minecraft-src/net/minecraft/world/entity/monster/Slime.java
2025-07-04 02:00:41 +03:00

559 lines
17 KiB
Java

package net.minecraft.world.entity.monster;
import com.google.common.annotations.VisibleForTesting;
import java.util.EnumSet;
import net.minecraft.core.BlockPos;
import net.minecraft.core.particles.ParticleOptions;
import net.minecraft.core.particles.ParticleTypes;
import net.minecraft.nbt.CompoundTag;
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.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.util.Mth;
import net.minecraft.util.RandomSource;
import net.minecraft.world.Difficulty;
import net.minecraft.world.DifficultyInstance;
import net.minecraft.world.damagesource.DamageSource;
import net.minecraft.world.effect.MobEffects;
import net.minecraft.world.entity.ConversionParams;
import net.minecraft.world.entity.ConversionType;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.EntityDimensions;
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.Pose;
import net.minecraft.world.entity.SpawnGroupData;
import net.minecraft.world.entity.ai.attributes.Attributes;
import net.minecraft.world.entity.ai.control.MoveControl;
import net.minecraft.world.entity.ai.goal.Goal;
import net.minecraft.world.entity.ai.goal.target.NearestAttackableTargetGoal;
import net.minecraft.world.entity.animal.IronGolem;
import net.minecraft.world.entity.player.Player;
import net.minecraft.world.item.enchantment.EnchantmentHelper;
import net.minecraft.world.level.ChunkPos;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.LevelAccessor;
import net.minecraft.world.level.ServerLevelAccessor;
import net.minecraft.world.level.WorldGenLevel;
import net.minecraft.world.level.levelgen.WorldgenRandom;
import net.minecraft.world.phys.Vec3;
import net.minecraft.world.scores.PlayerTeam;
import org.jetbrains.annotations.Nullable;
public class Slime extends Mob implements Enemy {
private static final EntityDataAccessor<Integer> ID_SIZE = SynchedEntityData.defineId(Slime.class, EntityDataSerializers.INT);
public static final int MIN_SIZE = 1;
public static final int MAX_SIZE = 127;
public static final int MAX_NATURAL_SIZE = 4;
public float targetSquish;
public float squish;
public float oSquish;
private boolean wasOnGround;
public Slime(EntityType<? extends Slime> entityType, Level level) {
super(entityType, level);
this.fixupDimensions();
this.moveControl = new Slime.SlimeMoveControl(this);
}
@Override
protected void registerGoals() {
this.goalSelector.addGoal(1, new Slime.SlimeFloatGoal(this));
this.goalSelector.addGoal(2, new Slime.SlimeAttackGoal(this));
this.goalSelector.addGoal(3, new Slime.SlimeRandomDirectionGoal(this));
this.goalSelector.addGoal(5, new Slime.SlimeKeepOnJumpingGoal(this));
this.targetSelector
.addGoal(
1, new NearestAttackableTargetGoal(this, Player.class, 10, true, false, (livingEntity, serverLevel) -> Math.abs(livingEntity.getY() - this.getY()) <= 4.0)
);
this.targetSelector.addGoal(3, new NearestAttackableTargetGoal(this, IronGolem.class, true));
}
@Override
public SoundSource getSoundSource() {
return SoundSource.HOSTILE;
}
@Override
protected void defineSynchedData(Builder builder) {
super.defineSynchedData(builder);
builder.define(ID_SIZE, 1);
}
@VisibleForTesting
public void setSize(int size, boolean resetHealth) {
int i = Mth.clamp(size, 1, 127);
this.entityData.set(ID_SIZE, i);
this.reapplyPosition();
this.refreshDimensions();
this.getAttribute(Attributes.MAX_HEALTH).setBaseValue(i * i);
this.getAttribute(Attributes.MOVEMENT_SPEED).setBaseValue(0.2F + 0.1F * i);
this.getAttribute(Attributes.ATTACK_DAMAGE).setBaseValue(i);
if (resetHealth) {
this.setHealth(this.getMaxHealth());
}
this.xpReward = i;
}
/**
* Returns the size of the slime.
*/
public int getSize() {
return this.entityData.get(ID_SIZE);
}
@Override
public void addAdditionalSaveData(CompoundTag compound) {
super.addAdditionalSaveData(compound);
compound.putInt("Size", this.getSize() - 1);
compound.putBoolean("wasOnGround", this.wasOnGround);
}
@Override
public void readAdditionalSaveData(CompoundTag compound) {
this.setSize(compound.getInt("Size") + 1, false);
super.readAdditionalSaveData(compound);
this.wasOnGround = compound.getBoolean("wasOnGround");
}
public boolean isTiny() {
return this.getSize() <= 1;
}
protected ParticleOptions getParticleType() {
return ParticleTypes.ITEM_SLIME;
}
@Override
protected boolean shouldDespawnInPeaceful() {
return this.getSize() > 0;
}
@Override
public void tick() {
this.oSquish = this.squish;
this.squish = this.squish + (this.targetSquish - this.squish) * 0.5F;
super.tick();
if (this.onGround() && !this.wasOnGround) {
float f = this.getDimensions(this.getPose()).width() * 2.0F;
float g = f / 2.0F;
for (int i = 0; i < f * 16.0F; i++) {
float h = this.random.nextFloat() * (float) (Math.PI * 2);
float j = this.random.nextFloat() * 0.5F + 0.5F;
float k = Mth.sin(h) * g * j;
float l = Mth.cos(h) * g * j;
this.level().addParticle(this.getParticleType(), this.getX() + k, this.getY(), this.getZ() + l, 0.0, 0.0, 0.0);
}
this.playSound(this.getSquishSound(), this.getSoundVolume(), ((this.random.nextFloat() - this.random.nextFloat()) * 0.2F + 1.0F) / 0.8F);
this.targetSquish = -0.5F;
} else if (!this.onGround() && this.wasOnGround) {
this.targetSquish = 1.0F;
}
this.wasOnGround = this.onGround();
this.decreaseSquish();
}
protected void decreaseSquish() {
this.targetSquish *= 0.6F;
}
/**
* Gets the amount of time the slime needs to wait between jumps.
*/
protected int getJumpDelay() {
return this.random.nextInt(20) + 10;
}
@Override
public void refreshDimensions() {
double d = this.getX();
double e = this.getY();
double f = this.getZ();
super.refreshDimensions();
this.setPos(d, e, f);
}
@Override
public void onSyncedDataUpdated(EntityDataAccessor<?> dataAccessor) {
if (ID_SIZE.equals(dataAccessor)) {
this.refreshDimensions();
this.setYRot(this.yHeadRot);
this.yBodyRot = this.yHeadRot;
if (this.isInWater() && this.random.nextInt(20) == 0) {
this.doWaterSplashEffect();
}
}
super.onSyncedDataUpdated(dataAccessor);
}
@Override
public EntityType<? extends Slime> getType() {
return (EntityType<? extends Slime>)super.getType();
}
@Override
public void remove(Entity.RemovalReason reason) {
int i = this.getSize();
if (!this.level().isClientSide && i > 1 && this.isDeadOrDying()) {
float f = this.getDimensions(this.getPose()).width();
float g = f / 2.0F;
int j = i / 2;
int k = 2 + this.random.nextInt(3);
PlayerTeam playerTeam = this.getTeam();
for (int l = 0; l < k; l++) {
float h = (l % 2 - 0.5F) * g;
float m = (l / 2 - 0.5F) * g;
this.convertTo(this.getType(), new ConversionParams(ConversionType.SPLIT_ON_DEATH, false, false, playerTeam), EntitySpawnReason.TRIGGERED, slime -> {
slime.setSize(j, true);
slime.moveTo(this.getX() + h, this.getY() + 0.5, this.getZ() + m, this.random.nextFloat() * 360.0F, 0.0F);
});
}
}
super.remove(reason);
}
@Override
public void push(Entity entity) {
super.push(entity);
if (entity instanceof IronGolem && this.isDealsDamage()) {
this.dealDamage((LivingEntity)entity);
}
}
@Override
public void playerTouch(Player player) {
if (this.isDealsDamage()) {
this.dealDamage(player);
}
}
protected void dealDamage(LivingEntity livingEntity) {
if (this.level() instanceof ServerLevel serverLevel && this.isAlive() && this.isWithinMeleeAttackRange(livingEntity) && this.hasLineOfSight(livingEntity)) {
DamageSource damageSource = this.damageSources().mobAttack(this);
if (livingEntity.hurtServer(serverLevel, damageSource, this.getAttackDamage())) {
this.playSound(SoundEvents.SLIME_ATTACK, 1.0F, (this.random.nextFloat() - this.random.nextFloat()) * 0.2F + 1.0F);
EnchantmentHelper.doPostAttackEffects(serverLevel, livingEntity, damageSource);
}
}
}
@Override
protected Vec3 getPassengerAttachmentPoint(Entity entity, EntityDimensions dimensions, float partialTick) {
return new Vec3(0.0, dimensions.height() - 0.015625 * this.getSize() * partialTick, 0.0);
}
/**
* Indicates weather the slime is able to damage the player (based upon the slime's size)
*/
protected boolean isDealsDamage() {
return !this.isTiny() && this.isEffectiveAi();
}
protected float getAttackDamage() {
return (float)this.getAttributeValue(Attributes.ATTACK_DAMAGE);
}
@Override
protected SoundEvent getHurtSound(DamageSource damageSource) {
return this.isTiny() ? SoundEvents.SLIME_HURT_SMALL : SoundEvents.SLIME_HURT;
}
@Override
protected SoundEvent getDeathSound() {
return this.isTiny() ? SoundEvents.SLIME_DEATH_SMALL : SoundEvents.SLIME_DEATH;
}
protected SoundEvent getSquishSound() {
return this.isTiny() ? SoundEvents.SLIME_SQUISH_SMALL : SoundEvents.SLIME_SQUISH;
}
public static boolean checkSlimeSpawnRules(
EntityType<Slime> entityType, LevelAccessor levelAccessor, EntitySpawnReason entitySpawnReason, BlockPos blockPos, RandomSource randomSource
) {
if (levelAccessor.getDifficulty() != Difficulty.PEACEFUL) {
if (EntitySpawnReason.isSpawner(entitySpawnReason)) {
return checkMobSpawnRules(entityType, levelAccessor, entitySpawnReason, blockPos, randomSource);
}
if (levelAccessor.getBiome(blockPos).is(BiomeTags.ALLOWS_SURFACE_SLIME_SPAWNS)
&& blockPos.getY() > 50
&& blockPos.getY() < 70
&& randomSource.nextFloat() < 0.5F
&& randomSource.nextFloat() < levelAccessor.getMoonBrightness()
&& levelAccessor.getMaxLocalRawBrightness(blockPos) <= randomSource.nextInt(8)) {
return checkMobSpawnRules(entityType, levelAccessor, entitySpawnReason, blockPos, randomSource);
}
if (!(levelAccessor instanceof WorldGenLevel)) {
return false;
}
ChunkPos chunkPos = new ChunkPos(blockPos);
boolean bl = WorldgenRandom.seedSlimeChunk(chunkPos.x, chunkPos.z, ((WorldGenLevel)levelAccessor).getSeed(), 987234911L).nextInt(10) == 0;
if (randomSource.nextInt(10) == 0 && bl && blockPos.getY() < 40) {
return checkMobSpawnRules(entityType, levelAccessor, entitySpawnReason, blockPos, randomSource);
}
}
return false;
}
@Override
protected float getSoundVolume() {
return 0.4F * this.getSize();
}
@Override
public int getMaxHeadXRot() {
return 0;
}
/**
* Returns {@code true} if the slime makes a sound when it jumps (based upon the slime's size)
*/
protected boolean doPlayJumpSound() {
return this.getSize() > 0;
}
@Override
public void jumpFromGround() {
Vec3 vec3 = this.getDeltaMovement();
this.setDeltaMovement(vec3.x, this.getJumpPower(), vec3.z);
this.hasImpulse = true;
}
@Nullable
@Override
public SpawnGroupData finalizeSpawn(
ServerLevelAccessor serverLevelAccessor, DifficultyInstance difficultyInstance, EntitySpawnReason entitySpawnReason, @Nullable SpawnGroupData spawnGroupData
) {
RandomSource randomSource = serverLevelAccessor.getRandom();
int i = randomSource.nextInt(3);
if (i < 2 && randomSource.nextFloat() < 0.5F * difficultyInstance.getSpecialMultiplier()) {
i++;
}
int j = 1 << i;
this.setSize(j, true);
return super.finalizeSpawn(serverLevelAccessor, difficultyInstance, entitySpawnReason, spawnGroupData);
}
float getSoundPitch() {
float f = this.isTiny() ? 1.4F : 0.8F;
return ((this.random.nextFloat() - this.random.nextFloat()) * 0.2F + 1.0F) * f;
}
protected SoundEvent getJumpSound() {
return this.isTiny() ? SoundEvents.SLIME_JUMP_SMALL : SoundEvents.SLIME_JUMP;
}
@Override
public EntityDimensions getDefaultDimensions(Pose pose) {
return super.getDefaultDimensions(pose).scale(this.getSize());
}
static class SlimeAttackGoal extends Goal {
private final Slime slime;
private int growTiredTimer;
public SlimeAttackGoal(Slime slime) {
this.slime = slime;
this.setFlags(EnumSet.of(Goal.Flag.LOOK));
}
@Override
public boolean canUse() {
LivingEntity livingEntity = this.slime.getTarget();
if (livingEntity == null) {
return false;
} else {
return !this.slime.canAttack(livingEntity) ? false : this.slime.getMoveControl() instanceof Slime.SlimeMoveControl;
}
}
@Override
public void start() {
this.growTiredTimer = reducedTickDelay(300);
super.start();
}
@Override
public boolean canContinueToUse() {
LivingEntity livingEntity = this.slime.getTarget();
if (livingEntity == null) {
return false;
} else {
return !this.slime.canAttack(livingEntity) ? false : --this.growTiredTimer > 0;
}
}
@Override
public boolean requiresUpdateEveryTick() {
return true;
}
@Override
public void tick() {
LivingEntity livingEntity = this.slime.getTarget();
if (livingEntity != null) {
this.slime.lookAt(livingEntity, 10.0F, 10.0F);
}
if (this.slime.getMoveControl() instanceof Slime.SlimeMoveControl slimeMoveControl) {
slimeMoveControl.setDirection(this.slime.getYRot(), this.slime.isDealsDamage());
}
}
}
static class SlimeFloatGoal extends Goal {
private final Slime slime;
public SlimeFloatGoal(Slime slime) {
this.slime = slime;
this.setFlags(EnumSet.of(Goal.Flag.JUMP, Goal.Flag.MOVE));
slime.getNavigation().setCanFloat(true);
}
@Override
public boolean canUse() {
return (this.slime.isInWater() || this.slime.isInLava()) && this.slime.getMoveControl() instanceof Slime.SlimeMoveControl;
}
@Override
public boolean requiresUpdateEveryTick() {
return true;
}
@Override
public void tick() {
if (this.slime.getRandom().nextFloat() < 0.8F) {
this.slime.getJumpControl().jump();
}
if (this.slime.getMoveControl() instanceof Slime.SlimeMoveControl slimeMoveControl) {
slimeMoveControl.setWantedMovement(1.2);
}
}
}
static class SlimeKeepOnJumpingGoal extends Goal {
private final Slime slime;
public SlimeKeepOnJumpingGoal(Slime slime) {
this.slime = slime;
this.setFlags(EnumSet.of(Goal.Flag.JUMP, Goal.Flag.MOVE));
}
@Override
public boolean canUse() {
return !this.slime.isPassenger();
}
@Override
public void tick() {
if (this.slime.getMoveControl() instanceof Slime.SlimeMoveControl slimeMoveControl) {
slimeMoveControl.setWantedMovement(1.0);
}
}
}
static class SlimeMoveControl extends MoveControl {
private float yRot;
private int jumpDelay;
private final Slime slime;
private boolean isAggressive;
public SlimeMoveControl(Slime slime) {
super(slime);
this.slime = slime;
this.yRot = 180.0F * slime.getYRot() / (float) Math.PI;
}
public void setDirection(float yRot, boolean aggressive) {
this.yRot = yRot;
this.isAggressive = aggressive;
}
public void setWantedMovement(double speed) {
this.speedModifier = speed;
this.operation = MoveControl.Operation.MOVE_TO;
}
@Override
public void tick() {
this.mob.setYRot(this.rotlerp(this.mob.getYRot(), this.yRot, 90.0F));
this.mob.yHeadRot = this.mob.getYRot();
this.mob.yBodyRot = this.mob.getYRot();
if (this.operation != MoveControl.Operation.MOVE_TO) {
this.mob.setZza(0.0F);
} else {
this.operation = MoveControl.Operation.WAIT;
if (this.mob.onGround()) {
this.mob.setSpeed((float)(this.speedModifier * this.mob.getAttributeValue(Attributes.MOVEMENT_SPEED)));
if (this.jumpDelay-- <= 0) {
this.jumpDelay = this.slime.getJumpDelay();
if (this.isAggressive) {
this.jumpDelay /= 3;
}
this.slime.getJumpControl().jump();
if (this.slime.doPlayJumpSound()) {
this.slime.playSound(this.slime.getJumpSound(), this.slime.getSoundVolume(), this.slime.getSoundPitch());
}
} else {
this.slime.xxa = 0.0F;
this.slime.zza = 0.0F;
this.mob.setSpeed(0.0F);
}
} else {
this.mob.setSpeed((float)(this.speedModifier * this.mob.getAttributeValue(Attributes.MOVEMENT_SPEED)));
}
}
}
}
static class SlimeRandomDirectionGoal extends Goal {
private final Slime slime;
private float chosenDegrees;
private int nextRandomizeTime;
public SlimeRandomDirectionGoal(Slime slime) {
this.slime = slime;
this.setFlags(EnumSet.of(Goal.Flag.LOOK));
}
@Override
public boolean canUse() {
return this.slime.getTarget() == null
&& (this.slime.onGround() || this.slime.isInWater() || this.slime.isInLava() || this.slime.hasEffect(MobEffects.LEVITATION))
&& this.slime.getMoveControl() instanceof Slime.SlimeMoveControl;
}
@Override
public void tick() {
if (--this.nextRandomizeTime <= 0) {
this.nextRandomizeTime = this.adjustedTickDelay(40 + this.slime.getRandom().nextInt(60));
this.chosenDegrees = this.slime.getRandom().nextInt(360);
}
if (this.slime.getMoveControl() instanceof Slime.SlimeMoveControl slimeMoveControl) {
slimeMoveControl.setDirection(this.chosenDegrees, false);
}
}
}
}