FabricModLearning/src/main/java/com/learning/block/DamageBlock.java

package com.learning.block;

import java.util.List;

import net.minecraft.block.AbstractBlock;
import net.minecraft.block.Block;
import net.minecraft.block.BlockState;
import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.server.world.ServerWorld;
import net.minecraft.util.ActionResult;
import net.minecraft.util.hit.BlockHitResult;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraft.entity.Entity;
import net.minecraft.item.ItemStack;
import net.minecraft.item.Item.TooltipContext;
import net.minecraft.item.tooltip.TooltipType;
import net.minecraft.text.Text;

public class DamageBlock extends Block {
    public DamageBlock(AbstractBlock.Settings settings) {
        super(settings);
    }

    @Override
    public void onSteppedOn(World world, BlockPos pos, BlockState state, Entity entity) {
        if (!world.isClient() && entity.canHit()) {
            entity.damage((ServerWorld)world, world.getDamageSources().generic(), 6f);
        }
    }

    @Override
    public void appendTooltip(ItemStack stack, TooltipContext context, List<Text> tooltip, TooltipType type) {
        super.appendTooltip(stack, context, tooltip, type);
        tooltip.add(Text.translatable("toolTip.learning.damage_block"));
    }

    @Override
    protected ActionResult onUse(BlockState state, World world, BlockPos pos, PlayerEntity player, BlockHitResult hit) {
        player.sendMessage(Text.translatable("block.learning.damage_block.on_use"), false);
        return ActionResult.SUCCESS;
    }
}