Document errorMode. Make it an enum on the Lua side rather than a string.

TR5Main/Scripting/GameScriptSettings.cpp

@@ -1,6 +1,12 @@
 #include "framework.h"
 #include "GameScriptSettings.h"
 
+/***
+Settings that will be run on game startup.
+@classmod Settings
+@pragma nostrip
+*/
+
 void GameScriptSettings::Register(sol::state* lua)
 {
 	lua->new_usertype<GameScriptSettings>("Settings",
@@ -12,6 +18,24 @@ void GameScriptSettings::Register(sol::state* lua)
 		"drawingDistance", &GameScriptSettings::DrawingDistance,
 		"showRendererSteps", &GameScriptSettings::ShowRendererSteps,
 		"showDebugInfo", &GameScriptSettings::ShowDebugInfo,
+
+/*** How should the application respond to script errors?
+Must be one of the following:
+`ErrorMode.TERMINATE` - print to the log file and terminate the application when any script error is hit.
+This is the one you will want to go for if you want to know IMMEDIATELY if something has gone wrong.
+
+`ErrorMode.WARN` - print to the log file and continue running the application when a recoverable script error is hit.
+Choose this one if terminating the application is too much for you. Note that unrecoverable errors will still terminate
+the application.
+
+`ErrorMode.SILENT` - do nothing when a recoverable script error is hit.
+Think __very__ carefully before using this setting. These error modes are here to help you to keep your scripts
+working properly, but if you opt to ignore errors, you won't be alerted if you've misused a function or passed
+an invalid argument.
+
+As with `ErrorMode.WARN`, unrecoverable errors will still terminate the application.
+@mem errorMode
+*/
 		"errorMode", &GameScriptSettings::ErrorMode
 		);
 }