Struct SaveHeader 

pub struct SaveHeader {
    pub magic: [u8; 4],
    pub version: u32,
    pub game_version: String,
    pub timestamp: u64,
    pub player_name: String,
    pub play_time_seconds: f64,
    pub metadata: HashMap<String, String>,
}

Metadata stored at the top of a save file.

The header is always present and can be read without loading the full snapshot, which is useful for displaying slot previews in a save/load menu.

Fields

magic: [u8; 4]

Magic bytes — always SAVE_MAGIC.

version: u32

Format version (not the game version).

game_version: String

Human-readable game version string, e.g. "1.2.3".

timestamp: u64

Unix timestamp (seconds) when this save was written.

player_name: String

Player name at save time.

play_time_seconds: f64

Cumulative play time in seconds.

metadata: HashMap<String, String>

Arbitrary key-value metadata (level name, difficulty, etc.).

Implementations

impl SaveHeader

pub fn new() -> Self

pub fn with_player(self, name: impl Into<String>) -> Self

pub fn with_play_time(self, secs: f64) -> Self

pub fn with_game_version(self, ver: impl Into<String>) -> Self

pub fn set_meta(&mut self, key: impl Into<String>, value: impl Into<String>)

pub fn get_meta(&self, key: &str) -> Option<&str>

Trait Implementations

impl Clone for SaveHeader

fn clone(&self) -> SaveHeader

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SaveHeader

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

Formats the value using the given formatter.

impl Default for SaveHeader

fn default() -> Self

Returns the “default value” for a type.