Struct SchedulerState 

pub struct SchedulerState { /* private fields */ }

The runtime state of a scheduler instance.

Implementations

impl SchedulerState

Implements time retrieval and tick execution for SchedulerState.

pub fn current_time() -> f64

Returns the current high-resolution timestamp in seconds from performance.now().

Falls back to 0.0 when the global window or the performance.now API is unavailable (for example outside a browser window context).

The performance object and its now Function are page-lifetime globals, so they are cached in a thread-local on first use — the per-frame cost is one call0 crossing, not two Reflect::get + two JsValue::from_str allocations.

Returns

• f64 - The current time in seconds, or 0.0 when unavailable.

pub fn tick( &mut self, config: &SchedulerConfig, handler: &TickHandlerRc, tasks: Option<&TaskRegistryRc>, input_cell: Option<&InputStateCell>, )

Performs one tick of the fixed-timestep scheduler.

Calculates the elapsed frame time, clamps it to max_frame_time, accumulates it, then runs as many fixed updates as needed. Finally, computes the interpolation factor and calls the render callback. When an input cell is supplied, its per-frame edge state is cleared after the render callback so the next frame observes only the edges that happened during that frame.

Registered tasks are advanced immediately after each handler on_update call, not once per frame: a frame may run several fixed steps, and every one of them must advance the tasks by the same fixed_timestep that gameplay logic receives. Driving tasks after the handler callback keeps ordering explicit — gameplay logic registered in on_update observes tasks that have already advanced for this step.

Arguments

• &SchedulerConfig - The scheduler configuration.
• &TickHandlerRc - The handler receiving update and render callbacks.
• Option<&TaskRegistryRc> - The task registry to advance each fixed step, or None when no tasks are registered.
• Option<&InputStateCell> - The shared input state to close out, or None when no input listeners are registered.

impl SchedulerState

pub fn get_accumulator(&self) -> f64

pub fn get_last_time(&self) -> f64

pub fn get_running(&self) -> bool

pub fn get_raf_id(&self) -> Option<i32>

pub fn try_get_raf_id(&self) -> Option<i32>

pub fn get_update_count(&self) -> u64

pub fn get_frame_count(&self) -> u64

impl SchedulerState

pub fn new(last_time: f64) -> Self

Trait Implementations

impl Clone for SchedulerState

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SchedulerState

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

Formats the value using the given formatter.

impl Default for SchedulerState

Implements Default for SchedulerState as a freshly created stopped state.

fn default() -> SchedulerState

Constructs a default SchedulerState value.

Returns

• SchedulerState - A default-constructed instance with the documented initial state.

impl PartialEq for SchedulerState

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SchedulerState