Code/net/minecraft/world/entity/monster/Silverfish.java

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2025-07-01 06:20:03 +00:00
package net.minecraft.world.entity.monster;
import java.util.EnumSet;
import javax.annotation.Nullable;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Direction;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.sounds.SoundEvent;
import net.minecraft.sounds.SoundEvents;
import net.minecraft.tags.DamageTypeTags;
import net.minecraft.util.RandomSource;
import net.minecraft.world.damagesource.DamageSource;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.EntitySpawnReason;
import net.minecraft.world.entity.EntityType;
import net.minecraft.world.entity.ai.attributes.AttributeSupplier;
import net.minecraft.world.entity.ai.attributes.Attributes;
import net.minecraft.world.entity.ai.goal.ClimbOnTopOfPowderSnowGoal;
import net.minecraft.world.entity.ai.goal.FloatGoal;
import net.minecraft.world.entity.ai.goal.Goal;
import net.minecraft.world.entity.ai.goal.MeleeAttackGoal;
import net.minecraft.world.entity.ai.goal.RandomStrollGoal;
import net.minecraft.world.entity.ai.goal.target.HurtByTargetGoal;
import net.minecraft.world.entity.ai.goal.target.NearestAttackableTargetGoal;
import net.minecraft.world.entity.player.Player;
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.block.Block;
import net.minecraft.world.level.block.InfestedBlock;
import net.minecraft.world.level.block.state.BlockState;
public class Silverfish extends Monster {
@Nullable
private Silverfish.SilverfishWakeUpFriendsGoal friendsGoal;
public Silverfish(EntityType<? extends Silverfish> p_33523_, Level p_33524_) {
super(p_33523_, p_33524_);
}
@Override
protected void registerGoals() {
this.friendsGoal = new Silverfish.SilverfishWakeUpFriendsGoal(this);
this.goalSelector.addGoal(1, new FloatGoal(this));
this.goalSelector.addGoal(1, new ClimbOnTopOfPowderSnowGoal(this, this.level()));
this.goalSelector.addGoal(3, this.friendsGoal);
this.goalSelector.addGoal(4, new MeleeAttackGoal(this, 1.0, false));
this.goalSelector.addGoal(5, new Silverfish.SilverfishMergeWithStoneGoal(this));
this.targetSelector.addGoal(1, new HurtByTargetGoal(this).setAlertOthers());
this.targetSelector.addGoal(2, new NearestAttackableTargetGoal<>(this, Player.class, true));
}
public static AttributeSupplier.Builder createAttributes() {
return Monster.createMonsterAttributes().add(Attributes.MAX_HEALTH, 8.0).add(Attributes.MOVEMENT_SPEED, 0.25).add(Attributes.ATTACK_DAMAGE, 1.0);
}
@Override
protected Entity.MovementEmission getMovementEmission() {
return Entity.MovementEmission.EVENTS;
}
@Override
protected SoundEvent getAmbientSound() {
return SoundEvents.SILVERFISH_AMBIENT;
}
@Override
protected SoundEvent getHurtSound(DamageSource p_33549_) {
return SoundEvents.SILVERFISH_HURT;
}
@Override
protected SoundEvent getDeathSound() {
return SoundEvents.SILVERFISH_DEATH;
}
@Override
protected void playStepSound(BlockPos p_33543_, BlockState p_33544_) {
this.playSound(SoundEvents.SILVERFISH_STEP, 0.15F, 1.0F);
}
@Override
public boolean hurtServer(ServerLevel p_367867_, DamageSource p_363178_, float p_365184_) {
if (this.isInvulnerableTo(p_367867_, p_363178_)) {
return false;
} else {
if ((p_363178_.getEntity() != null || p_363178_.is(DamageTypeTags.ALWAYS_TRIGGERS_SILVERFISH)) && this.friendsGoal != null) {
this.friendsGoal.notifyHurt();
}
return super.hurtServer(p_367867_, p_363178_, p_365184_);
}
}
@Override
public void tick() {
this.yBodyRot = this.getYRot();
super.tick();
}
@Override
public void setYBodyRot(float p_33553_) {
this.setYRot(p_33553_);
super.setYBodyRot(p_33553_);
}
@Override
public float getWalkTargetValue(BlockPos p_33530_, LevelReader p_33531_) {
return InfestedBlock.isCompatibleHostBlock(p_33531_.getBlockState(p_33530_.below())) ? 10.0F : super.getWalkTargetValue(p_33530_, p_33531_);
}
public static boolean checkSilverfishSpawnRules(
EntityType<Silverfish> p_219077_, LevelAccessor p_219078_, EntitySpawnReason p_360856_, BlockPos p_219080_, RandomSource p_219081_
) {
if (!checkAnyLightMonsterSpawnRules(p_219077_, p_219078_, p_360856_, p_219080_, p_219081_)) {
return false;
} else if (EntitySpawnReason.isSpawner(p_360856_)) {
return true;
} else {
Player player = p_219078_.getNearestPlayer(p_219080_.getX() + 0.5, p_219080_.getY() + 0.5, p_219080_.getZ() + 0.5, 5.0, true);
return player == null;
}
}
static class SilverfishMergeWithStoneGoal extends RandomStrollGoal {
@Nullable
private Direction selectedDirection;
private boolean doMerge;
public SilverfishMergeWithStoneGoal(Silverfish p_33558_) {
super(p_33558_, 1.0, 10);
this.setFlags(EnumSet.of(Goal.Flag.MOVE));
}
@Override
public boolean canUse() {
if (this.mob.getTarget() != null) {
return false;
} else if (!this.mob.getNavigation().isDone()) {
return false;
} else {
RandomSource randomsource = this.mob.getRandom();
if (getServerLevel(this.mob).getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING) && randomsource.nextInt(reducedTickDelay(10)) == 0) {
this.selectedDirection = Direction.getRandom(randomsource);
BlockPos blockpos = BlockPos.containing(this.mob.getX(), this.mob.getY() + 0.5, this.mob.getZ())
.relative(this.selectedDirection);
BlockState blockstate = this.mob.level().getBlockState(blockpos);
if (InfestedBlock.isCompatibleHostBlock(blockstate)) {
this.doMerge = true;
return true;
}
}
this.doMerge = false;
return super.canUse();
}
}
@Override
public boolean canContinueToUse() {
return this.doMerge ? false : super.canContinueToUse();
}
@Override
public void start() {
if (!this.doMerge) {
super.start();
} else {
LevelAccessor levelaccessor = this.mob.level();
BlockPos blockpos = BlockPos.containing(this.mob.getX(), this.mob.getY() + 0.5, this.mob.getZ())
.relative(this.selectedDirection);
BlockState blockstate = levelaccessor.getBlockState(blockpos);
if (InfestedBlock.isCompatibleHostBlock(blockstate)) {
levelaccessor.setBlock(blockpos, InfestedBlock.infestedStateByHost(blockstate), 3);
this.mob.spawnAnim();
this.mob.discard();
}
}
}
}
static class SilverfishWakeUpFriendsGoal extends Goal {
private final Silverfish silverfish;
private int lookForFriends;
public SilverfishWakeUpFriendsGoal(Silverfish p_33565_) {
this.silverfish = p_33565_;
}
public void notifyHurt() {
if (this.lookForFriends == 0) {
this.lookForFriends = this.adjustedTickDelay(20);
}
}
@Override
public boolean canUse() {
return this.lookForFriends > 0;
}
@Override
public void tick() {
this.lookForFriends--;
if (this.lookForFriends <= 0) {
Level level = this.silverfish.level();
RandomSource randomsource = this.silverfish.getRandom();
BlockPos blockpos = this.silverfish.blockPosition();
for (int i = 0; i <= 5 && i >= -5; i = (i <= 0 ? 1 : 0) - i) {
for (int j = 0; j <= 10 && j >= -10; j = (j <= 0 ? 1 : 0) - j) {
for (int k = 0; k <= 10 && k >= -10; k = (k <= 0 ? 1 : 0) - k) {
BlockPos blockpos1 = blockpos.offset(j, i, k);
BlockState blockstate = level.getBlockState(blockpos1);
Block block = blockstate.getBlock();
if (block instanceof InfestedBlock) {
if (getServerLevel(level).getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING)) {
level.destroyBlock(blockpos1, true, this.silverfish);
} else {
level.setBlock(blockpos1, ((InfestedBlock)block).hostStateByInfested(level.getBlockState(blockpos1)), 3);
}
if (randomsource.nextBoolean()) {
return;
}
}
}
}
}
}
}
}
}