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Software News   Software News : Lua, powerful embeddable programming language
   posted by ssolie on 27-Jul-2005 16:17:03 (3283 reads)
You'll find a port of Lua 5.0.2 on OS4Depot which was painfully easy to do thanks to its portability. Give Lua a try and see if you like it. It seems to be pretty popular if you Google around a bit. I'm personally just starting to get into it so let me know if you find it useful.


Note: Dynamic loading will be coming soon...

The following was taken from the Lua web site at http://www.lua.org

Lua is a powerful light-weight programming language designed for extending applications. Lua is also frequently used as a general-purpose, stand-alone language. Lua is free software.

Lua combines simple procedural syntax with powerful data description constructs based on associative arrays and extensible semantics. Lua is dynamically typed, interpreted from bytecodes, and has automatic memory management with garbage collection, making it ideal for configuration, scripting, and rapid prototyping.

A fundamental concept in the design of Lua is to provide meta-mechanisms for implementing features, instead of providing a host of features directly in the language. For example, although Lua is not a pure object-oriented language, it does provide meta-mechanisms for implementing classes and inheritance. Lua's meta-mechanisms bring an economy of concepts and keep the language small, while allowing the semantics to be extended in unconventional ways. Extensible semantics is a distinguishing feature of Lua.

Lua is a language engine that you can embed into your application. This means that, besides syntax and semantics, Lua has an API that allows the application to exchange data with Lua programs and also to extend Lua with C functions. In this sense, Lua can be regarded as a language framework for building domain-specific languages.

Lua is implemented as a small library of C functions, written in ANSI C, and compiles unmodified in all known platforms. The implementation goals are simplicity, efficiency, portability, and low embedding cost. The result is a fast language engine with small footprint, making it ideal in embedded systems too.

Lua is designed and implemented by a team at Tecgraf, the Computer Graphics Technology Group of PUC-Rio (the Pontifical Catholic University of Rio de Janeiro in Brazil). Tecgraf is a laboratory of the Department of Computer Science.
    

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PosterThread
Mechanic 
Re: Lua, powerful embeddable programming language
Posted on 27-Jul-2005 19:23:27
#1 ]
Elite Member
Joined: 27-Jul-2003
Posts: 2007
From: Unknown



Toss in an ARexx port and we are on our way.

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MagicSN 
Re: Lua, powerful embeddable programming language
Posted on 27-Jul-2005 19:30:24
#2 ]
Hyperion
Joined: 10-Mar-2003
Posts: 626
From: Unknown

Hi!

Lua is really a good one... a lot of commercial games actually are lua-based. Most recent
example is probably "World of Warcraft" (though sadly despite the existance of a AmigaOS
lua-port this still won't mean WoW will be ported to AmigaOS :( ) though it is definitely not the only one. Probably this is the best OpenSource Scripting Library.

Steffen

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Mr_Capehill 
Re: Lua, powerful embeddable programming language
Posted on 27-Jul-2005 19:33:22
#3 ]
Super Member
Joined: 15-Mar-2003
Posts: 1923
From: Yharnam

Steffen: easily agreed. Lua is very popular and useful. Already some open source games (Angband variants, Stratagus, Fish Fillets NG...) use Lua - and thus offer anyone a chance to modify them!

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mwoof 
Re: Lua, powerful embeddable programming language
Posted on 28-Jul-2005 8:33:34
#4 ]
Super Member
Joined: 12-Jan-2004
Posts: 1174
From: Larisa, Greece

@MagicSN

World of Warcraft is written in Lua??????????????

Maybe we can try and make a similar game on Amiga!!


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And may the AmigaGuide you!

AmigaOne G3-SE, OS4 Final (July 2007 update), Debian Sarge, 512 MB RAM, 20 + 80 GB hard disks, NEC 3540 DVD writer, LG DVD reader, Radeon 9250, SB Live, Intracom Netfaster router, PCI USB card (NEC - OHCI/EHCI)

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Keyserling 
Re: Lua, powerful embeddable programming language
Posted on 28-Jul-2005 8:40:08
#5 ]
Member
Joined: 11-Mar-2003
Posts: 95
From: Paris, Europe

Is there a graphic library to open window, draw graphics etc. under OS4?

And how does it compare in speed with C?


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Mr_Capehill 
Re: Lua, powerful embeddable programming language
Posted on 28-Jul-2005 8:47:39
#6 ]
Super Member
Joined: 15-Mar-2003
Posts: 1923
From: Yharnam

@MWoof: no I don't think so. I think Steffen means that Lua is used for scripting, creating content to the game.

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Rogue 
Re: Lua, powerful embeddable programming language
Posted on 28-Jul-2005 10:48:17
#7 ]
OS4 Core Developer
Joined: 14-Jul-2003
Posts: 3999
From: Unknown

Quote:
World of Warcraft is written in Lua??????????????


Actually, it isn't. But LUA is used in lots of software (including commercial like WoW and Richard Burns Rally) for scripting.

(edited: typos)

Last edited by Rogue on 28-Jul-2005 at 11:03 AM.


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Mike67 
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Posted on 21-Aug-2007 11:09:38
#8 ]
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