From b51f206c1cb5fb3c0d5f9d93684cebc68502197a Mon Sep 17 00:00:00 2001
From: Sally Coolatta <tehrealsalt@gmail.com>
Date: Thu, 14 May 2020 18:45:54 -0400
Subject: [PATCH] Support antigrav

---
 src/p_mobj.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/p_mobj.c b/src/p_mobj.c
index a13112ae5..03875975f 100644
--- a/src/p_mobj.c
+++ b/src/p_mobj.c
@@ -1250,7 +1250,7 @@ fixed_t P_GetMobjGravity(mobj_t *mo)
 	// Less gravity underwater.
 	if ((mo->eflags & MFE_UNDERWATER) && !goopgravity)
 	{
-		if (mo->momz <= 0)
+		if (mo->momz * P_MobjFlip(mo) <= 0)
 		{
 			gravityadd = 4*gravityadd/3;
 		}