Code/net/minecraft/world/entity/animal/frog/Frog.java

package net.minecraft.world.entity.animal.frog;

import com.google.common.collect.ImmutableList;
import com.mojang.serialization.Dynamic;
import java.util.Objects;
import java.util.Optional;
import java.util.OptionalInt;
import javax.annotation.Nullable;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Holder;
import net.minecraft.core.Registry;
import net.minecraft.core.component.DataComponentGetter;
import net.minecraft.core.component.DataComponentType;
import net.minecraft.core.component.DataComponents;
import net.minecraft.core.registries.Registries;
import net.minecraft.nbt.CompoundTag;
import net.minecraft.network.protocol.game.DebugPackets;
import net.minecraft.network.syncher.EntityDataAccessor;
import net.minecraft.network.syncher.EntityDataSerializers;
import net.minecraft.network.syncher.SynchedEntityData;
import net.minecraft.resources.ResourceKey;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.sounds.SoundEvent;
import net.minecraft.sounds.SoundEvents;
import net.minecraft.sounds.SoundSource;
import net.minecraft.tags.BlockTags;
import net.minecraft.tags.EntityTypeTags;
import net.minecraft.tags.ItemTags;
import net.minecraft.util.Mth;
import net.minecraft.util.RandomSource;
import net.minecraft.util.Unit;
import net.minecraft.util.profiling.Profiler;
import net.minecraft.util.profiling.ProfilerFiller;
import net.minecraft.world.DifficultyInstance;
import net.minecraft.world.damagesource.DamageSource;
import net.minecraft.world.entity.AgeableMob;
import net.minecraft.world.entity.AnimationState;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.EntitySpawnReason;
import net.minecraft.world.entity.EntityType;
import net.minecraft.world.entity.LivingEntity;
import net.minecraft.world.entity.Mob;
import net.minecraft.world.entity.MoverType;
import net.minecraft.world.entity.Pose;
import net.minecraft.world.entity.SpawnGroupData;
import net.minecraft.world.entity.ai.Brain;
import net.minecraft.world.entity.ai.attributes.AttributeSupplier;
import net.minecraft.world.entity.ai.attributes.Attributes;
import net.minecraft.world.entity.ai.control.LookControl;
import net.minecraft.world.entity.ai.control.SmoothSwimmingMoveControl;
import net.minecraft.world.entity.ai.memory.MemoryModuleType;
import net.minecraft.world.entity.ai.navigation.AmphibiousPathNavigation;
import net.minecraft.world.entity.ai.navigation.PathNavigation;
import net.minecraft.world.entity.ai.sensing.Sensor;
import net.minecraft.world.entity.ai.sensing.SensorType;
import net.minecraft.world.entity.animal.Animal;
import net.minecraft.world.entity.monster.Slime;
import net.minecraft.world.entity.variant.SpawnContext;
import net.minecraft.world.entity.variant.VariantUtils;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.LevelAccessor;
import net.minecraft.world.level.ServerLevelAccessor;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.pathfinder.AmphibiousNodeEvaluator;
import net.minecraft.world.level.pathfinder.Node;
import net.minecraft.world.level.pathfinder.PathFinder;
import net.minecraft.world.level.pathfinder.PathType;
import net.minecraft.world.level.pathfinder.PathfindingContext;
import net.minecraft.world.phys.Vec3;

public class Frog extends Animal {
    protected static final ImmutableList<SensorType<? extends Sensor<? super Frog>>> SENSOR_TYPES = ImmutableList.of(
        SensorType.NEAREST_LIVING_ENTITIES, SensorType.HURT_BY, SensorType.FROG_ATTACKABLES, SensorType.FROG_TEMPTATIONS, SensorType.IS_IN_WATER
    );
    protected static final ImmutableList<MemoryModuleType<?>> MEMORY_TYPES = ImmutableList.of(
        MemoryModuleType.LOOK_TARGET,
        MemoryModuleType.NEAREST_LIVING_ENTITIES,
        MemoryModuleType.NEAREST_VISIBLE_LIVING_ENTITIES,
        MemoryModuleType.WALK_TARGET,
        MemoryModuleType.CANT_REACH_WALK_TARGET_SINCE,
        MemoryModuleType.PATH,
        MemoryModuleType.BREED_TARGET,
        MemoryModuleType.LONG_JUMP_COOLDOWN_TICKS,
        MemoryModuleType.LONG_JUMP_MID_JUMP,
        MemoryModuleType.ATTACK_TARGET,
        MemoryModuleType.TEMPTING_PLAYER,
        MemoryModuleType.TEMPTATION_COOLDOWN_TICKS,
        MemoryModuleType.IS_TEMPTED,
        MemoryModuleType.HURT_BY,
        MemoryModuleType.HURT_BY_ENTITY,
        MemoryModuleType.NEAREST_ATTACKABLE,
        MemoryModuleType.IS_IN_WATER,
        MemoryModuleType.IS_PREGNANT,
        MemoryModuleType.IS_PANICKING,
        MemoryModuleType.UNREACHABLE_TONGUE_TARGETS
    );
    private static final EntityDataAccessor<Holder<FrogVariant>> DATA_VARIANT_ID = SynchedEntityData.defineId(Frog.class, EntityDataSerializers.FROG_VARIANT);
    private static final EntityDataAccessor<OptionalInt> DATA_TONGUE_TARGET_ID = SynchedEntityData.defineId(Frog.class, EntityDataSerializers.OPTIONAL_UNSIGNED_INT);
    private static final int FROG_FALL_DAMAGE_REDUCTION = 5;
    private static final ResourceKey<FrogVariant> DEFAULT_VARIANT = FrogVariants.TEMPERATE;
    public final AnimationState jumpAnimationState = new AnimationState();
    public final AnimationState croakAnimationState = new AnimationState();
    public final AnimationState tongueAnimationState = new AnimationState();
    public final AnimationState swimIdleAnimationState = new AnimationState();

    public Frog(EntityType<? extends Animal> p_218470_, Level p_218471_) {
        super(p_218470_, p_218471_);
        this.lookControl = new Frog.FrogLookControl(this);
        this.setPathfindingMalus(PathType.WATER, 4.0F);
        this.setPathfindingMalus(PathType.TRAPDOOR, -1.0F);
        this.moveControl = new SmoothSwimmingMoveControl(this, 85, 10, 0.02F, 0.1F, true);
    }

    @Override
    protected Brain.Provider<Frog> brainProvider() {
        return Brain.provider(MEMORY_TYPES, SENSOR_TYPES);
    }

    @Override
    protected Brain<?> makeBrain(Dynamic<?> p_218494_) {
        return FrogAi.makeBrain(this.brainProvider().makeBrain(p_218494_));
    }

    @Override
    public Brain<Frog> getBrain() {
        return (Brain<Frog>)super.getBrain();
    }

    @Override
    protected void defineSynchedData(SynchedEntityData.Builder p_332901_) {
        super.defineSynchedData(p_332901_);
        Registry<FrogVariant> registry = this.registryAccess().lookupOrThrow(Registries.FROG_VARIANT);
        p_332901_.define(DATA_VARIANT_ID, VariantUtils.getDefaultOrAny(this.registryAccess(), DEFAULT_VARIANT));
        p_332901_.define(DATA_TONGUE_TARGET_ID, OptionalInt.empty());
    }

    public void eraseTongueTarget() {
        this.entityData.set(DATA_TONGUE_TARGET_ID, OptionalInt.empty());
    }

    public Optional<Entity> getTongueTarget() {
        return this.entityData.get(DATA_TONGUE_TARGET_ID).stream().mapToObj(this.level()::getEntity).filter(Objects::nonNull).findFirst();
    }

    public void setTongueTarget(Entity p_218482_) {
        this.entityData.set(DATA_TONGUE_TARGET_ID, OptionalInt.of(p_218482_.getId()));
    }

    @Override
    public int getHeadRotSpeed() {
        return 35;
    }

    @Override
    public int getMaxHeadYRot() {
        return 5;
    }

    public Holder<FrogVariant> getVariant() {
        return this.entityData.get(DATA_VARIANT_ID);
    }

    private void setVariant(Holder<FrogVariant> p_329156_) {
        this.entityData.set(DATA_VARIANT_ID, p_329156_);
    }

    @Nullable
    @Override
    public <T> T get(DataComponentType<? extends T> p_395428_) {
        return p_395428_ == DataComponents.FROG_VARIANT ? castComponentValue((DataComponentType<T>)p_395428_, this.getVariant()) : super.get(p_395428_);
    }

    @Override
    protected void applyImplicitComponents(DataComponentGetter p_396714_) {
        this.applyImplicitComponentIfPresent(p_396714_, DataComponents.FROG_VARIANT);
        super.applyImplicitComponents(p_396714_);
    }

    @Override
    protected <T> boolean applyImplicitComponent(DataComponentType<T> p_395194_, T p_391742_) {
        if (p_395194_ == DataComponents.FROG_VARIANT) {
            this.setVariant(castComponentValue(DataComponents.FROG_VARIANT, p_391742_));
            return true;
        } else {
            return super.applyImplicitComponent(p_395194_, p_391742_);
        }
    }

    @Override
    public void addAdditionalSaveData(CompoundTag p_218508_) {
        super.addAdditionalSaveData(p_218508_);
        VariantUtils.writeVariant(p_218508_, this.getVariant());
    }

    @Override
    public void readAdditionalSaveData(CompoundTag p_218496_) {
        super.readAdditionalSaveData(p_218496_);
        VariantUtils.readVariant(p_218496_, this.registryAccess(), Registries.FROG_VARIANT).ifPresent(this::setVariant);
    }

    @Override
    protected void customServerAiStep(ServerLevel p_364897_) {
        ProfilerFiller profilerfiller = Profiler.get();
        profilerfiller.push("frogBrain");
        this.getBrain().tick(p_364897_, this);
        profilerfiller.pop();
        profilerfiller.push("frogActivityUpdate");
        FrogAi.updateActivity(this);
        profilerfiller.pop();
        super.customServerAiStep(p_364897_);
    }

    @Override
    public void tick() {
        if (this.level().isClientSide()) {
            this.swimIdleAnimationState.animateWhen(this.isInWater() && !this.walkAnimation.isMoving(), this.tickCount);
        }

        super.tick();
    }

    @Override
    public void onSyncedDataUpdated(EntityDataAccessor<?> p_218498_) {
        if (DATA_POSE.equals(p_218498_)) {
            Pose pose = this.getPose();
            if (pose == Pose.LONG_JUMPING) {
                this.jumpAnimationState.start(this.tickCount);
            } else {
                this.jumpAnimationState.stop();
            }

            if (pose == Pose.CROAKING) {
                this.croakAnimationState.start(this.tickCount);
            } else {
                this.croakAnimationState.stop();
            }

            if (pose == Pose.USING_TONGUE) {
                this.tongueAnimationState.start(this.tickCount);
            } else {
                this.tongueAnimationState.stop();
            }
        }

        super.onSyncedDataUpdated(p_218498_);
    }

    @Override
    protected void updateWalkAnimation(float p_268239_) {
        float f;
        if (this.jumpAnimationState.isStarted()) {
            f = 0.0F;
        } else {
            f = Math.min(p_268239_ * 25.0F, 1.0F);
        }

        this.walkAnimation.update(f, 0.4F, this.isBaby() ? 3.0F : 1.0F);
    }

    @Override
    public void playEatingSound() {
        this.level().playSound(null, this, SoundEvents.FROG_EAT, SoundSource.NEUTRAL, 2.0F, 1.0F);
    }

    @Nullable
    @Override
    public AgeableMob getBreedOffspring(ServerLevel p_218476_, AgeableMob p_218477_) {
        Frog frog = EntityType.FROG.create(p_218476_, EntitySpawnReason.BREEDING);
        if (frog != null) {
            FrogAi.initMemories(frog, p_218476_.getRandom());
        }

        return frog;
    }

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

    @Override
    public void setBaby(boolean p_218500_) {
    }

    @Override
    public void spawnChildFromBreeding(ServerLevel p_218479_, Animal p_218480_) {
        this.finalizeSpawnChildFromBreeding(p_218479_, p_218480_, null);
        this.getBrain().setMemory(MemoryModuleType.IS_PREGNANT, Unit.INSTANCE);
    }

    @Override
    public SpawnGroupData finalizeSpawn(ServerLevelAccessor p_218488_, DifficultyInstance p_218489_, EntitySpawnReason p_366918_, @Nullable SpawnGroupData p_218491_) {
        FrogVariants.selectVariantToSpawn(this.random, this.registryAccess(), SpawnContext.create(p_218488_, this.blockPosition())).ifPresent(this::setVariant);
        FrogAi.initMemories(this, p_218488_.getRandom());
        return super.finalizeSpawn(p_218488_, p_218489_, p_366918_, p_218491_);
    }

    public static AttributeSupplier.Builder createAttributes() {
        return Animal.createAnimalAttributes()
            .add(Attributes.MOVEMENT_SPEED, 1.0)
            .add(Attributes.MAX_HEALTH, 10.0)
            .add(Attributes.ATTACK_DAMAGE, 10.0)
            .add(Attributes.STEP_HEIGHT, 1.0);
    }

    @Nullable
    @Override
    protected SoundEvent getAmbientSound() {
        return SoundEvents.FROG_AMBIENT;
    }

    @Nullable
    @Override
    protected SoundEvent getHurtSound(DamageSource p_218510_) {
        return SoundEvents.FROG_HURT;
    }

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

    @Override
    protected void playStepSound(BlockPos p_218505_, BlockState p_218506_) {
        this.playSound(SoundEvents.FROG_STEP, 0.15F, 1.0F);
    }

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

    @Override
    protected void sendDebugPackets() {
        super.sendDebugPackets();
        DebugPackets.sendEntityBrain(this);
    }

    @Override
    protected int calculateFallDamage(double p_393819_, float p_218519_) {
        return super.calculateFallDamage(p_393819_, p_218519_) - 5;
    }

    @Override
    public void travel(Vec3 p_218530_) {
        if (this.isInWater()) {
            this.moveRelative(this.getSpeed(), p_218530_);
            this.move(MoverType.SELF, this.getDeltaMovement());
            this.setDeltaMovement(this.getDeltaMovement().scale(0.9));
        } else {
            super.travel(p_218530_);
        }
    }

    public static boolean canEat(LivingEntity p_218533_) {
        return p_218533_ instanceof Slime slime && slime.getSize() != 1 ? false : p_218533_.getType().is(EntityTypeTags.FROG_FOOD);
    }

    @Override
    protected PathNavigation createNavigation(Level p_218486_) {
        return new Frog.FrogPathNavigation(this, p_218486_);
    }

    @Nullable
    @Override
    public LivingEntity getTarget() {
        return this.getTargetFromBrain();
    }

    @Override
    public boolean isFood(ItemStack p_218535_) {
        return p_218535_.is(ItemTags.FROG_FOOD);
    }

    public static boolean checkFrogSpawnRules(
        EntityType<? extends Animal> p_218512_, LevelAccessor p_218513_, EntitySpawnReason p_369828_, BlockPos p_218515_, RandomSource p_218516_
    ) {
        return p_218513_.getBlockState(p_218515_.below()).is(BlockTags.FROGS_SPAWNABLE_ON) && isBrightEnoughToSpawn(p_218513_, p_218515_);
    }

    class FrogLookControl extends LookControl {
        FrogLookControl(final Mob p_218544_) {
            super(p_218544_);
        }

        @Override
        protected boolean resetXRotOnTick() {
            return Frog.this.getTongueTarget().isEmpty();
        }
    }

    static class FrogNodeEvaluator extends AmphibiousNodeEvaluator {
        private final BlockPos.MutableBlockPos belowPos = new BlockPos.MutableBlockPos();

        public FrogNodeEvaluator(boolean p_218548_) {
            super(p_218548_);
        }

        @Override
        public Node getStart() {
            return !this.mob.isInWater()
                ? super.getStart()
                : this.getStartNode(
                    new BlockPos(
                        Mth.floor(this.mob.getBoundingBox().minX),
                        Mth.floor(this.mob.getBoundingBox().minY),
                        Mth.floor(this.mob.getBoundingBox().minZ)
                    )
                );
        }

        @Override
        public PathType getPathType(PathfindingContext p_329957_, int p_331836_, int p_331056_, int p_330649_) {
            this.belowPos.set(p_331836_, p_331056_ - 1, p_330649_);
            BlockState blockstate = p_329957_.getBlockState(this.belowPos);
            return blockstate.is(BlockTags.FROG_PREFER_JUMP_TO) ? PathType.OPEN : super.getPathType(p_329957_, p_331836_, p_331056_, p_330649_);
        }
    }

    static class FrogPathNavigation extends AmphibiousPathNavigation {
        FrogPathNavigation(Frog p_218556_, Level p_218557_) {
            super(p_218556_, p_218557_);
        }

        @Override
        public boolean canCutCorner(PathType p_330883_) {
            return p_330883_ != PathType.WATER_BORDER && super.canCutCorner(p_330883_);
        }

        @Override
        protected PathFinder createPathFinder(int p_218559_) {
            this.nodeEvaluator = new Frog.FrogNodeEvaluator(true);
            return new PathFinder(this.nodeEvaluator, p_218559_);
        }
    }
}