Ghost block when cancel a piston event

Sponge Sponge Development
1

ChangeBlockEvent.Place will fire when piston is triggered. Cancel that event will generate a ghost block like video shown here. I was testing this on both vanilla and forge with MC version 1.10.2 and 1.11.2

I want know how to prevent it or how can I help for fix it.

2

You can listen and cancel ChangeBlockEvent.Pre so it’s cancelled before any specific block logic is called (which may be generating the ghost block).

Edit: Or if you’re not trying to cancel it at all, can you post your code and what you are trying to do?

1 Like
3

I will try this soon
But why when I listen to ChangeBlockEvent, there only Place and Post are fired?

4

There were some recent changes that tweak how the events work, use the latest version of whichever Sponge you’re on and try again - it should fire.

5

Produce ghost block by those code:
public void onChangeBlockEvent(ChangeBlockEvent.Place event) {
event.setCancelled(true);
}

Pre are work
Thanks for quickly help!

public void onChangeBlockEvent(ChangeBlockEvent event) {
System.out.println(event.toString());
}
Only get Place and Post

Version below are tested:
spongevanilla-1.10.2-5.1.0-BETA-370
spongevanilla-1.11.2-6.0.0-BETA-206

But when actually listen to Pre, it works.