How to break blocks in adventure gamemode with empty hand (video of what I want is attached)

Hello. I want to understand how this works:



I just hold down the left mouse button and the grass breaks (in middle of the video I clicks lmb few times instead of hold).

I was trying to do something like sending blockchange packets in PlayerInteractEvent, but in adventure gamemode this event is not called. I thought maybe it's implements with PlayerAnimationEvent and Player#getTargetBlock(), but in adventure gamemode this event is called only one time - when I click a lmb (on the video i hold lmb).

I hope someone can help with how to implement this.

Minecraft version: 1.12.2

 

If PlayerInteractEvent.getAction == LEFT_CLICK_BLOCK then break the block.

 

@Kars "I was trying to do something like sending blockchange packets in PlayerInteractEvent, but in adventure gamemode this event is not called" - I write this in first post

 

So have players in survival mode and cancel every other interaction.

 

But on the server in attached video all players in adventure gamemode. So I need to know exactly how to do this in adventure mode.

 

How do you know they're in adventure mode?
Either way, to do this you somehow need to capture left clicks and without the event that might not be possible. I could be wrong.

 

Just because I know)

Hm... Okay. Then I will try to ask the developer of this feature about the implementation when he joins to the server

UPD: Well, I asked the developer of this feature, and he said that he did it using packets, but also said that you can't do this without your own client (yeah, the server from the video has its own client).

 

So i was right.
You can still achieve this feature my mimicing adventure mode in survival mode simply by cancelling every interaction.

 

Yes, but you can still touch blocks and even break (but it breaks for a moment and then recovers (as if I canceled BreakBlockEvent)) so it doesn't look very nice

 

@Darkmun it's that or a client modification.