From e57b9f3f77b2505ca6a80c83e7d7bfe9f23e061a Mon Sep 17 00:00:00 2001
From: TehRealSalt <tehrealsalt@gmail.com>
Date: Tue, 2 Jan 2018 13:06:49 -0500
Subject: [PATCH] Minimum wall bump speed copied from K_KartBouncing

---
 src/p_map.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/src/p_map.c b/src/p_map.c
index 2d503a4f..c6eddadb 100644
--- a/src/p_map.c
+++ b/src/p_map.c
@@ -3948,6 +3948,28 @@ bounceback:
 		tmymove = FixedMul(mmomy, (FRACUNIT - (FRACUNIT>>2) - (FRACUNIT>>3)));
 	}
 
+	if (mo->player)
+	{
+		mobj_t *fx = P_SpawnMobj(mo->x, mo->y, mo->z, MT_BUMP);
+		if (mo->eflags & MFE_VERTICALFLIP)
+			fx->eflags |= MFE_VERTICALFLIP;
+		else
+			fx->eflags &= ~MFE_VERTICALFLIP;
+		fx->scale = mo->scale;
+
+		if (cv_collidesounds.value == 1)
+			S_StartSound(mo, cv_collidesoundnum.value);
+
+		if (P_AproxDistance(tmxmove, tmymove) < 25*FRACUNIT)
+		{
+			fixed_t momdiflength = P_AproxDistance(tmxmove, tmymove);
+			fixed_t normalisedx = FixedDiv(tmxmove, momdiflength);
+			fixed_t normalisedy = FixedDiv(tmymove, momdiflength);
+			tmxmove = FixedMul(25*FRACUNIT, normalisedx);
+			tmymove = FixedMul(25*FRACUNIT, normalisedy);
+		}
+	}
+
 	P_HitBounceLine(bestslideline); // clip the moves
 
 	mo->momx = tmxmove;