From 0c7ceb5d8d2ef002ad82b39d07d37493de2be4a5 Mon Sep 17 00:00:00 2001
From: nquidox <nquidox@gmail.com>
Date: Fri, 17 Apr 2026 16:25:26 +0300
Subject: [PATCH] draw arc by lines instead of arc_2d

---
 src/states/linear/systems.rs | 29 ++++++++++++++++++++++-------
 1 file changed, 22 insertions(+), 7 deletions(-)

diff --git a/src/states/linear/systems.rs b/src/states/linear/systems.rs
index d48d23c..af95c8a 100644
--- a/src/states/linear/systems.rs
+++ b/src/states/linear/systems.rs
@@ -22,13 +22,28 @@ pub fn draw_track_gizmos(track: Res<Track>, mut gizmos: Gizmos) {
             PathSegment::Turn { radius, left } => {
                 // вычисляем нормаль, центр, угол поворота арки и знак
                 let arc = helper_arc_calculator(current_pos, current_dir, *left, *radius);
+                
+                // арки никак не хотели вставать на свои места
+                // gizmos.arc_2d(
+                //     Isometry2d::new(arc.center, Rot2::degrees(current_angle)),
+                //     FRAC_PI_2 * arc.sweep_sign,
+                //     *radius,
+                //     GREEN,
+                // );
+                
+                // поэтому отрисовка поворота через линии
+                let steps = 16;
+                let mut prev_point = current_pos;
 
-                gizmos.arc_2d(
-                    Isometry2d::new(arc.center, Rot2::radians(arc.start_angle)),
-                    FRAC_PI_2,
-                    *radius,
-                    GREEN,
-                );
+                for i in 1..=steps {
+                    let t = i as f32 / steps as f32;
+                    let angle = arc.start_angle + arc.sweep_sign * FRAC_PI_2 * t;
+                    let point = arc.center + Vec2::from_angle(angle) * *radius;
+
+                    gizmos.line_2d(prev_point, point, GREEN);
+                    prev_point = point;
+                }
+                
                 current_pos = arc.end_pos;
                 current_dir = arc.normal;
             }
@@ -36,4 +51,4 @@ pub fn draw_track_gizmos(track: Res<Track>, mut gizmos: Gizmos) {
     }
     // рисуем финиш
     gizmos.circle_2d(current_pos, 5.0, Color::WHITE);
-}
+}
\ No newline at end of file