From 5f02daec4e3344553a035418414025e603440322 Mon Sep 17 00:00:00 2001
From: wrexbe <81056464+wrexbe@users.noreply.github.com>
Date: Fri, 26 Nov 2021 03:32:22 -0800
Subject: [PATCH] Fix explosions with same source, and target pos (#5530)

* Fix explosions with same source, and target pos

* Using for Robust.Shared.Maths, Removed whitespace

* Don't throw in explosion if the offset is zero
---
 .../Explosion/Components/ExplosionLaunchedComponent.cs    | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Content.Server/Explosion/Components/ExplosionLaunchedComponent.cs b/Content.Server/Explosion/Components/ExplosionLaunchedComponent.cs
index 3164e8f856..d71ccba148 100644
--- a/Content.Server/Explosion/Components/ExplosionLaunchedComponent.cs
+++ b/Content.Server/Explosion/Components/ExplosionLaunchedComponent.cs
@@ -1,6 +1,7 @@
 using Content.Server.Throwing;
 using Content.Shared.Acts;
 using Robust.Shared.GameObjects;
+using Robust.Shared.Maths;
 
 namespace Content.Server.Explosion.Components
 {
@@ -19,7 +20,12 @@ namespace Content.Server.Explosion.Components
 
             if (sourceLocation.Equals(targetLocation)) return;
 
-            var direction = (targetLocation.ToMapPos(Owner.EntityManager) - sourceLocation.ToMapPos(Owner.EntityManager)).Normalized;
+            var offset = (targetLocation.ToMapPos(Owner.EntityManager) - sourceLocation.ToMapPos(Owner.EntityManager));
+
+            //Don't throw if the direction is center (0,0)
+            if (offset == Vector2.Zero) return;
+
+            var direction = offset.Normalized;
 
             var throwForce = eventArgs.Severity switch
             {