Object Orientation - the Lua way

Lua module U107

Exercises, examples and other material relating to training module U107. This topic is presented on public courses Learning to program in Lua, Lua Programming

Lua Programming - training course - Learning to program in Lua and make good use of the language

Lua Programming - Learning to program in Lua and make good use of the language Our public "Lua Programming" course takes you from the basics of the language ...

http://www.wellho.net/course/ubfull.html [course]

Learning to program in Lua - training course - Learning to program in Lua and make good use of the language

Learning to program in Lua - Learning to program in Lua and make good use of the language "Learning to program in Lua" takes you from the basics of computer ...

http://www.wellho.net/course/ulfull.html [course]

Calling base class constructors

In all object oriented languages, you have a facility called inheritance where you can define one type of thing ("class of object") based on another, ...

http://www.wellho.net/mouth/1819_Cal ... ctors.html [short article]

If you are learning Lua, here are some more examples

During some courses, I write few (if any) new examples in front of my delegates, rather relying on the standard ones in the training notes (which I wrote ...

http://www.wellho.net/mouth/1699_If- ... mples.html [short article]

Towards Object Oriented Programming in Lua

I've spent a lot of the weekend working on our Lua course ... and for those of you new to this language I'll be sharing a few snippets with you here on ...

http://www.wellho.net/mouth/1692_Tow ... n-Lua.html [short article]

First class functions in Lua lead to powerful OO facilities

"In Lua, function names are first class variables." Ok - so what does that mean? At the most direct / simplest, it means that a function can be stored ...

http://www.wellho.net/mouth/1743_Fir ... ities.html [short article]

Simple use of a metatable to create a class

--[[ Simple use of a metatable to create a class ]] Box = {} local box_metatab = {} function Box.new(x,y,z) local info = {} info.x ...

http://www.wellho.net/resources/ex.php4?item=u107/meta2 [code sample]

This topic is presented on public courses Learning to program in Lua, Lua Programming

Examples from our training material

Cube.lua	Definition of a cube object
Dice.lua	Definition of a dice object - Inheritance
Sphere.lua	Definition of a sphere object
couples	Moving towards Lua objects - Metatables
cuboid	Illustrates use of a class of objects
dibdab	We can keep funtions in a table too
lottaob	Polymorphism in Lua - table of objects of different types
meta1	preparations for metatables - this is just a table
meta2	Simple use of a metatable to create a class
meta3	creating and using a table of tables("objects")
meta4	redefining operators
newCube.lua	Definition of a class in Lua
oblet	Hello Object World
obtable	Polymorphism in Lua - table of objects of different types

Background information

Some modules are available for download as a sample of our material or under an Open Training Notes License for free download from http://www.training-notes.co.uk.

Topics covered in this module

Mutable and Immutable Values.
MetaMethods and functions as members
Metatables, __index, __add and __lt
Polymorphism and inheritance

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