From 127e7441da732b6ede0c656241c40c77ab9079b6 Mon Sep 17 00:00:00 2001
From: Matthew Roush <matthew.roush@proton.me>
Date: Thu, 23 Jul 2026 03:50:11 -0400
Subject: [PATCH] [rshapes] Fix `DrawPolyLinesEx()` (#6004)

If `innerRadius` is less than 0, it causes the outline to overlap itself and even grow outside of the polygon's bounds when `thick` is greater than `radius`. Clamping `innerRadius` to 0 fixes these problems.
---
 src/rshapes.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/rshapes.c b/src/rshapes.c
index 7292212b1..0f4ae8ead 100644
--- a/src/rshapes.c
+++ b/src/rshapes.c
@@ -1260,10 +1260,12 @@ void DrawPolyLines(Vector2 center, int sides, float radius, float rotation, Colo
 
 void DrawPolyLinesEx(Vector2 center, int sides, float radius, float rotation, float thick, Color color)
 {
+    if (thick <= 0.0f) return;
+
     if (sides < 3) sides = 3;
     float centralAngle = rotation*DEG2RAD;
     float exteriorAngle = 360.0f/(float)sides*DEG2RAD;
-    float innerRadius = radius - (thick*cosf(DEG2RAD*exteriorAngle/2.0f));
+    float innerRadius = fmaxf(0.0f, radius - (thick*cosf(DEG2RAD*exteriorAngle/2.0f)));
 
 #if SUPPORT_QUADS_DRAW_MODE
     rlSetTexture(GetShapesTexture().id);