From 73a4acad9581cef3adf1bab614c91d2cdafff1d1 Mon Sep 17 00:00:00 2001
From: Gandalf <jzo123@hotmail.com>
Date: Fri, 26 Nov 2021 20:06:21 +0000
Subject: [PATCH] PORT: Makes diagonal movement euclidean (#63058)

---
 code/__DEFINES/maths.dm          | 2 ++
 code/modules/mob/mob_movement.dm | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/code/__DEFINES/maths.dm b/code/__DEFINES/maths.dm
index fa8994ff6b9..81349a59bf5 100644
--- a/code/__DEFINES/maths.dm
+++ b/code/__DEFINES/maths.dm
@@ -4,6 +4,8 @@
 
 #define NUM_E 2.71828183
 
+#define SQRT_2 1.414214 //CLOSE ENOUGH!
+
 #define PI 3.1416
 #define INFINITY 1e31 //closer then enough
 
diff --git a/code/modules/mob/mob_movement.dm b/code/modules/mob/mob_movement.dm
index 6d6653c42c5..f8a83282218 100644
--- a/code/modules/mob/mob_movement.dm
+++ b/code/modules/mob/mob_movement.dm
@@ -122,7 +122,7 @@
 
 	//We are now going to move
 	var/add_delay = mob.cached_multiplicative_slowdown
-	mob.set_glide_size(DELAY_TO_GLIDE_SIZE(add_delay * ( (NSCOMPONENT(direct) && EWCOMPONENT(direct)) ? 2 : 1 ) )) // set it now in case of pulled objects
+	mob.set_glide_size(DELAY_TO_GLIDE_SIZE(add_delay * ( (NSCOMPONENT(direct) && EWCOMPONENT(direct)) ? SQRT_2 : 1 ) )) // set it now in case of pulled objects
 	if(old_move_delay + (add_delay*MOVEMENT_DELAY_BUFFER_DELTA) + MOVEMENT_DELAY_BUFFER > world.time)
 		move_delay = old_move_delay
 	else
@@ -144,7 +144,7 @@
 	. = ..()
 
 	if((direct & (direct - 1)) && mob.loc == new_loc) //moved diagonally successfully
-		add_delay *= 2
+		add_delay *= SQRT_2
 	mob.set_glide_size(DELAY_TO_GLIDE_SIZE(add_delay))
 	move_delay += add_delay
 	if(.) // If mob is null here, we deserve the runtime