Add example to output a debugdump (#576)

Author: Vrixyz

bevy_rapier2d/Cargo.toml

@@ -67,6 +67,7 @@ approx = "0.5.1"
 glam = { version = "0.27", features = ["approx"] }
 bevy-inspector-egui = "0.25.1"
 bevy_egui = "0.28.0"
+bevy_mod_debugdump = "0.11"
 
 [package.metadata.docs.rs]
 # Enable all the features when building the docs on docs.rs

bevy_rapier2d/examples/debugdump2.rs

@@ -0,0 +1,33 @@
+//! Example using bevy_mod_debugdump to output a graph of systems execution order.
+//! run with:
+//! `cargo run --example debugdump2 > dump.dot  && dot -Tsvg dump.dot > dump.svg`
+
+use bevy::prelude::*;
+use bevy_mod_debugdump::{schedule_graph, schedule_graph_dot};
+use bevy_rapier2d::prelude::*;
+
+fn main() {
+    let mut app = App::new();
+    app.add_plugins((
+        DefaultPlugins,
+        RapierPhysicsPlugin::<NoUserData>::pixels_per_meter(100.0),
+        RapierDebugRenderPlugin::default(),
+    ));
+
+    let mut debugdump_settings = schedule_graph::Settings::default();
+    // Filter out some less relevant systems.
+    debugdump_settings.include_system =
+        Some(Box::new(|system: &(dyn System<In = (), Out = ()>)| {
+            if system.name().starts_with("bevy_pbr")
+                || system.name().starts_with("bevy_render")
+                || system.name().starts_with("bevy_gizmos")
+                || system.name().starts_with("bevy_winit")
+                || system.name().starts_with("bevy_sprite")
+            {
+                return false;
+            }
+            true
+        }));
+    let dot = schedule_graph_dot(&mut app, PostUpdate, &debugdump_settings);
+    println!("{dot}");
+}