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"rust_output_sha256": "73f8200591b6331c70aa85f2d2f7e7d3fded984a5f39a17962dc33dc34017c68", + "references": [ + { + "side": "client", + "jar_sha256": "4508d006323f24fa02876310c192d739af56516eb259000ac50f0909a68c9a2d", + "output_sha256": "73f8200591b6331c70aa85f2d2f7e7d3fded984a5f39a17962dc33dc34017c68", + "matched_output_lines": 410880 + }, + { + "side": "server", + "jar_sha256": "a362163eec5d1612d520772bc16e5b39c09e3b234fdc045f56bf544284ee8ae6", + "output_sha256": "73f8200591b6331c70aa85f2d2f7e7d3fded984a5f39a17962dc33dc34017c68", + "matched_output_lines": 410880 + } + ], + "scope": "Actual Player and ServerPlayer hurtServer methods on ServerPlayer receivers through native LivingEntity dispatch. Ability/invulnerability ordering, shoulder removal, three difficulty queries, PvP player/arrow-owner gates, repeated hits, non-finite values and callback failures. Native downstream living dispatch uses controlled inner damage/blocking/effects/death services and empty victim criterion listeners. Rules/source registries, actual PvP team permissions, successful totems, attacker server-player criteria and complete player lifecycle remain pending." +} diff --git a/crates/horizon-world/examples/player_hurt_fixture.rs b/crates/horizon-world/examples/player_hurt_fixture.rs new file mode 100644 index 000000000..54a5ed5e4 --- /dev/null +++ b/crates/horizon-world/examples/player_hurt_fixture.rs @@ -0,0 +1,313 @@ +use horizon_world::living_hurt::{HurtState, HurtTag, HurtWorld}; +use horizon_world::{ + food::Difficulty, + player_hurt::{ + CausingEntity, PlayerHurtWorld, ServerPlayerHurtWorld, player_hurt_server, + server_player_hurt_server, + }, +}; +use serde_json::Value; +use std::{ + fs, + io::{self, Write}, + path::Path, +}; +fn single(v: &Value) -> f32 { + f32::from_bits(u32::from_str_radix(v.as_str().unwrap(), 16).unwrap()) +} +fn bits(v: f32) -> u32 { + if v.is_nan() { + f32::NAN.to_bits() + } else { + v.to_bits() + } +} +fn state(s: &HurtState<()>) -> String { + format!( + "{} {} {:08x} {} {} {} {}", + s.no_action_time, + s.cooldown, + bits(s.last_hurt), + s.hurt_duration, + s.hurt_time, + s.last_source.is_some(), + s.last_stamp + ) +} +struct Env<'a> { + out: &'a mut dyn Write, + op: &'a Value, + calls: i64, + hit: bool, + recorded: f32, + player: bool, + difficulty_calls: usize, +} +impl Env<'_> { + fn flag(&self, n: &str) -> bool { + self.op[n].as_bool().unwrap() + } + fn event(&mut self, s: &str) -> io::Result<()> { + writeln!(self.out, "{s}")?; + let n = self.calls; + self.calls += 1; + if n == self.op["fail"].as_i64().unwrap() { + Err(io::Error::other("injected hurt callback failure")) + } else { + Ok(()) + } + } +} +impl HurtWorld for Env<'_> { + type Error = io::Error; + type Source = (); + type UseItem = bool; + type Blocking = (); + type Sound = (); + fn source(&self) {} + fn is_server_player(&self) -> bool { + self.player + } + fn invulnerable(&mut self, _: &mut HurtState<()>) -> io::Result { + self.event("invulnerable")?; + Ok(self.flag("invulnerable")) + } + fn fire_resistance(&mut self, _: &mut HurtState<()>) -> io::Result { + self.event("fire-resistance")?; + Ok(self.flag("fire_resistance")) + } + fn sleeping(&mut self, _: &mut HurtState<()>) -> io::Result { + self.event("sleeping")?; + Ok(self.flag("sleeping")) + } + fn freeze_hurts_extra(&mut self, _: &mut HurtState<()>) -> io::Result { + self.event("freeze-extra")?; + Ok(self.flag("freeze_extra")) + } + fn stop_sleeping(&mut self, _: &mut HurtState<()>) -> io::Result<()> { + self.event("wake") + } + fn resolve_mob(&mut self, _: &mut HurtState<()>) -> io::Result<()> { + self.event("resolve-mob") + } + fn resolve_player(&mut self, _: &mut HurtState<()>) -> io::Result<()> { + self.event("resolve-player") + } + fn broadcast_damage(&mut self, _: &mut HurtState<()>) -> io::Result<()> { + self.event("broadcast") + } + fn mark_hurt(&mut self, _: &mut HurtState<()>) -> io::Result<()> { + self.event("mark") + } + fn secondary_sound(&mut self, _: &mut HurtState<()>) -> io::Result<()> { + self.event("thorns") + } + fn die(&mut self, _: &mut HurtState<()>) -> io::Result<()> { + self.event("die") + } + fn hurt_sound(&mut self, _: &mut HurtState<()>) -> io::Result<()> { + self.event("hurt-sound") + } + + fn dead_or_dying(&mut self, _: &mut HurtState<()>) -> io::Result { + self.event("dead")?; + Ok(self.flag(if self.hit { + "dead_after" + } else { + "dead_before" + })) + } + fn tag(&mut self, _: &mut HurtState<()>, tag: HurtTag) -> io::Result { + let n = match tag { + HurtTag::Fire => "fire", + HurtTag::Freezing => "freezing", + HurtTag::DamagesHelmet => "damages_helmet", + HurtTag::BypassesCooldown => "bypasses_cooldown", + HurtTag::NoImpact => "no_impact", + HurtTag::NoKnockback => "no_knockback", + }; + self.event(&format!("tag {n}"))?; + Ok(self.flag(n)) + } + fn use_item(&mut self, _: &mut HurtState<()>) -> io::Result { + self.event("use-item")?; + Ok(self.flag("component")) + } + fn apply_blocking(&mut self, _: &mut HurtState<()>, v: f32) -> io::Result { + self.event(&format!("blocking {:08x}", bits(v)))?; + Ok(single(&self.op["blocked"])) + } + fn helmet_empty(&mut self, _: &mut HurtState<()>) -> io::Result { + self.event("helmet")?; + Ok(!self.flag("helmet")) + } + fn hurt_helmet(&mut self, _: &mut HurtState<()>, v: f32) -> io::Result<()> { + self.event(&format!("hurt-helmet {:08x}", bits(v))) + } + fn actually_hurt(&mut self, s: &mut HurtState<()>, v: f32) -> io::Result<()> { + self.event(&format!("hurt {:08x} {}", bits(v), state(s)))?; + self.hit = true; + self.recorded = v; + if self.flag("mutate_hit") { + s.cooldown = self.op["hit_cooldown"].as_i64().unwrap() as i32; + s.last_hurt = single(&self.op["hit_last"]); + s.hurt_duration = self.op["hit_duration"].as_i64().unwrap() as i32; + s.hurt_time = self.op["hit_time"].as_i64().unwrap() as i32; + } + Ok(()) + } + fn blocking_component(&mut self, v: bool) -> Option<()> { + v.then_some(()) + } + fn on_blocked(&mut self, _: &mut HurtState<()>, _: ()) -> io::Result<()> { + Ok(()) + } + fn knockback(&mut self, _: &mut HurtState<()>, v: f32, b: bool) -> io::Result<()> { + self.event(&format!("knockback {:08x} {b}", bits(v))) + } + fn death_protection(&mut self, _: &mut HurtState<()>) -> io::Result { + self.event("tag bypasses_invulnerability")?; + if !self.flag("bypasses_invulnerability") { + self.event("hand 0")?; + self.event("hand 1")?; + } + Ok(false) + } + fn death_sound(&mut self, _: &mut HurtState<()>) -> io::Result<()> { + self.event("death-sound") + } + fn make_sound(&mut self, _: &mut HurtState<()>, _: ()) -> io::Result<()> { + self.event("make-sound") + } + fn game_time(&mut self, _: &mut HurtState<()>) -> io::Result { + self.event("level")?; + self.event("game-time")?; + Ok(self.op["game_time"].as_i64().unwrap()) + } + fn effects_on_hurt(&mut self, _: &mut HurtState<()>, v: f32) -> io::Result<()> { + self.event("effects")?; + for i in 0..self.op["effects"].as_u64().unwrap() { + self.event(&format!("effect {i} {:08x}", bits(v)))?; + } + Ok(()) + } + fn player_hurt_criterion( + &mut self, + _: &mut HurtState<()>, + _: f32, + _: f32, + _: bool, + ) -> io::Result<()> { + self.event("criterion") + } + fn award_blocked(&mut self, _: &mut HurtState<()>, v: i32) -> io::Result<()> { + self.event(&format!("blocked-stat {v}")) + } + fn attacker_criterion( + &mut self, + _: &mut HurtState<()>, + _: f32, + _: f32, + _: bool, + ) -> io::Result<()> { + self.event("attacker") + } +} +impl PlayerHurtWorld for Env<'_> { + fn ability_invulnerable(&self) -> bool { + self.flag("ability_invulnerable") + } + fn bypasses_invulnerability(&mut self, _: &mut HurtState<()>) -> io::Result { + self.event("tag bypasses_invulnerability")?; + Ok(self.flag("bypasses_invulnerability")) + } + fn remove_shoulders(&mut self, _: &mut HurtState<()>) -> io::Result<()> { + self.event("shoulders") + } + fn scales_with_difficulty(&mut self, _: &mut HurtState<()>) -> io::Result { + self.event("scales")?; + Ok(self.flag("scales")) + } + fn difficulty(&mut self, _: &mut HurtState<()>) -> io::Result { + self.event("difficulty")?; + let v = self.op["difficulties"][self.difficulty_calls] + .as_u64() + .unwrap(); + self.difficulty_calls += 1; + Ok([ + Difficulty::Peaceful, + Difficulty::Easy, + Difficulty::Normal, + Difficulty::Hard, + ][v as usize]) + } +} +impl ServerPlayerHurtWorld for Env<'_> { + type Player = (); + type Arrow = (); + fn causing_entity(&mut self, _: &mut HurtState<()>) -> io::Result> { + self.event("attacker")?; + Ok(match self.op["attacker"].as_u64().unwrap() { + 0 | 1 => CausingEntity::Other, + 2 => CausingEntity::Player(()), + 3 => CausingEntity::Arrow(()), + _ => panic!("attacker"), + }) + } + fn arrow_player_owner(&mut self, _: &mut HurtState<()>, _: ()) -> io::Result> { + self.event("owner")?; + Ok((self.op["owner"] == 1).then_some(())) + } + fn can_harm_player(&mut self, _: &mut HurtState<()>, _: ()) -> io::Result { + self.event("can-harm")?; + Ok(self.flag("can_harm")) + } +} +fn main() -> Result<(), Box> { + let arg = std::env::args().nth(1).unwrap(); + let dir = Path::new(&arg); + let mut out = io::BufWriter::new(fs::File::create(dir.join("rust.txt"))?); + for line in fs::read_to_string(dir.join("inputs.txt"))?.lines() { + let f: Value = serde_json::from_str(line)?; + let mut s = HurtState { + no_action_time: f["no_action"].as_i64().unwrap() as i32, + cooldown: f["cooldown"].as_i64().unwrap() as i32, + last_hurt: single(&f["last_hurt"]), + hurt_duration: f["duration"].as_i64().unwrap() as i32, + hurt_time: f["time"].as_i64().unwrap() as i32, + last_source: f["source"].as_bool().unwrap().then_some(()), + last_stamp: f["stamp"].as_i64().unwrap(), + }; + let mut recorded = 0.0; + for op in f["ops"].as_array().unwrap() { + let mut e = Env { + out: &mut out, + op, + calls: 0, + hit: false, + recorded, + player: true, + difficulty_calls: 0, + }; + let result = if f["server"].as_bool().unwrap() { + server_player_hurt_server(&mut s, &mut e, single(&op["damage"])) + } else { + player_hurt_server(&mut s, &mut e, single(&op["damage"])) + }; + match result { + Ok(v) => writeln!(e.out, "bool {v}\nresult ok")?, + Err(_) => writeln!(e.out, "result error")?, + }; + recorded = e.recorded; + writeln!( + e.out, + "state {} {:08x} {} {}", + state(&s), + bits(recorded), + e.hit, + e.calls + )?; + } + } + Ok(()) +} diff --git a/crates/horizon-world/src/lib.rs b/crates/horizon-world/src/lib.rs index 42418a8dc..07fa28f3a 100644 --- a/crates/horizon-world/src/lib.rs +++ b/crates/horizon-world/src/lib.rs @@ -58,6 +58,7 @@ pub mod piston_movement; pub mod piston_shape; pub mod player_food; pub mod player_health; +pub mod player_hurt; pub mod player_travel; pub mod powder_snow_collision; pub mod region; diff --git a/crates/horizon-world/src/player_hurt.rs b/crates/horizon-world/src/player_hurt.rs new file mode 100644 index 000000000..bdaa8992d --- /dev/null +++ b/crates/horizon-world/src/player_hurt.rs @@ -0,0 +1,108 @@ +//! Player difficulty/ability gates and server PvP dispatch before living hurt. +use crate::{ + food::Difficulty, + living_hurt::{self, HurtState, HurtWorld}, +}; +pub trait PlayerHurtWorld: HurtWorld { + fn ability_invulnerable(&self) -> bool; + fn bypasses_invulnerability( + &mut self, + s: &mut HurtState, + ) -> Result; + fn remove_shoulders(&mut self, s: &mut HurtState) -> Result<(), Self::Error>; + fn scales_with_difficulty( + &mut self, + s: &mut HurtState, + ) -> Result; + fn difficulty(&mut self, s: &mut HurtState) -> Result; +} +fn min(a: f32, b: f32) -> f32 { + if a.is_nan() || b.is_nan() { + f32::NAN + } else if a == 0.0 && b == 0.0 { + f32::from_bits(a.to_bits() | b.to_bits()) + } else { + a.min(b) + } +} +pub fn player_hurt_server( + s: &mut HurtState, + w: &mut W, + mut damage: f32, +) -> Result { + if w.invulnerable(s)? { + return Ok(false); + } + if w.ability_invulnerable() && !w.bypasses_invulnerability(s)? { + return Ok(false); + } + s.no_action_time = 0; + if w.dead_or_dying(s)? { + return Ok(false); + } + w.remove_shoulders(s)?; + if w.scales_with_difficulty(s)? { + if w.difficulty(s)? == Difficulty::Peaceful { + damage = 0.0; + } + if w.difficulty(s)? == Difficulty::Easy { + damage = min(damage / 2.0 + 1.0, damage); + } + if w.difficulty(s)? == Difficulty::Hard { + damage = damage * 3.0 / 2.0; + } + } + if damage == 0.0 { + return Ok(false); + } + living_hurt::hurt_server(s, w, damage) +} +#[derive(Clone, Copy, Debug)] +pub enum CausingEntity { + Other, + Player(P), + Arrow(A), +} +pub trait ServerPlayerHurtWorld: PlayerHurtWorld { + type Player: Copy; + type Arrow: Copy; + fn causing_entity( + &mut self, + s: &mut HurtState, + ) -> Result, Self::Error>; + fn arrow_player_owner( + &mut self, + s: &mut HurtState, + arrow: Self::Arrow, + ) -> Result, Self::Error>; + fn can_harm_player( + &mut self, + s: &mut HurtState, + player: Self::Player, + ) -> Result; +} +pub fn server_player_hurt_server( + s: &mut HurtState, + w: &mut W, + damage: f32, +) -> Result { + if w.invulnerable(s)? { + return Ok(false); + } + match w.causing_entity(s)? { + CausingEntity::Player(p) => { + if !w.can_harm_player(s, p)? { + return Ok(false); + } + } + CausingEntity::Arrow(a) => { + if let Some(p) = w.arrow_player_owner(s, a)? { + if !w.can_harm_player(s, p)? { + return Ok(false); + } + } + } + CausingEntity::Other => {} + } + player_hurt_server(s, w, damage) +} diff --git a/docs/collision-geometry.md b/docs/collision-geometry.md index 01ff4ba9c..fa041528f 100644 --- a/docs/collision-geometry.md +++ b/docs/collision-geometry.md @@ -1351,3 +1351,20 @@ Clippy passes. Inner damage, blocking amounts, sounds, knockback, death and attribution/effect services are controlled. Successful totems, attacker-player criteria, actual blocking reduction, full service bindings and player-specific outer gates remain pending. + + +`player_hurt` adds the player ability/invulnerability gates, no-action reset, +shoulder removal, damage-source difficulty scaling and exact-zero rejection +before living hurt. The server-player wrapper first checks PvP permission for +player attackers and player owners of arrow attackers. Difficulty is queried +separately for the peaceful, easy and hard branches as in vanilla. + +`python3 tools/test_player_hurt_parity.py` compares actual Player and ServerPlayer +methods through the native living hurt sequence. The +[player hurt report](../benchmarks/rust-player-hurt-2026-10-07/scoped-parity.json) +records **410,880 matching lines per JAR**, including all three-query difficulty +combinations, player/arrow-owner PvP gates, repeated hits and callback failures. +Targeted Clippy passes. Native downstream living services retain the controlled +fixture scope above; invulnerability internals, rule/source registries, actual +team permissions, successful totems, attacker server-player criteria and complete +player lifecycle integration remain pending. diff --git a/mods/horizon/src/test/java/dev/horizonlab/parity/VanillaPlayerHurtOracle.java b/mods/horizon/src/test/java/dev/horizonlab/parity/VanillaPlayerHurtOracle.java new file mode 100644 index 000000000..76e207b01 --- /dev/null +++ b/mods/horizon/src/test/java/dev/horizonlab/parity/VanillaPlayerHurtOracle.java @@ -0,0 +1,90 @@ +package dev.horizonlab.parity; +import com.google.gson.*;import java.io.*;import java.lang.reflect.*;import java.lang.invoke.*;import java.nio.file.*;import java.util.*; +import net.minecraft.core.*;import net.minecraft.core.component.*;import net.minecraft.core.registries.*;import net.minecraft.resources.*;import net.minecraft.tags.*;import net.minecraft.world.InteractionHand;import net.minecraft.world.entity.*;import net.minecraft.world.entity.player.*;import net.minecraft.world.damagesource.*;import net.minecraft.world.effect.*;import net.minecraft.world.item.*;import net.minecraft.world.item.component.*;import net.minecraft.server.level.*;import net.minecraft.server.PlayerAdvancements;import net.minecraft.sounds.*;import net.minecraft.stats.Stats; +/** Actual Player/ServerPlayer outer gates followed by native living hurt dispatch. */ +public final class VanillaPlayerHurtOracle { + static final class Stop extends RuntimeException {} + static Object unsafe;static Method allocate;static ItemStack plain,shield;static Field stamp,lastSource,noAction,cooldown,lastHurt,duration,time; + static T make(Class c)throws Exception{return c.cast(allocate.invoke(unsafe,c));} + static Field field(Class c,String n)throws Exception{var f=c.getDeclaredField(n);f.setAccessible(true);return f;} + static float single(JsonElement v){return Float.intBitsToFloat(Integer.parseUnsignedInt(v.getAsString(),16));} + static String bits(float v){return String.format("%08x",Float.floatToIntBits(v));} + static String state(LivingEntity a){try{return noAction.getInt(a)+" "+cooldown.getInt(a)+" "+bits(lastHurt.getFloat(a))+" "+duration.getInt(a)+" "+time.getInt(a)+" "+(lastSource.get(a)!=null)+" "+stamp.getLong(a);}catch(Exception e){throw new AssertionError(e);}} + static final class Data {JsonObject op;PrintWriter out;int calls,difficultyCalls;boolean hit;Abilities abilities;PlainPlayer attacker;Arrow arrow;Actor other;float recorded;Server level;PlayerAdvancements advancements;List effects; + boolean flag(String n){return op.get(n).getAsBoolean();}void event(String s){out.println(s);if(calls++==op.get("fail").getAsInt())throw new Stop();}} + static final class Source extends DamageSource {Data d;Source(){super(null);} + @Override public boolean is(TagKey tag){String n=tag==DamageTypeTags.IS_FIRE?"fire":tag==DamageTypeTags.IS_FREEZING?"freezing":tag==DamageTypeTags.DAMAGES_HELMET?"damages_helmet":tag==DamageTypeTags.BYPASSES_COOLDOWN?"bypasses_cooldown":tag==DamageTypeTags.NO_IMPACT?"no_impact":tag==DamageTypeTags.NO_KNOCKBACK?"no_knockback":tag==DamageTypeTags.BYPASSES_INVULNERABILITY?"bypasses_invulnerability":null;if(n==null)throw new AssertionError();d.event("tag "+n);return d.flag(n);} + @Override public boolean is(ResourceKey k){if(k!=DamageTypes.THORNS)throw new AssertionError();d.event("thorns");return false;} + @Override public Entity getEntity(){d.event("attacker");return switch(d.op.get("attacker").getAsInt()){case 0->null;case 1->d.other;case 2->d.attacker;case 3->d.arrow;default->throw new AssertionError();};} + @Override public boolean scalesWithDifficulty(){d.event("scales");return d.flag("scales");}} + static final class PlainPlayer extends Player {PlainPlayer(){super(null,null);}@Override public net.minecraft.world.level.GameType gameMode(){return net.minecraft.world.level.GameType.SURVIVAL;}} + static final class Arrow extends net.minecraft.world.entity.projectile.arrow.Arrow {Data d;Arrow(){super(null,null);}@Override public Entity getOwner(){d.event("owner");return switch(d.op.get("owner").getAsInt()){case 0->null;case 1->d.attacker;case 2->d.other;default->throw new AssertionError();};}} + static final class Server extends ServerLevel {Data d;Server(){super(null,null,null,null,null,null,false,0L,List.of(),false);}@Override public void broadcastDamageEvent(Entity a,DamageSource s){d.event("broadcast");}@Override public net.minecraft.world.Difficulty getDifficulty(){d.event("difficulty");return net.minecraft.world.Difficulty.values()[d.op.getAsJsonArray("difficulties").get(d.difficultyCalls++).getAsInt()];}@Override public long getGameTime(){d.event("game-time");return d.op.get("game_time").getAsLong();}} + static final class Effect extends MobEffectInstance {Data d;int id;Effect(){super(MobEffects.RESISTANCE);}@Override public void onMobHurt(ServerLevel l,LivingEntity a,DamageSource s,float v){d.event("effect "+id+" "+bits(v));}} + static final class Actor extends net.minecraft.world.entity.decoration.ArmorStand {Actor(){super(null,null);} + + Data d; + @Override public boolean isInvulnerableTo(ServerLevel l,DamageSource s){d.event("invulnerable");return d.flag("invulnerable");} + @Override public boolean isDeadOrDying(){d.event("dead");return d.flag(d.hit?"dead_after":"dead_before");} + @Override public boolean hasEffect(Holder e){if(e!=MobEffects.FIRE_RESISTANCE)throw new AssertionError();d.event("fire-resistance");return d.flag("fire_resistance");} + @Override public boolean isSleeping(){d.event("sleeping");return d.flag("sleeping");} + @Override public void stopSleeping(){d.event("wake");} + @Override public ItemStack getUseItem(){d.event("use-item");return d.flag("component")?shield:ItemStack.EMPTY;} + @Override public float applyItemBlocking(ServerLevel l,DamageSource s,float v){d.event("blocking "+bits(v));return single(d.op.get("blocked"));} + @Override public boolean is(TagKey> tag){if(tag!=EntityTypeTags.FREEZE_HURTS_EXTRA_TYPES)throw new AssertionError();d.event("freeze-extra");return d.flag("freeze_extra");} + @Override public ItemStack getItemBySlot(EquipmentSlot slot){if(slot!=EquipmentSlot.HEAD)throw new AssertionError();d.event("helmet");return d.flag("helmet")?plain:ItemStack.EMPTY;} + @Override protected void hurtHelmet(DamageSource s,float v){d.event("hurt-helmet "+bits(v));} + @Override protected void actuallyHurt(ServerLevel l,DamageSource s,float v){d.event("hurt "+bits(v)+" "+state(this));d.hit=true;d.recorded=v;if(d.flag("mutate_hit")){damageCooldownTime=d.op.get("hit_cooldown").getAsInt();lastHurt=single(d.op.get("hit_last"));hurtDuration=d.op.get("hit_duration").getAsInt();hurtTime=d.op.get("hit_time").getAsInt();}} + @Override protected void resolveMobResponsibleForDamage(DamageSource s){d.event("resolve-mob");} + @Override protected Player resolvePlayerResponsibleForDamage(DamageSource s){d.event("resolve-player");return null;} + @Override protected void markHurt(){d.event("mark");} + @Override public void dealDefaultKnockback(DamageSource s,float v,boolean b){d.event("knockback "+bits(v)+" "+b);} + @Override public ItemStack getItemInHand(InteractionHand h){d.event("hand "+h.ordinal());return ItemStack.EMPTY;} + @Override protected SoundEvent getDeathSound(){d.event("death-sound");return null;} + @Override public void makeSound(SoundEvent e){d.event("make-sound");} + @Override public void die(DamageSource s){d.event("die");} + @Override protected void playHurtSound(DamageSource s){d.event("hurt-sound");} + @Override public ServerLevel level(){d.event("level");return d.level;} + @Override public Collection getActiveEffects(){d.event("effects");return d.effects;} + } + static final class Human extends ServerPlayer {Human(){super(null,null,null,null);} + + Data d; + @Override public boolean isInvulnerableTo(ServerLevel l,DamageSource s){d.event("invulnerable");return d.flag("invulnerable");} + @Override public boolean isDeadOrDying(){d.event("dead");return d.flag(d.hit?"dead_after":"dead_before");} + @Override public boolean hasEffect(Holder e){if(e!=MobEffects.FIRE_RESISTANCE)throw new AssertionError();d.event("fire-resistance");return d.flag("fire_resistance");} + @Override public boolean isSleeping(){d.event("sleeping");return d.flag("sleeping");} + @Override public void stopSleeping(){d.event("wake");} + @Override public ItemStack getUseItem(){d.event("use-item");return d.flag("component")?shield:ItemStack.EMPTY;} + @Override public float applyItemBlocking(ServerLevel l,DamageSource s,float v){d.event("blocking "+bits(v));return single(d.op.get("blocked"));} + @Override public boolean is(TagKey> tag){if(tag!=EntityTypeTags.FREEZE_HURTS_EXTRA_TYPES)throw new AssertionError();d.event("freeze-extra");return d.flag("freeze_extra");} + @Override public ItemStack getItemBySlot(EquipmentSlot slot){if(slot!=EquipmentSlot.HEAD)throw new AssertionError();d.event("helmet");return d.flag("helmet")?plain:ItemStack.EMPTY;} + @Override protected void hurtHelmet(DamageSource s,float v){d.event("hurt-helmet "+bits(v));} + @Override protected void actuallyHurt(ServerLevel l,DamageSource s,float v){d.event("hurt "+bits(v)+" "+state(this));d.hit=true;d.recorded=v;if(d.flag("mutate_hit")){damageCooldownTime=d.op.get("hit_cooldown").getAsInt();lastHurt=single(d.op.get("hit_last"));hurtDuration=d.op.get("hit_duration").getAsInt();hurtTime=d.op.get("hit_time").getAsInt();}} + @Override protected void resolveMobResponsibleForDamage(DamageSource s){d.event("resolve-mob");} + @Override protected Player resolvePlayerResponsibleForDamage(DamageSource s){d.event("resolve-player");return null;} + @Override protected void markHurt(){d.event("mark");} + @Override public void dealDefaultKnockback(DamageSource s,float v,boolean b){d.event("knockback "+bits(v)+" "+b);} + @Override public ItemStack getItemInHand(InteractionHand h){d.event("hand "+h.ordinal());return ItemStack.EMPTY;} + @Override protected SoundEvent getDeathSound(){d.event("death-sound");return null;} + @Override public void makeSound(SoundEvent e){d.event("make-sound");} + @Override public void die(DamageSource s){d.event("die");} + @Override protected void playHurtSound(DamageSource s){d.event("hurt-sound");} + @Override public ServerLevel level(){d.event("level");return d.level;} + @Override public Collection getActiveEffects(){d.event("effects");return d.effects;} + + @Override protected void removeEntitiesOnShoulder(){d.event("shoulders");}@Override public boolean canHarmPlayer(Player p){d.event("can-harm");return d.flag("can_harm");}@Override public PlayerAdvancements getAdvancements(){d.event("criterion");return d.advancements;} + @Override public void awardStat(Identifier s,int v){if(s!=Stats.DAMAGE_BLOCKED_BY_SHIELD)throw new AssertionError();d.event("blocked-stat "+v);} + } + public static void main(String[] args)throws Throwable { + net.minecraft.SharedConstants.tryDetectVersion();net.minecraft.server.Bootstrap.bootStrap();var u=Class.forName("sun.misc.Unsafe");unsafe=field(u,"theUnsafe").get(null);allocate=u.getMethod("allocateInstance",Class.class); + noAction=field(LivingEntity.class,"noActionTime");cooldown=field(LivingEntity.class,"damageCooldownTime");lastHurt=field(LivingEntity.class,"lastHurt");duration=field(LivingEntity.class,"hurtDuration");time=field(LivingEntity.class,"hurtTime");stamp=field(LivingEntity.class,"lastDamageStamp");lastSource=field(LivingEntity.class,"lastDamageSource"); + var ctor=ItemStack.class.getDeclaredConstructor(Holder.class,int.class,PatchedDataComponentMap.class);ctor.setAccessible(true);plain=(ItemStack)ctor.newInstance(BuiltInRegistries.ITEM.wrapAsHolder(Items.STICK),1,new PatchedDataComponentMap(DataComponentMap.EMPTY));shield=(ItemStack)ctor.newInstance(BuiltInRegistries.ITEM.wrapAsHolder(Items.SHIELD),1,new PatchedDataComponentMap(DataComponentMap.EMPTY));shield.set(DataComponents.BLOCKS_ATTACKS,new BlocksAttacks(0,1,List.of(),new BlocksAttacks.ItemDamageFunction(0,0,0),Optional.empty(),Optional.empty(),Optional.empty())); + var lookup=MethodHandles.privateLookupIn(Player.class,MethodHandles.lookup());var playerHurt=lookup.findSpecial(Player.class,"hurtServer",MethodType.methodType(boolean.class,ServerLevel.class,DamageSource.class,float.class),Player.class).asType(MethodType.methodType(boolean.class,LivingEntity.class,ServerLevel.class,DamageSource.class,float.class)); + var serverLookup=MethodHandles.privateLookupIn(ServerPlayer.class,MethodHandles.lookup());var serverHurt=serverLookup.findSpecial(ServerPlayer.class,"hurtServer",MethodType.methodType(boolean.class,ServerLevel.class,DamageSource.class,float.class),ServerPlayer.class).asType(MethodType.methodType(boolean.class,LivingEntity.class,ServerLevel.class,DamageSource.class,float.class)); + Path dir=Path.of(args[1]);try(var out=new PrintWriter(Files.newBufferedWriter(dir.resolve(args[0]+".txt")));var lines=Files.lines(dir.resolve("inputs.txt"))){for(var line:(Iterable)lines::iterator){var f=JsonParser.parseString(line).getAsJsonObject();var d=new Data();d.out=out;d.level=make(Server.class);d.level.d=d;d.advancements=make(PlayerAdvancements.class);field(PlayerAdvancements.class,"activeTriggers").set(d.advancements,new HashMap<>());var human=make(Human.class);human.d=d;LivingEntity actor=human;d.abilities=new Abilities();field(Player.class,"abilities").set(actor,d.abilities);d.attacker=make(PlainPlayer.class);d.other=make(Actor.class);d.other.d=d;d.arrow=make(Arrow.class);d.arrow.d=d;var hurt=f.get("server").getAsBoolean()?serverHurt:playerHurt;var source=make(Source.class);source.d=d; + noAction.setInt(actor,f.get("no_action").getAsInt());cooldown.setInt(actor,f.get("cooldown").getAsInt());lastHurt.setFloat(actor,single(f.get("last_hurt")));duration.setInt(actor,f.get("duration").getAsInt());time.setInt(actor,f.get("time").getAsInt());stamp.setLong(actor,f.get("stamp").getAsLong());if(f.get("source").getAsBoolean())lastSource.set(actor,source); + for(var ov:f.getAsJsonArray("ops")){d.op=ov.getAsJsonObject();d.calls=0;d.difficultyCalls=0;d.hit=false;d.abilities.invulnerable=d.flag("ability_invulnerable");d.effects=new ArrayList<>();for(int i=0;if',v).hex() + def op(damage=8,**kw): + o=dict(damage=bits(damage),blocked=bits(0),fail=-1,game_time=123456789,hit_cooldown=3,hit_last=bits(99),hit_duration=2,hit_time=1,effects=0,**{k:False for k in ['invulnerable','dead_before','dead_after','fire','fire_resistance','sleeping','component','freezing','freeze_extra','damages_helmet','helmet','bypasses_cooldown','no_impact','no_knockback','bypasses_invulnerability','mutate_hit']});o.update(kw);return o + def row(ops,**kw): + f=dict(ops=ops,no_action=83,cooldown=0,last_hurt=bits(0),duration=7,time=9,stamp=-3,source=False,player=False);f.update(kw);return f + values=[-float('inf'),-1e30,-1,-0.,0.,1e-40,.1,1,5,10,20,1e30,float('inf'),float('nan')] + for v in values: + for block in values: + for cooldown in [-2147483648,0,10,11,2147483647]: + for player in [False,True]: + yield row([op(v,blocked=bits(block),effects=2),op(v,blocked=bits(block),component=True),op(v,blocked=bits(block),dead_after=True)],cooldown=cooldown,player=player,last_hurt=bits(v)) + for fail in range(-1,38): + for cooldown in [0,10,11,20]: + for dead in [False,True]: + for component in [False,True]: + yield row([op(21,fail=fail,sleeping=True,freezing=True,freeze_extra=True,damages_helmet=True,helmet=True,blocked=bits(2),component=component,dead_after=dead,effects=3,mutate_hit=True),op(22)],player=True,cooldown=cooldown) + rng=random.Random(0x4855525453455256) + for _ in range(3000): + ops=[] + for __ in range(rng.randrange(1,20)): + o=op(rng.choice(values),blocked=bits(rng.choice(values)),effects=rng.randrange(4),game_time=rng.choice([-9223372036854775808,-1,0,9223372036854775807]),fail=rng.choice([-1,-1,-1,*range(38)]),hit_last=bits(rng.choice(values)),hit_cooldown=rng.randrange(-30,31)) + for k in ['invulnerable','dead_before','dead_after','fire','fire_resistance','sleeping','component','freezing','freeze_extra','damages_helmet','helmet','bypasses_cooldown','no_impact','no_knockback','bypasses_invulnerability','mutate_hit']:o[k]=rng.randrange(4)==0 + ops.append(o) + yield row(ops,cooldown=rng.choice([-2147483648,0,10,11,20,2147483647]),last_hurt=bits(rng.choice(values)),source=bool(rng.randrange(2)),player=bool(rng.randrange(2))) + + +def corpus(): + rng=random.Random(0x504c415948555254) + for f in living_corpus(): + f['server']=bool(rng.randrange(2)) + for o in f['ops']: + o.update(ability_invulnerable=bool(rng.randrange(2)),scales=bool(rng.randrange(2)),difficulties=[rng.randrange(4) for _ in range(3)],attacker=rng.randrange(4),owner=rng.randrange(3),can_harm=bool(rng.randrange(2))) + yield f + template=next(living_corpus()) + import copy + values=[-float('inf'),-1e30,-1,-0.,0.,1e-40,.1,1,5,10,20,1e30,float('inf'),float('nan')] + for damage in values: + for a in range(4): + for b in range(4): + for c in range(4): + f=copy.deepcopy(template);f.update(server=True,cooldown=0,last_hurt='00000000');o=f['ops'][0];o.update(damage=struct.pack('>f',damage).hex(),blocked='00000000',ability_invulnerable=False,scales=True,difficulties=[a,b,c],attacker=0,owner=0,can_harm=True);f['ops']=[o];yield f + for fail in range(-1,48): + for attacker in range(4): + for owner in range(3): + f=copy.deepcopy(template);f.update(server=True,cooldown=0,last_hurt='00000000');o=f['ops'][0];o.update(damage='41200000',blocked='3f800000',ability_invulnerable=True,bypasses_invulnerability=True,scales=True,difficulties=[2,1,3],attacker=attacker,owner=owner,can_harm=True,fail=fail);f['ops']=[o];yield f + + +def main(): + parser=argparse.ArgumentParser(description=__doc__);parser.add_argument('--prepare',action='store_true');args=parser.parse_args() + build=lab.LOCAL/'rust-player-hurt-parity';build.mkdir(parents=True,exist_ok=True) + report_path=build/'report.json';report_path.unlink(missing_ok=True) + if args.prepare:lab.prepare() + lock,jars,libraries=base.verify_artifacts() + oracle=lab.ROOT/'mods/horizon/src/test/java/dev/horizonlab/parity/VanillaPlayerHurtOracle.java' + sources=[oracle,Path(__file__),lab.ROOT/'tools/test_rust_parity.py',lab.ROOT/'tools/lab.py',lab.ROOT/'Cargo.toml',lab.ROOT/'Cargo.lock',lab.ROOT/'crates/horizon-core/Cargo.toml',lab.ROOT/'crates/horizon-world/Cargo.toml',*sorted((lab.ROOT/'crates/horizon-core/src').rglob('*.rs')),*sorted((lab.ROOT/'crates/horizon-world/src').rglob('*.rs')),lab.ROOT/'crates/horizon-world/examples/player_hurt_fixture.rs'] + tested_sources=base.source_hashes(sources) + classes=build/'classes';classes.mkdir(exist_ok=True) + def run(command,name): + with (build/(name+'.log')).open('w',encoding='utf-8') as log:base.run(list(map(str,command)),stdout=log,stderr=subprocess.STDOUT) + dependency_path=os.pathsep.join(map(str,libraries)) + run(['javac','--release',lock['minecraft']['java_major'],'-proc:none','-cp',str(jars['server'])+os.pathsep+dependency_path,'-d',classes,oracle],'compile-java') + def java(side,mode,path): + run(['java','-Xmx512M','-cp',os.pathsep.join([str(classes),str(jars[side]),dependency_path]),'dev.horizonlab.parity.VanillaPlayerHurtOracle',mode,path],side+'-'+mode) + fixtures=list(corpus());inputs=build/'inputs.txt';inputs.write_text(''.join(json.dumps(value,separators=(',',':'))+'\n' for value in fixtures),encoding='utf-8') + fixture_paths=[inputs];tested_fixtures=base.source_hashes(fixture_paths) + run(['cargo','build','--release','-p','horizon-world','--example','player_hurt_fixture'],'compile-rust') + metadata=json.loads(subprocess.check_output(['cargo','metadata','--no-deps','--format-version','1'],cwd=lab.ROOT,text=True)) + binary=Path(metadata['target_directory'])/'release/examples'/('player_hurt_fixture.exe' if os.name=='nt' else 'player_hurt_fixture') + run([binary,build],'rust');references=[] + for side,jar in jars.items(): + java(side,side,build);reference=build/f'{side}.txt';matched=base.compare(reference,build/'rust.txt') + references.append({'side':side,'jar_sha256':lab.digest(jar,'sha256'),'output_sha256':lab.digest(reference,'sha256'),'matched_output_lines':matched}) + print(f'{side}: {matched:,} player hurt output lines match Rust',flush=True) + base.ensure_sources_unchanged(sources,tested_sources);base.ensure_sources_unchanged(fixture_paths,tested_fixtures) + report={'schema':1,'minecraft':lock['minecraft']['version'],'manifest_sha1':lock['minecraft']['manifest_sha1'],'platform':platform.platform(),'java':subprocess.check_output(['java','--version'],text=True).splitlines()[0],'rustc':subprocess.check_output(['rustc','--version'],text=True).strip(),'fixtures':len(fixtures),'sources_sha256':tested_sources,'fixtures_sha256':tested_fixtures,'rust_output_sha256':lab.digest(build/'rust.txt','sha256'),'references':references,'scope':'Actual Player and ServerPlayer hurtServer methods on ServerPlayer receivers through native LivingEntity dispatch. Ability/invulnerability ordering, shoulder removal, three difficulty queries, PvP player/arrow-owner gates, repeated hits, non-finite values and callback failures. Native downstream living dispatch uses controlled inner damage/blocking/effects/death services and empty victim criterion listeners. Rules/source registries, actual PvP team permissions, successful totems, attacker server-player criteria and complete player lifecycle remain pending.'} + lab.write_json(report_path,report);print(f'Scoped player hurt parity passed: {report_path}') + + +if __name__=='__main__':main()