From f662ef9454b72e697171f867d5b632d457c2a962 Mon Sep 17 00:00:00 2001
From: toaster <rollerorbital@gmail.com>
Date: Sat, 30 Nov 2019 20:02:51 +0000
Subject: [PATCH] Fix emerald coordinate overflow in failed SS tally (resolves
 #421).

---
 src/y_inter.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/y_inter.c b/src/y_inter.c
index 32548d263..340e8be4c 100644
--- a/src/y_inter.c
+++ b/src/y_inter.c
@@ -603,8 +603,7 @@ void Y_IntermissionDrawer(void)
 					{
 						if (emeraldbounces < 3)
 						{
-							emeraldmomy += 1;
-							emeraldy += emeraldmomy;
+							emeraldy += (++emeraldmomy);
 							if (emeraldy > 74)
 							{
 								S_StartSound(NULL, sfx_tink); // tink
@@ -616,9 +615,11 @@ void Y_IntermissionDrawer(void)
 					}
 					else
 					{
-						emeraldmomy += 1;
-						emeraldy += emeraldmomy;
-						emeraldx += intertic - 6;
+						if (emeraldy < (vid.height/vid.dupy)+16)
+						{
+							emeraldy += (++emeraldmomy);
+							emeraldx += intertic - 6;
+						}
 						if (emeraldbounces < 1 && emeraldy > 74)
 						{
 							S_StartSound(NULL, sfx_shldls); // nope