Overrides

Note

Before talking about overrides. If you are looking for a way to show the "correct" name of a block, you probably actually need IWailaClientRegistration#usePickedResult

You can subscribe to WailaRayTraceEvent to replace the ray-trace result. New result can be created from IWailaClientRegistration in the IWailaPlugin#registerClient method.

Here is a small example that displays grass block as TNT block:

package mcp.mobius.waila.test;

import mcp.mobius.waila.api.Accessor;
import mcp.mobius.waila.api.BlockAccessor;
import mcp.mobius.waila.api.IWailaClientRegistration;
import mcp.mobius.waila.api.IWailaPlugin;
import mcp.mobius.waila.api.WailaPlugin;
import mcp.mobius.waila.api.event.WailaRayTraceEvent;
import net.minecraft.world.level.block.Blocks;
import net.minecraftforge.common.MinecraftForge;

@WailaPlugin
public class ExamplePlugin implements IWailaPlugin {

    private static IWailaClientRegistration client;

    public ExamplePlugin() {
        MinecraftForge.EVENT_BUS.addListener(this::overrideGrass);
    }

    public void overrideGrass(WailaRayTraceEvent event) {
        Accessor<?> accessor = event.getAccessor();
        if (accessor instanceof BlockAccessor blockAccessor) {
            if (blockAccessor.getBlock() == Blocks.GRASS_BLOCK) {
                accessor = client.createBlockAccessor(
                    Blocks.TNT.defaultBlockState(),
                    null,
                    accessor.getLevel(),
                    accessor.getPlayer(),
                    null,
                    blockAccessor.getHitResult(),
                    accessor.isServerConnected()
                );
                event.setAccessor(accessor);
            }
        }
    }

    @Override
    public void registerClient(IWailaClientRegistration registration) {
        ExamplePlugin.client = registration;
    }

}

Result: