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Make DoConfig use the Config.dat in its directory

This is accurate to how the original DoConfig does it.

--- a/DoConfig/DoConfig.cpp

+++ b/DoConfig/DoConfig.cpp

@@ -4,7 +4,9 @@

  * To Public License, Version 2, as published by Sam Hocevar. See

  * http://sam.zoy.org/wtfpl/COPYING for more details. */

+#include <cstdio>

 #include <cstdlib>

+#include <cstring>

 #include <fstream>

 #include "FL/Fl.H"

 #include "FL/Fl_Window.H"

@@ -42,6 +44,8 @@

 		Fl_Group *label;

 };

+static char config_path[FILENAME_MAX];

+

 static data config = {MAGIC, FONT};

 static unsigned long CharsToLong(unsigned char *chars)

@@ -113,7 +117,7 @@

 void read_Config(){

 	std::fstream fd;

-	fd.open("Config.dat", std::ios::in | std::ios::binary);

+	fd.open(config_path, std::ios::in | std::ios::binary);

 	fd.read((char*)&config, sizeof(config));

 	fd.close();

 	if (CharsToLong(config.move) == 0){

@@ -157,12 +161,29 @@

 		LongToChars(button_lookup[joyRows[i]->value()]+1, config.buttons[i]);

 	}

 	std::fstream fd;

-	fd.open("Config.dat", std::ios::out | std::ios::binary);

+	fd.open(config_path, std::ios::out | std::ios::binary);

 	fd.write((char*)&config, sizeof(config));

 	fd.close();

 	exit(0);

 }

 int main(int argc, char* argv[]){

+	strcpy(config_path, argv[0]);

+

+	for (size_t i = strlen(config_path); ; --i)

+	{

+		if (i == 0)

+		{

+			strcpy(config_path, "Config.dat");

+			break;

+		}

+		else if (config_path[i] == '\\' || config_path[i] == '/')

+		{

+			config_path[i] = '\0';

+			strcat(config_path, "/Config.dat");

+			break;

+		}

+	}

+

 	Fl_Window *mainw = new Fl_Window(400, 380, "DoConfig - Doukutsu Monogatari Settings");

 	Fl_Group *movegroup = new Fl_Group(10, 10, 185, 50);

-- 

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