touch for table objects

Solar2D Lua Language
#1

Hello, i’m learning Lua since 2 days and trying to write a game.

I’ve created the table of 7x7x6 objects and i’m trying to allow the user to touch each of them.

Firstly i succesfully writed code which allows me to touch and move two different objects:

local file1 = "green\_ball\_32.png" local file2 = "yellow\_ball\_32.png" local example = display.newImage( file1, 0, 0 ) local example2 = display.newImage( file2, 0, 40 ) local function choosenone( event ) ... -- choosing object and move it -- ... end example:addEventListener("touch", choosenone) example2:addEventListener("touch", choosenone)

 and it’s working, i can touch theese balls and move them through the screen

My problem is that i’m creating 3-dimensional table 7x7x6 with objects and i don’t know how to allow each one of them to be touched

local file1 = "green\_ball\_32.png" local file2 = "yellow\_ball\_32.png" local file3 = "red\_ball\_32.png" local file4 = "blue\_ball\_32.png" local file5 = "black\_ball\_32.png" local file6 = "pink\_ball\_32.png" showball = {} -- create the matrix for i=1,7 do showball[i] = {} -- create a new row for j=1,7 do showball[i][j] = {} -- create a new row showball[i][j][1] = display.newImage( file1, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][1].xScale = 0.8; showball[i][j][1].yScale = 0.8 showball[i][j][2] = display.newImage( file2, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][2].xScale = 0.8; showball[i][j][2].yScale = 0.8 showball[i][j][3] = display.newImage( file3, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][3].xScale = 0.8; showball[i][j][3].yScale = 0.8 showball[i][j][4] = display.newImage( file4, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][4].xScale = 0.8; showball[i][j][4].yScale = 0.8 showball[i][j][5] = display.newImage( file5, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][5].xScale = 0.8; showball[i][j][5].yScale = 0.8 showball[i][j][6] = display.newImage( file6, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][6].xScale = 0.8; showball[i][j][6].yScale = 0.8 showball[i][j][1].isVisible = true showball[i][j][2].isVisible = false showball[i][j][3].isVisible = false showball[i][j][4].isVisible = false showball[i][j][5].isVisible = false showball[i][j][6].isVisible = false end end

I’ve tried two ways, both don’t work and showing me errors

--showball[1][1][1]:addEventListener("touch", choosenone) --showball:addEventListener("touch", choosenone)

Can somebody help me and teach how i can solve my problem?

Best regards

Lucas

#2

it works for me

#3 
--showball[1][1][1]:addEventListener("touch", choosenone) --showball:addEventListener("touch", choosenone)

This not works for me, its shows error whenever im using the first line or the second one

6gyd.png

#4

The first line works for me.  Where are you calling it?

showball = {} -- create the matrix for i=1,7 do showball[i] = {} -- create a new row for j=1,7 do showball[i][j] = {} -- create a new row showball[i][j][1] = display.newImage( file1, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][1].xScale = 0.8; showball[i][j][1].yScale = 0.8 showball[i][j][2] = display.newImage( file2, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][2].xScale = 0.8; showball[i][j][2].yScale = 0.8 showball[i][j][3] = display.newImage( file3, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][3].xScale = 0.8; showball[i][j][3].yScale = 0.8 showball[i][j][4] = display.newImage( file4, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][4].xScale = 0.8; showball[i][j][4].yScale = 0.8 showball[i][j][5] = display.newImage( file5, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][5].xScale = 0.8; showball[i][j][5].yScale = 0.8 showball[i][j][6] = display.newImage( file6, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][6].xScale = 0.8; showball[i][j][6].yScale = 0.8 showball[i][j][1].isVisible = true showball[i][j][2].isVisible = false showball[i][j][3].isVisible = false showball[i][j][4].isVisible = false showball[i][j][5].isVisible = false showball[i][j][6].isVisible = false end end local function choosenone() print("click") end showball[1][1][1]:addEventListener("touch", choosenone)
#5

Ah right, i was calling it right after declaring the table so it was before declaring the choosenone function.

Also the all table is working now, i’ve written :

for i=1,7 do for j=1,7 do for k=1,6 do showball[i][j][k]:addEventListener("touch", choosenone) end end end

Thank you Mr. JonPM  :slight_smile:

#6

it works for me

#7 
--showball[1][1][1]:addEventListener("touch", choosenone) --showball:addEventListener("touch", choosenone)

This not works for me, its shows error whenever im using the first line or the second one

6gyd.png

#8

The first line works for me.  Where are you calling it?

showball = {} -- create the matrix for i=1,7 do showball[i] = {} -- create a new row for j=1,7 do showball[i][j] = {} -- create a new row showball[i][j][1] = display.newImage( file1, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][1].xScale = 0.8; showball[i][j][1].yScale = 0.8 showball[i][j][2] = display.newImage( file2, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][2].xScale = 0.8; showball[i][j][2].yScale = 0.8 showball[i][j][3] = display.newImage( file3, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][3].xScale = 0.8; showball[i][j][3].yScale = 0.8 showball[i][j][4] = display.newImage( file4, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][4].xScale = 0.8; showball[i][j][4].yScale = 0.8 showball[i][j][5] = display.newImage( file5, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][5].xScale = 0.8; showball[i][j][5].yScale = 0.8 showball[i][j][6] = display.newImage( file6, 13+(i-1)\*43, 30+j\*39.8 ) showball[i][j][6].xScale = 0.8; showball[i][j][6].yScale = 0.8 showball[i][j][1].isVisible = true showball[i][j][2].isVisible = false showball[i][j][3].isVisible = false showball[i][j][4].isVisible = false showball[i][j][5].isVisible = false showball[i][j][6].isVisible = false end end local function choosenone() print("click") end showball[1][1][1]:addEventListener("touch", choosenone)
#9

Ah right, i was calling it right after declaring the table so it was before declaring the choosenone function.

Also the all table is working now, i’ve written :

for i=1,7 do for j=1,7 do for k=1,6 do showball[i][j][k]:addEventListener("touch", choosenone) end end end

Thank you Mr. JonPM  :slight_smile: