Struct CheckpointWriter 

pub struct CheckpointWriter;

Serialises and deserialises simulation checkpoints as byte buffers.

A checkpoint stores positions, velocities, the current step, and the current simulation time. All values are encoded as little-endian bytes.

Implementations

impl CheckpointWriter

pub fn new() -> Self

Create a new checkpoint writer/reader.

pub fn save_state( positions: &[[f64; 3]], velocities: &[[f64; 3]], step: u64, time: f64, ) -> Vec<u8>

Serialise a simulation state to a byte buffer.

• positions – N particle positions \[x, y, z\] (f64 metres)
• velocities – N particle velocities \[vx, vy, vz\] (f64 m/s)
• step – current step index
• time – current simulation time (seconds)

pub fn load_state(buf: &[u8]) -> (Vec<[f64; 3]>, Vec<[f64; 3]>, u64, f64)

Deserialise a checkpoint from buf.

Returns (positions, velocities, step, time) or panics if the buffer is too short or the magic bytes are wrong.

Trait Implementations

impl Debug for CheckpointWriter

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CheckpointWriter

fn default() -> CheckpointWriter

Returns the “default value” for a type.