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Match player crouching edge backoff and collision probe bounds
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Ludovic Marie committed
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|
||||
"crates/horizon-world/src/worldgen/biome_source.rs": "e181e1736f3e0b75f7091a24c88de3fd116e01b98424d02382aea7a503d1eb54",
|
||||
"crates/horizon-world/src/worldgen/biome_temperature.rs": "cde4bbab5e260c4065b113376c423b8511ade93c5aa5fd976e245ee8a58b5ad1",
|
||||
"crates/horizon-world/src/worldgen/biome_weather.rs": "96b1f9494559ed31d06257b83d604d00cc069ccc8c7b68094117e034b4a71bd7",
|
||||
"crates/horizon-world/src/worldgen/block_blob.rs": "c608c57b3d77279646ecb89e50677dd8e452b0422ffd357ba755536c5589eb89",
|
||||
"crates/horizon-world/src/worldgen/block_column.rs": "f72c21a9066ee0aa68c2fb79fba436d05afb14c6ef5a2cb012f1ed35fc17cd22",
|
||||
"crates/horizon-world/src/worldgen/block_feature.rs": "36b4e46ee7f7f73bcb94d8bce8d99013e4b16234c9a03542eeb3186e88dd1c21",
|
||||
"crates/horizon-world/src/worldgen/block_pile.rs": "623e369b77e0526ed2756485a6c0bb09683cd28ad8876dea907360ca6665b39d",
|
||||
"crates/horizon-world/src/worldgen/block_predicate.rs": "074c692367e3f2191a1bb28d87b23402430a843c246bd30a4ea838ee3500280e",
|
||||
"crates/horizon-world/src/worldgen/blue_ice.rs": "eedd77bdaff808330b864166d303378096daa5c7d235e925770b171c05109247",
|
||||
"crates/horizon-world/src/worldgen/bonus_chest.rs": "05d0f63fbc7412f13ba1fa37a7238114b8f70bfff318beb2dece590482d49cc0",
|
||||
"crates/horizon-world/src/worldgen/bulk_section.rs": "eecf61532d7793f853884c5a18a7f436a59835c7b13d3ec9075804511553c9ba",
|
||||
"crates/horizon-world/src/worldgen/carver/canyon.rs": "509c4d5a9d689849e98e894ab14a9fbf82d10707d38e9cc688ded3c4778df3e2",
|
||||
"crates/horizon-world/src/worldgen/carver/generation.rs": "a4498d0d1457536de3922a08e9c40ccce8d2ef9cc263801c15a412327513c098",
|
||||
"crates/horizon-world/src/worldgen/carver.rs": "46b251e28225fe1250de38f49dec5dacda4e2c4ba1e556e21e6d1e14e2651fc3",
|
||||
"crates/horizon-world/src/worldgen/carving.rs": "4e77d4e5c4a0ca55ca3563b9bdf6f379342e0bdf9d019d60f7bc57ce4afb5fbd",
|
||||
"crates/horizon-world/src/worldgen/chorus_plant.rs": "29224c164ede919e280a65a68f155c873e2c8fd0aa7d7e244d8fa9e468760250",
|
||||
"crates/horizon-world/src/worldgen/climate/codec.rs": "d567adeb5d837816fca69102db51d790f71aec1b51c09298230d24612e400a14",
|
||||
"crates/horizon-world/src/worldgen/climate/index.rs": "c5ce61679a5f0e0f2f0af2a373424effa124d0cce8250609eff38b7034650756",
|
||||
"crates/horizon-world/src/worldgen/climate.rs": "1b9ad44407f40aee4c1cd5357a5c9c443c1b105728f01cf5c644072f99f8357e",
|
||||
"crates/horizon-world/src/worldgen/decoration.rs": "75a79b20b21e133816e729f16e758be6165d0db18a64bfbd5fd3618325a2adf3",
|
||||
"crates/horizon-world/src/worldgen/delta.rs": "c2bf49ddf3231d28c109e68871429bc13d76a7bebe14eb33e84aa856bdd66145",
|
||||
"crates/horizon-world/src/worldgen/density.rs": "65a98c156a290a6b374ef670d28cd5dfbe0aa93171824d1bbd96422536273f84",
|
||||
"crates/horizon-world/src/worldgen/disk.rs": "6f8f9e059755af44c9bfa1b91eba54a7d13fad811dce31717c5502d7f6df33d7",
|
||||
"crates/horizon-world/src/worldgen/end_gateway.rs": "f53fde77d6a36a525cd15d890003b2c129d0689a4cbfa2cf443a0c2e3acae040",
|
||||
"crates/horizon-world/src/worldgen/end_podium.rs": "8f6d0d6d60ff0fde63de5781e867239db321f82cf12639f0537d410a3731ee1d",
|
||||
"crates/horizon-world/src/worldgen/feature.rs": "40500af71ee6628dfb27518262d99f08d0383ae6c7b9397452feef0c213eadd9",
|
||||
"crates/horizon-world/src/worldgen/feature_catalog.rs": "efc7b17b227e71622ef34108be9abd010f5675b68ea0409fcab82581d9aab88a",
|
||||
"crates/horizon-world/src/worldgen/feature_graph.rs": "da132fca9fdafb0d89a917d5f4b68c60b70fb33cadf948a107da0e35d83dcd91",
|
||||
"crates/horizon-world/src/worldgen/feature_region.rs": "df0ff142a461cafa9a3b42b949ad3376887f2be8d4ea5cc794a3ed2e977bb499",
|
||||
"crates/horizon-world/src/worldgen/feature_sort.rs": "3488a093dfe1321aaa29d8a30cfb115d8e666a81bf195514e87b170de626835c",
|
||||
"crates/horizon-world/src/worldgen/fluid_predicate.rs": "64197c9e63bebf1ce04bc280bfe980bb6c1b9aa887ca5cded904aeb0d9ae6c46",
|
||||
"crates/horizon-world/src/worldgen/height_provider.rs": "368d4dc119854742a045c4a717679c921456da681fc5f71aa9b37102d6f33b47",
|
||||
"crates/horizon-world/src/worldgen/material_condition/codec.rs": "09b909bc384472f76d163c8069ec6b507c7d5c6a028a36d5e0e3df20deff7b3b",
|
||||
"crates/horizon-world/src/worldgen/material_condition/density.rs": "df9d0761e978e5010663ae8b44f2d6c1ecb4907331e333bdb6a2b487c1e107de",
|
||||
"crates/horizon-world/src/worldgen/material_condition/library.rs": "a55534c5da97575a819af5a7dc0dbec9069993fa8b2619c6c9d5576946e683fa",
|
||||
"crates/horizon-world/src/worldgen/material_condition/noise.rs": "ffb59cc6be2275d7a5621bf7d768527e74a8326ed7ad78618746711540921675",
|
||||
"crates/horizon-world/src/worldgen/material_condition/rule.rs": "fed643352efbcb1f68f29b6241896617db889fc7c577a6247564e01922fec1fe",
|
||||
"crates/horizon-world/src/worldgen/material_condition.rs": "d638dcb8cbcb5da20b3cb29602b0ae6a86c4fdf9d8c0fb725de8ec5fc108717e",
|
||||
"crates/horizon-world/src/worldgen/material_extensions.rs": "ab806eb679d5116e1aebb64fca70e1499ae71f83c9507a8cb4c3201c2b1bf037",
|
||||
"crates/horizon-world/src/worldgen/material_stage.rs": "698cbc786eff13c246e2bc2ea062401918cd4265899fbc3d53abc87e45a8e7a1",
|
||||
"crates/horizon-world/src/worldgen/material_surface.rs": "5d37b90099df3d6da0845dab164e71469fb287019c2ee74bc6714f3b9d6d6d5b",
|
||||
"crates/horizon-world/src/worldgen/ore_feature.rs": "83b89fd3be691c5412c0215b6abefdcaa44119a05aa41217e061970eb7e12ebd",
|
||||
"crates/horizon-world/src/worldgen/placement/chain.rs": "9218399b4d3757f7bbc550d7729a7201f32a1c83a7030865e0c12aab8a80d116",
|
||||
"crates/horizon-world/src/worldgen/placement/context.rs": "a278304795136677ad4b4933ea50c972b9729a1c671c03fa309c193e224b1fd6",
|
||||
"crates/horizon-world/src/worldgen/placement/layer.rs": "a0f5ca776f33f9d4f72b8fdcd163426152e5e43cb4a7572fc1d4fc57bf965de1",
|
||||
"crates/horizon-world/src/worldgen/placement.rs": "b0397e5818fae84358546193a95f84bcb0b5bffafce909e6fcb3386179ee8023",
|
||||
"crates/horizon-world/src/worldgen/replace_blobs.rs": "bf3377d86d2570cd15288ba69dde64a2cf67c5bcbb9a31d0c23421964af74afa",
|
||||
"crates/horizon-world/src/worldgen/router.rs": "2cee7cf15a0d2ada12be6b39d83e78177fd3033922e4f4cce87a64073cec2847",
|
||||
"crates/horizon-world/src/worldgen/rule_test.rs": "d1662ec492489ebaa4b87e20f9a8c809dcf3a223a151211bd65ec241a63692fc",
|
||||
"crates/horizon-world/src/worldgen/settings.rs": "a8fe87752e1982ef11cb67f8d80d8e3428b2c27db178044cb425ba803e689e59",
|
||||
"crates/horizon-world/src/worldgen/simple_block.rs": "9ba1a88d5db4925f8c37366557887f776c805f9a6444781615b5dbaff52e92a4",
|
||||
"crates/horizon-world/src/worldgen/snow_freeze.rs": "9040be3d5c7f8f0fd812d2df45e154bf8a9eeef038530b83fa4159d246eac35f",
|
||||
"crates/horizon-world/src/worldgen/speleothem.rs": "c71651c1c97818a8a85863e14414d6139ea3bdeb897fa422043bcc1499d99aae",
|
||||
"crates/horizon-world/src/worldgen/spike.rs": "eacf0d9d3d2bc3d4bcf62bc87555f90031138236a5bfef0eb5270204f7c2a4fc",
|
||||
"crates/horizon-world/src/worldgen/spring.rs": "830849e9b89fcdf09e9b06fbefdcdebe3c8c3f82804f60b8bd5de04ba303cb62",
|
||||
"crates/horizon-world/src/worldgen/state_provider/catalog.rs": "c8687e15a4887a9200c8d365857d801efaa8f90e669eee3e600a1db4905119eb",
|
||||
"crates/horizon-world/src/worldgen/state_provider/noise.rs": "7ee369c2a032e5620cb9bdf9ee7adad1f70870fb0a27efb7b7c514d92f83491f",
|
||||
"crates/horizon-world/src/worldgen/state_provider/properties.rs": "9909139aaca1dc4f743957257fadaa9d423d21fa401fa9abc050505f79365139",
|
||||
"crates/horizon-world/src/worldgen/state_provider.rs": "be29ada818826a90afe01ab60916360fdfc4cbde5af15c9359cd56b1f1f7b156",
|
||||
"crates/horizon-world/src/worldgen/tags.rs": "d35ded93fe6e95ea045cadcf4925e656dc34ef832b742179b9ad0cc49f902f31",
|
||||
"crates/horizon-world/src/worldgen/terrain.rs": "fd1f2e0afc15daf66f484ea40a1f2b7013650bda0941b23c64c81ee9f79cb673",
|
||||
"crates/horizon-world/src/worldgen/underwater_magma.rs": "7317e40af5ee5a9780f90ce358fa5d3e7f5b3d513b731df6ff97754d9c2a0154",
|
||||
"crates/horizon-world/src/worldgen/value_provider.rs": "3358b563db8cb0bc8a9cfbbe2b8b3e70941cd2d37a0b519fbb6545f8d0dcbb69",
|
||||
"crates/horizon-world/src/worldgen/vines.rs": "ee9b79b65012bd86a838241d2ef708680f7fe8eafc8aa656dae9cf2abf3c6418",
|
||||
"crates/horizon-world/src/worldgen/weighted.rs": "839840aae25302933bbd97a81a2336330e2d03a0ad1684e1e16ac769ed408e6b",
|
||||
"crates/horizon-world/src/worldgen/write_zone.rs": "8e17a179764d3f68c05882aef35f6810c28a0000f9a83e58bd6030660b76e64e",
|
||||
"crates/horizon-world/src/worldgen.rs": "e8e9f099ee1fcec8eedce31805d676d3f89c18e84f494a147ffcbfee23d3d54f",
|
||||
"crates/horizon-world/examples/edge_backoff_fixture.rs": "6f8d84bd0690cebca4f9b2b21e75fda68682a2b16b4d6b47006bac8bfba8f7ff"
|
||||
},
|
||||
"fixtures_sha256": {
|
||||
".local/rust-edge-backoff-parity/inputs.txt": "a6175306f75e66a432d74d13a3e489a0a1c046441f66a572ed6880a41a42082b"
|
||||
},
|
||||
"rust_output_sha256": "e116ab9948901cc27a78a82a3a8b5ce171b5f10587e01022d91d8467af656276",
|
||||
"references": [
|
||||
{
|
||||
"side": "client",
|
||||
"jar_sha256": "4508d006323f24fa02876310c192d739af56516eb259000ac50f0909a68c9a2d",
|
||||
"output_sha256": "e116ab9948901cc27a78a82a3a8b5ce171b5f10587e01022d91d8467af656276",
|
||||
"matched_output_lines": 46578
|
||||
},
|
||||
{
|
||||
"side": "server",
|
||||
"jar_sha256": "a362163eec5d1612d520772bc16e5b39c09e3b234fdc045f56bf544284ee8ae6",
|
||||
"output_sha256": "e116ab9948901cc27a78a82a3a8b5ce171b5f10587e01022d91d8467af656276",
|
||||
"matched_output_lines": 46578
|
||||
}
|
||||
],
|
||||
"scope": "Actual Player.maybeBackOffFromEdge, isAboveGround and canFallAtLeast with controlled step/staying/ground getters and ordered collision-free query results. Compares mover and flight guards, fall-distance boundaries, float step widening, exact thin probe bounds, X/Z/diagonal reductions, signed zero/nonfinite inputs and injected query errors. This does not establish live player crouching state, attribute provisioning or integrated registered-world ledge behavior; those need separate integration checks."
|
||||
}
|
||||
@@ -0,0 +1,117 @@
|
||||
use horizon_core::geometry::{Aabb, Axis, Vec3};
|
||||
use horizon_world::edge_backoff::{EdgeBackoffInput, EdgeBackoffWorld, back_off_from_edge};
|
||||
use serde_json::Value;
|
||||
use std::{
|
||||
fs,
|
||||
io::{self, Write},
|
||||
path::Path,
|
||||
};
|
||||
fn number(v: &Value) -> f64 {
|
||||
f64::from_bits(u64::from_str_radix(v.as_str().unwrap(), 16).unwrap())
|
||||
}
|
||||
fn vector(v: &Value) -> Vec3 {
|
||||
Vec3::new(number(&v[0]), number(&v[1]), number(&v[2]))
|
||||
}
|
||||
fn bits(v: f64) -> u64 {
|
||||
if v.is_nan() {
|
||||
0x7ff8000000000000
|
||||
} else {
|
||||
v.to_bits()
|
||||
}
|
||||
}
|
||||
struct World<'a> {
|
||||
input: &'a Value,
|
||||
out: &'a mut dyn Write,
|
||||
calls: i64,
|
||||
probes: usize,
|
||||
}
|
||||
impl World<'_> {
|
||||
fn query(&mut self, text: String) -> io::Result<()> {
|
||||
writeln!(self.out, "{text}")?;
|
||||
let call = self.calls;
|
||||
self.calls += 1;
|
||||
if call == self.input["fail"].as_i64().unwrap() {
|
||||
Err(io::Error::other("injected edge query failure"))
|
||||
} else {
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
}
|
||||
impl EdgeBackoffWorld for World<'_> {
|
||||
type Error = io::Error;
|
||||
fn max_up_step(&mut self) -> io::Result<f32> {
|
||||
self.query("step".into())?;
|
||||
Ok(f32::from_bits(
|
||||
u32::from_str_radix(self.input["step"].as_str().unwrap(), 16).unwrap(),
|
||||
))
|
||||
}
|
||||
fn staying_on_ground_surface(&mut self) -> io::Result<bool> {
|
||||
self.query("staying".into())?;
|
||||
Ok(self.input["staying"].as_bool().unwrap())
|
||||
}
|
||||
fn on_ground(&mut self) -> io::Result<bool> {
|
||||
self.query("ground".into())?;
|
||||
Ok(self.input["ground"].as_bool().unwrap())
|
||||
}
|
||||
fn no_collision(&mut self, b: Aabb) -> io::Result<bool> {
|
||||
self.query(format!(
|
||||
"clear {:016x} {:016x} {:016x} {:016x} {:016x} {:016x}",
|
||||
bits(b.min(Axis::X)),
|
||||
bits(b.min(Axis::Y)),
|
||||
bits(b.min(Axis::Z)),
|
||||
bits(b.max(Axis::X)),
|
||||
bits(b.max(Axis::Y)),
|
||||
bits(b.max(Axis::Z))
|
||||
))?;
|
||||
let p = self.probes;
|
||||
self.probes += 1;
|
||||
Ok(self.input["clear"]
|
||||
.as_array()
|
||||
.unwrap()
|
||||
.get(p)
|
||||
.and_then(Value::as_bool)
|
||||
.unwrap_or(false))
|
||||
}
|
||||
}
|
||||
fn main() -> Result<(), Box<dyn std::error::Error>> {
|
||||
let arg = std::env::args().nth(1).expect("private fixture directory");
|
||||
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 b = &f["box"];
|
||||
let bounds = Aabb::new(
|
||||
Vec3::new(number(&b[0]), number(&b[1]), number(&b[2])),
|
||||
Vec3::new(number(&b[3]), number(&b[4]), number(&b[5])),
|
||||
);
|
||||
let mut world = World {
|
||||
input: &f,
|
||||
out: &mut out,
|
||||
calls: 0,
|
||||
probes: 0,
|
||||
};
|
||||
let result = back_off_from_edge(
|
||||
&mut world,
|
||||
EdgeBackoffInput {
|
||||
movement: vector(&f["movement"]),
|
||||
bounds,
|
||||
flying: f["flying"].as_bool().unwrap(),
|
||||
self_or_player: matches!(f["mover"].as_str().unwrap(), "SELF" | "PLAYER"),
|
||||
fall_distance: number(&f["fall"]),
|
||||
query_budget: 10000,
|
||||
},
|
||||
);
|
||||
match result {
|
||||
Ok(v) => writeln!(
|
||||
world.out,
|
||||
"movement {:016x} {:016x} {:016x}",
|
||||
bits(v.x),
|
||||
bits(v.y),
|
||||
bits(v.z)
|
||||
)?,
|
||||
Err(_) => writeln!(world.out, "error")?,
|
||||
};
|
||||
writeln!(world.out, "queries {}", world.calls)?;
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
@@ -0,0 +1,108 @@
|
||||
//! Player crouching edge backoff and its lazy collision-free probes.
|
||||
use horizon_core::geometry::{Aabb, Vec3};
|
||||
|
||||
pub trait EdgeBackoffWorld {
|
||||
type Error;
|
||||
fn max_up_step(&mut self) -> Result<f32, Self::Error>;
|
||||
fn staying_on_ground_surface(&mut self) -> Result<bool, Self::Error>;
|
||||
fn on_ground(&mut self) -> Result<bool, Self::Error>;
|
||||
fn no_collision(&mut self, bounds: Aabb) -> Result<bool, Self::Error>;
|
||||
}
|
||||
pub struct EdgeBackoffInput {
|
||||
pub movement: Vec3,
|
||||
pub bounds: Aabb,
|
||||
pub flying: bool,
|
||||
/// True only for native SELF and PLAYER mover types.
|
||||
pub self_or_player: bool,
|
||||
pub fall_distance: f64,
|
||||
pub query_budget: usize,
|
||||
}
|
||||
#[derive(Debug)]
|
||||
pub enum EdgeBackoffError<E> {
|
||||
World(E),
|
||||
QueryBudget,
|
||||
}
|
||||
impl<E: std::fmt::Display> std::fmt::Display for EdgeBackoffError<E> {
|
||||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||
match self {
|
||||
Self::World(e) => e.fmt(f),
|
||||
Self::QueryBudget => f.write_str("edge backoff collision query budget exhausted"),
|
||||
}
|
||||
}
|
||||
}
|
||||
impl<E: std::error::Error + 'static> std::error::Error for EdgeBackoffError<E> {}
|
||||
fn signum(v: f64) -> f64 {
|
||||
if v == 0.0 || v.is_nan() {
|
||||
v
|
||||
} else {
|
||||
v.signum()
|
||||
}
|
||||
}
|
||||
fn decrease(v: f64, step: f64) -> f64 {
|
||||
if v.abs() <= 0.05 { 0.0 } else { v - step }
|
||||
}
|
||||
/// The budget bounds pathological/nonconverging motion. Exhaustion is an error,
|
||||
/// never a successful clamped displacement; earlier provider effects remain.
|
||||
pub fn back_off_from_edge<W: EdgeBackoffWorld>(
|
||||
world: &mut W,
|
||||
input: EdgeBackoffInput,
|
||||
) -> Result<Vec3, EdgeBackoffError<W::Error>> {
|
||||
let step = f64::from(world.max_up_step().map_err(EdgeBackoffError::World)?);
|
||||
if input.flying
|
||||
|| input.movement.y > 0.0
|
||||
|| !input.self_or_player
|
||||
|| !world
|
||||
.staying_on_ground_surface()
|
||||
.map_err(EdgeBackoffError::World)?
|
||||
{
|
||||
return Ok(input.movement);
|
||||
}
|
||||
let grounded = world.on_ground().map_err(EdgeBackoffError::World)?;
|
||||
let mut queries = 0usize;
|
||||
let mut can_fall =
|
||||
|dx: f64, dz: f64, amount: f64| -> Result<bool, EdgeBackoffError<W::Error>> {
|
||||
if queries == input.query_budget {
|
||||
return Err(EdgeBackoffError::QueryBudget);
|
||||
}
|
||||
queries += 1;
|
||||
let min = input.bounds.min_position();
|
||||
let max = input.bounds.max_position();
|
||||
let bounds = Aabb::new(
|
||||
Vec3::new(
|
||||
min.x + 1.0e-7 + dx,
|
||||
min.y - amount - 1.0e-7,
|
||||
min.z + 1.0e-7 + dz,
|
||||
),
|
||||
Vec3::new(max.x - 1.0e-7 + dx, min.y, max.z - 1.0e-7 + dz),
|
||||
);
|
||||
world.no_collision(bounds).map_err(EdgeBackoffError::World)
|
||||
};
|
||||
if !grounded
|
||||
&& !(input.fall_distance < step && !can_fall(0.0, 0.0, step - input.fall_distance)?)
|
||||
{
|
||||
return Ok(input.movement);
|
||||
}
|
||||
let mut x = input.movement.x;
|
||||
let mut z = input.movement.z;
|
||||
let dx = signum(x) * 0.05;
|
||||
let dz = signum(z) * 0.05;
|
||||
while x != 0.0 && can_fall(x, 0.0, step)? {
|
||||
if x.abs() <= 0.05 {
|
||||
x = 0.0;
|
||||
break;
|
||||
}
|
||||
x -= dx;
|
||||
}
|
||||
while z != 0.0 && can_fall(0.0, z, step)? {
|
||||
if z.abs() <= 0.05 {
|
||||
z = 0.0;
|
||||
break;
|
||||
}
|
||||
z -= dz;
|
||||
}
|
||||
while x != 0.0 && z != 0.0 && can_fall(x, z, step)? {
|
||||
x = decrease(x, dx);
|
||||
z = decrease(z, dz);
|
||||
}
|
||||
Ok(Vec3::new(x, input.movement.y, z))
|
||||
}
|
||||
@@ -15,6 +15,7 @@ pub mod collision;
|
||||
pub mod collision_context;
|
||||
pub mod compression;
|
||||
pub mod dynamic_support;
|
||||
pub mod edge_backoff;
|
||||
pub mod entity_collision;
|
||||
pub mod entity_obstruction;
|
||||
pub mod fluid;
|
||||
|
||||
@@ -0,0 +1,62 @@
|
||||
use horizon_core::geometry::{Aabb, Vec3};
|
||||
use horizon_world::edge_backoff::{
|
||||
EdgeBackoffError, EdgeBackoffInput, EdgeBackoffWorld, back_off_from_edge,
|
||||
};
|
||||
struct World {
|
||||
calls: usize,
|
||||
}
|
||||
impl EdgeBackoffWorld for World {
|
||||
type Error = std::convert::Infallible;
|
||||
fn max_up_step(&mut self) -> Result<f32, Self::Error> {
|
||||
Ok(0.6)
|
||||
}
|
||||
fn staying_on_ground_surface(&mut self) -> Result<bool, Self::Error> {
|
||||
Ok(true)
|
||||
}
|
||||
fn on_ground(&mut self) -> Result<bool, Self::Error> {
|
||||
Ok(true)
|
||||
}
|
||||
fn no_collision(&mut self, _: Aabb) -> Result<bool, Self::Error> {
|
||||
self.calls += 1;
|
||||
Ok(true)
|
||||
}
|
||||
}
|
||||
fn input() -> EdgeBackoffInput {
|
||||
EdgeBackoffInput {
|
||||
movement: Vec3::new(f64::INFINITY, 0.0, 0.0),
|
||||
bounds: Aabb::new(Vec3::new(-0.3, 1.0, -0.3), Vec3::new(0.3, 2.8, 0.3)),
|
||||
flying: false,
|
||||
self_or_player: true,
|
||||
fall_distance: 0.0,
|
||||
query_budget: 3,
|
||||
}
|
||||
}
|
||||
#[test]
|
||||
fn nonconverging_motion_exhausts_budget_without_successful_displacement() {
|
||||
let mut world = World { calls: 0 };
|
||||
assert!(matches!(
|
||||
back_off_from_edge(&mut world, input()),
|
||||
Err(EdgeBackoffError::QueryBudget)
|
||||
));
|
||||
assert_eq!(world.calls, 3);
|
||||
}
|
||||
#[test]
|
||||
fn zero_budget_only_fails_when_a_probe_is_needed() {
|
||||
let mut world = World { calls: 0 };
|
||||
let mut request = input();
|
||||
request.query_budget = 0;
|
||||
request.flying = true;
|
||||
assert!(
|
||||
back_off_from_edge(&mut world, request)
|
||||
.unwrap()
|
||||
.x
|
||||
.is_infinite()
|
||||
);
|
||||
let mut request = input();
|
||||
request.query_budget = 0;
|
||||
assert!(matches!(
|
||||
back_off_from_edge(&mut world, request),
|
||||
Err(EdgeBackoffError::QueryBudget)
|
||||
));
|
||||
assert_eq!(world.calls, 0);
|
||||
}
|
||||
@@ -623,3 +623,19 @@ provider failures are covered. Workspace Clippy passes. Null-entity overloads,
|
||||
actual entity-list/border providers and live player ledge behavior remain pending.
|
||||
The [shared movement regression](../benchmarks/rust-world-collision-check-2026-10-07/movement-regression.json)
|
||||
also passes with **7,062,798 matching lines per JAR**.
|
||||
|
||||
|
||||
`back_off_from_edge` implements the player ledge guards, above-ground test and
|
||||
X/Z/diagonal displacement reductions. It retains lazy step/staying/grounded
|
||||
queries, float step widening, signed-zero behavior and the exact thin collision
|
||||
probe arithmetic. A caller-supplied query budget bounds nonconverging inputs and
|
||||
returns an error without fabricating a successful displacement.
|
||||
|
||||
`python3 tools/test_edge_backoff_parity.py` executes actual player methods with
|
||||
controlled collision-free query results. The
|
||||
[edge backoff report](../benchmarks/rust-edge-backoff-2026-10-07/scoped-parity.json)
|
||||
records **46,578 matching lines per JAR**, covering all mover types, flight/crouch
|
||||
guards, fall/step and 0.05 thresholds, nonfinite values and query failures. Two
|
||||
query-budget unit tests and workspace Clippy pass. Registered-world ledge probes,
|
||||
live crouching/attribute state and the complete player movement loop are separate
|
||||
integration work.
|
||||
@@ -0,0 +1,43 @@
|
||||
package dev.horizonlab.parity;
|
||||
import com.google.gson.*;
|
||||
import java.io.*;
|
||||
import java.lang.reflect.*;
|
||||
import java.nio.file.*;
|
||||
import java.util.*;
|
||||
import net.minecraft.world.entity.*;
|
||||
import net.minecraft.world.entity.player.*;
|
||||
import net.minecraft.world.level.GameType;
|
||||
import net.minecraft.world.phys.*;
|
||||
/** Actual Player edge-backoff decisions and probe bounds with controlled collisions. */
|
||||
public final class VanillaEdgeBackoffOracle {
|
||||
static final class Stop extends RuntimeException {}
|
||||
static double number(JsonElement v){return Double.longBitsToDouble(Long.parseUnsignedLong(v.getAsString(),16));}
|
||||
static Vec3 vector(JsonElement v){var a=v.getAsJsonArray();return new Vec3(number(a.get(0)),number(a.get(1)),number(a.get(2)));}
|
||||
static final class Data {
|
||||
JsonObject input;PrintWriter out;int calls,probes;
|
||||
void query(String text){out.println(text);if(calls++==input.get("fail").getAsInt())throw new Stop();}
|
||||
}
|
||||
static final class Level extends net.minecraft.server.level.ServerLevel {
|
||||
Data d;
|
||||
private Level(){super(null,null,null,null,null,null,false,0L,List.of(),false);}
|
||||
@Override public boolean noCollision(Entity entity,AABB b){d.query(String.format("clear %016x %016x %016x %016x %016x %016x",Double.doubleToLongBits(b.minX),Double.doubleToLongBits(b.minY),Double.doubleToLongBits(b.minZ),Double.doubleToLongBits(b.maxX),Double.doubleToLongBits(b.maxY),Double.doubleToLongBits(b.maxZ)));var values=d.input.getAsJsonArray("clear");int index=d.probes++;return index<values.size()?values.get(index).getAsBoolean():false;}
|
||||
}
|
||||
static final class Actor extends Player {
|
||||
Data d;Actor(){super(null,null);}void configure(Level level){setLevel(level);}
|
||||
@Override public GameType gameMode(){return GameType.SURVIVAL;}
|
||||
@Override public float maxUpStep(){d.query("step");return Float.intBitsToFloat(Integer.parseUnsignedInt(d.input.get("step").getAsString(),16));}
|
||||
@Override protected boolean isStayingOnGroundSurface(){d.query("staying");return d.input.get("staying").getAsBoolean();}
|
||||
@Override public boolean onGround(){d.query("ground");return d.input.get("ground").getAsBoolean();}
|
||||
Vec3 backoff(Vec3 v,MoverType type){return maybeBackOffFromEdge(v,type);}
|
||||
}
|
||||
public static void main(String[] args)throws Exception {
|
||||
net.minecraft.SharedConstants.tryDetectVersion();net.minecraft.server.Bootstrap.bootStrap();
|
||||
var allocator=Class.forName("sun.misc.Unsafe");var field=allocator.getDeclaredField("theUnsafe");field.setAccessible(true);var unsafe=field.get(null);var allocate=allocator.getMethod("allocateInstance",Class.class);var abilities=Player.class.getDeclaredField("abilities");abilities.setAccessible(true);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<String>)lines::iterator){
|
||||
var f=JsonParser.parseString(line).getAsJsonObject();var d=new Data();d.input=f;d.out=out;var level=(Level)allocate.invoke(unsafe,Level.class);level.d=d;var entity=(Actor)allocate.invoke(unsafe,Actor.class);entity.d=d;entity.configure(level);var a=new Abilities();a.flying=f.get("flying").getAsBoolean();abilities.set(entity,a);entity.fallDistance=number(f.get("fall"));var b=f.getAsJsonArray("box");entity.setBoundingBox(new AABB(number(b.get(0)),number(b.get(1)),number(b.get(2)),number(b.get(3)),number(b.get(4)),number(b.get(5))));
|
||||
try{var result=entity.backoff(vector(f.get("movement")),MoverType.valueOf(f.get("mover").getAsString()));out.printf("movement %016x %016x %016x%n",Double.doubleToLongBits(result.x),Double.doubleToLongBits(result.y),Double.doubleToLongBits(result.z));}catch(Stop error){out.println("error");}out.println("queries "+d.calls);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,72 @@
|
||||
#!/usr/bin/env python3
|
||||
"""Compare player crouching edge-backoff probes and lazy guards with vanilla."""
|
||||
import argparse
|
||||
import json
|
||||
import os
|
||||
from pathlib import Path
|
||||
import platform
|
||||
import subprocess
|
||||
import random
|
||||
import struct
|
||||
import math
|
||||
try:
|
||||
from . import lab, test_rust_parity as base
|
||||
except ImportError:
|
||||
import lab
|
||||
import test_rust_parity as base
|
||||
|
||||
|
||||
def corpus():
|
||||
def bits(v):return struct.pack('>d',float(v)).hex()
|
||||
def single(v):return struct.pack('>f',float(v)).hex()
|
||||
def row(flags=6,mover='SELF',movement=(.3,-.08,.2),step=.6,fall=0,clear=None,fail=-1,bounds=(-.3,1,-.3,.3,2.8,.3)):
|
||||
return dict(flying=bool(flags&1),staying=bool(flags&2),ground=bool(flags&4),mover=mover,movement=list(map(bits,movement)),step=single(step),fall=bits(fall),clear=clear if clear is not None else [True]*30,fail=fail,box=list(map(bits,bounds)))
|
||||
for flags in range(8):
|
||||
for mover in ['SELF','PLAYER','PISTON','SHULKER','SHULKER_BOX']:
|
||||
for y in [-.1,-0.0,0,.1,float('nan')]:
|
||||
for fall in [0,.2,.6,1,float('nan')]:
|
||||
for clear in [[],[False],[True],[False]+[True]*30]:yield row(flags,mover,(.3,y,.2),fall=fall,clear=clear)
|
||||
values=[-.6,-.1,-math.nextafter(.05,1),-.05,-math.nextafter(.05,0),-1e-9,-0.0,0,1e-9,math.nextafter(.05,0),.05,math.nextafter(.05,1),.1,.6,float('nan'),float('inf')]
|
||||
for x in values:
|
||||
for z in values:
|
||||
for clear in [[],[True]*30,[False,True,False]+[True]*10,[True,False,True,False]+[True]*10]:yield row(movement=(x,-.08,z),clear=clear)
|
||||
for fail in range(-1,35):
|
||||
for flags in [0,2,6,7]:yield row(flags=flags,clear=[False]+[True]*40,fail=fail)
|
||||
rng=random.Random(0x45444745)
|
||||
for _ in range(6000):
|
||||
low=[rng.choice([-16,-1,-0.0,0,.1,1,1e8,float('nan')]) for _ in range(3)];high=[v+rng.choice([0,1e-8,.6,1.8]) for v in low]
|
||||
yield row(flags=rng.randrange(8),mover=rng.choice(['SELF','SELF','PLAYER','PISTON']),movement=[rng.choice(values),rng.choice([-.1,0,.1,float('nan')]),rng.choice(values)],step=rng.choice([0,.5,.6,1,float('nan'),float('inf')]),fall=rng.choice([0,.2,.6,1,float('nan')]),clear=[bool(rng.randrange(2)) for _ in range(50)],fail=rng.choice([-1,-1,0,1,2,3,10]),bounds=(*low,*high))
|
||||
|
||||
|
||||
def main():
|
||||
parser=argparse.ArgumentParser(description=__doc__);parser.add_argument('--prepare',action='store_true');args=parser.parse_args()
|
||||
build=lab.LOCAL/'rust-edge-backoff-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/VanillaEdgeBackoffOracle.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/edge_backoff_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.VanillaEdgeBackoffOracle',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','edge_backoff_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'/('edge_backoff_fixture.exe' if os.name=='nt' else 'edge_backoff_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:,} edge-backoff 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.maybeBackOffFromEdge, isAboveGround and canFallAtLeast with controlled step/staying/ground getters and ordered collision-free query results. Compares mover and flight guards, fall-distance boundaries, float step widening, exact thin probe bounds, X/Z/diagonal reductions, signed zero/nonfinite inputs and injected query errors. This does not establish live player crouching state, attribute provisioning or integrated registered-world ledge behavior; those need separate integration checks.'}
|
||||
lab.write_json(report_path,report);print(f'Scoped edge backoff parity passed: {report_path}')
|
||||
|
||||
|
||||
if __name__=='__main__':main()
|
||||
Reference in new issue
Block a user