From 39fe3bd1a749b92a2e959e73cb9342e37a9195b2 Mon Sep 17 00:00:00 2001
From: IntegratedQuantum <jahe788@gmail.com>
Date: Tue, 11 Mar 2025 21:59:05 +0100
Subject: [PATCH] Replace tail call recursion in gui.zig with a standard while
 loop.

This brings us one tiny step closer to overlapping with the set of supported features of the x86 backend.
---
 src/gui/gui.zig | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/src/gui/gui.zig b/src/gui/gui.zig
index ece8fb1f..23ebf0b8 100644
--- a/src/gui/gui.zig
+++ b/src/gui/gui.zig
@@ -505,16 +505,18 @@ pub fn secondaryButtonReleased() void {
 }
 
 pub fn updateWindowPositions() void {
-	var wasChanged: bool = false;
-	for(windowList.items) |window| {
-		const oldPos = window.pos;
-		window.updateWindowPosition();
-		const newPos = window.pos;
-		if(vec.lengthSquare(oldPos - newPos) >= 1e-3) {
-			wasChanged = true;
+	var wasChanged: bool = true;
+	while(wasChanged) {
+		wasChanged = false;
+		for(windowList.items) |window| {
+			const oldPos = window.pos;
+			window.updateWindowPosition();
+			const newPos = window.pos;
+			if(vec.lengthSquare(oldPos - newPos) >= 1e-3) {
+				wasChanged = true;
+			}
 		}
 	}
-	if(wasChanged) @call(.always_tail, updateWindowPositions, .{}); // Very efficient O(n²) algorithm :P
 }
 
 pub fn updateAndRenderGui() void {