minecraft-src/net/minecraft/world/entity/animal/Panda.java

package net.minecraft.world.entity.animal;

import com.mojang.serialization.Codec;
import java.util.EnumSet;
import java.util.List;
import java.util.function.IntFunction;
import net.minecraft.core.BlockPos;
import net.minecraft.core.particles.ItemParticleOption;
import net.minecraft.core.particles.ParticleTypes;
import net.minecraft.network.syncher.EntityDataAccessor;
import net.minecraft.network.syncher.EntityDataSerializers;
import net.minecraft.network.syncher.SynchedEntityData;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.sounds.SoundEvent;
import net.minecraft.sounds.SoundEvents;
import net.minecraft.tags.DamageTypeTags;
import net.minecraft.tags.ItemTags;
import net.minecraft.util.ByIdMap;
import net.minecraft.util.Mth;
import net.minecraft.util.RandomSource;
import net.minecraft.util.StringRepresentable;
import net.minecraft.world.DifficultyInstance;
import net.minecraft.world.InteractionHand;
import net.minecraft.world.InteractionResult;
import net.minecraft.world.damagesource.DamageSource;
import net.minecraft.world.entity.AgeableMob;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.EntityAttachment;
import net.minecraft.world.entity.EntityAttachments;
import net.minecraft.world.entity.EntityDimensions;
import net.minecraft.world.entity.EntitySelector;
import net.minecraft.world.entity.EntitySpawnReason;
import net.minecraft.world.entity.EntityType;
import net.minecraft.world.entity.EquipmentSlot;
import net.minecraft.world.entity.LivingEntity;
import net.minecraft.world.entity.Mob;
import net.minecraft.world.entity.Pose;
import net.minecraft.world.entity.SpawnGroupData;
import net.minecraft.world.entity.ai.attributes.AttributeSupplier;
import net.minecraft.world.entity.ai.attributes.Attributes;
import net.minecraft.world.entity.ai.control.MoveControl;
import net.minecraft.world.entity.ai.goal.AvoidEntityGoal;
import net.minecraft.world.entity.ai.goal.BreedGoal;
import net.minecraft.world.entity.ai.goal.FloatGoal;
import net.minecraft.world.entity.ai.goal.FollowParentGoal;
import net.minecraft.world.entity.ai.goal.Goal;
import net.minecraft.world.entity.ai.goal.LookAtPlayerGoal;
import net.minecraft.world.entity.ai.goal.MeleeAttackGoal;
import net.minecraft.world.entity.ai.goal.PanicGoal;
import net.minecraft.world.entity.ai.goal.RandomLookAroundGoal;
import net.minecraft.world.entity.ai.goal.TemptGoal;
import net.minecraft.world.entity.ai.goal.WaterAvoidingRandomStrollGoal;
import net.minecraft.world.entity.ai.goal.target.HurtByTargetGoal;
import net.minecraft.world.entity.ai.targeting.TargetingConditions;
import net.minecraft.world.entity.item.ItemEntity;
import net.minecraft.world.entity.monster.Monster;
import net.minecraft.world.entity.player.Player;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.level.GameRules;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.ServerLevelAccessor;
import net.minecraft.world.level.block.Blocks;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.gameevent.GameEvent;
import net.minecraft.world.level.storage.ValueInput;
import net.minecraft.world.level.storage.ValueOutput;
import net.minecraft.world.level.storage.loot.BuiltInLootTables;
import net.minecraft.world.phys.Vec3;
import org.jetbrains.annotations.Nullable;

public class Panda extends Animal {
	private static final EntityDataAccessor<Integer> UNHAPPY_COUNTER = SynchedEntityData.defineId(Panda.class, EntityDataSerializers.INT);
	private static final EntityDataAccessor<Integer> SNEEZE_COUNTER = SynchedEntityData.defineId(Panda.class, EntityDataSerializers.INT);
	private static final EntityDataAccessor<Integer> EAT_COUNTER = SynchedEntityData.defineId(Panda.class, EntityDataSerializers.INT);
	private static final EntityDataAccessor<Byte> MAIN_GENE_ID = SynchedEntityData.defineId(Panda.class, EntityDataSerializers.BYTE);
	private static final EntityDataAccessor<Byte> HIDDEN_GENE_ID = SynchedEntityData.defineId(Panda.class, EntityDataSerializers.BYTE);
	private static final EntityDataAccessor<Byte> DATA_ID_FLAGS = SynchedEntityData.defineId(Panda.class, EntityDataSerializers.BYTE);
	static final TargetingConditions BREED_TARGETING = TargetingConditions.forNonCombat().range(8.0);
	private static final EntityDimensions BABY_DIMENSIONS = EntityType.PANDA
		.getDimensions()
		.scale(0.5F)
		.withAttachments(EntityAttachments.builder().attach(EntityAttachment.PASSENGER, 0.0F, 0.40625F, 0.0F));
	private static final int FLAG_SNEEZE = 2;
	private static final int FLAG_ROLL = 4;
	private static final int FLAG_SIT = 8;
	private static final int FLAG_ON_BACK = 16;
	private static final int EAT_TICK_INTERVAL = 5;
	public static final int TOTAL_ROLL_STEPS = 32;
	private static final int TOTAL_UNHAPPY_TIME = 32;
	boolean gotBamboo;
	boolean didBite;
	public int rollCounter;
	private Vec3 rollDelta;
	private float sitAmount;
	private float sitAmountO;
	private float onBackAmount;
	private float onBackAmountO;
	private float rollAmount;
	private float rollAmountO;
	Panda.PandaLookAtPlayerGoal lookAtPlayerGoal;

	public Panda(EntityType<? extends Panda> entityType, Level level) {
		super(entityType, level);
		this.moveControl = new Panda.PandaMoveControl(this);
		if (!this.isBaby()) {
			this.setCanPickUpLoot(true);
		}
	}

	@Override
	protected boolean canDispenserEquipIntoSlot(EquipmentSlot slot) {
		return slot == EquipmentSlot.MAINHAND && this.canPickUpLoot();
	}

	public int getUnhappyCounter() {
		return this.entityData.get(UNHAPPY_COUNTER);
	}

	public void setUnhappyCounter(int unhappyCounter) {
		this.entityData.set(UNHAPPY_COUNTER, unhappyCounter);
	}

	public boolean isSneezing() {
		return this.getFlag(2);
	}

	public boolean isSitting() {
		return this.getFlag(8);
	}

	public void sit(boolean sitting) {
		this.setFlag(8, sitting);
	}

	public boolean isOnBack() {
		return this.getFlag(16);
	}

	public void setOnBack(boolean onBack) {
		this.setFlag(16, onBack);
	}

	public boolean isEating() {
		return this.entityData.get(EAT_COUNTER) > 0;
	}

	public void eat(boolean eating) {
		this.entityData.set(EAT_COUNTER, eating ? 1 : 0);
	}

	private int getEatCounter() {
		return this.entityData.get(EAT_COUNTER);
	}

	private void setEatCounter(int eatCounter) {
		this.entityData.set(EAT_COUNTER, eatCounter);
	}

	public void sneeze(boolean sneezing) {
		this.setFlag(2, sneezing);
		if (!sneezing) {
			this.setSneezeCounter(0);
		}
	}

	public int getSneezeCounter() {
		return this.entityData.get(SNEEZE_COUNTER);
	}

	public void setSneezeCounter(int sneezeCounter) {
		this.entityData.set(SNEEZE_COUNTER, sneezeCounter);
	}

	public Panda.Gene getMainGene() {
		return Panda.Gene.byId(this.entityData.get(MAIN_GENE_ID));
	}

	public void setMainGene(Panda.Gene pandaType) {
		if (pandaType.getId() > 6) {
			pandaType = Panda.Gene.getRandom(this.random);
		}

		this.entityData.set(MAIN_GENE_ID, (byte)pandaType.getId());
	}

	public Panda.Gene getHiddenGene() {
		return Panda.Gene.byId(this.entityData.get(HIDDEN_GENE_ID));
	}

	public void setHiddenGene(Panda.Gene pandaType) {
		if (pandaType.getId() > 6) {
			pandaType = Panda.Gene.getRandom(this.random);
		}

		this.entityData.set(HIDDEN_GENE_ID, (byte)pandaType.getId());
	}

	public boolean isRolling() {
		return this.getFlag(4);
	}

	public void roll(boolean rolling) {
		this.setFlag(4, rolling);
	}

	@Override
	protected void defineSynchedData(SynchedEntityData.Builder builder) {
		super.defineSynchedData(builder);
		builder.define(UNHAPPY_COUNTER, 0);
		builder.define(SNEEZE_COUNTER, 0);
		builder.define(MAIN_GENE_ID, (byte)0);
		builder.define(HIDDEN_GENE_ID, (byte)0);
		builder.define(DATA_ID_FLAGS, (byte)0);
		builder.define(EAT_COUNTER, 0);
	}

	private boolean getFlag(int flag) {
		return (this.entityData.get(DATA_ID_FLAGS) & flag) != 0;
	}

	private void setFlag(int flagId, boolean value) {
		byte b = this.entityData.get(DATA_ID_FLAGS);
		if (value) {
			this.entityData.set(DATA_ID_FLAGS, (byte)(b | flagId));
		} else {
			this.entityData.set(DATA_ID_FLAGS, (byte)(b & ~flagId));
		}
	}

	@Override
	protected void addAdditionalSaveData(ValueOutput output) {
		super.addAdditionalSaveData(output);
		output.store("MainGene", Panda.Gene.CODEC, this.getMainGene());
		output.store("HiddenGene", Panda.Gene.CODEC, this.getHiddenGene());
	}

	@Override
	protected void readAdditionalSaveData(ValueInput input) {
		super.readAdditionalSaveData(input);
		this.setMainGene((Panda.Gene)input.read("MainGene", Panda.Gene.CODEC).orElse(Panda.Gene.NORMAL));
		this.setHiddenGene((Panda.Gene)input.read("HiddenGene", Panda.Gene.CODEC).orElse(Panda.Gene.NORMAL));
	}

	@Nullable
	@Override
	public AgeableMob getBreedOffspring(ServerLevel level, AgeableMob otherParent) {
		Panda panda = EntityType.PANDA.create(level, EntitySpawnReason.BREEDING);
		if (panda != null) {
			if (otherParent instanceof Panda panda2) {
				panda.setGeneFromParents(this, panda2);
			}

			panda.setAttributes();
		}

		return panda;
	}

	@Override
	protected void registerGoals() {
		this.goalSelector.addGoal(0, new FloatGoal(this));
		this.goalSelector.addGoal(2, new Panda.PandaPanicGoal(this, 2.0));
		this.goalSelector.addGoal(2, new Panda.PandaBreedGoal(this, 1.0));
		this.goalSelector.addGoal(3, new Panda.PandaAttackGoal(this, 1.2F, true));
		this.goalSelector.addGoal(4, new TemptGoal(this, 1.0, itemStack -> itemStack.is(ItemTags.PANDA_FOOD), false));
		this.goalSelector.addGoal(6, new Panda.PandaAvoidGoal(this, Player.class, 8.0F, 2.0, 2.0));
		this.goalSelector.addGoal(6, new Panda.PandaAvoidGoal(this, Monster.class, 4.0F, 2.0, 2.0));
		this.goalSelector.addGoal(7, new Panda.PandaSitGoal());
		this.goalSelector.addGoal(8, new Panda.PandaLieOnBackGoal(this));
		this.goalSelector.addGoal(8, new Panda.PandaSneezeGoal(this));
		this.lookAtPlayerGoal = new Panda.PandaLookAtPlayerGoal(this, Player.class, 6.0F);
		this.goalSelector.addGoal(9, this.lookAtPlayerGoal);
		this.goalSelector.addGoal(10, new RandomLookAroundGoal(this));
		this.goalSelector.addGoal(12, new Panda.PandaRollGoal(this));
		this.goalSelector.addGoal(13, new FollowParentGoal(this, 1.25));
		this.goalSelector.addGoal(14, new WaterAvoidingRandomStrollGoal(this, 1.0));
		this.targetSelector.addGoal(1, new Panda.PandaHurtByTargetGoal(this).setAlertOthers(new Class[0]));
	}

	public static AttributeSupplier.Builder createAttributes() {
		return Animal.createAnimalAttributes().add(Attributes.MOVEMENT_SPEED, 0.15F).add(Attributes.ATTACK_DAMAGE, 6.0);
	}

	public Panda.Gene getVariant() {
		return Panda.Gene.getVariantFromGenes(this.getMainGene(), this.getHiddenGene());
	}

	public boolean isLazy() {
		return this.getVariant() == Panda.Gene.LAZY;
	}

	public boolean isWorried() {
		return this.getVariant() == Panda.Gene.WORRIED;
	}

	public boolean isPlayful() {
		return this.getVariant() == Panda.Gene.PLAYFUL;
	}

	public boolean isBrown() {
		return this.getVariant() == Panda.Gene.BROWN;
	}

	public boolean isWeak() {
		return this.getVariant() == Panda.Gene.WEAK;
	}

	@Override
	public boolean isAggressive() {
		return this.getVariant() == Panda.Gene.AGGRESSIVE;
	}

	@Override
	public boolean canBeLeashed() {
		return false;
	}

	@Override
	public boolean doHurtTarget(ServerLevel level, Entity source) {
		if (!this.isAggressive()) {
			this.didBite = true;
		}

		return super.doHurtTarget(level, source);
	}

	@Override
	public void playAttackSound() {
		this.playSound(SoundEvents.PANDA_BITE, 1.0F, 1.0F);
	}

	@Override
	public void tick() {
		super.tick();
		if (this.isWorried()) {
			if (this.level().isThundering() && !this.isInWater()) {
				this.sit(true);
				this.eat(false);
			} else if (!this.isEating()) {
				this.sit(false);
			}
		}

		LivingEntity livingEntity = this.getTarget();
		if (livingEntity == null) {
			this.gotBamboo = false;
			this.didBite = false;
		}

		if (this.getUnhappyCounter() > 0) {
			if (livingEntity != null) {
				this.lookAt(livingEntity, 90.0F, 90.0F);
			}

			if (this.getUnhappyCounter() == 29 || this.getUnhappyCounter() == 14) {
				this.playSound(SoundEvents.PANDA_CANT_BREED, 1.0F, 1.0F);
			}

			this.setUnhappyCounter(this.getUnhappyCounter() - 1);
		}

		if (this.isSneezing()) {
			this.setSneezeCounter(this.getSneezeCounter() + 1);
			if (this.getSneezeCounter() > 20) {
				this.sneeze(false);
				this.afterSneeze();
			} else if (this.getSneezeCounter() == 1) {
				this.playSound(SoundEvents.PANDA_PRE_SNEEZE, 1.0F, 1.0F);
			}
		}

		if (this.isRolling()) {
			this.handleRoll();
		} else {
			this.rollCounter = 0;
		}

		if (this.isSitting()) {
			this.setXRot(0.0F);
		}

		this.updateSitAmount();
		this.handleEating();
		this.updateOnBackAnimation();
		this.updateRollAmount();
	}

	public boolean isScared() {
		return this.isWorried() && this.level().isThundering();
	}

	private void handleEating() {
		if (!this.isEating() && this.isSitting() && !this.isScared() && !this.getItemBySlot(EquipmentSlot.MAINHAND).isEmpty() && this.random.nextInt(80) == 1) {
			this.eat(true);
		} else if (this.getItemBySlot(EquipmentSlot.MAINHAND).isEmpty() || !this.isSitting()) {
			this.eat(false);
		}

		if (this.isEating()) {
			this.addEatingParticles();
			if (!this.level().isClientSide && this.getEatCounter() > 80 && this.random.nextInt(20) == 1) {
				if (this.getEatCounter() > 100 && this.getItemBySlot(EquipmentSlot.MAINHAND).is(ItemTags.PANDA_EATS_FROM_GROUND)) {
					if (!this.level().isClientSide) {
						this.setItemSlot(EquipmentSlot.MAINHAND, ItemStack.EMPTY);
						this.gameEvent(GameEvent.EAT);
					}

					this.sit(false);
				}

				this.eat(false);
				return;
			}

			this.setEatCounter(this.getEatCounter() + 1);
		}
	}

	private void addEatingParticles() {
		if (this.getEatCounter() % 5 == 0) {
			this.playSound(SoundEvents.PANDA_EAT, 0.5F + 0.5F * this.random.nextInt(2), (this.random.nextFloat() - this.random.nextFloat()) * 0.2F + 1.0F);

			for (int i = 0; i < 6; i++) {
				Vec3 vec3 = new Vec3((this.random.nextFloat() - 0.5) * 0.1, Math.random() * 0.1 + 0.1, (this.random.nextFloat() - 0.5) * 0.1);
				vec3 = vec3.xRot(-this.getXRot() * (float) (Math.PI / 180.0));
				vec3 = vec3.yRot(-this.getYRot() * (float) (Math.PI / 180.0));
				double d = -this.random.nextFloat() * 0.6 - 0.3;
				Vec3 vec32 = new Vec3((this.random.nextFloat() - 0.5) * 0.8, d, 1.0 + (this.random.nextFloat() - 0.5) * 0.4);
				vec32 = vec32.yRot(-this.yBodyRot * (float) (Math.PI / 180.0));
				vec32 = vec32.add(this.getX(), this.getEyeY() + 1.0, this.getZ());
				this.level()
					.addParticle(
						new ItemParticleOption(ParticleTypes.ITEM, this.getItemBySlot(EquipmentSlot.MAINHAND)), vec32.x, vec32.y, vec32.z, vec3.x, vec3.y + 0.05, vec3.z
					);
			}
		}
	}

	private void updateSitAmount() {
		this.sitAmountO = this.sitAmount;
		if (this.isSitting()) {
			this.sitAmount = Math.min(1.0F, this.sitAmount + 0.15F);
		} else {
			this.sitAmount = Math.max(0.0F, this.sitAmount - 0.19F);
		}
	}

	private void updateOnBackAnimation() {
		this.onBackAmountO = this.onBackAmount;
		if (this.isOnBack()) {
			this.onBackAmount = Math.min(1.0F, this.onBackAmount + 0.15F);
		} else {
			this.onBackAmount = Math.max(0.0F, this.onBackAmount - 0.19F);
		}
	}

	private void updateRollAmount() {
		this.rollAmountO = this.rollAmount;
		if (this.isRolling()) {
			this.rollAmount = Math.min(1.0F, this.rollAmount + 0.15F);
		} else {
			this.rollAmount = Math.max(0.0F, this.rollAmount - 0.19F);
		}
	}

	public float getSitAmount(float partialTick) {
		return Mth.lerp(partialTick, this.sitAmountO, this.sitAmount);
	}

	public float getLieOnBackAmount(float partialTick) {
		return Mth.lerp(partialTick, this.onBackAmountO, this.onBackAmount);
	}

	public float getRollAmount(float partialTick) {
		return Mth.lerp(partialTick, this.rollAmountO, this.rollAmount);
	}

	private void handleRoll() {
		this.rollCounter++;
		if (this.rollCounter > 32) {
			this.roll(false);
		} else {
			if (!this.level().isClientSide) {
				Vec3 vec3 = this.getDeltaMovement();
				if (this.rollCounter == 1) {
					float f = this.getYRot() * (float) (Math.PI / 180.0);
					float g = this.isBaby() ? 0.1F : 0.2F;
					this.rollDelta = new Vec3(vec3.x + -Mth.sin(f) * g, 0.0, vec3.z + Mth.cos(f) * g);
					this.setDeltaMovement(this.rollDelta.add(0.0, 0.27, 0.0));
				} else if (this.rollCounter != 7.0F && this.rollCounter != 15.0F && this.rollCounter != 23.0F) {
					this.setDeltaMovement(this.rollDelta.x, vec3.y, this.rollDelta.z);
				} else {
					this.setDeltaMovement(0.0, this.onGround() ? 0.27 : vec3.y, 0.0);
				}
			}
		}
	}

	private void afterSneeze() {
		Vec3 vec3 = this.getDeltaMovement();
		Level level = this.level();
		level.addParticle(
			ParticleTypes.SNEEZE,
			this.getX() - (this.getBbWidth() + 1.0F) * 0.5 * Mth.sin(this.yBodyRot * (float) (Math.PI / 180.0)),
			this.getEyeY() - 0.1F,
			this.getZ() + (this.getBbWidth() + 1.0F) * 0.5 * Mth.cos(this.yBodyRot * (float) (Math.PI / 180.0)),
			vec3.x,
			0.0,
			vec3.z
		);
		this.playSound(SoundEvents.PANDA_SNEEZE, 1.0F, 1.0F);

		for (Panda panda : level.getEntitiesOfClass(Panda.class, this.getBoundingBox().inflate(10.0))) {
			if (!panda.isBaby() && panda.onGround() && !panda.isInWater() && panda.canPerformAction()) {
				panda.jumpFromGround();
			}
		}

		if (this.level() instanceof ServerLevel serverLevel && serverLevel.getGameRules().getBoolean(GameRules.RULE_DOMOBLOOT)) {
			this.dropFromGiftLootTable(serverLevel, BuiltInLootTables.PANDA_SNEEZE, this::spawnAtLocation);
		}
	}

	@Override
	protected void pickUpItem(ServerLevel level, ItemEntity entity) {
		if (this.getItemBySlot(EquipmentSlot.MAINHAND).isEmpty() && canPickUpAndEat(entity)) {
			this.onItemPickup(entity);
			ItemStack itemStack = entity.getItem();
			this.setItemSlot(EquipmentSlot.MAINHAND, itemStack);
			this.setGuaranteedDrop(EquipmentSlot.MAINHAND);
			this.take(entity, itemStack.getCount());
			entity.discard();
		}
	}

	@Override
	public boolean hurtServer(ServerLevel level, DamageSource damageSource, float amount) {
		this.sit(false);
		return super.hurtServer(level, damageSource, amount);
	}

	@Nullable
	@Override
	public SpawnGroupData finalizeSpawn(
		ServerLevelAccessor level, DifficultyInstance difficulty, EntitySpawnReason spawnReason, @Nullable SpawnGroupData spawnGroupData
	) {
		RandomSource randomSource = level.getRandom();
		this.setMainGene(Panda.Gene.getRandom(randomSource));
		this.setHiddenGene(Panda.Gene.getRandom(randomSource));
		this.setAttributes();
		if (spawnGroupData == null) {
			spawnGroupData = new AgeableMob.AgeableMobGroupData(0.2F);
		}

		return super.finalizeSpawn(level, difficulty, spawnReason, spawnGroupData);
	}

	public void setGeneFromParents(Panda father, @Nullable Panda mother) {
		if (mother == null) {
			if (this.random.nextBoolean()) {
				this.setMainGene(father.getOneOfGenesRandomly());
				this.setHiddenGene(Panda.Gene.getRandom(this.random));
			} else {
				this.setMainGene(Panda.Gene.getRandom(this.random));
				this.setHiddenGene(father.getOneOfGenesRandomly());
			}
		} else if (this.random.nextBoolean()) {
			this.setMainGene(father.getOneOfGenesRandomly());
			this.setHiddenGene(mother.getOneOfGenesRandomly());
		} else {
			this.setMainGene(mother.getOneOfGenesRandomly());
			this.setHiddenGene(father.getOneOfGenesRandomly());
		}

		if (this.random.nextInt(32) == 0) {
			this.setMainGene(Panda.Gene.getRandom(this.random));
		}

		if (this.random.nextInt(32) == 0) {
			this.setHiddenGene(Panda.Gene.getRandom(this.random));
		}
	}

	private Panda.Gene getOneOfGenesRandomly() {
		return this.random.nextBoolean() ? this.getMainGene() : this.getHiddenGene();
	}

	public void setAttributes() {
		if (this.isWeak()) {
			this.getAttribute(Attributes.MAX_HEALTH).setBaseValue(10.0);
		}

		if (this.isLazy()) {
			this.getAttribute(Attributes.MOVEMENT_SPEED).setBaseValue(0.07F);
		}
	}

	void tryToSit() {
		if (!this.isInWater()) {
			this.setZza(0.0F);
			this.getNavigation().stop();
			this.sit(true);
		}
	}

	@Override
	public InteractionResult mobInteract(Player player, InteractionHand hand) {
		ItemStack itemStack = player.getItemInHand(hand);
		if (this.isScared()) {
			return InteractionResult.PASS;
		} else if (this.isOnBack()) {
			this.setOnBack(false);
			return InteractionResult.SUCCESS;
		} else if (this.isFood(itemStack)) {
			if (this.getTarget() != null) {
				this.gotBamboo = true;
			}

			if (this.isBaby()) {
				this.usePlayerItem(player, hand, itemStack);
				this.ageUp((int)(-this.getAge() / 20 * 0.1F), true);
			} else if (!this.level().isClientSide && this.getAge() == 0 && this.canFallInLove()) {
				this.usePlayerItem(player, hand, itemStack);
				this.setInLove(player);
			} else {
				if (!(this.level() instanceof ServerLevel serverLevel) || this.isSitting() || this.isInWater()) {
					return InteractionResult.PASS;
				}

				this.tryToSit();
				this.eat(true);
				ItemStack itemStack2 = this.getItemBySlot(EquipmentSlot.MAINHAND);
				if (!itemStack2.isEmpty() && !player.hasInfiniteMaterials()) {
					this.spawnAtLocation(serverLevel, itemStack2);
				}

				this.setItemSlot(EquipmentSlot.MAINHAND, new ItemStack(itemStack.getItem(), 1));
				this.usePlayerItem(player, hand, itemStack);
			}

			return InteractionResult.SUCCESS_SERVER;
		} else {
			return InteractionResult.PASS;
		}
	}

	@Nullable
	@Override
	protected SoundEvent getAmbientSound() {
		if (this.isAggressive()) {
			return SoundEvents.PANDA_AGGRESSIVE_AMBIENT;
		} else {
			return this.isWorried() ? SoundEvents.PANDA_WORRIED_AMBIENT : SoundEvents.PANDA_AMBIENT;
		}
	}

	@Override
	protected void playStepSound(BlockPos pos, BlockState state) {
		this.playSound(SoundEvents.PANDA_STEP, 0.15F, 1.0F);
	}

	@Override
	public boolean isFood(ItemStack stack) {
		return stack.is(ItemTags.PANDA_FOOD);
	}

	@Nullable
	@Override
	protected SoundEvent getDeathSound() {
		return SoundEvents.PANDA_DEATH;
	}

	@Nullable
	@Override
	protected SoundEvent getHurtSound(DamageSource damageSource) {
		return SoundEvents.PANDA_HURT;
	}

	public boolean canPerformAction() {
		return !this.isOnBack() && !this.isScared() && !this.isEating() && !this.isRolling() && !this.isSitting();
	}

	@Override
	public EntityDimensions getDefaultDimensions(Pose pose) {
		return this.isBaby() ? BABY_DIMENSIONS : super.getDefaultDimensions(pose);
	}

	private static boolean canPickUpAndEat(ItemEntity itemEntity) {
		return itemEntity.getItem().is(ItemTags.PANDA_EATS_FROM_GROUND) && itemEntity.isAlive() && !itemEntity.hasPickUpDelay();
	}

	public static enum Gene implements StringRepresentable {
		NORMAL(0, "normal", false),
		LAZY(1, "lazy", false),
		WORRIED(2, "worried", false),
		PLAYFUL(3, "playful", false),
		BROWN(4, "brown", true),
		WEAK(5, "weak", true),
		AGGRESSIVE(6, "aggressive", false);

		public static final Codec<Panda.Gene> CODEC = StringRepresentable.fromEnum(Panda.Gene::values);
		private static final IntFunction<Panda.Gene> BY_ID = ByIdMap.continuous(Panda.Gene::getId, values(), ByIdMap.OutOfBoundsStrategy.ZERO);
		private static final int MAX_GENE = 6;
		private final int id;
		private final String name;
		private final boolean isRecessive;

		private Gene(final int id, final String name, final boolean isRecessive) {
			this.id = id;
			this.name = name;
			this.isRecessive = isRecessive;
		}

		public int getId() {
			return this.id;
		}

		@Override
		public String getSerializedName() {
			return this.name;
		}

		public boolean isRecessive() {
			return this.isRecessive;
		}

		static Panda.Gene getVariantFromGenes(Panda.Gene mainGene, Panda.Gene hiddenGene) {
			if (mainGene.isRecessive()) {
				return mainGene == hiddenGene ? mainGene : NORMAL;
			} else {
				return mainGene;
			}
		}

		public static Panda.Gene byId(int index) {
			return (Panda.Gene)BY_ID.apply(index);
		}

		public static Panda.Gene getRandom(RandomSource random) {
			int i = random.nextInt(16);
			if (i == 0) {
				return LAZY;
			} else if (i == 1) {
				return WORRIED;
			} else if (i == 2) {
				return PLAYFUL;
			} else if (i == 4) {
				return AGGRESSIVE;
			} else if (i < 9) {
				return WEAK;
			} else {
				return i < 11 ? BROWN : NORMAL;
			}
		}
	}

	static class PandaAttackGoal extends MeleeAttackGoal {
		private final Panda panda;

		public PandaAttackGoal(Panda panda, double speedModifier, boolean followingTargetEvenIfNotSeen) {
			super(panda, speedModifier, followingTargetEvenIfNotSeen);
			this.panda = panda;
		}

		@Override
		public boolean canUse() {
			return this.panda.canPerformAction() && super.canUse();
		}
	}

	static class PandaAvoidGoal<T extends LivingEntity> extends AvoidEntityGoal<T> {
		private final Panda panda;

		public PandaAvoidGoal(Panda panda, Class<T> entityClassToAvoid, float maxDist, double walkSpeedModifier, double sprintSpeedModifier) {
			super(panda, entityClassToAvoid, maxDist, walkSpeedModifier, sprintSpeedModifier, EntitySelector.NO_SPECTATORS::test);
			this.panda = panda;
		}

		@Override
		public boolean canUse() {
			return this.panda.isWorried() && this.panda.canPerformAction() && super.canUse();
		}
	}

	static class PandaBreedGoal extends BreedGoal {
		private final Panda panda;
		private int unhappyCooldown;

		public PandaBreedGoal(Panda panda, double speedModifier) {
			super(panda, speedModifier);
			this.panda = panda;
		}

		@Override
		public boolean canUse() {
			if (!super.canUse() || this.panda.getUnhappyCounter() != 0) {
				return false;
			} else if (!this.canFindBamboo()) {
				if (this.unhappyCooldown <= this.panda.tickCount) {
					this.panda.setUnhappyCounter(32);
					this.unhappyCooldown = this.panda.tickCount + 600;
					if (this.panda.isEffectiveAi()) {
						Player player = this.level.getNearestPlayer(Panda.BREED_TARGETING, this.panda);
						this.panda.lookAtPlayerGoal.setTarget(player);
					}
				}

				return false;
			} else {
				return true;
			}
		}

		private boolean canFindBamboo() {
			BlockPos blockPos = this.panda.blockPosition();
			BlockPos.MutableBlockPos mutableBlockPos = new BlockPos.MutableBlockPos();

			for (int i = 0; i < 3; i++) {
				for (int j = 0; j < 8; j++) {
					for (int k = 0; k <= j; k = k > 0 ? -k : 1 - k) {
						for (int l = k < j && k > -j ? j : 0; l <= j; l = l > 0 ? -l : 1 - l) {
							mutableBlockPos.setWithOffset(blockPos, k, i, l);
							if (this.level.getBlockState(mutableBlockPos).is(Blocks.BAMBOO)) {
								return true;
							}
						}
					}
				}
			}

			return false;
		}
	}

	static class PandaHurtByTargetGoal extends HurtByTargetGoal {
		private final Panda panda;

		public PandaHurtByTargetGoal(Panda panda, Class<?>... entityClassToIgnoreDamage) {
			super(panda, entityClassToIgnoreDamage);
			this.panda = panda;
		}

		@Override
		public boolean canContinueToUse() {
			if (!this.panda.gotBamboo && !this.panda.didBite) {
				return super.canContinueToUse();
			} else {
				this.panda.setTarget(null);
				return false;
			}
		}

		@Override
		protected void alertOther(Mob mob, LivingEntity target) {
			if (mob instanceof Panda && mob.isAggressive()) {
				mob.setTarget(target);
			}
		}
	}

	static class PandaLieOnBackGoal extends Goal {
		private final Panda panda;
		private int cooldown;

		public PandaLieOnBackGoal(Panda panda) {
			this.panda = panda;
		}

		@Override
		public boolean canUse() {
			return this.cooldown < this.panda.tickCount && this.panda.isLazy() && this.panda.canPerformAction() && this.panda.random.nextInt(reducedTickDelay(400)) == 1;
		}

		@Override
		public boolean canContinueToUse() {
			return !this.panda.isInWater() && (this.panda.isLazy() || this.panda.random.nextInt(reducedTickDelay(600)) != 1)
				? this.panda.random.nextInt(reducedTickDelay(2000)) != 1
				: false;
		}

		@Override
		public void start() {
			this.panda.setOnBack(true);
			this.cooldown = 0;
		}

		@Override
		public void stop() {
			this.panda.setOnBack(false);
			this.cooldown = this.panda.tickCount + 200;
		}
	}

	static class PandaLookAtPlayerGoal extends LookAtPlayerGoal {
		private final Panda panda;

		public PandaLookAtPlayerGoal(Panda panda, Class<? extends LivingEntity> lookAtType, float lookDistance) {
			super(panda, lookAtType, lookDistance);
			this.panda = panda;
		}

		public void setTarget(LivingEntity lookAt) {
			this.lookAt = lookAt;
		}

		@Override
		public boolean canContinueToUse() {
			return this.lookAt != null && super.canContinueToUse();
		}

		@Override
		public boolean canUse() {
			if (this.mob.getRandom().nextFloat() >= this.probability) {
				return false;
			} else {
				if (this.lookAt == null) {
					ServerLevel serverLevel = getServerLevel(this.mob);
					if (this.lookAtType == Player.class) {
						this.lookAt = serverLevel.getNearestPlayer(this.lookAtContext, this.mob, this.mob.getX(), this.mob.getEyeY(), this.mob.getZ());
					} else {
						this.lookAt = serverLevel.getNearestEntity(
							this.mob.level().getEntitiesOfClass(this.lookAtType, this.mob.getBoundingBox().inflate(this.lookDistance, 3.0, this.lookDistance), livingEntity -> true),
							this.lookAtContext,
							this.mob,
							this.mob.getX(),
							this.mob.getEyeY(),
							this.mob.getZ()
						);
					}
				}

				return this.panda.canPerformAction() && this.lookAt != null;
			}
		}

		@Override
		public void tick() {
			if (this.lookAt != null) {
				super.tick();
			}
		}
	}

	static class PandaMoveControl extends MoveControl {
		private final Panda panda;

		public PandaMoveControl(Panda panda) {
			super(panda);
			this.panda = panda;
		}

		@Override
		public void tick() {
			if (this.panda.canPerformAction()) {
				super.tick();
			}
		}
	}

	static class PandaPanicGoal extends PanicGoal {
		private final Panda panda;

		public PandaPanicGoal(Panda panda, double speedModifier) {
			super(panda, speedModifier, DamageTypeTags.PANIC_ENVIRONMENTAL_CAUSES);
			this.panda = panda;
		}

		@Override
		public boolean canContinueToUse() {
			if (this.panda.isSitting()) {
				this.panda.getNavigation().stop();
				return false;
			} else {
				return super.canContinueToUse();
			}
		}
	}

	static class PandaRollGoal extends Goal {
		private final Panda panda;

		public PandaRollGoal(Panda panda) {
			this.panda = panda;
			this.setFlags(EnumSet.of(Goal.Flag.MOVE, Goal.Flag.LOOK, Goal.Flag.JUMP));
		}

		@Override
		public boolean canUse() {
			if ((this.panda.isBaby() || this.panda.isPlayful()) && this.panda.onGround()) {
				if (!this.panda.canPerformAction()) {
					return false;
				} else {
					float f = this.panda.getYRot() * (float) (Math.PI / 180.0);
					float g = -Mth.sin(f);
					float h = Mth.cos(f);
					int i = Math.abs(g) > 0.5 ? Mth.sign(g) : 0;
					int j = Math.abs(h) > 0.5 ? Mth.sign(h) : 0;
					if (this.panda.level().getBlockState(this.panda.blockPosition().offset(i, -1, j)).isAir()) {
						return true;
					} else {
						return this.panda.isPlayful() && this.panda.random.nextInt(reducedTickDelay(60)) == 1 ? true : this.panda.random.nextInt(reducedTickDelay(500)) == 1;
					}
				}
			} else {
				return false;
			}
		}

		@Override
		public boolean canContinueToUse() {
			return false;
		}

		@Override
		public void start() {
			this.panda.roll(true);
		}

		@Override
		public boolean isInterruptable() {
			return false;
		}
	}

	class PandaSitGoal extends Goal {
		private int cooldown;

		public PandaSitGoal() {
			this.setFlags(EnumSet.of(Goal.Flag.MOVE));
		}

		@Override
		public boolean canUse() {
			if (this.cooldown > Panda.this.tickCount
				|| Panda.this.isBaby()
				|| Panda.this.isInWater()
				|| !Panda.this.canPerformAction()
				|| Panda.this.getUnhappyCounter() > 0) {
				return false;
			} else {
				return !Panda.this.getItemBySlot(EquipmentSlot.MAINHAND).isEmpty()
					? true
					: !Panda.this.level().getEntitiesOfClass(ItemEntity.class, Panda.this.getBoundingBox().inflate(6.0, 6.0, 6.0), Panda::canPickUpAndEat).isEmpty();
			}
		}

		@Override
		public boolean canContinueToUse() {
			return !Panda.this.isInWater() && (Panda.this.isLazy() || Panda.this.random.nextInt(reducedTickDelay(600)) != 1)
				? Panda.this.random.nextInt(reducedTickDelay(2000)) != 1
				: false;
		}

		@Override
		public void tick() {
			if (!Panda.this.isSitting() && !Panda.this.getItemBySlot(EquipmentSlot.MAINHAND).isEmpty()) {
				Panda.this.tryToSit();
			}
		}

		@Override
		public void start() {
			if (Panda.this.getItemBySlot(EquipmentSlot.MAINHAND).isEmpty()) {
				List<ItemEntity> list = Panda.this.level().getEntitiesOfClass(ItemEntity.class, Panda.this.getBoundingBox().inflate(8.0, 8.0, 8.0), Panda::canPickUpAndEat);
				if (!list.isEmpty()) {
					Panda.this.getNavigation().moveTo((Entity)list.getFirst(), 1.2F);
				}
			} else {
				Panda.this.tryToSit();
			}

			this.cooldown = 0;
		}

		@Override
		public void stop() {
			ItemStack itemStack = Panda.this.getItemBySlot(EquipmentSlot.MAINHAND);
			if (!itemStack.isEmpty()) {
				Panda.this.spawnAtLocation(getServerLevel(Panda.this.level()), itemStack);
				Panda.this.setItemSlot(EquipmentSlot.MAINHAND, ItemStack.EMPTY);
				int i = Panda.this.isLazy() ? Panda.this.random.nextInt(50) + 10 : Panda.this.random.nextInt(150) + 10;
				this.cooldown = Panda.this.tickCount + i * 20;
			}

			Panda.this.sit(false);
		}
	}

	static class PandaSneezeGoal extends Goal {
		private final Panda panda;

		public PandaSneezeGoal(Panda panda) {
			this.panda = panda;
		}

		@Override
		public boolean canUse() {
			if (this.panda.isBaby() && this.panda.canPerformAction()) {
				return this.panda.isWeak() && this.panda.random.nextInt(reducedTickDelay(500)) == 1 ? true : this.panda.random.nextInt(reducedTickDelay(6000)) == 1;
			} else {
				return false;
			}
		}

		@Override
		public boolean canContinueToUse() {
			return false;
		}

		@Override
		public void start() {
			this.panda.sneeze(true);
		}
	}
}