There are a lot of scripting languages available (even some written in delphi). Recently i rediscovered lua. It is easy writing scripts inside it and it allows to be extended with functions, variables and even classes from delphi.

Unfortunately the delphi port: http://assoc.wanadoo.fr/thallium-software/thlua.en.html does not seem to be maintained anymore. That way the dynamic unit is not up to date anymore. .

Anyway i released a first working example of using a class structure from delphi with lua here: http://www.noeska.com/dlua/downloads.aspx (the site is not finished yet)

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http://3das.noeska.com - create adventure games without programming