Code/net/minecraft/world/level/block/TntBlock.java

package net.minecraft.world.level.block;

import com.mojang.serialization.MapCodec;
import javax.annotation.Nullable;
import net.minecraft.core.BlockPos;
import net.minecraft.network.chat.Component;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.sounds.SoundEvents;
import net.minecraft.sounds.SoundSource;
import net.minecraft.stats.Stats;
import net.minecraft.world.InteractionHand;
import net.minecraft.world.InteractionResult;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.LivingEntity;
import net.minecraft.world.entity.item.PrimedTnt;
import net.minecraft.world.entity.player.Player;
import net.minecraft.world.entity.projectile.Projectile;
import net.minecraft.world.item.Item;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.item.Items;
import net.minecraft.world.level.Explosion;
import net.minecraft.world.level.GameRules;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.block.state.BlockBehaviour;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.block.state.StateDefinition;
import net.minecraft.world.level.block.state.properties.BlockStateProperties;
import net.minecraft.world.level.block.state.properties.BooleanProperty;
import net.minecraft.world.level.gameevent.GameEvent;
import net.minecraft.world.level.redstone.Orientation;
import net.minecraft.world.phys.BlockHitResult;

public class TntBlock extends Block {
    public static final MapCodec<TntBlock> CODEC = simpleCodec(TntBlock::new);
    public static final BooleanProperty UNSTABLE = BlockStateProperties.UNSTABLE;

    @Override
    public MapCodec<TntBlock> codec() {
        return CODEC;
    }

    public TntBlock(BlockBehaviour.Properties p_57422_) {
        super(p_57422_);
        this.registerDefaultState(this.defaultBlockState().setValue(UNSTABLE, false));
    }

    @Override
    protected void onPlace(BlockState p_57466_, Level p_57467_, BlockPos p_57468_, BlockState p_57469_, boolean p_57470_) {
        if (!p_57469_.is(p_57466_.getBlock())) {
            if (p_57467_.hasNeighborSignal(p_57468_) && prime(p_57467_, p_57468_)) {
                p_57467_.removeBlock(p_57468_, false);
            }
        }
    }

    @Override
    protected void neighborChanged(BlockState p_57457_, Level p_57458_, BlockPos p_57459_, Block p_57460_, @Nullable Orientation p_362896_, boolean p_57462_) {
        if (p_57458_.hasNeighborSignal(p_57459_) && prime(p_57458_, p_57459_)) {
            p_57458_.removeBlock(p_57459_, false);
        }
    }

    @Override
    public BlockState playerWillDestroy(Level p_57445_, BlockPos p_57446_, BlockState p_57447_, Player p_57448_) {
        if (!p_57445_.isClientSide() && !p_57448_.getAbilities().instabuild && p_57447_.getValue(UNSTABLE)) {
            prime(p_57445_, p_57446_);
        }

        return super.playerWillDestroy(p_57445_, p_57446_, p_57447_, p_57448_);
    }

    @Override
    public void wasExploded(ServerLevel p_368198_, BlockPos p_57442_, Explosion p_57443_) {
        if (p_368198_.getGameRules().getBoolean(GameRules.RULE_TNT_EXPLODES)) {
            PrimedTnt primedtnt = new PrimedTnt(p_368198_, p_57442_.getX() + 0.5, p_57442_.getY(), p_57442_.getZ() + 0.5, p_57443_.getIndirectSourceEntity());
            int i = primedtnt.getFuse();
            primedtnt.setFuse((short)(p_368198_.random.nextInt(i / 4) + i / 8));
            p_368198_.addFreshEntity(primedtnt);
        }
    }

    public static boolean prime(Level p_392759_, BlockPos p_392607_) {
        return prime(p_392759_, p_392607_, null);
    }

    private static boolean prime(Level p_396831_, BlockPos p_393566_, @Nullable LivingEntity p_395667_) {
        if (p_396831_ instanceof ServerLevel serverlevel && serverlevel.getGameRules().getBoolean(GameRules.RULE_TNT_EXPLODES)) {
            PrimedTnt primedtnt = new PrimedTnt(p_396831_, p_393566_.getX() + 0.5, p_393566_.getY(), p_393566_.getZ() + 0.5, p_395667_);
            p_396831_.addFreshEntity(primedtnt);
            p_396831_.playSound(null, primedtnt.getX(), primedtnt.getY(), primedtnt.getZ(), SoundEvents.TNT_PRIMED, SoundSource.BLOCKS, 1.0F, 1.0F);
            p_396831_.gameEvent(p_395667_, GameEvent.PRIME_FUSE, p_393566_);
            return true;
        } else {
            return false;
        }
    }

    @Override
    protected InteractionResult useItemOn(
        ItemStack p_329029_, BlockState p_331413_, Level p_329038_, BlockPos p_333168_, Player p_335932_, InteractionHand p_331663_, BlockHitResult p_330020_
    ) {
        if (!p_329029_.is(Items.FLINT_AND_STEEL) && !p_329029_.is(Items.FIRE_CHARGE)) {
            return super.useItemOn(p_329029_, p_331413_, p_329038_, p_333168_, p_335932_, p_331663_, p_330020_);
        } else {
            if (prime(p_329038_, p_333168_, p_335932_)) {
                p_329038_.setBlock(p_333168_, Blocks.AIR.defaultBlockState(), 11);
                Item item = p_329029_.getItem();
                if (p_329029_.is(Items.FLINT_AND_STEEL)) {
                    p_329029_.hurtAndBreak(1, p_335932_, LivingEntity.getSlotForHand(p_331663_));
                } else {
                    p_329029_.consume(1, p_335932_);
                }

                p_335932_.awardStat(Stats.ITEM_USED.get(item));
            } else if (p_329038_ instanceof ServerLevel serverlevel && !serverlevel.getGameRules().getBoolean(GameRules.RULE_TNT_EXPLODES)) {
                p_335932_.displayClientMessage(Component.translatable("block.minecraft.tnt.disabled"), true);
                return InteractionResult.PASS;
            }

            return InteractionResult.SUCCESS;
        }
    }

    @Override
    protected void onProjectileHit(Level p_57429_, BlockState p_57430_, BlockHitResult p_57431_, Projectile p_57432_) {
        if (p_57429_ instanceof ServerLevel serverlevel) {
            BlockPos blockpos = p_57431_.getBlockPos();
            Entity entity = p_57432_.getOwner();
            if (p_57432_.isOnFire()
                && p_57432_.mayInteract(serverlevel, blockpos)
                && prime(p_57429_, blockpos, entity instanceof LivingEntity ? (LivingEntity)entity : null)) {
                p_57429_.removeBlock(blockpos, false);
            }
        }
    }

    @Override
    public boolean dropFromExplosion(Explosion p_57427_) {
        return false;
    }

    @Override
    protected void createBlockStateDefinition(StateDefinition.Builder<Block, BlockState> p_57464_) {
        p_57464_.add(UNSTABLE);
    }
}