Light on a block

Plugins Plugin Development
1

Is there a way to get the light level on a block/location and is it possible to get the difference between the natural light and the artificial light?

2

SkyLuminescenceProperty and GroundLuminescenceProperty.

3

When I try, they are not present.

4

Possibly not implemented? pokes @gabizou

5

It’s not currently or a bug, I tried with @ryantheleach

1 Like
6

They appear to be implemented. Note that you need to get to get the property for a particular Location (not a BlockState).

7

I was doing this.

    @Listener
    public void onClick(InteractBlockEvent.Secondary event){
        Optional<GroundLuminanceProperty> ground = event.getTargetBlock().getProperty(GroundLuminanceProperty.class);
        Optional<SkyLuminanceProperty> sky = event.getTargetBlock().getProperty(SkyLuminanceProperty.class);

        for(Property property : event.getTargetBlock().getExtendedState().getApplicableProperties())
            System.out.println(property.getKey());
        System.out.println("-------------");

        if(ground.isPresent()){
            GroundLuminanceProperty property = ground.get();
            System.out.println(property.getValue());
        }

        if(sky.isPresent()){
            SkyLuminanceProperty property = sky.get();
            System.out.println(property.getValue());
        }
    }
8

Here’s an example:

    @Listener
    public void onInteract(InteractBlockEvent.Secondary event, @First Player player) {
        player.sendMessage(Text.of("Luminance: ", event.getTargetBlock().getLocation().get().getProperty(GroundLuminanceProperty.class).get().getValue()));
    }

Note that the Property is being retrieved from the Location, not the BlockSnapshot.

1 Like
9

Hmm perhaps the properties should be available on the BlockSnapshot too

10

Not with how MC works, light values are cached per location on the live world, they can’t be restored or stored since they’d be invalid on a BlockSnapshot.

11

wat?

Engrish gabi, engrish.

1 Like