From 6794af6695b0b4a7062ee077433ef97e5d83104f Mon Sep 17 00:00:00 2001
From: Nebuleon Fumika
Date: Tue, 12 Feb 2013 00:06:39 -0500
Subject: Reimplement grouped multipart cheat codes on top of Snes9x's cheat
 data.

---
 source/nds/cheatgrp.c | 100 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 source/nds/cheatgrp.c

(limited to 'source/nds/cheatgrp.c')

diff --git a/source/nds/cheatgrp.c b/source/nds/cheatgrp.c
new file mode 100644
index 0000000..75513e8
--- /dev/null
+++ b/source/nds/cheatgrp.c
@@ -0,0 +1,100 @@
+/* cheatgrp.c
+ *
+ * Copyright (C) 2013 GBAtemp user Nebuleon.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "cheatgrp.h"
+#include "string.h"
+#include "ds2_malloc.h"
+
+extern struct SCheatData Cheat;
+
+/*
+ * Obtains the names of cheat groups currently defined in the Snes9x cheat
+ * data.
+ * Cheats are grouped by name, because multipart codes share the same name
+ * when loaded.
+ * This function only handles consecutive codes with the same name. If two
+ * runs of codes have the same name, two identically-named groups will be
+ * written. Enabling or disabling either of these groups will also enable
+ * or disable the other if using NDSSFCEnableCheatGroup or
+ * NDSSFCDisableCheatGroup.
+ * OUT: NamePointers, an array of MAX_CHEATS_T + 1 pointers which are updated
+ *      by this function. All pointers beyond the last group name are updated
+ *      to point to NULL.
+ *      NameMemory, an array of MAX_CHEATS_T * MAX_SFCCHEAT_NAME char values
+ *      which is updated to hold the names of the groups.
+ */
+void NDSSFCGetCheatGroups (char** NamePointers, char* NameMemory)
+{
+	unsigned int NameIndex = 0, cheat;
+	char* dst = NameMemory;
+	for (cheat = 0; cheat < Cheat.num_cheats; cheat++)
+	{
+		if (cheat == 0 || strcmp(Cheat.c [cheat].name, Cheat.c [cheat - 1].name) != 0)
+		{
+			memcpy(dst, Cheat.c [cheat].name, MAX_SFCCHEAT_NAME * sizeof (char));
+			NamePointers[NameIndex] = dst;
+			dst += MAX_SFCCHEAT_NAME;
+			NameIndex++;
+		}
+	}
+	for (; NameIndex < MAX_CHEATS_T + 1; NameIndex++)
+	{
+		NamePointers[NameIndex] = NULL;
+	}
+}
+
+void NDSSFCEnableCheatGroup (char* GroupName)
+{
+	uint32 cheat;
+	for (cheat = 0; cheat < Cheat.num_cheats; cheat++)
+	{
+		if (strcmp(Cheat.c [cheat].name, GroupName) == 0)
+		{
+			S9xEnableCheat (cheat);
+		}
+	}
+}
+
+void NDSSFCDisableCheatGroup (char* GroupName)
+{
+	uint32 cheat;
+	for (cheat = 0; cheat < Cheat.num_cheats; cheat++)
+	{
+		if (strcmp(Cheat.c [cheat].name, GroupName) == 0)
+		{
+			S9xDisableCheat (cheat);
+		}
+	}
+}
+
+bool8 NDSSFCIsCheatGroupEnabled (char* GroupName)
+{
+	bool8 NameFound = FALSE;
+	uint32 cheat;
+	for (cheat = 0; cheat < Cheat.num_cheats; cheat++)
+	{
+		if (strcmp(Cheat.c [cheat].name, GroupName) == 0)
+		{
+			if (!Cheat.c [cheat].enabled)
+				return FALSE;
+			NameFound = TRUE;
+		}
+	}
+	return NameFound;
+}
-- 
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