From 9e1058acf1dc22a0cfd0c760b867913d1e479076 Mon Sep 17 00:00:00 2001
From: Andrea Fontana <trikko@users.noreply.github.com>
Date: Thu, 9 Dec 2021 20:21:28 +0100
Subject: [PATCH] Unrolled everything.

---
 src/raymath.h | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/raymath.h b/src/raymath.h
index 7538670af..352c29e5c 100644
--- a/src/raymath.h
+++ b/src/raymath.h
@@ -99,7 +99,8 @@
 // Types and Structures Definition
 //----------------------------------------------------------------------------------
 #if !defined(RL_VECTOR2_TYPE)
-// Vector2 type
+// 
+type
 typedef struct Vector2 {
     float x;
     float y;
@@ -281,7 +282,9 @@ RMAPI float Vector2Distance(Vector2 v1, Vector2 v2)
 // Calculate angle from two vectors
 RMAPI float Vector2Angle(Vector2 v1, Vector2 v2)
 {
-    return atan2f(v2.y, v2.x) - atan2f(v1.y, v1.x);
+    float result = atan2f(v2.y, v2.x) - atan2f(v1.y, v1.x);
+    
+    return result;
 }
 
 // Scale vector (multiply by value)
@@ -531,7 +534,12 @@ RMAPI float Vector3Distance(Vector3 v1, Vector3 v2)
 // Calculate angle between two vectors
 RMAPI float Vector3Angle(Vector3 v1, Vector3 v2)
 {
-    return atan2f(Vector3Length(Vector3CrossProduct(v1, v2)), Vector3DotProduct(v1, v2));
+    Vector3 cross = { v1.y*v2.z - v1.z*v2.y, v1.z*v2.x - v1.x*v2.z, v1.x*v2.y - v1.y*v2.x };
+    float len = sqrtf(cross.x*cross.x + cross.y*cross.y + cross.z*cross.z);
+    float dot = (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z);
+    float result = atan2f(len, dot);
+    
+    return result;
 }
 
 // Negate provided vector (invert direction)