Added access test

UniversalModloader.py

@@ -11,7 +11,7 @@ def preloadExceptionHandler(exc_type, exc_value, tb):
 #Imports and variables
 umlVer = 0
 umlSubVer = 7
-umlFeatureSet = 2
+umlFeatureSet = 3
 umlBranch = "beta (dev)"
 umlVerStr = str(umlVer) + "." + str(umlSubVer) + "." +str(umlFeatureSet)+ " " + umlBranch
 
@@ -129,18 +129,35 @@ def loadMods(output = False, fast = False):
 			return False
 	
 	if fast == False:
+		if areModsLoaded():
+			if output: print("Mods are already loaded and could not be unloaded.")
+			return False
+		
 		print("Claiming app folder...")
 		claimFolder(appPath)
 		print("Claiming mod folder...")
 		claimFolder(modPath)
+		print("Testing access...")
+		try:
+			os.rename(appPath,appPath)
+		except Exception as e:
+			if output: print("Can't access folder! Is it in use?")
+			return
 		print("Cloning app folder...")
 		cloneFolder(appPath,tmpAppPath,False)
+		
 		print("Cloning mods...")
 		cloneMods(modPath)
 		
 		os.rename(appPath,originalAppPath)
 		os.rename(tmpAppPath,appPath)
 	else:
+		print("Testing access...")
+		try:
+			os.rename(appPath,appPath)
+		except Exception as e:
+			if output: print("Can't access folder! Is it in use?")
+			return
 		os.rename(appPath,tmpAppPath)
 		cloneMods(modPath)
 		os.rename(tmpAppPath,appPath)
@@ -155,6 +172,13 @@ def unloadMods(output = False):
 		if output: print("Mods are already unloaded.")
 		return True
 	
+	print("Testing access...")
+	try:
+		os.rename(appPath,appPath)
+	except Exception as e:
+		if output: print("Can't access folder! Is it in use?")
+		return
+	
 	print("Removing cloned app folder...")
 	shutil.rmtree(appPath)
 	os.rename(originalAppPath,appPath)