cRoot

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Globals

Functions
Querying a furnace recipe

cRoot class

This class represents the root of Cuberite's object hierarchy. There is always only one cRoot object. It manages and allows querying all the other objects, such as cServer, cPluginManager, individual worlds etc.

To get the singleton instance of this object, you call the cRoot:Get() function. Then you can call the individual functions on this object. Note that some of the functions are static and don't need the instance, they are to be called directly on the cRoot class, such as cRoot:GetPhysicalRAMUsage()

Functions

Name

Parameters

Return value

Notes

BroadcastChat

MessageText	string
MessageType	eMessageType

Broadcasts a message to all players, with its message type set to MessageType (default: mtCustom).

BroadcastChat

CompositeChat

cCompositeChat

Broadcasts a composite chat message to all players.

BroadcastChatDeath

MessageText

string

Broadcasts the specified message to all players, with its message type set to mtDeath. Use for when a player has died.

BroadcastChatFailure

MessageText

string

Broadcasts the specified message to all players, with its message type set to mtFailure. Use for a command that failed to run because of insufficient permissions, etc.

BroadcastChatFatal

MessageText

string

Broadcasts the specified message to all players, with its message type set to mtFatal. Use for a plugin that crashed, or similar.

BroadcastChatInfo

MessageText

string

Broadcasts the specified message to all players, with its message type set to mtInfo. Use for informational messages, such as command usage.

BroadcastChatJoin

MessageText

string

Broadcasts the specified message to all players, with its message type set to mtJoin. Use for players joining the server.

BroadcastChatLeave

MessageText

string

Broadcasts the specified message to all players, with its message type set to mtLeave. Use for players leaving the server.

BroadcastChatSuccess

MessageText

string

Broadcasts the specified message to all players, with its message type set to mtSuccess. Use for success messages.

BroadcastChatWarning

MessageText

string

Broadcasts the specified message to all players, with its message type set to mtWarning. Use for concerning events, such as plugin reload etc.

BroadcastPlayerListsHeaderFooter

Header	cCompositeChat
Footer	cCompositeChat

(undocumented)

DoWithPlayerByUUID

PlayerUUID	cUUID
CallbackFunction	function

boolean

If there is the player with the uuid, calls the CallbackFunction with the cPlayer parameter representing the player. The CallbackFunction has the following signature:

function Callback(Player)

The function returns false if the player was not found, or whatever bool value the callback returned if the player was found.

FindAndDoWithPlayer

PlayerName	string
CallbackFunction	function

boolean

Calls the given callback function for the player with the name best matching the name string provided.
This function is case-insensitive and will match partial names.
Returns false if player not found or there is ambiguity, true otherwise. The CallbackFunction has the following signature:

function Callback(Player)

ForEachPlayer

CallbackFunction

function

boolean

Calls the given callback function for each player. The callback function has the following signature:

function Callback(cPlayer)

ForEachWorld

CallbackFunction

function

boolean

Calls the given callback function for each world. The callback function has the following signature:

function Callback(cWorld)

. Returns false if a callback aborts, otherwise true.

Get

cRoot

(STATIC) Returns the one and only cRoot object.

GetBrewingRecipe

Bottle	cItem
Ingredient	cItem

cItem

(STATIC) Returns the result item, if a recipe has been found to brew the Ingredient into Bottle. If no recipe is found, returns no value.

GetBuildCommitID

string

(STATIC) For official builds (Travis CI / Jenkins) it returns the exact commit hash used for the build. For unofficial local builds, returns the approximate commit hash (since the true one cannot be determined), formatted as "approx: <CommitHash>".

GetBuildDateTime

string

(STATIC) For official builds (Travic CI / Jenkins) it returns the date and time of the build. For unofficial local builds, returns the approximate datetime of the commit (since the true one cannot be determined), formatted as "approx: <DateTime-iso8601>".

GetBuildID

string

(STATIC) For official builds (Travis CI / Jenkins) it returns the unique ID of the build, as recognized by the build system. For unofficial local builds, returns the string "Unknown".

GetBuildSeriesName

string

(STATIC) For official builds (Travis CI / Jenkins) it returns the series name of the build (for example "Cuberite Windows x64 Master"). For unofficial local builds, returns the string "local build".

GetCraftingRecipes

cCraftingRecipe

Returns the CraftingRecipes object

GetDefaultWorld

cWorld

Returns the world object from the default world.

GetFurnaceFuelBurnTime

Fuel

cItem

number

(STATIC) Returns the number of ticks for how long the item would fuel a furnace. Returns zero if not a fuel.

GetFurnaceRecipe

InItem

cItem

OutItem	cItem
NumTicks	number
InItem	cItem

(STATIC) Returns the furnace recipe for smelting the specified input. If a recipe is found, returns the smelted result, the number of ticks required for the smelting operation, and the input consumed (note that Cuberite supports smelting M items into N items and different smelting rates). If no recipe is found, returns no value.

GetPhysicalRAMUsage

number

(STATIC) Returns the amount of physical RAM that the entire Cuberite process is using, in KiB. Negative if the OS doesn't support this query.

GetPluginManager

cPluginManager

Returns the cPluginManager object.

GetProtocolVersionTextFromInt

ProtocolVersionNumber

number

string

(STATIC) Returns the Minecraft client version from the given Protocol version number. If there is no version found, it returns 'Unknown protocol (Number)'

GetServer

cServer

Returns the cServer object.

GetServerUpTime

number

Returns the uptime of the server in seconds.

GetTotalChunkCount

number

Returns the amount of loaded chunks.

GetVirtualRAMUsage

number

(STATIC) Returns the amount of virtual RAM that the entire Cuberite process is using, in KiB. Negative if the OS doesn't support this query.

GetWebAdmin

cWebAdmin

Returns the cWebAdmin object.

GetWorld

WorldName

string

cWorld

Returns the cWorld object of the given world. It returns nil if there is no world with the given name.

QueueExecuteConsoleCommand

Message

string

Queues a console command for execution through the cServer class. The command will be executed in the tick thread. The command's output will be sent to console.

SaveAllChunks

Saves all the chunks in all the worlds. Note that the saving is queued on each world's tick thread and this functions returns before the chunks are actually saved.

SetSavingEnabled

SavingEnabled

boolean

Sets whether saving chunk data is enabled for all worlds. If disabled, dirty chunks will stay in memory forever, which can cause performance and stability issues.

Querying a furnace recipe

To find the furnace recipe for an item, use the following code (adapted from the Debuggers plugin's /fr command):

local HeldItem = a_Player:GetEquippedItem();
local Out, NumTicks, In = cRoot:GetFurnaceRecipe(HeldItem);  -- Note STATIC call - no need for a Get()
if (Out ~= nil) then
	-- There is a recipe, list it:
	a_Player:SendMessage(
		"Furnace turns " .. ItemToFullString(In) ..
		" to " .. ItemToFullString(Out) ..
		" in " .. NumTicks .. " ticks (" ..
		tostring(NumTicks / 20) .. " seconds)."
	);
else
	-- No recipe found
	a_Player:SendMessage("There is no furnace recipe that would smelt " .. ItemToString(HeldItem));
end

Contents

cRoot class

Functions

Querying a furnace recipe