Since we don't have a proper cheating system in pcsx2 yet, we're going back to the pnach system for game cheats.

This means you can put your cheats in "\cheats\*.pnach" and pcsx2 will read them from there.

Notes:
I have included some persona 4 cheats as an example in this commit...

Also note that currently the "Enable Patches" menu item also pertains to cheats (as well as database file patches).
I will add a separate "Enable Cheats" menu item in the future...

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@3030 96395faa-99c1-11dd-bbfe-3dabce05a288

bin/cheats/DE37E046.pnach

@@ -0,0 +1,15 @@
+comment=Persona 4 Cheats
+
+// Max Courage
+//patch=1,EE,007973F4,word,000000FF
+
+// Inf Money
+//patch=1,EE,2079B68C,word,05F5E0FF
+
+// Inf Health
+patch=1,EE,207973CC,word,000003E7
+patch=1,EE,007973CC,word,000003E7
+
+// Inf Spirit
+patch=1,EE,207973CE,word,000003E7
+patch=1,EE,007973CE,word,000003E7

pcsx2/DataBase_Loader.h

@@ -373,6 +373,8 @@ static wxString compatToStringWX(int compat) {
 	}
 }
 
+// Load Game Settings found in database
+// (game fixes, round modes, clamp modes, etc...)
 static void loadGameSettings(DataBase_Loader* gameDB) {
 	if (gameDB && gameDB->gameLoaded()) {
 		SSE_MXCSR  eeMX = EmuConfig.Cpu.sseMXCSR;

pcsx2/Patch.cpp

@@ -20,6 +20,7 @@
 #include "IopCommon.h"
 #include "Patch.h"
 #include "DataBase_Loader.h"
+#include <wx/textfile.h>
 
 IniPatch Patch[ MAX_PATCH ];
 
@@ -409,28 +410,26 @@ void inifile_command( const wxString& cmd )
     int code = PatchTableExecute( set, commands );
 }
 
-// This routine recieves a file from inifile_read, trims it,
+// This routine receives a string containing patches, trims it,
 // Then sends the command to be parsed.
-void inifile_process(string& s)
+void TrimPatches(string& s)
 {
 	String_Stream ss(s);
 	wxString buff;
-    while (!ss.finished())
-	{
+    while (!ss.finished()) {
 		buff = ss.getLineWX();
-		//Console.Error("%s", buff.ToAscii());
-        inifile_trim(buff);
-        if (!buff.IsEmpty()) inifile_command(buff);
-    }
+		inifile_trim(buff);
+		if (!buff.IsEmpty()) inifile_command(buff);
+	}
 }
 
-// This routine creates a pnach filename from the games crc,
-// loads it, trims the commands, and sends them to be parsed.
-void inifile_read(const wxString& name )
+// This routine loads patches from the game database
+// Returns number of patches loaded
+int InitPatches(const wxString& name)
 {
 	bool   patchFound = false;
 	string patch;
-	string crc = string(name.ToAscii());
+	string crc  = string(name.ToUTF8().data());
 	patchnumber = 0;
 	
 	if (GameDB && GameDB->gameLoaded()) {
@@ -446,9 +445,55 @@ void inifile_read(const wxString& name )
 
 	if (patchFound) {
 		Console.WriteLn(Color_Green, "Patch found!");
-		inifile_process(patch);
+		TrimPatches(patch);
 	}
 	else Console.WriteLn(Color_Gray, "No patch found. Resuming execution without a patch (this is NOT an error).");
+	
+	Console.WriteLn("Patches Loaded: %d", patchnumber);
+	return patchnumber;
+}
+
+// This routine receives a file from inifile_read, trims it,
+// Then sends the command to be parsed.
+void inifile_process(wxTextFile &f1 )
+{
+    for (uint i = 0; i < f1.GetLineCount(); i++)
+    {
+        inifile_trim(f1[i]);
+        if (!f1[i].IsEmpty()) inifile_command(f1[i]);
+    }
+}
+
+// This routine loads cheats from *.pnach files
+// Returns number of cheats loaded
+// Note: Should be called after InitPatches()
+int InitCheats(const wxString& name)
+{
+	wxTextFile f1;
+	wxString buffer;
+	int cheatsNumber = patchnumber;
+
+	// FIXME : We need to add a 'cheats' folder to the AppConfig, and use that instead. --air
+
+	buffer = Path::Combine(L"cheats", name + L".pnach");
+
+	if(!f1.Open(buffer) && wxFileName::IsCaseSensitive())
+	{
+		f1.Open( Path::Combine(L"cheats", name.Upper() + L".pnach") );
+	}
+
+	if(!f1.IsOpened())
+	{
+		Console.WriteLn( Color_Gray, "No cheats found. Resuming execution without cheats..." );
+		return 0;
+	}
+
+	Console.WriteLn( Color_Green, "Cheats found!");
+	inifile_process( f1 );
+
+	cheatsNumber = patchnumber - cheatsNumber;
+	Console.WriteLn("Cheats Loaded: %d", cheatsNumber);
+	return cheatsNumber;
 }
 
 void _ApplyPatch(IniPatch *p)
@@ -526,13 +571,6 @@ void ApplyPatch(int place)
 	}
 }
 
-int InitPatch(const wxString& crc)
-{
-    inifile_read(crc);
-    Console.WriteLn("patchnumber: %d", patchnumber);
-	return patchnumber;
-}
-
 void ResetPatch( void )
 {
 	patchnumber = 0;
@@ -611,9 +649,11 @@ namespace PatchFunc
 
     void gametitle( const wxString& text1, const wxString& text2 )
     {
-        Console.WriteLn( L"gametitle: " + text2 );
-        strgametitle = text2;
-        Console.SetTitle( strgametitle );
+		// Setting Game Title through patches is obsolete now
+		// Use database instead!
+		//Console.WriteLn( L"gametitle: " + text2 );
+		//strgametitle = text2;
+		//Console.SetTitle( strgametitle );
     }
 
     struct PatchPieces

pcsx2/Patch.h

@@ -55,12 +55,12 @@ namespace PatchFunc
     PATCHTABLEFUNC roundmode;
 }
 
-void inifile_read( const wxString& name );
-void inifile_command( const wxString& cmd );
-void inifile_trim( wxString& buffer );
+int  InitCheats(const wxString& name);
+void inifile_command(const wxString& cmd);
+void inifile_trim(wxString& buffer);
 
-int InitPatch(const wxString& crc);
-int AddPatch(int Mode, int Place, int Address, int Size, u64 data);
+int  InitPatches(const wxString& name);
+int  AddPatch(int Mode, int Place, int Address, int Size, u64 data);
 void ApplyPatch( int place = 1);
 void ResetPatch( void );
 

pcsx2/R5900.cpp

@@ -582,6 +582,7 @@ void __fastcall eeGameStarting()
 		wxString gameSerial = L" [" + DiscID  + L"]";
 		wxString gameCompat = L" [Status = Unknown]";
 		wxString gamePatch  = L"";
+		wxString gameCheats = L"";
 
 		if (GameDB && GameDB->gameLoaded()) {
 			int compat = GameDB->getInt("Compat");
@@ -591,15 +592,24 @@ void __fastcall eeGameStarting()
 		}
 		
 		if (EmuConfig.EnablePatches) {
-			int patches = InitPatch(gameCRC);
+			int patches = InitPatches(gameCRC);
 			if (patches) {
 				wxString pString( wxsFormat( L"%d", patches ) );
 				gamePatch = L" [Patches = " + pString + L"]";
 			}
 			loadGameSettings(GameDB);
 		}
-		
-		Console.SetTitle(gameName + gameSerial + gameCompat + gamePatch);
+
+		// ToDo: EmuConfig.EnableCheats option...
+		if (EmuConfig.EnablePatches) {
+			int cheats = InitCheats(gameCRC);
+			if (cheats) {
+				wxString cString( wxsFormat( L"%d", cheats ) );
+				gameCheats = L" [Cheats = " + cString + L"]";
+			}
+		}
+
+		Console.SetTitle(gameName + gameSerial + gameCompat + gamePatch + gameCheats);
 		
 		GetMTGS().SendGameCRC(ElfCRC);
 		g_GameStarted = true;