Image and performWithDelay problem

Getting Started Newbie Questions
#1

Hello everyone, and congratulations for the forum. Excuse my take but i’m italian.

I’ve created image with function performWithDelay

“tmr = timer.performWithDelay(20,spawn0rb,total_orbs);” .

When the time reaches zero I would like to delete all the orbs created with the function on the exiteScene, but I do not know how to do. :frowning: Can help me? Thanks

#2

I was actually wondering this. Is there a quick way to just remove all objects from memory when you change seen?

#3

Yes, but not just from memory, the images created in the scene

#4

I’ve created 20 ball with this funtion

-> tmr = timer.performWithDelay(20,myballs,total_orbs);

and on the exitScene I would like to remove the exit all balls

#5

In your spawnOrb() function, you need to save a reference to the orb.  Most people do this by putting it into a table:

local orbs = {}

local function spawnOrb()

     orbs[#orbs+1] = display.newImage(…)

     orbs[#orbs].x = yourXlocation

     orbs[#orbs].y = yourYlocation

… etc.

end

Note the first time we use #orbs+1 to add a new orb at the end of the table.  When that’s done, #orbs references the last entry.  Now that you have a list of orbs you can remove them with something like this:

for i = #orbs, 1, -1 do

     orbs[i]:removeSelf()

     orbs[i] = nil

end

#6

I was actually wondering this. Is there a quick way to just remove all objects from memory when you change seen?

#7

Yes, but not just from memory, the images created in the scene

#8

I’ve created 20 ball with this funtion

-> tmr = timer.performWithDelay(20,myballs,total_orbs);

and on the exitScene I would like to remove the exit all balls

#9

In your spawnOrb() function, you need to save a reference to the orb.  Most people do this by putting it into a table:

local orbs = {}

local function spawnOrb()

     orbs[#orbs+1] = display.newImage(…)

     orbs[#orbs].x = yourXlocation

     orbs[#orbs].y = yourYlocation

… etc.

end

Note the first time we use #orbs+1 to add a new orb at the end of the table.  When that’s done, #orbs references the last entry.  Now that you have a list of orbs you can remove them with something like this:

for i = #orbs, 1, -1 do

     orbs[i]:removeSelf()

     orbs[i] = nil

end