How do we connect external functions to main.lua?

Hi,

Right now we have all our code gathered in main.lua. We don't want to work with object oriented code, but still find an easy way of splitting the different objects up into separated files.

In our main.lua file we have objects like water, boat, boy, island and cloud - all together creating one massive bit of code. We want to have "BEGIN WATER 3" in it's own lua file and be able to execute that code in main.lua with a simple function instead. How do we do that?

Here an example from our main.lua file, displaying "water3":

--------------- BEGIN WATER 3 ---------------------------------------------------------
 
local watere = display.newImage( "water3.png", true )
game:insert( watere )
watere.y = 619
watere.x = 500
watere.xScale = 2
 
   --water sound
local wavesound5 = media.newEventSound("waves.wav")
 
local function playWave5 (event)
media.playEventSound(wavesound5)
end
 
local w,h = display.contentWidth, display.contentHeight
 
local function callbackFunc()
    print( "Transition 1 completed" )
                end
 
 local function mainwater(watere)
                end
 
function loopar()
        local myTween = transition.to(watere, {time=2300, x=(400), y=(h-140), transition=easing.inOutQuad, onComplete=loopar2})
                end
 
  function loopar2()
        local myTween = transition.to(watere, {time=2200, x=(w-500), y=(h-120), transition=easing.inOutQuad, onComplete=loopar})
                end
 
local listener2 = function()
    print( "Transition 2 completed" )
                end
 
local myTween = transition.to(watere, {time=2300, x=(w-400), y=(h-140), transition=easing.inOutQuad, onComplete=loopar})
 
 watere:addEventListener("touch", playWave5) 
 
---------------- END WATER 3 ---------------------------------------------------------

One piece of advice first: read the forum rules. You should use the "lua" tag whenever possible. Anyway:

In file "water3.lua":
 
local watere = display.newImage( "water3.png", true )
 game:insert( watere )
 watere.y = 619
 watere.x = 500
 watere.xScale = 2
 
 --water sound
 local wavesound5 = media.newEventSound("waves.wav")
 
local function playWave5 (event)
 media.playEventSound(wavesound5)
 end
 
local w,h = display.contentWidth, display.contentHeight
 
local function callbackFunc()
 print( "Transition 1 completed" )
 end
 
 local function mainwater(watere)
 end
 
function loopar()
 local myTween = transition.to(watere, {time=2300, x=(400), y=(h-140), transition=easing.inOutQuad, onComplete=loopar2})
 end
 
 function loopar2()
 local myTween = transition.to(watere, {time=2200, x=(w-500), y=(h-120), transition=easing.inOutQuad, onComplete=loopar})
 end
 
local listener2 = function()
 print( "Transition 2 completed" )
 end
 
local myTween = transition.to(watere, {time=2300, x=(w-400), y=(h-140), transition=easing.inOutQuad, onComplete=loopar})
 
 watere:addEventListener("touch", playWave5)

Thank you for answering!

Our main purpose is to organize the main.lua file. Right now we have objects like water, boat, boy, island and cloud gathered in main.lua. We want to cut each object out and organize them into separate lua files. Because of the structure in lua, some objects appear infront or behind of other objects (made by purpose). So, when cutting objects out into separate files, they need to keep their same position in the "layer hierarchy".

Then we need to access each object in main.lua, with (if possible) some simple function.

And if I wanted to access the functions and local variables?

Check out the following resources, they will help you;

http://blog.anscamobile.com/2011/09/tutorial-modular-classes-in-corona/
http://blog.anscamobile.com/2011/09/a-better-approach-to-external-modules/
http://blog.anscamobile.com/2011/07/using-external-modules-in-corona/

Peach :)

views:1554 update：2011/11/17 15:37:03


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