bevy_gizmos/
global.rs

1use std::sync::Mutex;
2
3use bevy_app::{App, Last, Plugin};
4use bevy_ecs::schedule::IntoScheduleConfigs;
5
6use crate::{
7    config::DefaultGizmoConfigGroup,
8    gizmos::{GizmoBuffer, Gizmos},
9    GizmoMeshSystems,
10};
11
12static GLOBAL_GIZMO: Mutex<GizmoBuffer<DefaultGizmoConfigGroup, ()>> =
13    Mutex::new(GizmoBuffer::new());
14
15/// Lets you use bevy gizmos outside of systems.
16pub struct GlobalGizmosPlugin;
17
18impl Plugin for GlobalGizmosPlugin {
19    fn build(&self, app: &mut App) {
20        app.add_systems(Last, flush_global_gizmos.before(GizmoMeshSystems));
21    }
22}
23
24fn flush_global_gizmos(mut gizmos: Gizmos) {
25    let mut buffer = GizmoBuffer::new();
26    {
27        core::mem::swap(&mut buffer, &mut GLOBAL_GIZMO.lock().unwrap());
28    }
29    gizmos.strip_positions.extend(buffer.strip_positions);
30    gizmos.strip_colors.extend(buffer.strip_colors);
31    gizmos.list_positions.extend(buffer.list_positions);
32    gizmos.list_colors.extend(buffer.list_colors);
33}
34
35/// A global gizmo context for use outside of bevy systems.
36///
37/// # Example
38/// ```
39/// # use bevy_gizmos::prelude::*;
40/// # use bevy_math::prelude::*;
41/// # use bevy_color::palettes::basic::WHITE;
42/// fn draw() {
43///     gizmo().sphere(Isometry3d::IDENTITY, 0.5, WHITE);
44/// }
45/// ```
46pub fn gizmo() -> impl core::ops::DerefMut<Target = GizmoBuffer<DefaultGizmoConfigGroup, ()>> {
47    GLOBAL_GIZMO.lock().unwrap()
48}
bevy_gizmos/global.rs

bevy_gizmos/
global.rs
