How to detect each title individually?

helloworld2013d · January 12, 2016, 10:21pm

I have this function and it creates a simple board of rectangles.

But i want to be able to detect each of them.

So I can add a function to each of them

&nbsp;&nbsp;&nbsp; function whichOne(event) &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;if event.phase == "began" then &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;if titles.numberID == 10 then &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;print("This is box number 10") &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;end &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;end &nbsp;&nbsp; &nbsp;end &nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;local titles = {} &nbsp;&nbsp; &nbsp;function createBoard()&nbsp;&nbsp;&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp; &nbsp;for i = 1, 10 do&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;for j = 1, 6 do &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;local titles = display.newRect( sceneGroup, 0, 0, 40, 40 ) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;titles[i] = titles&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;titles.x = 60 \* i&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;titles.y = 60 \* j &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;titles.numberID = (i - 1) \* 6 + j &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;titles:addEventListener( "touch", whichOne) &nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;end&nbsp;&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp; &nbsp;end &nbsp;&nbsp; &nbsp;end &nbsp;&nbsp; &nbsp;createBoard()

the createBoard() function is great, works fine

but the whichOne(event) function I have the idea

but that is the one function I don’t know how to make it work.

I tried with event.target but I didn’t get it.

If I have 36 boxes I want to loop to all of them and print

each number on the terminal…

Thanks for your help

Victor

JonPM · January 12, 2016, 10:58pm

Since you have a nested for loop, you are overwriting the previous [i] entries. Try this:

function whichOne(event) if event.phase == "began" then print(event.target.numberID) end end local titles = {} local idx = 1 function createBoard() for i = 1, 10 do for j = 1, 6 do titles[idx] = display.newRect( sceneGroup, 0, 0, 40, 40 ) titles[idx].x = 60 \* i titles[idx].y = 60 \* j titles[idx].numberID = idx titles[idx]:addEventListener( "touch", whichOne) idx = idx + 1 end end end createBoard()

Also notice you don’t need another titles object within the for loop. Just add them directly to the initial table you created.

helloworld2013d · January 14, 2016, 1:45am

This one works really nice, Thank you very much!!!

One more thing that I learn.

Happy New Year 2016!!!

Victor

JonPM · January 12, 2016, 10:58pm

Since you have a nested for loop, you are overwriting the previous [i] entries. Try this:

function whichOne(event) if event.phase == "began" then print(event.target.numberID) end end local titles = {} local idx = 1 function createBoard() for i = 1, 10 do for j = 1, 6 do titles[idx] = display.newRect( sceneGroup, 0, 0, 40, 40 ) titles[idx].x = 60 \* i titles[idx].y = 60 \* j titles[idx].numberID = idx titles[idx]:addEventListener( "touch", whichOne) idx = idx + 1 end end end createBoard()

Also notice you don’t need another titles object within the for loop. Just add them directly to the initial table you created.

helloworld2013d · January 14, 2016, 1:45am

This one works really nice, Thank you very much!!!

One more thing that I learn.

Happy New Year 2016!!!

Victor