Struct System 

pub struct System<Api = Default>(/* private fields */);

Implementations

impl<Api: Api> System<Api>

pub fn set_update_callback<'u, U, F>( &self, on_update: F, userdata: U, ) -> Handler<'u, F, U>

where U: 'u, F: 'u + FnMut(&mut U) -> UpdateCtrl,

Takes any function and userdata, registers callback in the system and returns this function with userdata wrapped into the Handler with [Pin] inside.

For register a fn-ptr you could better use [set_update_callback_static].

Safety is ensured by Handler, that resets the system registered update handler when drop.

Wrapping sys::ffi::playdate_sys::setUpdateCallback

pub fn set_update_callback_boxed<'u, U, F>(&self, on_update: F, userdata: U)

where U: 'u, F: 'u + FnMut(&mut U) -> UpdateCtrl,

Consumes and leaks an any function with userdata into the Box, registers callback in the system.

For register a fn-ptr you could better use [set_update_callback_static].

Safety is guaranteed by the caller.

See also System::set_update_callback, it prevents leaks and more safe.

Wrapping sys::ffi::playdate_sys::setUpdateCallback

pub fn set_update_callback_static<U: 'static>( &self, on_update: Option<fn(userdata: &mut U) -> UpdateCtrl>, userdata: U, )

Consumes and leaks function on_update and userdata, wraps it into the Box, then registers callback.

See also System::set_update_callback, it prevents leaks and more safe.

Wrapping sys::ffi::playdate_sys::setUpdateCallback

pub fn set_update_handler<'t, U: 'static + Update>( &'t self, handler: Option<&'static mut U>, )

where &'t Api: Api,

Executes handler’s Update::set_update_handler_with with this inner api.

Wrapping sys::ffi::playdate_sys::setUpdateCallback

impl System<Default>

pub fn Default() -> Self

Creates default System without type parameter requirement.

Uses ZST api::Default.

impl System<Cache>

pub fn Cached() -> Self

Creates System without type parameter requirement.

Uses api::Cache.

impl<Api: Default + Api> System<Api>

pub fn new() -> Self

impl<Api: Api> System<Api>

pub fn new_with(api: Api) -> Self

pub const fn inner(&self) -> Api

where Api: Copy,

impl<Api: Api> System<Api>

pub fn language(&self) -> PDLanguage

Equivalent to sys::ffi::playdate_sys::getLanguage

pub fn current_time(&self) -> Duration

Equivalent to sys::ffi::playdate_sys::getCurrentTimeMilliseconds

pub fn current_time_ms(&self) -> c_uint

Equivalent to sys::ffi::playdate_sys::getCurrentTimeMilliseconds

pub fn seconds_since_epoch(&self) -> c_uint

Returns the number of seconds elapsed since midnight (hour 0), January 1, 2000.

See also System::seconds_since_epoch_with_ms.

Equivalent to sys::ffi::playdate_sys::getSecondsSinceEpoch

pub fn seconds_since_epoch_with_ms(&self) -> (c_uint, c_uint)

Returns current time as (seconds, milliseconds), elapsed since midnight (hour 0), January 1, 2000.

Equivalent to sys::ffi::playdate_sys::getSecondsSinceEpoch

pub fn time_since_epoch(&self) -> Duration

Equivalent to sys::ffi::playdate_sys::getSecondsSinceEpoch

pub fn draw_fps(&self, x: c_int, y: c_int)

Equivalent to sys::ffi::playdate_sys::drawFPS

pub fn flipped(&self) -> bool

Equivalent to sys::ffi::playdate_sys::getFlipped

pub fn set_auto_lock_disabled(&self, disable: bool)

Equivalent to sys::ffi::playdate_sys::setAutoLockDisabled

pub fn reduce_flashing(&self) -> bool

Equivalent to sys::ffi::playdate_sys::getReduceFlashing

pub fn elapsed_time_secs(&self) -> c_float

Returns the number of seconds since [reset_elapsed_time] was called.

The value is a floating-point number with microsecond accuracy.

Equivalent to sys::ffi::playdate_sys::getElapsedTime

pub fn elapsed_time(&self) -> Duration

Equivalent to sys::ffi::playdate_sys::getElapsedTime

pub fn reset_elapsed_time(&self)

Equivalent to sys::ffi::playdate_sys::resetElapsedTime

pub fn battery_percentage(&self) -> c_float

Equivalent to sys::ffi::playdate_sys::getBatteryPercentage

pub fn battery_voltage(&self) -> c_float

Equivalent to sys::ffi::playdate_sys::getBatteryVoltage

pub fn timezone_offset(&self) -> i32

Equivalent to sys::ffi::playdate_sys::getTimezoneOffset

pub fn should_display_24_hour_time(&self) -> bool

Equivalent to sys::ffi::playdate_sys::shouldDisplay24HourTime

pub fn convert_epoch_to_date_time(&self, epoch: u32) -> PDDateTime

Equivalent to sys::ffi::playdate_sys::convertEpochToDateTime

pub fn convert_epoch_to_date_time_to(&self, epoch: u32, dt: &mut PDDateTime)

Equivalent to sys::ffi::playdate_sys::convertEpochToDateTime

pub fn convert_date_time_to_epoch(&self, dt: &PDDateTime) -> u32

Equivalent to sys::ffi::playdate_sys::convertDateTimeToEpoch

pub fn set_serial_message_callback<F>(&self, callback: Option<F>)

where F: 'static + FnMut(String) + Sized,

Equivalent to sys::ffi::playdate_sys::setSerialMessageCallback

Trait Implementations

impl<Api: Clone> Clone for System<Api>

fn clone(&self) -> System<Api>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<Api: Debug> Debug for System<Api>

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

Formats the value using the given formatter.

impl<Api: Default + Api> Default for System<Api>

fn default() -> Self

Returns the “default value” for a type.

impl<Api: Copy> Copy for System<Api>

Layout

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.