Struct PointerDrag 

pub struct PointerDrag {
    pub entity: Entity,
    pub pointer: Pointer,
    pub button: PointerButton,
    pub distance: Vec2,
    pub delta: Vec2,
}

Available on crate feature bevy_picking only.

Fires while the target entity is being dragged.

Fields

entity: Entity

The entity this pointer event happened for.

pointer: Pointer

The pointer that triggered this event

button: PointerButton

Pointer button pressed and moved to trigger this event.

distance: Vec2

The total distance vector of a drag, measured from drag start to the current position.

This is stored in screen pixels, not world coordinates. Screen pixels go from top-left to bottom-right, whereas (in 2D) world coordinates go from bottom-left to top-right. Consider using methods on Camera to convert from screen-space to world-space.

delta: Vec2

The change in position since the last drag event.

This is stored in screen pixels, not world coordinates. Screen pixels go from top-left to bottom-right, whereas (in 2D) world coordinates go from bottom-left to top-right. Consider using methods on Camera to convert from screen-space to world-space.

Trait Implementations

impl Clone for PointerDrag

fn clone(&self) -> PointerDrag

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PointerDrag

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

Formats the value using the given formatter.

impl EntityEvent for PointerDrag

where PointerDrag: Send + Sync + 'static,

fn event_target(&self) -> Entity

The Entity “target” of this EntityEvent. When triggered, this will run observers that watch for this specific entity.

impl Event for PointerDrag

where PointerDrag: Send + Sync + 'static,

type Trigger<'a> = PropagateEntityTrigger<true, PointerDrag, PointerTraversal>

Defines which observers will run, what data will be passed to them, and the order they will be run in. See Trigger for more info.

impl FromArg for PointerDrag

type This<'from_arg> = PointerDrag

The type to convert into.

fn from_arg( arg: Arg<'_>, ) -> Result<<PointerDrag as FromArg>::This<'_>, ArgError>

Creates an item from an argument.

impl FromReflect for PointerDrag

fn from_reflect(reflect: &(dyn PartialReflect + 'static)) -> Option<PointerDrag>

Constructs a concrete instance of Self from a reflected value.

fn take_from_reflect( reflect: Box<dyn PartialReflect>, ) -> Result<Self, Box<dyn PartialReflect>>

Attempts to downcast the given value to Self using, constructing the value using from_reflect if that fails.

impl GetOwnership for PointerDrag

fn ownership() -> Ownership

Returns the ownership of Self.

impl GetTypeRegistration for PointerDrag

fn get_type_registration() -> TypeRegistration

Returns the default TypeRegistration for this type.

fn register_type_dependencies(registry: &mut TypeRegistry)

Registers other types needed by this type.

impl IntoReturn for PointerDrag

fn into_return<'into_return>(self) -> Return<'into_return>

where PointerDrag: 'into_return,

Converts Self into a Return value.

impl Message for PointerDrag

where PointerDrag: Send + Sync + 'static,

impl PartialEq for PointerDrag

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

Equality operator ==.

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

Inequality operator !=.

impl PartialReflect for PointerDrag

fn get_represented_type_info(&self) -> Option<&'static TypeInfo>

Returns the TypeInfo of the type represented by this value.

fn try_apply( &mut self, value: &(dyn PartialReflect + 'static), ) -> Result<(), ApplyError>

Tries to apply a reflected value to this value.

fn reflect_kind(&self) -> ReflectKind

Returns a zero-sized enumeration of “kinds” of type.

fn reflect_ref(&self) -> ReflectRef<'_>

Returns an immutable enumeration of “kinds” of type.

fn reflect_mut(&mut self) -> ReflectMut<'_>

Returns a mutable enumeration of “kinds” of type.

fn reflect_owned(self: Box<PointerDrag>) -> ReflectOwned

Returns an owned enumeration of “kinds” of type.

fn try_into_reflect( self: Box<PointerDrag>, ) -> Result<Box<dyn Reflect>, Box<dyn PartialReflect>>

Attempts to cast this type to a boxed, fully-reflected value.

fn try_as_reflect(&self) -> Option<&(dyn Reflect + 'static)>

Attempts to cast this type to a fully-reflected value.

fn try_as_reflect_mut(&mut self) -> Option<&mut (dyn Reflect + 'static)>

Attempts to cast this type to a mutable, fully-reflected value.

fn into_partial_reflect(self: Box<PointerDrag>) -> Box<dyn PartialReflect>

Casts this type to a boxed, reflected value.

fn as_partial_reflect(&self) -> &(dyn PartialReflect + 'static)

Casts this type to a reflected value.

fn as_partial_reflect_mut(&mut self) -> &mut (dyn PartialReflect + 'static)

Casts this type to a mutable, reflected value.

fn reflect_partial_eq( &self, value: &(dyn PartialReflect + 'static), ) -> Option<bool>

Returns a “partial equality” comparison result.

fn reflect_partial_cmp( &self, value: &(dyn PartialReflect + 'static), ) -> Option<Ordering>

Returns a “partial comparison” result.

fn reflect_clone(&self) -> Result<Box<dyn Reflect>, ReflectCloneError>

Attempts to clone Self using reflection.

fn apply(&mut self, value: &(dyn PartialReflect + 'static))

Applies a reflected value to this value.

fn to_dynamic(&self) -> Result<Box<dyn PartialReflect>, ReflectCloneError>

Converts this reflected value into its dynamic representation based on its kind.

fn reflect_clone_and_take<T>(&self) -> Result<T, ReflectCloneError>

where T: 'static, Self: Sized + TypePath,

For a type implementing PartialReflect, combines reflect_clone and take in a useful fashion, automatically constructing an appropriate ReflectCloneError if the downcast fails.

fn reflect_hash(&self) -> Option<u64>

Returns a hash of the value (which includes the type).

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

Debug formatter for the value.

fn is_dynamic(&self) -> bool

Indicates whether or not this type is a dynamic type.

impl PointerEvent for PointerDrag

fn pointer(&self) -> &Pointer

Returns the Pointer stored on this EntityEvent.

impl Reflect for PointerDrag

fn into_any(self: Box<PointerDrag>) -> Box<dyn Any>

Returns the value as a Box<dyn Any>.

fn as_any(&self) -> &(dyn Any + 'static)

Returns the value as a &dyn Any.

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Returns the value as a &mut dyn Any.

fn into_reflect(self: Box<PointerDrag>) -> Box<dyn Reflect>

Casts this type to a boxed, fully-reflected value.

fn as_reflect(&self) -> &(dyn Reflect + 'static)

Casts this type to a fully-reflected value.

fn as_reflect_mut(&mut self) -> &mut (dyn Reflect + 'static)

Casts this type to a mutable, fully-reflected value.

fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>

Performs a type-checked assignment of a reflected value to this value.

impl SetEntityEventTarget for PointerDrag

where PointerDrag: Send + Sync + 'static,

fn set_event_target(&mut self, entity: Entity)

Sets the Entity “target” of this EntityEvent. When triggered, this will run observers that watch for this specific entity.

impl Struct for PointerDrag

fn field(&self, name: &str) -> Option<&(dyn PartialReflect + 'static)>

Gets a reference to the value of the field named name as a &dyn PartialReflect.

fn field_mut( &mut self, name: &str, ) -> Option<&mut (dyn PartialReflect + 'static)>

Gets a mutable reference to the value of the field named name as a &mut dyn PartialReflect.

fn field_at(&self, index: usize) -> Option<&(dyn PartialReflect + 'static)>

Gets a reference to the value of the field with index index as a &dyn PartialReflect.

fn field_at_mut( &mut self, index: usize, ) -> Option<&mut (dyn PartialReflect + 'static)>

Gets a mutable reference to the value of the field with index index as a &mut dyn PartialReflect.

fn name_at(&self, index: usize) -> Option<&str>

Gets the name of the field with index index.

fn index_of_name(&self, name: &str) -> Option<usize>

Gets the index of the field with the given name.

fn field_len(&self) -> usize

Returns the number of fields in the struct.

fn iter_fields(&self) -> FieldIter<'_>

Returns an iterator over the values of the reflectable fields for this struct.

fn to_dynamic_struct(&self) -> Result<DynamicStruct, ReflectCloneError>

Creates a new DynamicStruct from this struct.

fn get_represented_struct_info(&self) -> Option<&'static StructInfo>

Will return None if TypeInfo is not available.

impl StructuralPartialEq for PointerDrag

impl TypePath for PointerDrag

fn type_path() -> &'static str

Returns the fully qualified path of the underlying type.

fn short_type_path() -> &'static str

Returns a short, pretty-print enabled path to the type.

fn type_ident() -> Option<&'static str>

Returns the name of the type, or None if it is anonymous.

fn crate_name() -> Option<&'static str>

Returns the name of the crate the type is in, or None if it is anonymous.

fn module_path() -> Option<&'static str>

Returns the path to the module the type is in, or None if it is anonymous.

impl Typed for PointerDrag

fn type_info() -> &'static TypeInfo

Returns the compile-time info for the underlying type.