From afe688e6ab3e021feca8c398d31469109a32a41b Mon Sep 17 00:00:00 2001
From: vaxerski <43317083+vaxerski@users.noreply.github.com>
Date: Sat, 26 Nov 2022 19:37:20 +0000
Subject: allow 360 degrees of freedom in gradients

---
 src/render/shaders/Border.hpp | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

(limited to 'src/render/shaders')

diff --git a/src/render/shaders/Border.hpp b/src/render/shaders/Border.hpp
index fc48e108..c2be9880 100644
--- a/src/render/shaders/Border.hpp
+++ b/src/render/shaders/Border.hpp
@@ -23,7 +23,24 @@ vec4 getColorForCoord(vec2 normalizedCoord) {
     if (gradientLength < 2)
         return gradient[0];
 
-    float sine = sin(angle);
+    float finalAng = 0.0;
+
+    if (angle > 4.71 /* 270 deg */) {
+        normalizedCoord[1] = 1.0 - normalizedCoord[1];
+        finalAng = 6.28 - angle;
+    } else if (angle > 3.14 /* 180 deg */) {
+        normalizedCoord[0] = 1.0 - normalizedCoord[0];
+        normalizedCoord[1] = 1.0 - normalizedCoord[1];
+        finalAng = angle - 3.14;
+    } else if (angle > 1.57 /* 90 deg */) {
+        normalizedCoord[0] = 1.0 - normalizedCoord[0];
+        finalAng = 3.14 - angle;
+    } else {
+        finalAng = angle;
+    }
+
+    float sine = sin(finalAng);
+
     float progress = (normalizedCoord[1] * sine + normalizedCoord[0] * (1.0 - sine)) * float(gradientLength - 1);
     int bottom = int(floor(progress));
     int top = bottom + 1;
-- 
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