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physics: place version code into lib.rs

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Quaternions 2025-01-22 06:45:56 -08:00
parent affbada62e
commit b6b090de78
3 changed files with 40 additions and 40 deletions
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39
engine/physics/src/lib.rs
View File

@ -4,3 +4,42 @@ mod face_crawler;
mod model;
pub mod physics;
// Physics bug fixes can easily desync all bots.
//
// When replaying a bot, use the exact physics version which it was recorded with.
//
// When validating a new bot, ignore the version and use the latest version,
// and overwrite the version in the file.
//
// Compatible physics versions should be determined
// empirically at development time via leaderboard resimulation.
//
// Compatible physics versions should result in an identical leaderboard state,
// or the only bots which fail are ones exploiting a surgically patched bug.
#[derive(Clone,Copy,Hash,Debug,id::Id,Eq,PartialEq,Ord,PartialOrd)]
pub struct PhysicsVersion(u32);
pub const VERSION:PhysicsVersion=PhysicsVersion(0);
const LATEST_COMPATIBLE_VERSION:[u32;1+VERSION.0 as usize]=const{
let compat=[0];
let mut input_version=0;
while input_version<compat.len(){
// compatible version must be greater that or equal to the input version
assert!(input_version as u32<=compat[input_version]);
// compatible version must be a version that exists
assert!(compat[input_version]<=VERSION.0);
input_version+=1;
}
compat
};
pub enum PhysicsVersionError{
UnknownPhysicsVersion,
}
pub const fn get_latest_compatible_version(PhysicsVersion(version):PhysicsVersion)->Result<PhysicsVersion,PhysicsVersionError>{
if (version as usize)<LATEST_COMPATIBLE_VERSION.len(){
Ok(PhysicsVersion(LATEST_COMPATIBLE_VERSION[version as usize]))
}else{
Err(PhysicsVersionError::UnknownPhysicsVersion)
}
}

39
engine/physics/src/physics.rs
View File

@ -14,45 +14,6 @@ use strafesnet_common::integer::{self,vec3,mat3,Planar64,Planar64Vec3,Planar64Ma
pub use strafesnet_common::physics::{Time,TimeInner};
use gameplay::ModeState;
// Physics bug fixes can easily desync all bots.
//
// When replaying a bot, use the exact physics version which it was recorded with.
//
// When validating a new bot, ignore the version and use the latest version,
// and overwrite the version in the file.
//
// Compatible physics versions should be determined
// empirically at development time via leaderboard resimulation.
//
// Compatible physics versions should result in an identical leaderboard state,
// or the only bots which fail are ones exploiting a surgically patched bug.
#[derive(Clone,Copy,Hash,Debug,id::Id,Eq,PartialEq,Ord,PartialOrd)]
pub struct PhysicsVersion(u32);
pub const VERSION:PhysicsVersion=PhysicsVersion(0);
const LATEST_COMPATIBLE_VERSION:[u32;1+VERSION.0 as usize]=const{
let compat=[0];
let mut input_version=0;
while input_version<compat.len(){
// compatible version must be greater that or equal to the input version
assert!(input_version as u32<=compat[input_version]);
// compatible version must be a version that exists
assert!(compat[input_version]<=VERSION.0);
input_version+=1;
}
compat
};
pub enum PhysicsVersionError{
UnknownPhysicsVersion,
}
pub const fn get_latest_compatible_version(PhysicsVersion(version):PhysicsVersion)->Result<PhysicsVersion,PhysicsVersionError>{
if (version as usize)<LATEST_COMPATIBLE_VERSION.len(){
Ok(PhysicsVersion(LATEST_COMPATIBLE_VERSION[version as usize]))
}else{
Err(PhysicsVersionError::UnknownPhysicsVersion)
}
}
pub type Body=crate::body::Body<TimeInner>;
type MouseState=strafesnet_common::mouse::MouseState<TimeInner>;

2
engine/session/src/session.rs
View File

@ -299,7 +299,7 @@ impl InstructionConsumer<Instruction<'_>> for Session{
std::thread::spawn(move ||{
std::fs::create_dir_all("replays").unwrap();
let file=std::fs::File::create(file_name).unwrap();
strafesnet_snf::bot::write_bot(std::io::BufWriter::new(file),physics::VERSION.get(),replay.recording.instructions).unwrap();
strafesnet_snf::bot::write_bot(std::io::BufWriter::new(file),strafesnet_physics::VERSION.get(),replay.recording.instructions).unwrap();
println!("Finished writing bot file!");
});
},