Struct FrameStepper 

pub struct FrameStepper {
    pub acc_minutes: f64,
    /* private fields */
}

A host’s frame-to-steps state. Keep one per game and call advance once per display frame.

Fields

acc_minutes: f64

The game minutes owed and not yet stepped, carried to the next frame.

Implementations

impl FrameStepper

pub fn advance<S: StepSim>( &mut self, sim: &mut S, dt_ms: f64, minutes_per_second: f64, steady_clock: bool, step: bool, ) -> u32

Owes this frame’s game minutes and steps what is owed. dt_ms is the frame’s real length and minutes_per_second the game speed. Without steady_clock, time follows the canon day curve, whose pace changes through the day as the 1994 game’s clock does; with it, the rate is flat. The carry never exceeds MAX_CATCHUP_MINUTES, and no frame runs more than MAX_STEPS_PER_FRAME steps. With step false the minutes are owed but not stepped (a host still busy with its last batch). Returns the steps run.

Trait Implementations

impl Clone for FrameStepper

fn clone(&self) -> FrameStepper

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FrameStepper

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

Formats the value using the given formatter.

impl Default for FrameStepper

fn default() -> FrameStepper

Returns the “default value” for a type.

impl PartialEq for FrameStepper

fn eq(&self, other: &FrameStepper) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for FrameStepper