Add directory_browser to config_create_default

partially resolves #42 [https://github.com/IntelOrca/OpenRCT2/issues/42]

projects/openrct2.sln

@@ -1,18 +1,28 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 2013
-VisualStudioVersion = 12.0.30110.0
+VisualStudioVersion = 12.0.21005.1
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "openrct2", "openrct2.vcxproj", "{D24D94F6-2A74-480C-B512-629C306CE92F}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Debug|Mixed Platforms = Debug|Mixed Platforms
 		Debug|Win32 = Debug|Win32
+		Release|Any CPU = Release|Any CPU
+		Release|Mixed Platforms = Release|Mixed Platforms
 		Release|Win32 = Release|Win32
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{D24D94F6-2A74-480C-B512-629C306CE92F}.Debug|Any CPU.ActiveCfg = Debug|Win32
+		{D24D94F6-2A74-480C-B512-629C306CE92F}.Debug|Mixed Platforms.ActiveCfg = Debug|Win32
+		{D24D94F6-2A74-480C-B512-629C306CE92F}.Debug|Mixed Platforms.Build.0 = Debug|Win32
 		{D24D94F6-2A74-480C-B512-629C306CE92F}.Debug|Win32.ActiveCfg = Debug|Win32
 		{D24D94F6-2A74-480C-B512-629C306CE92F}.Debug|Win32.Build.0 = Debug|Win32
+		{D24D94F6-2A74-480C-B512-629C306CE92F}.Release|Any CPU.ActiveCfg = Release|Win32
+		{D24D94F6-2A74-480C-B512-629C306CE92F}.Release|Mixed Platforms.ActiveCfg = Release|Win32
+		{D24D94F6-2A74-480C-B512-629C306CE92F}.Release|Mixed Platforms.Build.0 = Release|Win32
 		{D24D94F6-2A74-480C-B512-629C306CE92F}.Release|Win32.ActiveCfg = Release|Win32
 		{D24D94F6-2A74-480C-B512-629C306CE92F}.Release|Win32.Build.0 = Release|Win32
 	EndGlobalSection

src/config.c

@@ -25,6 +25,7 @@
 #include "addresses.h"
 #include "config.h"
 #include "rct2.h"
+#include <tchar.h>
 
 // Current keyboard shortcuts
 uint16 gShortcutKeys[SHORTCUT_COUNT];
@@ -220,8 +221,9 @@ static void config_create_default(char *path)
 	FILE* fp;
 
 	if (!config_find_rct2_path(gConfig.game_path)) {
-		MessageBox(NULL, "Unable to find RCT2 installation directory. Please correct in config.ini.", "OpenRCT2", MB_OK);
+		MessageBox(NULL, "Unable to find RCT2 installation directory. Please select the directoy where you installed RTC2!", "OpenRCT2", MB_OK);
-		strcpy(gConfig.game_path, "C:\\");
+		char *res = directory_browser();
+		strcpy(gConfig.game_path, res);
 	}
 
 	fp = fopen(path, "w");
@@ -232,6 +234,55 @@ static void config_create_default(char *path)
 	fclose(fp);
 }
 
+//A directory browser allowing for semi-automatic config.ini for non standard installs
+char* directory_browser()
+{
+	BROWSEINFO      bi;
+	char            pszBuffer[MAX_PATH];
+	LPITEMIDLIST    pidl;
+	LPMALLOC        lpMalloc;
+
+	// Initialize COM
+	if (CoInitializeEx(0, COINIT_APARTMENTTHREADED) != S_OK)
+	{
+		MessageBox(NULL, _T("Error opening browse window"), _T("ERROR"), MB_OK);
+		CoUninitialize();
+		return 0;
+	}
+
+	// Get a pointer to the shell memory allocator
+	if (SHGetMalloc(&lpMalloc) != S_OK)
+	{
+		MessageBox(NULL, _T("Error opening browse window"), _T("ERROR"), MB_OK);
+		CoUninitialize();
+		return 0;
+	}
+
+	bi.hwndOwner = NULL;
+	bi.pidlRoot = NULL;
+	bi.pszDisplayName = pszBuffer;
+	bi.lpszTitle = _T("Select your RCT2 installation directory");
+	bi.ulFlags = BIF_RETURNFSANCESTORS | BIF_RETURNONLYFSDIRS;
+	bi.lpfn = NULL;
+	bi.lParam = 0;
+
+	char *outPath = "C:\\";
+
+	if (pidl = SHBrowseForFolder(&bi))
+	{
+		// Copy the path directory to the buffer
+		if (SHGetPathFromIDList(pidl, pszBuffer))
+		{
+			// store pszBuffer (and the path) in the outPath
+			outPath = strcat("", pszBuffer);
+
+		}
+
+	}
+	CoUninitialize();
+	return outPath;
+}
+
 /**
  * Parse settings and set the game veriables
  * @param fp file pointer to the settings file

src/config.h

@@ -76,6 +76,7 @@ extern uint16 gShortcutKeys[SHORTCUT_COUNT];
 void config_reset_shortcut_keys();
 void config_load();
 void config_save();
+char* directory_browser();
 
 
 // New config format

src/rct2.c

@@ -151,7 +151,7 @@ void rct2_init_directories()
 	// check install directory
 	DWORD dwAttrib = GetFileAttributes(gConfig.game_path);
 	if (dwAttrib == INVALID_FILE_ATTRIBUTES || !(dwAttrib & FILE_ATTRIBUTE_DIRECTORY)) {
-		MessageBox(NULL, "Invalid RCT2 installation path. Please correct in config.ini.", "OpenRCT2", MB_OK);
+		MessageBox(NULL, "Invalid RCT2 installation path. Please delete config.ini and run OpenRTC2 again.", "OpenRCT2", MB_OK);
 		exit(-1);
 	}