    Mob* mMob;
    ActorDamageSource* mDamageSource;
};

class ProjectileHitEntityEvent : public EventTemplate<ProjectileHitEntityEvent> {
public:
    Actor* mTarget;
    Actor* mSource;
};

class WitherBossDestroyEvent : public EventTemplate<WitherBossDestroyEvent> {
public:
    WitherBoss* mWitherBoss;
    AABB mDestroyRange = {{}, {}};
};

class EntityRideEvent : public EventTemplate<EntityRideEvent> {
public:
    Actor* mRider;
    Actor* mVehicle;
};

class EntityStepOnPressurePlateEvent : public EventTemplate<EntityStepOnPressurePlateEvent> {
public:
    Actor* mActor;
    BlockInstance mBlockInstance;
};

class NpcCmdEvent : public EventTemplate<NpcCmdEvent> {
public:
    Actor* mNpc;
    std::string mCommand;
    Player* mPlayer;
};

class ProjectileSpawnEvent : public EventTemplate<ProjectileSpawnEvent> {
public:
    Actor* mShooter;
    ActorDefinitionIdentifier* mIdentifier;
    std::string mType;
};

class ProjectileCreatedEvent : public EventTemplate<ProjectileCreatedEvent> {
public:
    Actor* mShooter;
    Actor* mProjectile;
};

class ArmorStandChangeEvent : public EventTemplate<ArmorStandChangeEvent> {
public:
    ArmorStand* mArmorStand;
    Player* mPlayer;
    int mSlot;
};

class EntityTransformEvent : public EventTemplate<EntityTransformEvent> {
public:
    ActorUniqueID* mBeforeEntityUniqueId;
    Actor* mAfterEntity;
};

///////////////////////////// Other Events /////////////////////////////

class PostInitEvent : public EventTemplate<PostInitEvent> {
};

class ServerStartedEvent : public EventTemplate<ServerStartedEvent> {
};

class ServerStoppedEvent : public EventTemplate<ServerStoppedEvent> {
};

class ConsoleCmdEvent : public EventTemplate<ConsoleCmdEvent> {
public:
    std::string mCommand;
};

class RegCmdEvent : public EventTemplate<RegCmdEvent> {
public:
    CommandRegistry* mCommandRegistry;
};

class ConsoleOutputEvent : public EventTemplate<ConsoleOutputEvent> {
public:
    std::string mOutput;
};

class PlayerBedEnterEvent : public EventTemplate<PlayerBedEnterEvent> {
public:
    Player* mPlayer;
    BlockInstance* mBlockInstance;
};

class ScriptPluginManagerEvent : public EventTemplate<ScriptPluginManagerEvent> {
public:
    enum class Operation {
        Load,
        Unload,
        Reload
    };
    enum class PluginType {
        SingleFile,             // like .js / .lua
        PluginPackage,          // like .llplugin
        UncompressedPackage     // like plugins/nodejs/ABC
    };

    Operation operation;
    std::string target;
    std::string otherInfo;
    std::string pluginExtention;

    bool success = false;
    PluginType pluginType;
};

class MobSpawnEvent : public EventTemplate<MobSpawnEvent> {
public:
    string mTypeName;
    Vec3 mPos;
    int mDimensionId;
};

class FormResponsePacketEvent : public EventTemplate<FormResponsePacketEvent> {
public:
    ServerPlayer* mServerPlayer;
    unsigned mFormId;
    string mJsonData;
};

class ResourcePackInitEvent : public EventTemplate<ResourcePackInitEvent> {
public:
    ResourcePackRepository* mRepo;
};

}; // namespace Event