Dealt with bug 2746888. LUA now CDs to folder of LUA file on load. Added working Windows CD code, and test *NIX CD code. *NIX code still needs to be confirmed.

src/input.h

@@ -94,6 +94,7 @@ void FCEU_UpdateInput(void);
 void InitializeInput(void);
 void FCEU_UpdateBot(void);
 extern void (*PStrobe[2])(void);
+void FCEUD_SetInput(bool fourscore, bool microphone, ESI port0, ESI port1, ESIFC fcexp);
 
 //called from PPU on scanline events.
 extern void InputScanlineHook(uint8 *bg, uint8 *spr, uint32 linets, int final);

src/lua-engine.cpp

@@ -12,10 +12,16 @@
 
 #ifdef __linux
 #include <unistd.h>
+#define SetCurrentDir chdir
 #include <sys/types.h>
 #include <sys/wait.h>
 #endif
 
+#ifdef WIN32
+#include <direct.h>
+#define SetCurrentDir _chdir
+#endif
+
 #include "types.h"
 #include "fceu.h"
 #include "video.h"
@@ -4590,6 +4596,14 @@ int FCEU_LoadLuaCode(const char *filename, const char *arg) {
 		luaScriptName = strdup(filename);
 	}
 
+#if defined(WIN32) || defined(__linux)
+	std::string getfilepath = filename;
+
+	getfilepath = getfilepath.substr(0,getfilepath.find_last_of("/\\") + 1);
+
+	SetCurrentDir(getfilepath.c_str());
+#endif
+
 	//stop any lua we might already have had running
 	FCEU_LuaStop();