disable v-sync, add warning, appease clippy

Author: tim-blackbird

crates/bevy_debug_draw/src/debug_draw.rs

@@ -93,7 +93,7 @@ impl DebugDraw {
         let br = (position + rotation * vec3(half_size.x, -half_size.y, 0.)).to_array();
         self.positions.extend([tl, tr, tr, br, br, bl, bl, tl]);
         self.colors
-            .extend(std::iter::repeat(color.as_linear_rgba_f32()).take(8))
+            .extend(std::iter::repeat(color.as_linear_rgba_f32()).take(8));
     }
 
     /// Draw a box.
@@ -115,7 +115,7 @@ impl DebugDraw {
             tlf, tlb, trf, trb, brf, brb, blf, blb, // Front to back
         ]);
         self.colors
-            .extend(std::iter::repeat(color.as_linear_rgba_f32()).take(24))
+            .extend(std::iter::repeat(color.as_linear_rgba_f32()).take(24));
     }
 
     /// Draw a line from `start` to `end`.

crates/bevy_debug_draw/src/lib.rs

@@ -105,13 +105,13 @@ fn update(
     mut meshes: ResMut<Assets<Mesh>>,
     mut commands: Commands,
 ) {
-    if let Some(mut mesh) = debug_draw
+    if let Some(mesh) = debug_draw
         .mesh_handle
         .as_ref()
         .and_then(|handle| meshes.get_mut(handle))
     {
         if config.enabled {
-            debug_draw.update_mesh(&mut mesh);
+            debug_draw.update_mesh(mesh);
         } else {
             debug_draw.clear();
             mesh.remove_attribute(Mesh::ATTRIBUTE_POSITION);

crates/bevy_debug_draw/src/pipeline_2d.rs

@@ -91,6 +91,7 @@ pub(crate) type DrawDebugLines = (
     DrawMesh2d,
 );
 
+#[allow(clippy::too_many_arguments)]
 pub(crate) fn queue(
     config: Res<DebugDrawConfig>,
     draw2d_functions: Res<DrawFunctions<Transparent2d>>,

crates/bevy_debug_draw/src/pipeline_3d.rs

@@ -128,6 +128,7 @@ pub(crate) type DrawDebugLines = (
     DrawMesh,
 );
 
+#[allow(clippy::too_many_arguments)]
 pub(crate) fn queue(
     opaque_3d_draw_functions: Res<DrawFunctions<Opaque3d>>,
     debug_line_pipeline: Res<DebugLinePipeline>,

examples/stress_tests/many_debug_lines.rs

@@ -3,11 +3,19 @@ use std::f32::consts::TAU;
 use bevy::{
     diagnostic::{Diagnostics, FrameTimeDiagnosticsPlugin},
     prelude::*,
+    window::PresentMode,
 };
 
 fn main() {
     App::new()
-        .add_plugins(DefaultPlugins)
+        .add_plugins(DefaultPlugins.set(WindowPlugin {
+            window: WindowDescriptor {
+                title: "Many Debug Lines".to_string(),
+                present_mode: PresentMode::AutoNoVsync,
+                ..default()
+            },
+            ..default()
+        }))
         .add_plugin(FrameTimeDiagnosticsPlugin::default())
         .insert_resource(Config {
             line_count: 50_000,
@@ -63,6 +71,8 @@ fn system(
 }
 
 fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
+    warn!(include_str!("warning_string.txt"));
+
     commands.spawn(Camera3dBundle {
         transform: Transform::from_xyz(3., 1., 5.).looking_at(Vec3::ZERO, Vec3::Y),
         ..default()