Smoother ceiling clipping

- Apply some gravity immediately.
- Play the bump (like against walls) effect.

src/k_kart.c

@@ -2077,6 +2077,18 @@ void K_SpawnInvincibilitySpeedLines(mobj_t *mo)
 		fast->destscale = 6*((mo->player->invincibilitytimer/TICRATE)*FRACUNIT)/8;
 }
 
+void K_SpawnBumpEffect(mobj_t *mo)
+{
+	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;
+
+	S_StartSound(mo, sfx_s3k49);
+}
+
 static SINT8 K_GlanceAtPlayers(player_t *glancePlayer)
 {
 	const fixed_t maxdistance = FixedMul(1280 * mapobjectscale, K_GetKartGameSpeedScalar(gamespeed));

src/k_kart.h

@@ -51,6 +51,7 @@ void K_SpawnDriftBoostClip(player_t *player);
 void K_SpawnDriftBoostClipSpark(mobj_t *clip);
 void K_SpawnNormalSpeedLines(player_t *player);
 void K_SpawnInvincibilitySpeedLines(mobj_t *mo);
+void K_SpawnBumpEffect(mobj_t *mo);
 void K_KartMoveAnimation(player_t *player);
 void K_KartPlayerHUDUpdate(player_t *player);
 void K_KartPlayerThink(player_t *player, ticcmd_t *cmd);

src/p_map.c

@@ -3695,14 +3695,7 @@ void P_BouncePlayerMove(mobj_t *mo)
 	}
 	else
 	{
-		mobj_t *fx = P_SpawnMobj(mo->x, mo->y, mo->z, MT_BUMP);
+		K_SpawnBumpEffect(mo);
-		if (mo->eflags & MFE_VERTICALFLIP)
-			fx->eflags |= MFE_VERTICALFLIP;
-		else
-			fx->eflags &= ~MFE_VERTICALFLIP;
-		fx->scale = mo->scale;
-
-		S_StartSound(mo, sfx_s3k49);
 	}
 
 	P_PlayerHitBounceLine(bestslideline);

src/p_mobj.c

@@ -2775,6 +2775,15 @@ void P_PlayerZMovement(mobj_t *mo)
 				P_CheckMarioBlocks(mo);
 
 			mo->momz = 0;
+			P_CheckGravity(mo, true);
+
+			if (abs(mo->momz) < 15 * mapobjectscale)
+			{
+				mo->momz = 15 * mapobjectscale
+					* -(P_MobjFlip(mo));
+			}
+
+			K_SpawnBumpEffect(mo);
 		}
 	}
 }