commands.execAsync

Function commands.execAsync
Available only to Command Computers, orders the specified MineCraft command to be executed, but doesn't yield. A "task_complete" event will be queued once the command has actually been executed. You can use the taskID returned by this function to identify the "task_complete" event, should you wish to pull it. Compare commands.exec, which automatically yields until this event is thrown, then catches it and returns the results. This function allows huge amounts of commands to be requested in a very short time - much faster than Minecraft can actually perform them. Generating an excessive queue will cause your script to error out; to avoid problems, either perform periodic sleeps or measure incoming task_complete events (up to 256 events may exist within the event queue at a time; see os.pullEvent() for more info on the event system).
Syntax	commands.execAsync(string command)
Returns	number taskID
Part of	ComputerCraft
API	commands

Examples

Example
Says 'Hello' to the player, closest to the Command Computer.
Code	commands.execAsync( "say @p Hello" )

Example
Checks if there are any players around the Command Computer in 2 block radius.
Code	local radius = 2 local taskID = commands.execAsync( "testfor @a[r=" .. radius .. "]") local arePlayersAround repeat local event, id, success, executed, error = os.pullEvent( "task_complete" ) arePlayersAround = success and executed until id == taskID if arePlayersAround then print( "There is one or more players around me." ) else print( "There are no players around me." ) end

Commands API Functions
commands.exec - commands.execAsync - commands.list - commands.getBlockPosition - commands.getBlockInfo - commands.getBlockInfos