Lua: Basic OO

Lua
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About Syntax Datatypes Hello World
Intermediate
Using Metatables Writing files Basic Object-orientation example Vararg statements MMF Interface
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This article assumes the use of Lua 5.1. Information may not be accurate or may need revision if you are using a different version.

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Though Lua has no true class support, it is still possible to emulate object-oriented programming through various methods, usually metatables. However, metatables are not required to produce a basic implementation of OO. This program will function with the regular Lua executable, but the effects will be much easier to see with another host program like SDL or MMF2.

objects = {
    newID = 0,
    o = { },
}