From eeebdbd2722a311e4a21da816a4794ba54220070 Mon Sep 17 00:00:00 2001
From: nquidox <nquidox@gmail.com>
Date: Sat, 18 Apr 2026 21:55:27 +0300
Subject: [PATCH] moved critical systems to fixed update schedule

---
 src/states/linear/plugin.rs | 69 +++++++++++++++++++++----------------
 1 file changed, 39 insertions(+), 30 deletions(-)

diff --git a/src/states/linear/plugin.rs b/src/states/linear/plugin.rs
index b02d144..3b5a724 100644
--- a/src/states/linear/plugin.rs
+++ b/src/states/linear/plugin.rs
@@ -13,34 +13,43 @@ pub enum LinearUpdateSet {
 
 impl Plugin for LinearPlayPlugin {
     fn build(&self, app: &mut App) {
-        app
-            .add_systems(OnEnter(LinearPlayState), (setup, spawn_linear_cannon).chain())
-            .add_systems(OnEnter(LinearGameRestart), linear_restart)
-            .add_plugins(LinearUIPlugin)
-            .configure_sets(
-                Update,
-                LinearUpdateSet::Track.run_if(in_state(LinearPlayState)),
-            )
-            .add_systems(
-                Update,
-                (
-                    toggle_debug_systems,
-                    draw_track_gizmos,                    
-                    draw_grid,
-                    // draw_cannon_laser,
-                    //несколько систем с соблюдением порядка
-                    calculate_projectile_hits,
-                    linear_move_projectiles,
-                    cycle_cannon_balls,
-                    update_linear_cannon_preview,
-                    spawn_projectile_from_cannon,
-                    spawn_round_ball,
-                    move_round_balls,
-                    rotate_linear_cannon,
-                )
-                    .in_set(LinearUpdateSet::Track),
-            )
-            .add_systems(OnExit(LinearPlayState), cleanup);
+        app.add_systems(
+            OnEnter(LinearPlayState),
+            (setup, spawn_linear_cannon).chain(),
+        )
+        .add_systems(OnEnter(LinearGameRestart), linear_restart)
+        .add_plugins(LinearUIPlugin)
+        .configure_sets(
+            Update,
+            LinearUpdateSet::Track.run_if(in_state(LinearPlayState)),
+        ).configure_sets(
+            FixedUpdate,
+            LinearUpdateSet::Track.run_if(in_state(LinearPlayState)),
+        )
+        .add_systems(
+            Update,
+            (
+                toggle_debug_systems,
+                draw_track_gizmos,
+                draw_grid,
+                // draw_cannon_laser,
+                //несколько систем с соблюдением порядка
+                cycle_cannon_balls,
+                update_linear_cannon_preview,
+                spawn_projectile_from_cannon,
+                rotate_linear_cannon,
+            ).in_set(LinearUpdateSet::Track),
+        )
+        .add_systems(
+            FixedUpdate,
+            (
+                spawn_round_ball,
+                move_round_balls,
+                calculate_projectile_hits,
+                linear_move_projectiles,
+            ).in_set(LinearUpdateSet::Track),
+        )
+        .add_systems(OnExit(LinearPlayState), cleanup);
     }
 }
 
@@ -51,8 +60,8 @@ fn setup(mut commands: Commands) {
     commands.insert_resource(build_track);
     commands.insert_resource(precalculated_track);
     commands.insert_resource(build_linear_cannon_state());
-    
-    let debug_config = LinearDebugConfig{
+
+    let debug_config = LinearDebugConfig {
         toggle_track: true,
         toggle_grid: true,
         toggle_laser: false,