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[rshapes] Fix DrawPolyLinesEx()

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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.
This commit is contained in:
Matthew Roush 2026-07-22 01:14:18 -04:00
commit 05236c0cd7
1 changed files with 3 additions and 1 deletions
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src/rshapes.c
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@ -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) void DrawPolyLinesEx(Vector2 center, int sides, float radius, float rotation, float thick, Color color)
{ {
if (thick <= 0.0f) return;
if (sides < 3) sides = 3; if (sides < 3) sides = 3;
float centralAngle = rotation*DEG2RAD; float centralAngle = rotation*DEG2RAD;
float exteriorAngle = 360.0f/(float)sides*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 #if SUPPORT_QUADS_DRAW_MODE
rlSetTexture(GetShapesTexture().id); rlSetTexture(GetShapesTexture().id);