Enum widgetry::mapspace::WorldOutcome [−][src]
pub enum WorldOutcome<ID: ObjectID> {
ClickedFreeSpace(Pt2D),
Dragging {
obj: ID,
dx: f64,
dy: f64,
cursor: Pt2D,
},
Keypress(&'static str, ID),
ClickedObject(ID),
Nothing,
}
Expand description
The result of a World
handling an event
Variants
ClickedFreeSpace(Pt2D)
A left click occurred while not hovering on any object
Tuple Fields of ClickedFreeSpace
0: Pt2D
An object is being dragged. The given offsets are relative to the previous dragging event. The current position of the cursor is included.
Keypress(&'static str, ID)
While hovering on an object with a defined hotkey, that key was pressed.
Tuple Fields of Keypress
0: &'static str
1: ID
A hoverable object was clicked
Nothing interesting happened
Implementations
If the outcome references some ID, transform it to another type. This is useful when some component owns a World that contains a few different types of objects, some of which are managed by another component that only cares about its IDs.
pub fn maybe_map_id<O: ObjectID, F: Fn(I) -> Option<O>>(
self,
f: F
) -> Option<WorldOutcome<O>>
pub fn maybe_map_id<O: ObjectID, F: Fn(I) -> Option<O>>(
self,
f: F
) -> Option<WorldOutcome<O>>
Like map_id
, but the transformation may fail.
Trait Implementations
Auto Trait Implementations
impl<ID> RefUnwindSafe for WorldOutcome<ID> where
ID: RefUnwindSafe,
impl<ID> Send for WorldOutcome<ID> where
ID: Send,
impl<ID> Sync for WorldOutcome<ID> where
ID: Sync,
impl<ID> Unpin for WorldOutcome<ID> where
ID: Unpin,
impl<ID> UnwindSafe for WorldOutcome<ID> where
ID: UnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more
impl<T> Downcast for T where
T: Any,
impl<T> Downcast for T where
T: Any,
Convert Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read more
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
Convert Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read more
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert &mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read more
type Output = T
type Output = T
Should always be Self