From f8a08a41b1178656bcf7eb9fea6311072746800c Mon Sep 17 00:00:00 2001
From: Onek8 <mail@1k8.org>
Date: Wed, 9 Apr 2025 15:02:07 +0000
Subject: [PATCH] Update leenkx/Sources/iron/math/Quat.hx

---
 leenkx/Sources/iron/math/Quat.hx | 32 ++++++++++++++++++++++++--------
 1 file changed, 24 insertions(+), 8 deletions(-)

diff --git a/leenkx/Sources/iron/math/Quat.hx b/leenkx/Sources/iron/math/Quat.hx
index 6a8cce9..0d059e2 100644
--- a/leenkx/Sources/iron/math/Quat.hx
+++ b/leenkx/Sources/iron/math/Quat.hx
@@ -399,17 +399,33 @@ class Quat {
 		@return	This quaternion.
 	**/
 	public inline function fromEulerOrdered(e: Vec4, order: String): Quat {
-		var c1 = Math.cos(e.x / 2);
-		var c2 = Math.cos(e.y / 2);
-		var c3 = Math.cos(e.z / 2);
-		var s1 = Math.sin(e.x / 2);
-		var s2 = Math.sin(e.y / 2);
-		var s3 = Math.sin(e.z / 2);
-
+		
+		var mappedAngles = new Vec4();
+		switch (order) {
+			case "XYZ":
+				mappedAngles.set(e.x, e.y, e.z);
+			case "XZY":
+				mappedAngles.set(e.x, e.z, e.y);
+			case "YXZ": 
+				mappedAngles.set(e.y, e.x, e.z);
+			case "YZX": 
+				mappedAngles.set(e.y, e.z, e.x);
+			case "ZXY": 
+				mappedAngles.set(e.z, e.x, e.y);
+			case "ZYX": 
+				mappedAngles.set(e.z, e.y, e.x);
+		}
+		var c1 = Math.cos(mappedAngles.x / 2);
+		var c2 = Math.cos(mappedAngles.y / 2);
+		var c3 = Math.cos(mappedAngles.z / 2);
+		var s1 = Math.sin(mappedAngles.x / 2);
+		var s2 = Math.sin(mappedAngles.y / 2);
+		var s3 = Math.sin(mappedAngles.z / 2);
 		var qx = new Quat(s1, 0, 0, c1);
 		var qy = new Quat(0, s2, 0, c2);
 		var qz = new Quat(0, 0, s3, c3);
 
+		// Original multiplication sequence (implements reverse of 'order')
 		if (order.charAt(2) == 'X')
 			this.setFrom(qx);
 		else if (order.charAt(2) == 'Y')
@@ -429,7 +445,7 @@ class Quat {
 		else
 			this.mult(qz);
 
-		// TO DO quick fix doesnt make sense.
+		// TO DO quick fix somethings wrong..
 		this.x = -this.x;
 		this.y = -this.y;
 		this.z = -this.z;