Hi all,

I just wanted to give a quick update regarding the progress of the BGT engine, 
as things have been rather quiet over the last month. This new release includes 
a lot of bugfixes, plus a few new features that many of you have been asking 
for. This includes support for networking optimized for high speed action 
games, a complete sound source management system, the ability to compile 
scripts into standalone executables, etc. Here is the change log, as always:

Beta Version 0.5:
* Updated the script interpreter to the latest version which fixes some more 
bugs found by users.
* Added a powerful sound management include class that handles positioning of 
an arbitrary number of sound sources in a 1d or 2d environment.
* Updated the functions in sound_positioning.bgt to be more flexible, and added 
two new ones with extra parameters. This will require some minor modifications
to scripts that currently make use of position_sound_2d.
* Added support for high performance networking, optimized especially for fast 
paced action games.
* Added a method called run_extended to the dynamic menu include class which 
allows you to specify a starting position for the menu cursor, and to have
the initially selected item automatically announced after the intro finishes.
* Added a reset method to the dynamic menu include class that allows you to 
remove all previously added items, as well as optionally reset all the behavior
properties to their defaults.
* Added a boolean property called paused to the sound object which is set to 
true if a sound has been paused with an explicit call to the pause method.
* Added a function to convert numbers to their corresponding hexadecimal string 
* Added two functions (find_files and find_directories) that return a list of 
all the files and all the directories in a given path, respectively.
* Made the engine registerable, with automatic detection of the purchased 
version (lite or pro) based on the key given.
* Added the ability to compile scripts into standalone executables if a lite or 
pro license has been purchased.
* Added a credits section to the documentation.
* Added a function called get_call_stack_size to retrieve the number of 
functions currently on the stack.
* Allowed the use of multiline strings (e.g. string literals that contain a 
line feed) (thanks Nick).
* Restructured the script execution flow, which will allow the engine to invoke 
user defined callback functions in the future.
* changed the range of the rate property in the tts_voice object from -100 
(slowest) to 100 (fastest), so that it is now -10 (slowest) to 10 (fastest)
which prevents situations where no change is perceived even though the property 
is actually modified (thanks Jason).
* Fixed a slight inconvenience in the dynamic menu include class where the text 
to speech and the audio options were not cooperating with one another.
* Fixed a bug in the random number generator that would cause it to generate 
the same sequence of numbers every time (thanks Sorin).
* Changed the internal buffer size for streaming sounds in order to boost 
performance slightly.
* Fixed a bug that would sometimes cause static sounds to have an initial 
starting position greater than 0.
* Improved the error output when including script files that do not exist, so 
that the engine now displays all the locations in which it tried to find
the file rather than just the last one.
* Fixed a bug in the #include searching algorithm so that it now derives the 
current base directory for a relative include path based on the location of
the script that is trying to include it (thanks Damien).
* Fixed a few bugs that would cause crashes when calling certain functions 
during global variable initialization (thanks Damien).
* Made the exit function usable even during global variable initialization.
* Fixed a bug where the volume property in the tts_voice object would get 
incorrect values (thanks Jason).
* Fixed a bug where the key_down function could erroniously report that a key 
was down if the user left the window while the key was still down but released
* Fixed a few typos in the language tutorial.

I hope that some of you will find these new features useful. I'd be very happy 
to hear your thoughts and suggestions about things that you would like to see 
in this next release, as I still expect it to be a few days before it's 

Kind regards,

Philip Bennefall
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