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),
    HoverChanged(Option<ID>, Option<ID>),
    Nothing,
}
Expand description

The result of a World handling an event

Variants

ClickedFreeSpace(Pt2D)

Tuple Fields

0: Pt2D

A left click occurred while not hovering on any object

Dragging

Fields

obj: ID
dx: f64
dy: f64
cursor: Pt2D

An object is being dragged. The given offsets are relative to the previous dragging event. The current position of the cursor is included. If you’re dragging a large object, applying the offset will likely feel more natural than centering on the cursor.

Keypress(&'static str, ID)

Tuple Fields

0: &'static str
1: ID

While hovering on an object with a defined hotkey, that key was pressed.

ClickedObject(ID)

Tuple Fields

0: ID

A hoverable object was clicked

HoverChanged(Option<ID>, Option<ID>)

Tuple Fields

0: Option<ID>
1: Option<ID>

The object being hovered on changed from (something before, to something after). Note this transition may also occur outside of event – such as during delete or initialize_hover.

TODO Bug in the map_editor: If you delete one object, then the caller does initialize_hover and we immediately wind up on another road beneath, we don’t detect this and start showing road points.

Nothing

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.

Like map_id, but the transformation may fail.

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Auto Trait Implementations

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