From cbc67ae3887e54cd698eac7d51df47060dce142d Mon Sep 17 00:00:00 2001
From: Miloslav Ciz <drummyfish@disroot.org>
Date: Thu, 5 Jun 2025 22:19:59 +0200
Subject: [PATCH] Fix small bugs

---
 TODO.txt   |  2 ++
 renderer.h | 39 ++++++++++++++++++++++++++++++---------
 2 files changed, 32 insertions(+), 9 deletions(-)

diff --git a/TODO.txt b/TODO.txt
index 549b86f..ffed0bb 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -42,6 +42,8 @@ fuck issue trackers :D
 =========== HANDLED ==============
 
 - should drifting make a sound? NO NEED
+- devtest map, internal camera: reversing at start makes the car face completely
+  downwards which bugs the camera rotation! the shadow model too
 - particles in free camera mode are very big if far away from the car (maybe
   just turn them off in this mode?)
 - make helper header for PC frontends that use stdio for data file, parse
diff --git a/renderer.h b/renderer.h
index 911c017..0978398 100644
--- a/renderer.h
+++ b/renderer.h
@@ -207,6 +207,14 @@ void _LCR_rendererDrawFontPixel(int x, int y, uint16_t color)
 #endif
 }
 
+int _LCR_rendererGimbalDanger(S3L_Unit angle)
+{
+  return S3L_min(
+    S3L_abs(LCR_renderer.carModel->transform.rotation.x - S3L_F / 4),
+    S3L_abs(LCR_renderer.carModel->transform.rotation.x - (S3L_F - S3L_F / 4)))
+    < S3L_F / 100;
+}
+
 int LCR_rendererComputeTextWidth(const char *text, int size)
 {
   int r = 0;
@@ -1843,15 +1851,22 @@ void LCR_rendererCameraFollow(unsigned char distance)
 
     LCR_renderer.scene.camera.transform.translation.y += LCR_RENDERER_UNIT / 3;
 
-    LCR_renderer.scene.camera.transform.rotation =
-      LCR_renderer.carModel->transform.rotation;
+    if (!_LCR_rendererGimbalDanger( // kind of (imperfectly) deals with bugs
+      LCR_renderer.carModel->transform.rotation.x))
+    {
+      LCR_renderer.scene.camera.transform.rotation =
+        LCR_renderer.carModel->transform.rotation;
 
-    LCR_renderer.scene.camera.transform.rotation.x = -1 *
-      ((LCR_renderer.scene.camera.transform.rotation.x + S3L_FRACTIONS_PER_UNIT / 4) %
-      (S3L_FRACTIONS_PER_UNIT / 2) - S3L_FRACTIONS_PER_UNIT / 4);
+      LCR_renderer.scene.camera.transform.rotation.x = -1 *
+        ((LCR_renderer.scene.camera.transform.rotation.x +
+        S3L_FRACTIONS_PER_UNIT / 4) % (S3L_FRACTIONS_PER_UNIT / 2) -
+        S3L_FRACTIONS_PER_UNIT / 4);
 
-    LCR_renderer.scene.camera.transform.rotation.y += S3L_FRACTIONS_PER_UNIT / 2;
-    LCR_renderer.scene.camera.transform.rotation.z *= -1;
+      LCR_renderer.scene.camera.transform.rotation.y +=
+        S3L_FRACTIONS_PER_UNIT / 2;
+
+      LCR_renderer.scene.camera.transform.rotation.z *= -1;
+    }
 
     return;
   }
@@ -2130,8 +2145,9 @@ void LCR_rendererDraw3D(void)
     LCR_RENDERER_UNIT,LCR_RENDERER_UNIT,LCR_RENDERER_UNIT,
     LCR_RENDERER_UNIT);
 
-  LCR_renderer.shadowModel->transform.rotation.y =
-    LCR_renderer.carModel->transform.rotation.y;
+  if (!_LCR_rendererGimbalDanger(LCR_renderer.carModel->transform.rotation.x))
+    LCR_renderer.shadowModel->transform.rotation.y =
+      LCR_renderer.carModel->transform.rotation.y;
 #endif
 
   // first make sure rotations are in correct range:
@@ -2182,6 +2198,11 @@ void LCR_rendererDraw3D(void)
     m = LCR_renderer.ghostModel; 
   }
 
+#if LCR_SETTING_CAR_SHADOW
+  LCR_renderer.shadowModel->config.visible =
+    LCR_renderer.carModel->config.visible;
+#endif
+
   LCR_LOG2("3D rendering (start)");
 
 #if LCR_SETTING_POTATO_GRAPHICS