262 lines
8 KiB
Java
262 lines
8 KiB
Java
package net.minecraft.world.entity.ambient;
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import java.time.LocalDate;
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import java.time.temporal.ChronoField;
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import net.minecraft.core.BlockPos;
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import net.minecraft.network.syncher.EntityDataAccessor;
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import net.minecraft.network.syncher.EntityDataSerializers;
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import net.minecraft.network.syncher.SynchedEntityData;
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import net.minecraft.server.level.ServerLevel;
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import net.minecraft.sounds.SoundEvent;
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import net.minecraft.sounds.SoundEvents;
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import net.minecraft.tags.BlockTags;
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import net.minecraft.util.Mth;
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import net.minecraft.util.RandomSource;
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import net.minecraft.world.damagesource.DamageSource;
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import net.minecraft.world.entity.AnimationState;
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import net.minecraft.world.entity.Entity;
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import net.minecraft.world.entity.EntitySpawnReason;
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import net.minecraft.world.entity.EntityType;
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import net.minecraft.world.entity.Mob;
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import net.minecraft.world.entity.ai.attributes.AttributeSupplier;
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import net.minecraft.world.entity.ai.attributes.Attributes;
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import net.minecraft.world.entity.ai.targeting.TargetingConditions;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.level.LevelAccessor;
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import net.minecraft.world.level.block.state.BlockState;
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import net.minecraft.world.level.levelgen.Heightmap;
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import net.minecraft.world.level.storage.ValueInput;
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import net.minecraft.world.level.storage.ValueOutput;
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import net.minecraft.world.phys.Vec3;
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import org.jetbrains.annotations.Nullable;
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public class Bat extends AmbientCreature {
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public static final float FLAP_LENGTH_SECONDS = 0.5F;
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public static final float TICKS_PER_FLAP = 10.0F;
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private static final EntityDataAccessor<Byte> DATA_ID_FLAGS = SynchedEntityData.defineId(Bat.class, EntityDataSerializers.BYTE);
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private static final int FLAG_RESTING = 1;
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private static final TargetingConditions BAT_RESTING_TARGETING = TargetingConditions.forNonCombat().range(4.0);
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private static final byte DEFAULT_FLAGS = 0;
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public final AnimationState flyAnimationState = new AnimationState();
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public final AnimationState restAnimationState = new AnimationState();
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@Nullable
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private BlockPos targetPosition;
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public Bat(EntityType<? extends Bat> entityType, Level level) {
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super(entityType, level);
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if (!level.isClientSide) {
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this.setResting(true);
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}
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}
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@Override
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public boolean isFlapping() {
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return !this.isResting() && this.tickCount % 10.0F == 0.0F;
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}
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@Override
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protected void defineSynchedData(SynchedEntityData.Builder builder) {
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super.defineSynchedData(builder);
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builder.define(DATA_ID_FLAGS, (byte)0);
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}
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@Override
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protected float getSoundVolume() {
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return 0.1F;
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}
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@Override
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public float getVoicePitch() {
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return super.getVoicePitch() * 0.95F;
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}
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@Nullable
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@Override
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public SoundEvent getAmbientSound() {
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return this.isResting() && this.random.nextInt(4) != 0 ? null : SoundEvents.BAT_AMBIENT;
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}
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@Override
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protected SoundEvent getHurtSound(DamageSource damageSource) {
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return SoundEvents.BAT_HURT;
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}
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@Override
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protected SoundEvent getDeathSound() {
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return SoundEvents.BAT_DEATH;
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}
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@Override
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public boolean isPushable() {
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return false;
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}
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@Override
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protected void doPush(Entity entity) {
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}
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@Override
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protected void pushEntities() {
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}
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public static AttributeSupplier.Builder createAttributes() {
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return Mob.createMobAttributes().add(Attributes.MAX_HEALTH, 6.0);
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}
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public boolean isResting() {
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return (this.entityData.get(DATA_ID_FLAGS) & 1) != 0;
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}
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public void setResting(boolean isResting) {
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byte b = this.entityData.get(DATA_ID_FLAGS);
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if (isResting) {
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this.entityData.set(DATA_ID_FLAGS, (byte)(b | 1));
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} else {
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this.entityData.set(DATA_ID_FLAGS, (byte)(b & -2));
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}
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}
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@Override
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public void tick() {
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super.tick();
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if (this.isResting()) {
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this.setDeltaMovement(Vec3.ZERO);
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this.setPosRaw(this.getX(), Mth.floor(this.getY()) + 1.0 - this.getBbHeight(), this.getZ());
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} else {
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this.setDeltaMovement(this.getDeltaMovement().multiply(1.0, 0.6, 1.0));
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}
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this.setupAnimationStates();
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}
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@Override
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protected void customServerAiStep(ServerLevel level) {
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super.customServerAiStep(level);
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BlockPos blockPos = this.blockPosition();
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BlockPos blockPos2 = blockPos.above();
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if (this.isResting()) {
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boolean bl = this.isSilent();
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if (level.getBlockState(blockPos2).isRedstoneConductor(level, blockPos)) {
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if (this.random.nextInt(200) == 0) {
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this.yHeadRot = this.random.nextInt(360);
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}
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if (level.getNearestPlayer(BAT_RESTING_TARGETING, this) != null) {
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this.setResting(false);
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if (!bl) {
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level.levelEvent(null, 1025, blockPos, 0);
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}
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}
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} else {
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this.setResting(false);
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if (!bl) {
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level.levelEvent(null, 1025, blockPos, 0);
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}
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}
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} else {
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if (this.targetPosition != null && (!level.isEmptyBlock(this.targetPosition) || this.targetPosition.getY() <= level.getMinY())) {
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this.targetPosition = null;
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}
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if (this.targetPosition == null || this.random.nextInt(30) == 0 || this.targetPosition.closerToCenterThan(this.position(), 2.0)) {
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this.targetPosition = BlockPos.containing(
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this.getX() + this.random.nextInt(7) - this.random.nextInt(7),
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this.getY() + this.random.nextInt(6) - 2.0,
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this.getZ() + this.random.nextInt(7) - this.random.nextInt(7)
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);
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}
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double d = this.targetPosition.getX() + 0.5 - this.getX();
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double e = this.targetPosition.getY() + 0.1 - this.getY();
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double f = this.targetPosition.getZ() + 0.5 - this.getZ();
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Vec3 vec3 = this.getDeltaMovement();
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Vec3 vec32 = vec3.add((Math.signum(d) * 0.5 - vec3.x) * 0.1F, (Math.signum(e) * 0.7F - vec3.y) * 0.1F, (Math.signum(f) * 0.5 - vec3.z) * 0.1F);
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this.setDeltaMovement(vec32);
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float g = (float)(Mth.atan2(vec32.z, vec32.x) * 180.0F / (float)Math.PI) - 90.0F;
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float h = Mth.wrapDegrees(g - this.getYRot());
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this.zza = 0.5F;
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this.setYRot(this.getYRot() + h);
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if (this.random.nextInt(100) == 0 && level.getBlockState(blockPos2).isRedstoneConductor(level, blockPos2)) {
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this.setResting(true);
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}
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}
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}
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@Override
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protected Entity.MovementEmission getMovementEmission() {
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return Entity.MovementEmission.EVENTS;
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}
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@Override
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protected void checkFallDamage(double y, boolean onGround, BlockState state, BlockPos pos) {
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}
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@Override
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public boolean isIgnoringBlockTriggers() {
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return true;
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}
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@Override
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public boolean hurtServer(ServerLevel level, DamageSource damageSource, float amount) {
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if (this.isInvulnerableTo(level, damageSource)) {
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return false;
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} else {
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if (this.isResting()) {
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this.setResting(false);
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}
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return super.hurtServer(level, damageSource, amount);
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}
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}
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@Override
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protected void readAdditionalSaveData(ValueInput input) {
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super.readAdditionalSaveData(input);
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this.entityData.set(DATA_ID_FLAGS, input.getByteOr("BatFlags", (byte)0));
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}
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@Override
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protected void addAdditionalSaveData(ValueOutput output) {
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super.addAdditionalSaveData(output);
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output.putByte("BatFlags", this.entityData.get(DATA_ID_FLAGS));
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}
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public static boolean checkBatSpawnRules(
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EntityType<Bat> entityType, LevelAccessor level, EntitySpawnReason spawnReason, BlockPos pos, RandomSource randomSource
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) {
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if (pos.getY() >= level.getHeightmapPos(Heightmap.Types.WORLD_SURFACE, pos).getY()) {
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return false;
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} else {
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int i = level.getMaxLocalRawBrightness(pos);
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int j = 4;
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if (isHalloween()) {
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j = 7;
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} else if (randomSource.nextBoolean()) {
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return false;
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}
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if (i > randomSource.nextInt(j)) {
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return false;
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} else {
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return !level.getBlockState(pos.below()).is(BlockTags.BATS_SPAWNABLE_ON) ? false : checkMobSpawnRules(entityType, level, spawnReason, pos, randomSource);
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}
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}
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}
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private static boolean isHalloween() {
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LocalDate localDate = LocalDate.now();
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int i = localDate.get(ChronoField.DAY_OF_MONTH);
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int j = localDate.get(ChronoField.MONTH_OF_YEAR);
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return j == 10 && i >= 20 || j == 11 && i <= 3;
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}
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private void setupAnimationStates() {
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if (this.isResting()) {
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this.flyAnimationState.stop();
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this.restAnimationState.startIfStopped(this.tickCount);
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} else {
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this.restAnimationState.stop();
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this.flyAnimationState.startIfStopped(this.tickCount);
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}
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}
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}
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