minecraft-src/net/minecraft/world/entity/animal/Rabbit.java
2025-07-04 03:45:38 +03:00

661 lines
21 KiB
Java

package net.minecraft.world.entity.animal;
import com.mojang.serialization.Codec;
import io.netty.buffer.ByteBuf;
import java.util.function.IntFunction;
import net.minecraft.Util;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Holder;
import net.minecraft.core.component.DataComponentGetter;
import net.minecraft.core.component.DataComponentType;
import net.minecraft.core.component.DataComponents;
import net.minecraft.nbt.CompoundTag;
import net.minecraft.network.chat.Component;
import net.minecraft.network.codec.ByteBufCodecs;
import net.minecraft.network.codec.StreamCodec;
import net.minecraft.network.syncher.EntityDataAccessor;
import net.minecraft.network.syncher.EntityDataSerializers;
import net.minecraft.network.syncher.SynchedEntityData;
import net.minecraft.network.syncher.SynchedEntityData.Builder;
import net.minecraft.resources.ResourceLocation;
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.BiomeTags;
import net.minecraft.tags.BlockTags;
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.damagesource.DamageSource;
import net.minecraft.world.entity.AgeableMob;
import net.minecraft.world.entity.EntitySpawnReason;
import net.minecraft.world.entity.EntityType;
import net.minecraft.world.entity.LivingEntity;
import net.minecraft.world.entity.SpawnGroupData;
import net.minecraft.world.entity.ai.attributes.AttributeModifier;
import net.minecraft.world.entity.ai.attributes.Attributes;
import net.minecraft.world.entity.ai.control.JumpControl;
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.ClimbOnTopOfPowderSnowGoal;
import net.minecraft.world.entity.ai.goal.FloatGoal;
import net.minecraft.world.entity.ai.goal.LookAtPlayerGoal;
import net.minecraft.world.entity.ai.goal.MeleeAttackGoal;
import net.minecraft.world.entity.ai.goal.MoveToBlockGoal;
import net.minecraft.world.entity.ai.goal.PanicGoal;
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.goal.target.NearestAttackableTargetGoal;
import net.minecraft.world.entity.animal.wolf.Wolf;
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.LevelAccessor;
import net.minecraft.world.level.LevelReader;
import net.minecraft.world.level.ServerLevelAccessor;
import net.minecraft.world.level.biome.Biome;
import net.minecraft.world.level.block.Block;
import net.minecraft.world.level.block.Blocks;
import net.minecraft.world.level.block.CarrotBlock;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.gameevent.GameEvent;
import net.minecraft.world.level.gameevent.GameEvent.Context;
import net.minecraft.world.level.pathfinder.Path;
import net.minecraft.world.phys.Vec3;
import org.jetbrains.annotations.Nullable;
public class Rabbit extends Animal {
public static final double STROLL_SPEED_MOD = 0.6;
public static final double BREED_SPEED_MOD = 0.8;
public static final double FOLLOW_SPEED_MOD = 1.0;
public static final double FLEE_SPEED_MOD = 2.2;
public static final double ATTACK_SPEED_MOD = 1.4;
private static final EntityDataAccessor<Integer> DATA_TYPE_ID = SynchedEntityData.defineId(Rabbit.class, EntityDataSerializers.INT);
private static final int DEFAULT_MORE_CARROT_TICKS = 0;
private static final ResourceLocation KILLER_BUNNY = ResourceLocation.withDefaultNamespace("killer_bunny");
private static final int DEFAULT_ATTACK_POWER = 3;
private static final int EVIL_ATTACK_POWER_INCREMENT = 5;
private static final ResourceLocation EVIL_ATTACK_POWER_MODIFIER = ResourceLocation.withDefaultNamespace("evil");
private static final int EVIL_ARMOR_VALUE = 8;
private static final int MORE_CARROTS_DELAY = 40;
private int jumpTicks;
private int jumpDuration;
private boolean wasOnGround;
private int jumpDelayTicks;
int moreCarrotTicks = 0;
public Rabbit(EntityType<? extends Rabbit> entityType, Level level) {
super(entityType, level);
this.jumpControl = new Rabbit.RabbitJumpControl(this);
this.moveControl = new Rabbit.RabbitMoveControl(this);
this.setSpeedModifier(0.0);
}
@Override
protected void registerGoals() {
this.goalSelector.addGoal(1, new FloatGoal(this));
this.goalSelector.addGoal(1, new ClimbOnTopOfPowderSnowGoal(this, this.level()));
this.goalSelector.addGoal(1, new Rabbit.RabbitPanicGoal(this, 2.2));
this.goalSelector.addGoal(2, new BreedGoal(this, 0.8));
this.goalSelector.addGoal(3, new TemptGoal(this, 1.0, itemStack -> itemStack.is(ItemTags.RABBIT_FOOD), false));
this.goalSelector.addGoal(4, new Rabbit.RabbitAvoidEntityGoal(this, Player.class, 8.0F, 2.2, 2.2));
this.goalSelector.addGoal(4, new Rabbit.RabbitAvoidEntityGoal(this, Wolf.class, 10.0F, 2.2, 2.2));
this.goalSelector.addGoal(4, new Rabbit.RabbitAvoidEntityGoal(this, Monster.class, 4.0F, 2.2, 2.2));
this.goalSelector.addGoal(5, new Rabbit.RaidGardenGoal(this));
this.goalSelector.addGoal(6, new WaterAvoidingRandomStrollGoal(this, 0.6));
this.goalSelector.addGoal(11, new LookAtPlayerGoal(this, Player.class, 10.0F));
}
@Override
protected float getJumpPower() {
float f = 0.3F;
if (this.moveControl.getSpeedModifier() <= 0.6) {
f = 0.2F;
}
Path path = this.navigation.getPath();
if (path != null && !path.isDone()) {
Vec3 vec3 = path.getNextEntityPos(this);
if (vec3.y > this.getY() + 0.5) {
f = 0.5F;
}
}
if (this.horizontalCollision || this.jumping && this.moveControl.getWantedY() > this.getY() + 0.5) {
f = 0.5F;
}
return super.getJumpPower(f / 0.42F);
}
@Override
public void jumpFromGround() {
super.jumpFromGround();
double d = this.moveControl.getSpeedModifier();
if (d > 0.0) {
double e = this.getDeltaMovement().horizontalDistanceSqr();
if (e < 0.01) {
this.moveRelative(0.1F, new Vec3(0.0, 0.0, 1.0));
}
}
if (!this.level().isClientSide) {
this.level().broadcastEntityEvent(this, (byte)1);
}
}
public float getJumpCompletion(float partialTick) {
return this.jumpDuration == 0 ? 0.0F : (this.jumpTicks + partialTick) / this.jumpDuration;
}
public void setSpeedModifier(double speedModifier) {
this.getNavigation().setSpeedModifier(speedModifier);
this.moveControl.setWantedPosition(this.moveControl.getWantedX(), this.moveControl.getWantedY(), this.moveControl.getWantedZ(), speedModifier);
}
@Override
public void setJumping(boolean jumping) {
super.setJumping(jumping);
if (jumping) {
this.playSound(this.getJumpSound(), this.getSoundVolume(), ((this.random.nextFloat() - this.random.nextFloat()) * 0.2F + 1.0F) * 0.8F);
}
}
public void startJumping() {
this.setJumping(true);
this.jumpDuration = 10;
this.jumpTicks = 0;
}
@Override
protected void defineSynchedData(Builder builder) {
super.defineSynchedData(builder);
builder.define(DATA_TYPE_ID, Rabbit.Variant.DEFAULT.id);
}
@Override
public void customServerAiStep(ServerLevel level) {
if (this.jumpDelayTicks > 0) {
this.jumpDelayTicks--;
}
if (this.moreCarrotTicks > 0) {
this.moreCarrotTicks = this.moreCarrotTicks - this.random.nextInt(3);
if (this.moreCarrotTicks < 0) {
this.moreCarrotTicks = 0;
}
}
if (this.onGround()) {
if (!this.wasOnGround) {
this.setJumping(false);
this.checkLandingDelay();
}
if (this.getVariant() == Rabbit.Variant.EVIL && this.jumpDelayTicks == 0) {
LivingEntity livingEntity = this.getTarget();
if (livingEntity != null && this.distanceToSqr(livingEntity) < 16.0) {
this.facePoint(livingEntity.getX(), livingEntity.getZ());
this.moveControl.setWantedPosition(livingEntity.getX(), livingEntity.getY(), livingEntity.getZ(), this.moveControl.getSpeedModifier());
this.startJumping();
this.wasOnGround = true;
}
}
Rabbit.RabbitJumpControl rabbitJumpControl = (Rabbit.RabbitJumpControl)this.jumpControl;
if (!rabbitJumpControl.wantJump()) {
if (this.moveControl.hasWanted() && this.jumpDelayTicks == 0) {
Path path = this.navigation.getPath();
Vec3 vec3 = new Vec3(this.moveControl.getWantedX(), this.moveControl.getWantedY(), this.moveControl.getWantedZ());
if (path != null && !path.isDone()) {
vec3 = path.getNextEntityPos(this);
}
this.facePoint(vec3.x, vec3.z);
this.startJumping();
}
} else if (!rabbitJumpControl.canJump()) {
this.enableJumpControl();
}
}
this.wasOnGround = this.onGround();
}
@Override
public boolean canSpawnSprintParticle() {
return false;
}
private void facePoint(double x, double z) {
this.setYRot((float)(Mth.atan2(z - this.getZ(), x - this.getX()) * 180.0F / (float)Math.PI) - 90.0F);
}
private void enableJumpControl() {
((Rabbit.RabbitJumpControl)this.jumpControl).setCanJump(true);
}
private void disableJumpControl() {
((Rabbit.RabbitJumpControl)this.jumpControl).setCanJump(false);
}
private void setLandingDelay() {
if (this.moveControl.getSpeedModifier() < 2.2) {
this.jumpDelayTicks = 10;
} else {
this.jumpDelayTicks = 1;
}
}
private void checkLandingDelay() {
this.setLandingDelay();
this.disableJumpControl();
}
@Override
public void aiStep() {
super.aiStep();
if (this.jumpTicks != this.jumpDuration) {
this.jumpTicks++;
} else if (this.jumpDuration != 0) {
this.jumpTicks = 0;
this.jumpDuration = 0;
this.setJumping(false);
}
}
public static net.minecraft.world.entity.ai.attributes.AttributeSupplier.Builder createAttributes() {
return Animal.createAnimalAttributes().add(Attributes.MAX_HEALTH, 3.0).add(Attributes.MOVEMENT_SPEED, 0.3F).add(Attributes.ATTACK_DAMAGE, 3.0);
}
@Override
public void addAdditionalSaveData(CompoundTag tag) {
super.addAdditionalSaveData(tag);
tag.store("RabbitType", Rabbit.Variant.LEGACY_CODEC, this.getVariant());
tag.putInt("MoreCarrotTicks", this.moreCarrotTicks);
}
@Override
public void readAdditionalSaveData(CompoundTag tag) {
super.readAdditionalSaveData(tag);
this.setVariant((Rabbit.Variant)tag.read("RabbitType", Rabbit.Variant.LEGACY_CODEC).orElse(Rabbit.Variant.DEFAULT));
this.moreCarrotTicks = tag.getIntOr("MoreCarrotTicks", 0);
}
protected SoundEvent getJumpSound() {
return SoundEvents.RABBIT_JUMP;
}
@Override
protected SoundEvent getAmbientSound() {
return SoundEvents.RABBIT_AMBIENT;
}
@Override
protected SoundEvent getHurtSound(DamageSource damageSource) {
return SoundEvents.RABBIT_HURT;
}
@Override
protected SoundEvent getDeathSound() {
return SoundEvents.RABBIT_DEATH;
}
@Override
public void playAttackSound() {
if (this.getVariant() == Rabbit.Variant.EVIL) {
this.playSound(SoundEvents.RABBIT_ATTACK, 1.0F, (this.random.nextFloat() - this.random.nextFloat()) * 0.2F + 1.0F);
}
}
@Override
public SoundSource getSoundSource() {
return this.getVariant() == Rabbit.Variant.EVIL ? SoundSource.HOSTILE : SoundSource.NEUTRAL;
}
@Nullable
public Rabbit getBreedOffspring(ServerLevel serverLevel, AgeableMob ageableMob) {
Rabbit rabbit = EntityType.RABBIT.create(serverLevel, EntitySpawnReason.BREEDING);
if (rabbit != null) {
Rabbit.Variant variant = getRandomRabbitVariant(serverLevel, this.blockPosition());
if (this.random.nextInt(20) != 0) {
if (ageableMob instanceof Rabbit rabbit2 && this.random.nextBoolean()) {
variant = rabbit2.getVariant();
} else {
variant = this.getVariant();
}
}
rabbit.setVariant(variant);
}
return rabbit;
}
@Override
public boolean isFood(ItemStack stack) {
return stack.is(ItemTags.RABBIT_FOOD);
}
public Rabbit.Variant getVariant() {
return Rabbit.Variant.byId(this.entityData.get(DATA_TYPE_ID));
}
private void setVariant(Rabbit.Variant variant) {
if (variant == Rabbit.Variant.EVIL) {
this.getAttribute(Attributes.ARMOR).setBaseValue(8.0);
this.goalSelector.addGoal(4, new MeleeAttackGoal(this, 1.4, true));
this.targetSelector.addGoal(1, new HurtByTargetGoal(this).setAlertOthers());
this.targetSelector.addGoal(2, new NearestAttackableTargetGoal(this, Player.class, true));
this.targetSelector.addGoal(2, new NearestAttackableTargetGoal(this, Wolf.class, true));
this.getAttribute(Attributes.ATTACK_DAMAGE)
.addOrUpdateTransientModifier(new AttributeModifier(EVIL_ATTACK_POWER_MODIFIER, 5.0, AttributeModifier.Operation.ADD_VALUE));
if (!this.hasCustomName()) {
this.setCustomName(Component.translatable(Util.makeDescriptionId("entity", KILLER_BUNNY)));
}
} else {
this.getAttribute(Attributes.ATTACK_DAMAGE).removeModifier(EVIL_ATTACK_POWER_MODIFIER);
}
this.entityData.set(DATA_TYPE_ID, variant.id);
}
@Nullable
@Override
public <T> T get(DataComponentType<? extends T> component) {
return component == DataComponents.RABBIT_VARIANT ? castComponentValue((DataComponentType<T>)component, this.getVariant()) : super.get(component);
}
@Override
protected void applyImplicitComponents(DataComponentGetter componentGetter) {
this.applyImplicitComponentIfPresent(componentGetter, DataComponents.RABBIT_VARIANT);
super.applyImplicitComponents(componentGetter);
}
@Override
protected <T> boolean applyImplicitComponent(DataComponentType<T> component, T value) {
if (component == DataComponents.RABBIT_VARIANT) {
this.setVariant(castComponentValue(DataComponents.RABBIT_VARIANT, value));
return true;
} else {
return super.applyImplicitComponent(component, value);
}
}
@Nullable
@Override
public SpawnGroupData finalizeSpawn(
ServerLevelAccessor level, DifficultyInstance difficulty, EntitySpawnReason spawnReason, @Nullable SpawnGroupData spawnGroupData
) {
Rabbit.Variant variant = getRandomRabbitVariant(level, this.blockPosition());
if (spawnGroupData instanceof Rabbit.RabbitGroupData) {
variant = ((Rabbit.RabbitGroupData)spawnGroupData).variant;
} else {
spawnGroupData = new Rabbit.RabbitGroupData(variant);
}
this.setVariant(variant);
return super.finalizeSpawn(level, difficulty, spawnReason, spawnGroupData);
}
private static Rabbit.Variant getRandomRabbitVariant(LevelAccessor level, BlockPos pos) {
Holder<Biome> holder = level.getBiome(pos);
int i = level.getRandom().nextInt(100);
if (holder.is(BiomeTags.SPAWNS_WHITE_RABBITS)) {
return i < 80 ? Rabbit.Variant.WHITE : Rabbit.Variant.WHITE_SPLOTCHED;
} else if (holder.is(BiomeTags.SPAWNS_GOLD_RABBITS)) {
return Rabbit.Variant.GOLD;
} else {
return i < 50 ? Rabbit.Variant.BROWN : (i < 90 ? Rabbit.Variant.SALT : Rabbit.Variant.BLACK);
}
}
public static boolean checkRabbitSpawnRules(
EntityType<Rabbit> entityType, LevelAccessor level, EntitySpawnReason spawnReason, BlockPos pos, RandomSource random
) {
return level.getBlockState(pos.below()).is(BlockTags.RABBITS_SPAWNABLE_ON) && isBrightEnoughToSpawn(level, pos);
}
/**
* Returns {@code true} if {@link #moreCarrotTicks} has reached zero
*/
boolean wantsMoreFood() {
return this.moreCarrotTicks <= 0;
}
@Override
public void handleEntityEvent(byte id) {
if (id == 1) {
this.spawnSprintParticle();
this.jumpDuration = 10;
this.jumpTicks = 0;
} else {
super.handleEntityEvent(id);
}
}
@Override
public Vec3 getLeashOffset() {
return new Vec3(0.0, 0.6F * this.getEyeHeight(), this.getBbWidth() * 0.4F);
}
static class RabbitAvoidEntityGoal<T extends LivingEntity> extends AvoidEntityGoal<T> {
private final Rabbit rabbit;
public RabbitAvoidEntityGoal(Rabbit rabbit, Class<T> entityClassToAvoid, float maxDist, double walkSpeedModifier, double sprintSpeedModifier) {
super(rabbit, entityClassToAvoid, maxDist, walkSpeedModifier, sprintSpeedModifier);
this.rabbit = rabbit;
}
@Override
public boolean canUse() {
return this.rabbit.getVariant() != Rabbit.Variant.EVIL && super.canUse();
}
}
public static class RabbitGroupData extends AgeableMob.AgeableMobGroupData {
public final Rabbit.Variant variant;
public RabbitGroupData(Rabbit.Variant variant) {
super(1.0F);
this.variant = variant;
}
}
public static class RabbitJumpControl extends JumpControl {
private final Rabbit rabbit;
private boolean canJump;
public RabbitJumpControl(Rabbit rabbit) {
super(rabbit);
this.rabbit = rabbit;
}
public boolean wantJump() {
return this.jump;
}
public boolean canJump() {
return this.canJump;
}
public void setCanJump(boolean canJump) {
this.canJump = canJump;
}
@Override
public void tick() {
if (this.jump) {
this.rabbit.startJumping();
this.jump = false;
}
}
}
static class RabbitMoveControl extends MoveControl {
private final Rabbit rabbit;
private double nextJumpSpeed;
public RabbitMoveControl(Rabbit rabbit) {
super(rabbit);
this.rabbit = rabbit;
}
@Override
public void tick() {
if (this.rabbit.onGround() && !this.rabbit.jumping && !((Rabbit.RabbitJumpControl)this.rabbit.jumpControl).wantJump()) {
this.rabbit.setSpeedModifier(0.0);
} else if (this.hasWanted() || this.operation == MoveControl.Operation.JUMPING) {
this.rabbit.setSpeedModifier(this.nextJumpSpeed);
}
super.tick();
}
@Override
public void setWantedPosition(double x, double y, double z, double speed) {
if (this.rabbit.isInWater()) {
speed = 1.5;
}
super.setWantedPosition(x, y, z, speed);
if (speed > 0.0) {
this.nextJumpSpeed = speed;
}
}
}
static class RabbitPanicGoal extends PanicGoal {
private final Rabbit rabbit;
public RabbitPanicGoal(Rabbit rabbit, double speedModifier) {
super(rabbit, speedModifier);
this.rabbit = rabbit;
}
@Override
public void tick() {
super.tick();
this.rabbit.setSpeedModifier(this.speedModifier);
}
}
static class RaidGardenGoal extends MoveToBlockGoal {
private final Rabbit rabbit;
private boolean wantsToRaid;
private boolean canRaid;
public RaidGardenGoal(Rabbit rabbit) {
super(rabbit, 0.7F, 16);
this.rabbit = rabbit;
}
@Override
public boolean canUse() {
if (this.nextStartTick <= 0) {
if (!getServerLevel(this.rabbit).getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING)) {
return false;
}
this.canRaid = false;
this.wantsToRaid = this.rabbit.wantsMoreFood();
}
return super.canUse();
}
@Override
public boolean canContinueToUse() {
return this.canRaid && super.canContinueToUse();
}
@Override
public void tick() {
super.tick();
this.rabbit
.getLookControl()
.setLookAt(this.blockPos.getX() + 0.5, this.blockPos.getY() + 1, this.blockPos.getZ() + 0.5, 10.0F, this.rabbit.getMaxHeadXRot());
if (this.isReachedTarget()) {
Level level = this.rabbit.level();
BlockPos blockPos = this.blockPos.above();
BlockState blockState = level.getBlockState(blockPos);
Block block = blockState.getBlock();
if (this.canRaid && block instanceof CarrotBlock) {
int i = (Integer)blockState.getValue(CarrotBlock.AGE);
if (i == 0) {
level.setBlock(blockPos, Blocks.AIR.defaultBlockState(), 2);
level.destroyBlock(blockPos, true, this.rabbit);
} else {
level.setBlock(blockPos, blockState.setValue(CarrotBlock.AGE, i - 1), 2);
level.gameEvent(GameEvent.BLOCK_CHANGE, blockPos, Context.of(this.rabbit));
level.levelEvent(2001, blockPos, Block.getId(blockState));
}
this.rabbit.moreCarrotTicks = 40;
}
this.canRaid = false;
this.nextStartTick = 10;
}
}
@Override
protected boolean isValidTarget(LevelReader level, BlockPos pos) {
BlockState blockState = level.getBlockState(pos);
if (blockState.is(Blocks.FARMLAND) && this.wantsToRaid && !this.canRaid) {
blockState = level.getBlockState(pos.above());
if (blockState.getBlock() instanceof CarrotBlock && ((CarrotBlock)blockState.getBlock()).isMaxAge(blockState)) {
this.canRaid = true;
return true;
}
}
return false;
}
}
public static enum Variant implements StringRepresentable {
BROWN(0, "brown"),
WHITE(1, "white"),
BLACK(2, "black"),
WHITE_SPLOTCHED(3, "white_splotched"),
GOLD(4, "gold"),
SALT(5, "salt"),
EVIL(99, "evil");
public static final Rabbit.Variant DEFAULT = BROWN;
private static final IntFunction<Rabbit.Variant> BY_ID = ByIdMap.sparse(Rabbit.Variant::id, values(), DEFAULT);
public static final Codec<Rabbit.Variant> CODEC = StringRepresentable.fromEnum(Rabbit.Variant::values);
@Deprecated
public static final Codec<Rabbit.Variant> LEGACY_CODEC = Codec.INT.xmap(BY_ID::apply, Rabbit.Variant::id);
public static final StreamCodec<ByteBuf, Rabbit.Variant> STREAM_CODEC = ByteBufCodecs.idMapper(BY_ID, Rabbit.Variant::id);
final int id;
private final String name;
private Variant(final int id, final String name) {
this.id = id;
this.name = name;
}
@Override
public String getSerializedName() {
return this.name;
}
public int id() {
return this.id;
}
public static Rabbit.Variant byId(int id) {
return (Rabbit.Variant)BY_ID.apply(id);
}
}
}