From 9beca068b91c184ba89934bb8e0f84da25a0d429 Mon Sep 17 00:00:00 2001
From: Matthew Roush <matthew.roush@proton.me>
Date: Mon, 10 Aug 2026 08:51:59 -0400
Subject: [PATCH] [rshapes] Fix drawing circle sectors (#6045)

* [rshapes] Fix drawing circle sectors

Functions that draw a sector of a circle would keep drawing segments past a full rotation, which looked bad.

* [rshapes] Change `DrawCircleSectorLines()` and `DrawRingLines()`

`DrawCircleSectorLines()` and `DrawRingLines()` drew the cap lines even when drawing a full circle, which seems undesirable.
---
 src/rshapes.c | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/src/rshapes.c b/src/rshapes.c
index 4e7374260..65040f452 100644
--- a/src/rshapes.c
+++ b/src/rshapes.c
@@ -1481,6 +1481,9 @@ void DrawCircleSector(Vector2 center, float radius, float startAngle, float endA
         endAngle = tmp;
     }
 
+    // Drawing a whole circle, things get weird without limiting the circle to 360 degrees
+    if (endAngle - startAngle >= 360.0f) endAngle = startAngle + 360.0f;
+
     int minSegments = (int)ceilf((endAngle - startAngle)/90);
 
     if (segments < minSegments)
@@ -1573,6 +1576,14 @@ void DrawCircleSectorLines(Vector2 center, float radius, float startAngle, float
         endAngle = tmp;
     }
 
+    bool showCapLines = true;
+    // Drawing a whole circle, things get weird without limiting the circle to 360 degrees
+    if (endAngle - startAngle >= 360.0f)
+    {
+        showCapLines = false;
+        endAngle = startAngle + 360.0f;
+    }
+
     int minSegments = (int)ceilf((endAngle - startAngle)/90);
 
     if (segments < minSegments)
@@ -1586,7 +1597,6 @@ void DrawCircleSectorLines(Vector2 center, float radius, float startAngle, float
 
     float stepLength = (endAngle - startAngle)/(float)segments;
     float angle = startAngle;
-    bool showCapLines = true;
 
     rlBegin(RL_LINES);
         if (showCapLines)
@@ -1704,6 +1714,9 @@ void DrawRing(Vector2 center, float innerRadius, float outerRadius, float startA
         endAngle = tmp;
     }
 
+    // Drawing a whole circle, things get weird without limiting the circle to 360 degrees
+    if (endAngle - startAngle >= 360.0f) endAngle = startAngle + 360.0f;
+
     int minSegments = (int)ceilf((endAngle - startAngle)/90);
 
     if (segments < minSegments)
@@ -1795,6 +1808,14 @@ void DrawRingLines(Vector2 center, float innerRadius, float outerRadius, float s
         endAngle = tmp;
     }
 
+    bool showCapLines = true;
+    // Drawing a whole circle, things get weird without limiting the circle to 360 degrees
+    if (endAngle - startAngle >= 360.0f)
+    {
+        showCapLines = false;
+        endAngle = startAngle + 360.0f;
+    }
+
     int minSegments = (int)ceilf((endAngle - startAngle)/90);
 
     if (segments < minSegments)
@@ -1814,7 +1835,6 @@ void DrawRingLines(Vector2 center, float innerRadius, float outerRadius, float s
 
     float stepLength = (endAngle - startAngle)/(float)segments;
     float angle = startAngle;
-    bool showCapLines = true;
 
     rlBegin(RL_LINES);
         if (showCapLines)