From 103a37e7628ae3253c4949b5164d1e65792337d3 Mon Sep 17 00:00:00 2001
From: nytmyr <53322305+nytmyr@users.noreply.github.com>
Date: Wed, 28 Feb 2024 19:35:56 -0600
Subject: [PATCH] [Crash Fix] D20 crash if mitigation average resulted in 0
 (#4131)

---
 zone/attack.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/zone/attack.cpp b/zone/attack.cpp
index e90cc7edb..f45f193b9 100644
--- a/zone/attack.cpp
+++ b/zone/attack.cpp
@@ -1005,7 +1005,7 @@ double Mob::RollD20(int offense, int mitigation)
 	auto atk_roll = zone->random.Roll0(offense + 5);
 	auto def_roll = zone->random.Roll0(mitigation + 5);
 
-	int avg = (offense + mitigation + 10) / 2;
+	int avg = std::max(1, (offense + mitigation + 10) / 2);
 	int index = std::max(0, (atk_roll - def_roll) + (avg / 2));
 
 	index = EQ::Clamp((index * 20) / avg, 0, 19);