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EventSignal

mittens_engine::engine::ecs::rx

Enum EventSignal 

Source 
pub enum EventSignal {

Show 24 variants    ParentChanged {
        child: ComponentId,
        old_parent: Option<ComponentId>,
        new_parent: Option<ComponentId>,
    },
    RayIntersected {
        raycaster: ComponentId,
        renderable: ComponentId,
        t: f32,
        origin: [f32; 3],
        dir: [f32; 3],
    },
    CollisionStarted {
        a: ComponentId,
        b: ComponentId,
        delta: [f32; 3],
    },
    CollisionEnded {
        a: ComponentId,
        b: ComponentId,
        delta: [f32; 3],
    },
    DragStart {
        raycaster: ComponentId,
        renderable: ComponentId,
        hit_point: [f32; 3],
        ray_dir_world: [f32; 3],
        screen_pos_px: Option<(f32, f32)>,
    },
    DragMove {
        raycaster: ComponentId,
        renderable: ComponentId,
        hit_point: [f32; 3],
        delta_world: [f32; 3],
        screen_pos_px: Option<(f32, f32)>,
        screen_delta_px: Option<(f32, f32)>,
    },
    DragEnd {
        raycaster: ComponentId,
        renderable: ComponentId,
        hit_point: Option<[f32; 3]>,
    },
    Click {
        raycaster: ComponentId,
        renderable: ComponentId,
        hit_point: [f32; 3],
        screen_pos_px: Option<(f32, f32)>,
    },
    SelectionChanged {
        selection_root: ComponentId,
        mode: SelectionMode,
        selected_entries: Vec<SelectionEntry>,
        selected_component: Option<ComponentId>,
        selected_payload: Option<ComponentId>,
    },
    SelectionAdded {
        selection_root: ComponentId,
        entry: SelectionEntry,
    },
    SelectionRemoved {
        selection_root: ComponentId,
        entry: SelectionEntry,
    },
    SelectionCleared {
        selection_root: ComponentId,
    },
    Scrolling {
        scroll_component: ComponentId,
        drag_scope: ComponentId,
        delta_world: [f32; 3],
        scroll_offset: f32,
        max_scroll: f32,
        viewport_height: f32,
        content_height: f32,
    },
    TextInputFocusChanged {
        old: Option<ComponentId>,
        new: Option<ComponentId>,
    },
    TextInputChanged {
        component_id: ComponentId,
        text: String,
        caret: usize,
    },
    LayoutRootSizeAvailable {
        layout_id: ComponentId,
        width_wu: f32,
        height_wu: f32,
    },
    DataEvent {
        name: String,
        payload: Option<ComponentId>,
    },
    XrButtonDown {
        source_component: ComponentId,
        hand: ControllerHand,
        control: XrButtonControl,
        value: f32,
    },
    XrButtonUp {
        source_component: ComponentId,
        hand: ControllerHand,
        control: XrButtonControl,
        value: f32,
    },
    XrButtonChanged {
        source_component: ComponentId,
        hand: ControllerHand,
        control: XrButtonControl,
        value: f32,
    },
    XrAxisChanged {
        source_component: ComponentId,
        hand: ControllerHand,
        control: XrAxisControl,
        value: [f32; 2],
    },
    HttpRequest {
        request_id: u64,
        method: String,
        path: String,
        query: Option<String>,
        url: String,
        headers: Vec<(String, String)>,
        body_text: String,
        remote_addr: Option<String>,
    },
    HttpResponse {
        request_id: u64,
        status: u16,
        ok: bool,
        headers: Vec<(String, String)>,
        body_text: String,
        url: String,
    },
    HttpError {
        request_id: Option<u64>,
        phase: String,
        message: String,
        url: Option<String>,
        bind_addr: Option<String>,
    },

}
Expand description

Event signal: a fact/observation.

Variants§

§

ParentChanged

Topology changed.

Fields

§child: ComponentId
§old_parent: Option<ComponentId>
§new_parent: Option<ComponentId>
§

RayIntersected

A raycast intersected a renderable.

Fields

§raycaster: ComponentId
§renderable: ComponentId
§t: f32
§origin: [f32; 3]
§dir: [f32; 3]
§

CollisionStarted

Two collision objects began overlapping this tick.

delta is the vector from a to b in world space: pos(b) - pos(a).

Fields

§a: ComponentId
§b: ComponentId
§delta: [f32; 3]
§

CollisionEnded

Two collision objects stopped overlapping this tick.

delta is the last known vector from a to b in world space: pos(b) - pos(a).

Fields

§a: ComponentId
§b: ComponentId
§delta: [f32; 3]
§

DragStart

A drag gesture started.

Fields

§raycaster: ComponentId
§renderable: ComponentId
§hit_point: [f32; 3]
§ray_dir_world: [f32; 3]

World-space ray direction at the time the drag started.

This makes DragStart self-contained for consumers that need a stable plane normal (e.g. gizmo debug drag plane / plane-projection drags) without also observing RayIntersected events.

§screen_pos_px: Option<(f32, f32)>

Optional screen-space cursor/pointer position in pixels.

Present for screen-space pointers (mouse/touch). Absent for non-screen pointers.

§

DragMove

A drag gesture moved this tick.

delta_world is the world-space movement since the last DragMove for this gesture.

Fields

§raycaster: ComponentId
§renderable: ComponentId
§hit_point: [f32; 3]
§delta_world: [f32; 3]
§screen_pos_px: Option<(f32, f32)>

Optional screen-space cursor/pointer position in pixels.

§screen_delta_px: Option<(f32, f32)>

Optional pixel delta since the previous DragMove for this drag.

Present for screen-space pointers (mouse/touch) when previous screen position is known. Absent for non-screen pointers.

§

DragEnd

A drag gesture ended.

Fields

§raycaster: ComponentId
§renderable: ComponentId
§hit_point: Option<[f32; 3]>
§

Click

A click: a drag gesture that ended close to where it started.

Emitted by GestureSystem at DragEnd time when the net pointer displacement is below the click threshold (8 px screen-space, or 0.02 world units for non-screen pointers).

All intermediate DragMove events are still emitted; Click fires in addition to DragEnd, on the same scope (the hit renderable at press time).

Payload mirrors DragStart — the thing clicked is what was under the pointer at press.

Fields

§raycaster: ComponentId
§renderable: ComponentId
§hit_point: [f32; 3]
§screen_pos_px: Option<(f32, f32)>
§

SelectionChanged

A selection scope changed.

Fields

§selection_root: ComponentId
§mode: SelectionMode
§selected_entries: Vec<SelectionEntry>
§selected_component: Option<ComponentId>
§selected_payload: Option<ComponentId>
§

SelectionAdded

An entry was added to a selection scope.

Fields

§selection_root: ComponentId
§entry: SelectionEntry
§

SelectionRemoved

An entry was removed from a selection scope.

Fields

§selection_root: ComponentId
§entry: SelectionEntry
§

SelectionCleared

A selection scope was cleared.

Fields

§selection_root: ComponentId
§

Scrolling

A scrolling component consumed drag motion and updated its offset.

Scoped to the ScrollingComponent so downstream systems can subscribe to scroll state changes through the scroll owner rather than the ancestor drag-capture surface.

Fields

§scroll_component: ComponentId
§drag_scope: ComponentId
§delta_world: [f32; 3]
§scroll_offset: f32
§max_scroll: f32
§viewport_height: f32
§content_height: f32
§

TextInputFocusChanged

§

TextInputChanged

Fields

§component_id: ComponentId
§text: String
§caret: usize
§

LayoutRootSizeAvailable

A LayoutComponent subtree finished layout and its computed size is now available in world units. Scoped to the LayoutComponent’s ComponentId.

Fields

§layout_id: ComponentId
§width_wu: f32
§height_wu: f32
§

DataEvent

A named data event for cross-subtree communication.

The name identifies the event kind (e.g. “asset_selected”, “tool_selected”). The scope on the Signal envelope identifies the shared ancestor on which handlers are registered. payload is an optional ComponentId reference.

Fields

§name: String
§payload: Option<ComponentId>
§

XrButtonDown

Fields

§source_component: ComponentId
§hand: ControllerHand
§control: XrButtonControl
§value: f32
§

XrButtonUp

Fields

§source_component: ComponentId
§hand: ControllerHand
§control: XrButtonControl
§value: f32
§

XrButtonChanged

Fields

§source_component: ComponentId
§hand: ControllerHand
§control: XrButtonControl
§value: f32
§

XrAxisChanged

Fields

§source_component: ComponentId
§hand: ControllerHand
§control: XrAxisControl
§value: [f32; 2]
§

HttpRequest

Fields

§request_id: u64
§method: String
§path: String
§query: Option<String>
§url: String
§headers: Vec<(String, String)>
§body_text: String
§remote_addr: Option<String>
§

HttpResponse

Fields

§request_id: u64
§status: u16
§ok: bool
§headers: Vec<(String, String)>
§body_text: String
§url: String
§

HttpError

Fields

§request_id: Option<u64>
§phase: String
§message: String
§url: Option<String>
§bind_addr: Option<String>

Implementations§

Trait Implementations§

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impl Clone for EventSignal

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fn clone(&self) -> EventSignal

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for EventSignal

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

Formats the value using the given formatter. Read more

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