Author Topic: Lua Q&A (Read 103851 times)

Adriweb · « **Reply #135 on:** September 24, 2012, 05:44:02 am »

And if you're looking to implement that into a string manager, here's an example :
https://github.com/adriweb/EEPro-for-Nspire/blob/master/Global%20Libraries/widgets.lua#L145

Bindle · « **Reply #136 on:** November 18, 2012, 09:50:44 am »

Hey guys, Im coding a game.

When I type xp = xp + 1 in the function SceneUpdate() my xp just turns away into a million xp points. I just want the increasment of one.

How do I do that?

Bindle

Adriweb · « **Reply #137 on:** November 18, 2012, 09:55:59 am »

You're probably calling SceneUpdate() too often, then.
If SceneUpdate() is used to update graphical parts, don't increment the xp in there, rather in another function you call whenever it's needed

Bindle · « **Reply #138 on:** November 18, 2012, 09:59:08 am »

So where do I do that? Is this the way to call a function?

function SceneUpdate()
   if wormhp == 0 then run("level")
   end
end

function level()
   xp = xp + 1
   return
end

Levak · « **Reply #139 on:** November 18, 2012, 06:11:02 pm »

Simply do

Code: [Select]

function SceneUpdate()
	if wormhp == 0 then
		level()
	end
end
	
function level()
	xp = xp + 1
end

mannuri · « **Reply #140 on:** February 24, 2013, 08:28:55 am »

Hi all,

I think some of you have heard about timasterbox, http://code.google.com/p/timasterbox/.
The autor seems to be busy so im leave my question here.
Im not a lua programer, but im triing to creat my school programs using that tool.
My problem is How i get the values imputed at numberBox. I want use the comand var.store() but i dont know what is the imput table name.

When i put an image into lua string i lost to mush quality. Can someone show a way to keep most of that quality.

Please LuaGod's help me

jwalker · « **Reply #141 on:** February 24, 2013, 09:02:04 am »

I don't know how his calls work, but with my lib and actually with any variable storage you can do var.store("varName", NumericUpDown_Name.num).

mannuri · « **Reply #142 on:** February 24, 2013, 10:23:32 am »

Thanks, i know how to use var.store() i dont know what is the NumericUpDown_Name.num name.

Code: [Select]

if widgetNoFocus == false then
            if self.widgets[self.widgetFocus].typeBox == "NumberBox" then
                -- Concatenamos el nuevo caracter.
                self.widgets[self.widgetFocus].text = self.widgets[self.widgetFocus].text .. char

i have many NumberBox, and the self.widgets[self.widgetFocus].text is the variable i think (learn from Nspire tutorial)

At start is some close to this:

Code: [Select]

    numberBoxj = NumberBox(70, "CENTER")
    numberBoxL = NumberBox(70, "CENTER")

    MASTERBOX:addWidget(numberBoxj)
    MASTERBOX:addWidget(numberBoxL)

and i want store the var from numberBoxj into "j".

jwalker · « **Reply #143 on:** February 24, 2013, 10:27:22 am »

that is your variable. The NumericUD is just a control from my lib. So for number box it may be var.store("variable", NumberBox_Name.text).

mannuri · « **Reply #144 on:** February 24, 2013, 11:12:11 am »

Thanks,

If i use:

Code: [Select]

var.store("qi",NumberBox[numberBoxQ].text)I got that error:

Code: [Select]

attempt to index field '?' (a nil value)
If i use:

Code: [Select]

var.store("qi",NumberBox_numberBoxQ.text)I got that error:

Code: [Select]

attempt to index global 'NumberBox_numberBoxQ' (a nil value)
:'(

mannuri · « **Reply #145 on:** February 24, 2013, 11:36:29 am »

Yeahh, thank you guys!

Im just putting the var.store at bad place

DJ Omnimaga · « **Reply #146 on:** February 24, 2013, 12:05:36 pm »

Heya and welcome here. I think I saw this software on Ticalc.org recently. It seemed pretty nice in general. There is also wzGUILib but I think that is for C programmers.

Good luck!

mannuri · « **Reply #147 on:** February 24, 2013, 12:50:55 pm »

People dont like to call programs like prog() and nspire dont have the dialog comand like voyage 200, i know a bit about ti basic but nothing about lua. So that tool is amazing because it solve the imput problem. Now i can prob to my friends Nspire is better than voyage 200.

jwalker · « **Reply #148 on:** February 24, 2013, 03:07:32 pm »

Quote from: DJ_O on February 24, 2013, 12:05:36 pm

Heya and welcome here. I think I saw this software on Ticalc.org recently. It seemed pretty nice in general. There is also wzGUILib but I think that is for C programmers.

Good luck!

Nope, its lua. Although I have thought about porting it to C to give it more power.

Jonius7 · « **Reply #149 on:** July 17, 2013, 05:20:56 am »

what does __varname mean?

example:

Code: [Select]

-- Class definition system
class = function(prototype)
    local derived = {}
    local derivedMT = {
        __index = prototype,
        __call  = function(proto, ...)
            local instance = {}
            local instanceMT = {
                __index = derived,
                __call = function()
                    return nil, "attempt to invoke an instance of a class"
                end,
            }
            setmetatable(instance, instanceMT)
            if instance.init then
                instance:init(...)
            end
            return instance
        end,
    }
    setmetatable(derived, derivedMT)
    return derived
end

Author Topic: Lua Q&A (Read 103851 times)

Adriweb

Re: Lua Q&A

Bindle

Re: Lua Q&A

Adriweb

Re: Lua Q&A

Bindle

Re: Lua Q&A

Levak

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mannuri

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jwalker

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mannuri

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jwalker

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mannuri

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mannuri

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DJ Omnimaga

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mannuri

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jwalker

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Jonius7

Re: Lua Q&A