How to get player who activated command block

Player presses a button which activates a command block that sends a command; command is found by plugin by onCommand override. The CommandSender is an instance of BlockCommandSender.

Is it possible to deduce who pushed the button?

 

Zhro

Uh you could have the command be /yourcommand @p. That should pass in the command and the nearest player. Haven't tested that. May not work

 

The nearest player is not always the one who activated the block.

 

It's not worth your time to try. But, should you want to, you'll have to keep track of all button presses, lever presses, pressure plate presses, tripwire presses (what if I throw an item on a tripwire?, so item drops...), and tons of other stuff. You'll also have to trace the redstone from the command block to whatever got pressed and try to decude, which is pretty much impossible when you take lag into account, who pressed whatever it is that was triggered.

 

You can make a scoreboard objective that tracks buttonpress on players and make the commandblock use "/command @p[score_buttonpress_min=1]".
Remember to make another commandblock set the score back to 0 after the command was runned.