for loop images

Getting Started Newbie Questions
#1

I want to show some images on the simulator 

when I tap the first time nothing happen, in the second tap appears the first pad,

but in the third tap appears two pads ,but in the pad number one appears another pad,

so I have two pads in the first position an one in the second position. In the third tap appears 

three pads in the first position, two pads in the second position an one pad in the third position.

I don’t want  pads in the same positions.

local pads = {}

local idx = 0

cantidad=0

local function tapDisplayImages()

          

for y = 1, 1 do

    for x = 1, cantidad do

        idx = idx + 1

        local pad = display.newImageRect(“images/lilypad_green.png”, 64, 64)      

        pad.x = (x * 75) - 23

        pad.y = y * 70

        local sizer = 1 + math.random(-1, 1) / 10

        pad:scale ( sizer, sizer )

        pads[idx] = pad

        pads[idx].idx = idx

    end

end

    

cantidad=cantidad+1

print(“tapped”)

end

button = display.newImage(“images/button.png”, 100, 195)

button.x = 152

button.y = 170

button:addEventListener ( “tap”, tapDisplayImages )

#2

On each tap in listener, each time you loop from x = 1 to cantidad.
So position x of pads will always start from the same point. For simplicity lets write down each x position for next taps
1*75-23
1*75-23, 2*75-23
1*75-23, 2*75-23, 3*75-23

And so on. And y will be always 70.

#3

On each tap in listener, each time you loop from x = 1 to cantidad.
So position x of pads will always start from the same point. For simplicity lets write down each x position for next taps
1*75-23
1*75-23, 2*75-23
1*75-23, 2*75-23, 3*75-23

And so on. And y will be always 70.