Struct FixedTimestep 

pub struct FixedTimestep {
    pub step: f64,
    pub tick_count: u64,
    /* private fields */
}

Fixed-timestep configuration stored as a resource.

The game loop ticks the schedule at a fixed rate (default 10 Hz for RTS). A time accumulator ensures deterministic simulation: the same inputs produce the same outputs regardless of frame rate.

Fields

step: f64

Seconds per tick (1.0 / tick_rate).

tick_count: u64

Total number of ticks executed.

Implementations

impl FixedTimestep

pub const MIN_HZ: f64 = 1.0

Minimum tick rate (1 Hz). Below this, use event-driven scheduling instead.

pub const MAX_HZ: f64 = 240.0

Maximum tick rate (240 Hz). Beyond this, the per-tick budget is too small for meaningful simulation work and risks death-spiraling the game loop.

pub fn new(tick_rate: f64) -> Self

Create a new fixed timestep at the given tick rate (Hz).

pub fn default_rts() -> Self

Create a 10 Hz timestep (default for RTS).

pub fn strategy() -> Self

20 Hz — good for turn-like strategy with smooth interpolation.

pub fn action() -> Self

30 Hz — action games, third-person, adventure.

pub fn fast() -> Self

60 Hz — platformers, FPS, fighting games.

pub fn tick_rate(&self) -> f64

Returns the tick rate in Hz.