From 77e3f9acb3df665d0036f5c1bb3fa25c832bc9b6 Mon Sep 17 00:00:00 2001
From: nattthebear <goyuken@gmail.com>
Date: Sat, 13 Jun 2020 16:53:46 -0400
Subject: [PATCH] saturn - hide unavailable ports depending on multitap

One slight issue is that the bulitin smpc reset is always "player 13", but that's not enough of an issue for me to care
---
 .../Consoles/Sega/Saturn/Saturnus.cs             | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/BizHawk.Emulation.Cores/Consoles/Sega/Saturn/Saturnus.cs b/src/BizHawk.Emulation.Cores/Consoles/Sega/Saturn/Saturnus.cs
index 906dbf3074..e68c4cafea 100644
--- a/src/BizHawk.Emulation.Cores/Consoles/Sega/Saturn/Saturnus.cs
+++ b/src/BizHawk.Emulation.Cores/Consoles/Sega/Saturn/Saturnus.cs
@@ -57,5 +57,21 @@ namespace BizHawk.Emulation.Cores.Consoles.Sega.Saturn
 		protected override ISet<string> NonSyncSettingNames { get; } = new HashSet<string>
 		{
 		};
+
+		protected override HashSet<string> ComputeHiddenPorts()
+		{
+			var devCount = 12;
+			if (SettingsQuery("ss.input.sport1.multitap") != "1")
+				devCount -= 5;
+			if (SettingsQuery("ss.input.sport2.multitap") != "1")
+				devCount -= 5;
+			var ret = new HashSet<string>();
+			for (var i = 1; i <= 12; i++)
+			{
+				if (i > devCount)
+					ret.Add($"port{i}");
+			}
+			return ret;
+		}
 	}
 }