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// PluginLua.h
// Declares the cPluginLua class representing a plugin written in Lua
#pragma once
#include "Plugin.h"
#include "WebPlugin.h"
#include "LuaState.h"
// Names for the global variables through which the plugin is identified in its LuaState
#define LUA_PLUGIN_NAME_VAR_NAME "_MCServerInternal_PluginName"
#define LUA_PLUGIN_INSTANCE_VAR_NAME "_MCServerInternal_PluginInstance"
// fwd: UI/Window.h
class cWindow;
// tolua_begin
class cPluginLua :
public cPlugin,
public cWebPlugin
{
public:
// tolua_end
/** A RAII-style mutex lock for accessing the internal LuaState.
This will be the only way to retrieve the plugin's LuaState;
therefore it directly supports accessing the LuaState of the locked plugin.
Usage:
cPluginLua::cOperation Op(SomePlugin);
Op().Call(...) // Call a function in the plugin's LuaState
*/
class cOperation
{
public:
cOperation(cPluginLua & a_Plugin) :
m_Plugin(a_Plugin),
m_Lock(a_Plugin.m_CriticalSection)
{
}
cLuaState & operator ()(void) { return m_Plugin.m_LuaState; }
protected:
cPluginLua & m_Plugin;
/** RAII lock for m_Plugin.m_CriticalSection */
cCSLock m_Lock;
} ;
cPluginLua(const AString & a_PluginDirectory);
~cPluginLua();
virtual void OnDisable(void) override;
virtual bool Initialize(void) override;
virtual void Tick(float a_Dt) override;
virtual bool OnBlockSpread (cWorld & a_World, int a_BlockX, int a_BlockY, int a_BlockZ, eSpreadSource a_Source) override;
virtual bool OnBlockToPickups (cWorld & a_World, cEntity * a_Digger, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, cItems & a_Pickups) override;
virtual bool OnChat (cPlayer & a_Player, AString & a_Message) override;
virtual bool OnChunkAvailable (cWorld & a_World, int a_ChunkX, int a_ChunkZ) override;
virtual bool OnChunkGenerated (cWorld & a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc) override;
virtual bool OnChunkGenerating (cWorld & a_World, int a_ChunkX, int a_ChunkZ, cChunkDesc * a_ChunkDesc) override;
virtual bool OnChunkUnloaded (cWorld & a_World, int a_ChunkX, int a_ChunkZ) override;
virtual bool OnChunkUnloading (cWorld & a_World, int a_ChunkX, int a_ChunkZ) override;
virtual bool OnCollectingPickup (cPlayer & a_Player, cPickup & a_Pickup) override;
virtual bool OnCraftingNoRecipe (cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe & a_Recipe) override;
virtual bool OnDisconnect (cClientHandle & a_Client, const AString & a_Reason) override;
virtual bool OnEntityAddEffect (cEntity & a_Entity, int a_EffectType, int a_EffectDurationTicks, int a_EffectIntensity, double a_DistanceModifier) override;
virtual bool OnExecuteCommand (cPlayer * a_Player, const AStringVector & a_Split) override;
virtual bool OnExploded (cWorld & a_World, double a_ExplosionSize, bool a_CanCauseFire, double a_X, double a_Y, double a_Z, eExplosionSource a_Source, void * a_SourceData) override;
virtual bool OnExploding (cWorld & a_World, double & a_ExplosionSize, bool & a_CanCauseFire, double a_X, double a_Y, double a_Z, eExplosionSource a_Source, void * a_SourceData) override;
virtual bool OnHandshake (cClientHandle & a_Client, const AString & a_Username) override;
virtual bool OnHopperPullingItem (cWorld & a_World, cHopperEntity & a_Hopper, int a_DstSlotNum, cBlockEntityWithItems & a_SrcEntity, int a_SrcSlotNum) override;
virtual bool OnHopperPushingItem (cWorld & a_World, cHopperEntity & a_Hopper, int a_SrcSlotNum, cBlockEntityWithItems & a_DstEntity, int a_DstSlotNum) override;
virtual bool OnKilling (cEntity & a_Victim, cEntity * a_Killer, TakeDamageInfo & a_TDI) override;
virtual bool OnLogin (cClientHandle & a_Client, int a_ProtocolVersion, const AString & a_Username) override;
virtual bool OnPlayerAnimation (cPlayer & a_Player, int a_Animation) override;
virtual bool OnPlayerBreakingBlock (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) override;
virtual bool OnPlayerBrokenBlock (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) override;
virtual bool OnPlayerDestroyed (cPlayer & a_Player) override;
virtual bool OnPlayerEating (cPlayer & a_Player) override;
virtual bool OnPlayerFished (cPlayer & a_Player, const cItems & a_Reward) override;
virtual bool OnPlayerFishing (cPlayer & a_Player, cItems & a_Reward) override;
virtual bool OnPlayerFoodLevelChange (cPlayer & a_Player, int a_NewFoodLevel) override;
virtual bool OnPlayerJoined (cPlayer & a_Player) override;
virtual bool OnPlayerLeftClick (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, char a_Status) override;
virtual bool OnPlayerMoving (cPlayer & a_Player, const Vector3d & a_OldPosition, const Vector3d & a_NewPosition) override;
virtual bool OnPlayerPlacedBlock (cPlayer & a_Player, const sSetBlock & a_BlockChange) override;
virtual bool OnPlayerPlacingBlock (cPlayer & a_Player, const sSetBlock & a_BlockChange) override;
virtual bool OnPlayerRightClick (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ) override;
virtual bool OnPlayerRightClickingEntity(cPlayer & a_Player, cEntity & a_Entity) override;
virtual bool OnPlayerShooting (cPlayer & a_Player) override;
virtual bool OnPlayerSpawned (cPlayer & a_Player) override;
virtual bool OnEntityTeleport (cEntity & a_Entity, const Vector3d & a_OldPosition, const Vector3d & a_NewPosition) override;
virtual bool OnPlayerTossingItem (cPlayer & a_Player) override;
virtual bool OnPlayerUsedBlock (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) override;
virtual bool OnPlayerUsedItem (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ) override;
virtual bool OnPlayerUsingBlock (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) override;
virtual bool OnPlayerUsingItem (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ) override;
virtual bool OnPluginMessage (cClientHandle & a_Client, const AString & a_Channel, const AString & a_Message) override;
virtual bool OnPluginsLoaded (void) override;
virtual bool OnPostCrafting (cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe & a_Recipe) override;
virtual bool OnPreCrafting (cPlayer & a_Player, cCraftingGrid & a_Grid, cCraftingRecipe & a_Recipe) override;
virtual bool OnProjectileHitBlock (cProjectileEntity & a_Projectile, int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_Face, const Vector3d & a_BlockHitPos) override;
virtual bool OnProjectileHitEntity (cProjectileEntity & a_Projectile, cEntity & a_HitEntity) override;
virtual bool OnServerPing (cClientHandle & a_ClientHandle, AString & a_ServerDescription, int & a_OnlinePlayersCount, int & a_MaxPlayersCount, AString & a_Favicon) override;
virtual bool OnSpawnedEntity (cWorld & a_World, cEntity & a_Entity) override;
virtual bool OnSpawnedMonster (cWorld & a_World, cMonster & a_Monster) override;
virtual bool OnSpawningEntity (cWorld & a_World, cEntity & a_Entity) override;
virtual bool OnSpawningMonster (cWorld & a_World, cMonster & a_Monster) override;
virtual bool OnTakeDamage (cEntity & a_Receiver, TakeDamageInfo & a_TakeDamageInfo) override;
virtual bool OnUpdatedSign (cWorld & a_World, int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4, cPlayer * a_Player) override;
virtual bool OnUpdatingSign (cWorld & a_World, int a_BlockX, int a_BlockY, int a_BlockZ, AString & a_Line1, AString & a_Line2, AString & a_Line3, AString & a_Line4, cPlayer * a_Player) override;
virtual bool OnWeatherChanged (cWorld & a_World) override;
virtual bool OnWeatherChanging (cWorld & a_World, eWeather & a_NewWeather) override;
virtual bool OnWorldStarted (cWorld & a_World) override;
virtual bool OnWorldTick (cWorld & a_World, std::chrono::milliseconds a_Dt, std::chrono::milliseconds a_LastTickDurationMSec) override;
virtual bool HandleCommand(const AStringVector & a_Split, cPlayer & a_Player, const AString & a_FullCommand) override;
virtual bool HandleConsoleCommand(const AStringVector & a_Split, cCommandOutputCallback & a_Output, const AString & a_FullCommand) override;
virtual void ClearCommands(void) override;
virtual void ClearConsoleCommands(void) override;
/** Returns true if the plugin contains the function for the specified hook type, using the old-style registration (#121) */
bool CanAddOldStyleHook(int a_HookType);
// cWebPlugin override
virtual const AString GetWebTitle(void) const {return GetName(); }
// cWebPlugin and WebAdmin stuff
virtual AString HandleWebRequest(const HTTPRequest * a_Request) override;
bool AddWebTab(const AString & a_Title, lua_State * a_LuaState, int a_FunctionReference); // >> EXPORTED IN MANUALBINDINGS <<
/** Binds the command to call the function specified by a Lua function reference. Simply adds to CommandMap. */
void BindCommand(const AString & a_Command, int a_FnRef);
/** Binds the console command to call the function specified by a Lua function reference. Simply adds to CommandMap. */
void BindConsoleCommand(const AString & a_Command, int a_FnRef);
cLuaState & GetLuaState(void) { return m_LuaState; }
cCriticalSection & GetCriticalSection(void) { return m_CriticalSection; }
/** Removes a previously referenced object (luaL_unref()) */
void Unreference(int a_LuaRef);
/** Calls the plugin-specified "cLuaWindow closing" callback. Returns true only if the callback returned true */
bool CallbackWindowClosing(int a_FnRef, cWindow & a_Window, cPlayer & a_Player, bool a_CanRefuse);
/** Calls the plugin-specified "cLuaWindow slot changed" callback. */
void CallbackWindowSlotChanged(int a_FnRef, cWindow & a_Window, int a_SlotNum);
/** Returns the name of Lua function that should handle the specified hook type in the older (#121) API */
static const char * GetHookFnName(int a_HookType);
/** Adds a Lua function to be called for the specified hook.
The function has to be on the Lua stack at the specified index a_FnRefIdx
Returns true if the hook was added successfully.
*/
bool AddHookRef(int a_HookType, int a_FnRefIdx);
/** Calls a function in this plugin's LuaState with parameters copied over from a_ForeignState.
The values that the function returns are placed onto a_ForeignState.
Returns the number of values returned, if successful, or negative number on failure. */
int CallFunctionFromForeignState(
const AString & a_FunctionName,
cLuaState & a_ForeignState,
int a_ParamStart,
int a_ParamEnd
);
// The following templates allow calls to arbitrary Lua functions residing in the plugin:
/** Call a Lua function with 0 args */
template <typename FnT> bool Call(FnT a_Fn)
{
cCSLock Lock(m_CriticalSection);
return m_LuaState.Call(a_Fn);
}
/** Call a Lua function with 1 arg */
template <typename FnT, typename ArgT0> bool Call(FnT a_Fn, ArgT0 a_Arg0)
{
cCSLock Lock(m_CriticalSection);
return m_LuaState.Call(a_Fn, a_Arg0);
}
/** Call a Lua function with 2 args */
template <typename FnT, typename ArgT0, typename ArgT1> bool Call(FnT a_Fn, ArgT0 a_Arg0, ArgT1 a_Arg1)
{
cCSLock Lock(m_CriticalSection);
return m_LuaState.Call(a_Fn, a_Arg0, a_Arg1);
}
/** Call a Lua function with 3 args */
template <typename FnT, typename ArgT0, typename ArgT1, typename ArgT2> bool Call(FnT a_Fn, ArgT0 a_Arg0, ArgT1 a_Arg1, ArgT2 a_Arg2)
{
cCSLock Lock(m_CriticalSection);
return m_LuaState.Call(a_Fn, a_Arg0, a_Arg1, a_Arg2);
}
/** Call a Lua function with 4 args */
template <typename FnT, typename ArgT0, typename ArgT1, typename ArgT2, typename ArgT3> bool Call(FnT a_Fn, ArgT0 a_Arg0, ArgT1 a_Arg1, ArgT2 a_Arg2, ArgT3 a_Arg3)
{
cCSLock Lock(m_CriticalSection);
return m_LuaState.Call(a_Fn, a_Arg0, a_Arg1, a_Arg2, a_Arg3);
}
protected:
/** Maps command name into Lua function reference */
typedef std::map<AString, int> CommandMap;
/** Provides an array of Lua function references */
typedef std::vector<cLuaState::cRef *> cLuaRefs;
/** Maps hook types into arrays of Lua function references to call for each hook type */
typedef std::map<int, cLuaRefs> cHookMap;
cCriticalSection m_CriticalSection;
cLuaState m_LuaState;
CommandMap m_Commands;
CommandMap m_ConsoleCommands;
cHookMap m_HookMap;
/** Releases all Lua references and closes the LuaState */
void Close(void);
} ; // tolua_export
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