TNT Virtual Pad for Gideros

AxlFlame · July 2014

Hey, guys!

So, in my current project, I started using the TNT Virtual Pad for Gideros (which is awesome, btw). The problem is, when I try to implement it on my existing project and use it, it gives me this error:

"attempt to index field 'data' (a nil value)"

I have both tntvpad32 and tntvpad64 in my project.

Can someone help me with this? I tried contacting the creator via his site, but with no success so far..

Here's the code from my minigame class: (the pad is only implemented on one of the project's minigames):

	-- setup Virtual Pad
	vPad = CTNTVirtualPad.new(stage, "images/Minigames/CEO/M1/Controle/tntskinpad",  PAD.STICK_SINGLE, PAD.BUTTONS_ONE, 20,2)
 
	vPad:setTextures(PAD.COMPO_BUTTON1, "buttona.png","buttonb.png")
	vPad:setJoyStyle(PAD.COMPO_LEFTPAD, PAD.STYLE_CLASSIC)
	vPad:setJoyAsAnalog(PAD.COMPO_LEFTPAD, false)
	vPad:setJoyAsAnalog(PAD.COMPO_RIGHTPAD, true)
	--vPad:setICade(false)
	vPad:start()
 
	function leftJoy(e)
		if e.data.power > 0.2 then
			player:move(e.data.angle, (e.data.power*150)*e.data.deltaTime)
		end
	end
 
	function rightJoy(e)
		if e.data.selected then
			player:setRotation(math.deg(e.data.angle*.786)+90)
		end
	end
 
	function fire(e)
		if e.data.state == PAD.STATE_BEGIN then
			local fire = CLASS_fire.new(player.xPos, player.yPos-20)
			stage:addChild(fire)
		end
	end
 
	function protection(event)
		if event.data.state == PAD.STATE_DOWN then
			player.protection:setVisible(true)
		else
			player.protection:setVisible(false)
		end
	end
 
	vPad:addEventListener(PAD.LEFTPAD_EVENT, leftJoy, self)
	vPad:addEventListener(PAD.BUTTON1_EVENT, protection, self)
	vPad:addEventListener(PAD.BUTTON2_EVENT, protection, self)

vitalitymobile · July 2014

Hi @AxlFlame, try this (do not include self param)

	vPad:addEventListener(PAD.LEFTPAD_EVENT, leftJoy)

ar2rsawseen · July 2014

@vitalitymobile is right, just to elaborate, when you do

vPad:addEventListener(PAD.LEFTPAD_EVENT, leftJoy)

it translates to

function leftJoy(e)
	if e.data.power > 0.2 then
		player:move(e.data.angle, (e.data.power*150)*e.data.deltaTime)
	end
end

But when you do

vPad:addEventListener(PAD.LEFTPAD_EVENT, leftJoy, self)

it translates to

function leftJoy(self, e)
	if e.data.power > 0.2 then
		player:move(e.data.angle, (e.data.power*150)*e.data.deltaTime)
	end
end

So basically you are naming self (which is passed as 1st argument) as e and try to access data property, which does not exist

AxlFlame · July 2014

Oh.. I get it now!

Thanks @vitalitymobile for the answer and @ar2rsawseen for the explanation!

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