From a0fa2dda5711db197125b3fc006bcdab602ab60e Mon Sep 17 00:00:00 2001
From: TiviPlus <57223640+TiviPlus@users.noreply.github.com>
Date: Sat, 5 Apr 2025 16:51:13 +0200
Subject: [PATCH] Stub new undocumented 516 m4/m5 (#90404)

## About The Pull Request
Lummox added these and didnt document them so these are leftclicking rn

## Changelog
:cl:
fix: Mouse4 and Mouse5 no longer leftclick
/:cl:

Co-authored-by: TiviPlus <572233640+TiviPlus@users.noreply.com>
---
 code/__DEFINES/_click.dm | 2 ++
 code/_onclick/click.dm   | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/code/__DEFINES/_click.dm b/code/__DEFINES/_click.dm
index 07d044f8b89..08507a4dff9 100644
--- a/code/__DEFINES/_click.dm
+++ b/code/__DEFINES/_click.dm
@@ -5,6 +5,8 @@
 #define RIGHT_CLICK "right"
 #define MIDDLE_CLICK "middle"
 #define LEFT_CLICK "left"
+#define BUTTON4 "xbutton1"
+#define BUTTON5 "xbutton2"
 
 ///Mouse button that was just clicked/released
 ///if(modifiers[BUTTON] == LEFT_CLICK)
diff --git a/code/_onclick/click.dm b/code/_onclick/click.dm
index 0981c6f2518..1b015ea2efd 100644
--- a/code/_onclick/click.dm
+++ b/code/_onclick/click.dm
@@ -76,6 +76,9 @@
 	if(SEND_SIGNAL(src, COMSIG_MOB_CLICKON, A, modifiers) & COMSIG_MOB_CANCEL_CLICKON)
 		return
 
+	if(LAZYACCESS(modifiers, BUTTON4) || LAZYACCESS(modifiers, BUTTON5))
+		return
+
 	if(LAZYACCESS(modifiers, SHIFT_CLICK))
 		if(LAZYACCESS(modifiers, MIDDLE_CLICK))
 			ShiftMiddleClickOn(A)