From 36c476b36e771210bfcb0977c2d2b3d55e114314 Mon Sep 17 00:00:00 2001
From: veins1 <19636663+veins1@users.noreply.github.com>
Date: Wed, 14 Dec 2022 19:44:48 +0500
Subject: [PATCH] Vector2Angle fix for non-normalized vectors

---
 src/raymath.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/raymath.h b/src/raymath.h
index 34db2d885..a853fdcc7 100644
--- a/src/raymath.h
+++ b/src/raymath.h
@@ -309,7 +309,9 @@ RMAPI float Vector2DistanceSqr(Vector2 v1, Vector2 v2)
 // Calculate angle from two vectors
 RMAPI float Vector2Angle(Vector2 v1, Vector2 v2)
 {
-    float result = -acos(v1.x*v2.x + v1.y*v2.y);
+    float v1Length = sqrtf((v1.x*v1.x) + (v1.y*v1.y));
+    float v2Length = sqrtf((v2.x*v2.x) + (v2.y*v2.y));
+    float result = -acos((v1.x*v2.x + v1.y*v2.y)/(v1Length*v2Length));
 
     return result;
 }