365 lines
14 KiB
Java
365 lines
14 KiB
Java
package net.minecraft.world.entity.item;
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import com.mojang.logging.LogUtils;
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import java.util.function.Predicate;
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import net.minecraft.CrashReportCategory;
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import net.minecraft.core.BlockPos;
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import net.minecraft.core.Direction;
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import net.minecraft.core.RegistryAccess;
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import net.minecraft.nbt.CompoundTag;
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import net.minecraft.network.chat.Component;
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import net.minecraft.network.protocol.Packet;
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import net.minecraft.network.protocol.game.ClientGamePacketListener;
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import net.minecraft.network.protocol.game.ClientboundAddEntityPacket;
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import net.minecraft.network.protocol.game.ClientboundBlockUpdatePacket;
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import net.minecraft.network.syncher.EntityDataAccessor;
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import net.minecraft.network.syncher.EntityDataSerializers;
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import net.minecraft.network.syncher.SynchedEntityData;
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import net.minecraft.resources.ResourceKey;
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import net.minecraft.server.level.ServerEntity;
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import net.minecraft.server.level.ServerLevel;
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import net.minecraft.tags.BlockTags;
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import net.minecraft.tags.FluidTags;
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import net.minecraft.util.Mth;
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import net.minecraft.util.ProblemReporter;
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import net.minecraft.world.damagesource.DamageSource;
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import net.minecraft.world.entity.Entity;
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import net.minecraft.world.entity.EntitySelector;
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import net.minecraft.world.entity.EntityType;
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import net.minecraft.world.entity.MoverType;
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import net.minecraft.world.item.ItemStack;
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import net.minecraft.world.item.context.DirectionalPlaceContext;
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import net.minecraft.world.level.ClipContext;
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import net.minecraft.world.level.GameRules;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.level.block.AnvilBlock;
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import net.minecraft.world.level.block.Block;
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import net.minecraft.world.level.block.Blocks;
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import net.minecraft.world.level.block.ConcretePowderBlock;
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import net.minecraft.world.level.block.Fallable;
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import net.minecraft.world.level.block.FallingBlock;
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import net.minecraft.world.level.block.entity.BlockEntity;
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import net.minecraft.world.level.block.state.BlockState;
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import net.minecraft.world.level.block.state.properties.BlockStateProperties;
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import net.minecraft.world.level.material.Fluids;
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import net.minecraft.world.level.portal.TeleportTransition;
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import net.minecraft.world.level.storage.TagValueInput;
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import net.minecraft.world.level.storage.TagValueOutput;
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import net.minecraft.world.level.storage.ValueInput;
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import net.minecraft.world.level.storage.ValueOutput;
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import net.minecraft.world.phys.BlockHitResult;
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import net.minecraft.world.phys.HitResult;
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import net.minecraft.world.phys.Vec3;
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import org.jetbrains.annotations.Nullable;
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import org.slf4j.Logger;
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public class FallingBlockEntity extends Entity {
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private static final Logger LOGGER = LogUtils.getLogger();
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private static final BlockState DEFAULT_BLOCK_STATE = Blocks.SAND.defaultBlockState();
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private static final int DEFAULT_TIME = 0;
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private static final float DEFAULT_FALL_DAMAGE_PER_DISTANCE = 0.0F;
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private static final int DEFAULT_MAX_FALL_DAMAGE = 40;
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private static final boolean DEFAULT_DROP_ITEM = true;
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private static final boolean DEFAULT_CANCEL_DROP = false;
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private BlockState blockState = DEFAULT_BLOCK_STATE;
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public int time = 0;
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public boolean dropItem = true;
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private boolean cancelDrop = false;
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private boolean hurtEntities;
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private int fallDamageMax = 40;
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private float fallDamagePerDistance = 0.0F;
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@Nullable
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public CompoundTag blockData;
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public boolean forceTickAfterTeleportToDuplicate;
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protected static final EntityDataAccessor<BlockPos> DATA_START_POS = SynchedEntityData.defineId(FallingBlockEntity.class, EntityDataSerializers.BLOCK_POS);
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public FallingBlockEntity(EntityType<? extends FallingBlockEntity> entityType, Level level) {
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super(entityType, level);
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}
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private FallingBlockEntity(Level level, double x, double y, double z, BlockState state) {
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this(EntityType.FALLING_BLOCK, level);
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this.blockState = state;
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this.blocksBuilding = true;
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this.setPos(x, y, z);
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this.setDeltaMovement(Vec3.ZERO);
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this.xo = x;
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this.yo = y;
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this.zo = z;
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this.setStartPos(this.blockPosition());
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}
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public static FallingBlockEntity fall(Level level, BlockPos pos, BlockState blockState) {
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FallingBlockEntity fallingBlockEntity = new FallingBlockEntity(
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level,
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pos.getX() + 0.5,
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pos.getY(),
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pos.getZ() + 0.5,
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blockState.hasProperty(BlockStateProperties.WATERLOGGED) ? blockState.setValue(BlockStateProperties.WATERLOGGED, false) : blockState
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);
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level.setBlock(pos, blockState.getFluidState().createLegacyBlock(), 3);
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level.addFreshEntity(fallingBlockEntity);
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return fallingBlockEntity;
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}
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@Override
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public boolean isAttackable() {
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return false;
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}
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@Override
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public final boolean hurtServer(ServerLevel level, DamageSource damageSource, float amount) {
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if (!this.isInvulnerableToBase(damageSource)) {
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this.markHurt();
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}
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return false;
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}
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public void setStartPos(BlockPos startPos) {
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this.entityData.set(DATA_START_POS, startPos);
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}
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public BlockPos getStartPos() {
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return this.entityData.get(DATA_START_POS);
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}
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@Override
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protected Entity.MovementEmission getMovementEmission() {
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return Entity.MovementEmission.NONE;
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}
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@Override
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protected void defineSynchedData(SynchedEntityData.Builder builder) {
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builder.define(DATA_START_POS, BlockPos.ZERO);
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}
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@Override
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public boolean isPickable() {
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return !this.isRemoved();
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}
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@Override
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protected double getDefaultGravity() {
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return 0.04;
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}
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@Override
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public void tick() {
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if (this.blockState.isAir()) {
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this.discard();
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} else {
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Block block = this.blockState.getBlock();
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this.time++;
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this.applyGravity();
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this.move(MoverType.SELF, this.getDeltaMovement());
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this.applyEffectsFromBlocks();
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this.handlePortal();
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if (this.level() instanceof ServerLevel serverLevel && (this.isAlive() || this.forceTickAfterTeleportToDuplicate)) {
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BlockPos blockPos = this.blockPosition();
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boolean bl = this.blockState.getBlock() instanceof ConcretePowderBlock;
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boolean bl2 = bl && this.level().getFluidState(blockPos).is(FluidTags.WATER);
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double d = this.getDeltaMovement().lengthSqr();
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if (bl && d > 1.0) {
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BlockHitResult blockHitResult = this.level()
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.clip(new ClipContext(new Vec3(this.xo, this.yo, this.zo), this.position(), ClipContext.Block.COLLIDER, ClipContext.Fluid.SOURCE_ONLY, this));
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if (blockHitResult.getType() != HitResult.Type.MISS && this.level().getFluidState(blockHitResult.getBlockPos()).is(FluidTags.WATER)) {
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blockPos = blockHitResult.getBlockPos();
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bl2 = true;
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}
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}
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if (!this.onGround() && !bl2) {
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if (this.time > 100 && (blockPos.getY() <= this.level().getMinY() || blockPos.getY() > this.level().getMaxY()) || this.time > 600) {
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if (this.dropItem && serverLevel.getGameRules().getBoolean(GameRules.RULE_DOENTITYDROPS)) {
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this.spawnAtLocation(serverLevel, block);
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}
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this.discard();
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}
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} else {
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BlockState blockState = this.level().getBlockState(blockPos);
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this.setDeltaMovement(this.getDeltaMovement().multiply(0.7, -0.5, 0.7));
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if (!blockState.is(Blocks.MOVING_PISTON)) {
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if (!this.cancelDrop) {
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boolean bl3 = blockState.canBeReplaced(new DirectionalPlaceContext(this.level(), blockPos, Direction.DOWN, ItemStack.EMPTY, Direction.UP));
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boolean bl4 = FallingBlock.isFree(this.level().getBlockState(blockPos.below())) && (!bl || !bl2);
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boolean bl5 = this.blockState.canSurvive(this.level(), blockPos) && !bl4;
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if (bl3 && bl5) {
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if (this.blockState.hasProperty(BlockStateProperties.WATERLOGGED) && this.level().getFluidState(blockPos).getType() == Fluids.WATER) {
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this.blockState = this.blockState.setValue(BlockStateProperties.WATERLOGGED, true);
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}
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if (this.level().setBlock(blockPos, this.blockState, 3)) {
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((ServerLevel)this.level())
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.getChunkSource()
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.chunkMap
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.broadcast(this, new ClientboundBlockUpdatePacket(blockPos, this.level().getBlockState(blockPos)));
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this.discard();
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if (block instanceof Fallable) {
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((Fallable)block).onLand(this.level(), blockPos, this.blockState, blockState, this);
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}
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if (this.blockData != null && this.blockState.hasBlockEntity()) {
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BlockEntity blockEntity = this.level().getBlockEntity(blockPos);
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if (blockEntity != null) {
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try (ProblemReporter.ScopedCollector scopedCollector = new ProblemReporter.ScopedCollector(blockEntity.problemPath(), LOGGER)) {
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RegistryAccess registryAccess = this.level().registryAccess();
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TagValueOutput tagValueOutput = TagValueOutput.createWithContext(scopedCollector, registryAccess);
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blockEntity.saveWithoutMetadata(tagValueOutput);
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CompoundTag compoundTag = tagValueOutput.buildResult();
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this.blockData.forEach((string, tag) -> compoundTag.put(string, tag.copy()));
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blockEntity.loadWithComponents(TagValueInput.create(scopedCollector, registryAccess, compoundTag));
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} catch (Exception var19) {
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LOGGER.error("Failed to load block entity from falling block", (Throwable)var19);
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}
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blockEntity.setChanged();
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}
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}
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} else if (this.dropItem && serverLevel.getGameRules().getBoolean(GameRules.RULE_DOENTITYDROPS)) {
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this.discard();
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this.callOnBrokenAfterFall(block, blockPos);
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this.spawnAtLocation(serverLevel, block);
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}
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} else {
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this.discard();
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if (this.dropItem && serverLevel.getGameRules().getBoolean(GameRules.RULE_DOENTITYDROPS)) {
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this.callOnBrokenAfterFall(block, blockPos);
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this.spawnAtLocation(serverLevel, block);
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}
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}
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} else {
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this.discard();
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this.callOnBrokenAfterFall(block, blockPos);
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}
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}
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}
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}
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this.setDeltaMovement(this.getDeltaMovement().scale(0.98));
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}
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}
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public void callOnBrokenAfterFall(Block block, BlockPos pos) {
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if (block instanceof Fallable) {
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((Fallable)block).onBrokenAfterFall(this.level(), pos, this);
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}
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}
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@Override
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public boolean causeFallDamage(double fallDistance, float damageMultiplier, DamageSource damageSource) {
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if (!this.hurtEntities) {
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return false;
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} else {
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int i = Mth.ceil(fallDistance - 1.0);
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if (i < 0) {
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return false;
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} else {
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Predicate<Entity> predicate = EntitySelector.NO_CREATIVE_OR_SPECTATOR.and(EntitySelector.LIVING_ENTITY_STILL_ALIVE);
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DamageSource damageSource2 = this.blockState.getBlock() instanceof Fallable fallable
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? fallable.getFallDamageSource(this)
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: this.damageSources().fallingBlock(this);
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float f = Math.min(Mth.floor(i * this.fallDamagePerDistance), this.fallDamageMax);
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this.level().getEntities(this, this.getBoundingBox(), predicate).forEach(entity -> entity.hurt(damageSource2, f));
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boolean bl = this.blockState.is(BlockTags.ANVIL);
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if (bl && f > 0.0F && this.random.nextFloat() < 0.05F + i * 0.05F) {
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BlockState blockState = AnvilBlock.damage(this.blockState);
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if (blockState == null) {
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this.cancelDrop = true;
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} else {
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this.blockState = blockState;
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}
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}
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return false;
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}
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}
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}
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@Override
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protected void addAdditionalSaveData(ValueOutput output) {
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output.store("BlockState", BlockState.CODEC, this.blockState);
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output.putInt("Time", this.time);
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output.putBoolean("DropItem", this.dropItem);
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output.putBoolean("HurtEntities", this.hurtEntities);
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output.putFloat("FallHurtAmount", this.fallDamagePerDistance);
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output.putInt("FallHurtMax", this.fallDamageMax);
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if (this.blockData != null) {
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output.store("TileEntityData", CompoundTag.CODEC, this.blockData);
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}
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output.putBoolean("CancelDrop", this.cancelDrop);
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}
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@Override
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protected void readAdditionalSaveData(ValueInput input) {
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this.blockState = (BlockState)input.read("BlockState", BlockState.CODEC).orElse(DEFAULT_BLOCK_STATE);
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this.time = input.getIntOr("Time", 0);
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boolean bl = this.blockState.is(BlockTags.ANVIL);
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this.hurtEntities = input.getBooleanOr("HurtEntities", bl);
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this.fallDamagePerDistance = input.getFloatOr("FallHurtAmount", 0.0F);
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this.fallDamageMax = input.getIntOr("FallHurtMax", 40);
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this.dropItem = input.getBooleanOr("DropItem", true);
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this.blockData = (CompoundTag)input.read("TileEntityData", CompoundTag.CODEC).orElse(null);
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this.cancelDrop = input.getBooleanOr("CancelDrop", false);
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}
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public void setHurtsEntities(float fallDamagePerDistance, int fallDamageMax) {
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this.hurtEntities = true;
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this.fallDamagePerDistance = fallDamagePerDistance;
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this.fallDamageMax = fallDamageMax;
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}
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public void disableDrop() {
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this.cancelDrop = true;
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}
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@Override
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public boolean displayFireAnimation() {
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return false;
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}
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@Override
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public void fillCrashReportCategory(CrashReportCategory category) {
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super.fillCrashReportCategory(category);
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category.setDetail("Immitating BlockState", this.blockState.toString());
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}
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public BlockState getBlockState() {
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return this.blockState;
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}
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@Override
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protected Component getTypeName() {
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return Component.translatable("entity.minecraft.falling_block_type", this.blockState.getBlock().getName());
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}
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@Override
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public Packet<ClientGamePacketListener> getAddEntityPacket(ServerEntity entity) {
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return new ClientboundAddEntityPacket(this, entity, Block.getId(this.getBlockState()));
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}
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@Override
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public void recreateFromPacket(ClientboundAddEntityPacket packet) {
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super.recreateFromPacket(packet);
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this.blockState = Block.stateById(packet.getData());
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this.blocksBuilding = true;
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double d = packet.getX();
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double e = packet.getY();
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double f = packet.getZ();
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this.setPos(d, e, f);
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this.setStartPos(this.blockPosition());
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}
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@Nullable
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@Override
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public Entity teleport(TeleportTransition teleportTransition) {
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ResourceKey<Level> resourceKey = teleportTransition.newLevel().dimension();
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ResourceKey<Level> resourceKey2 = this.level().dimension();
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boolean bl = (resourceKey2 == Level.END || resourceKey == Level.END) && resourceKey2 != resourceKey;
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Entity entity = super.teleport(teleportTransition);
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this.forceTickAfterTeleportToDuplicate = entity != null && bl;
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return entity;
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}
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}
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