Remove spawned object after transition

Solar2D General Questions/Discussion
#1

Hello,

Does anyone know how I remove a specific object, that spawns every 0.2 seconds after transition?

local function spawnRings()  
  
 local ringNr = math.random(1, 5)  
  
 ring = display.newImage("ring"..ringNr..".png", ball.x - ringVar, ball.y - ringVar)  
 worldGroup:insert(2, ring)  
 ring:setReferencePoint(display.CenterReferencePoint)  
 ring.xScale = ballSize/120  
 ring.yScale = ballSize/120  
 transition.to(ring, { time=800, xScale=ring.xScale\*2, yScale=ring.yScale\*2, alpha=0 })  
  
end  
local spawnRingsTimer = performAfterDelay(0.2, spawnRings, 0, true)

I’ve tried using this function:

local function destroyObj(obj)  
 obj:removeSelf()  
 obj = nil  
end

and call it once the transition is done, but it just makes the game freeze…
Thanks in advance, [import]uid: 14018 topic_id: 9674 reply_id: 309674[/import]

#2

in your transition.to it should be like this:

 transition.to(ring, { time=800, xScale=ring.xScale\*2, yScale=ring.yScale\*2, alpha=0, onComplete = function () ring:removeSelf(); ring = nil; end })

That defines the function directly in the transition line, so you don’t need to write a separate function to do this. Corona lets you define functions anywhere (in timers, transitions etc). [import]uid: 51654 topic_id: 9674 reply_id: 35232[/import]

#3

Thanks for the quick reply Naveen. I tried the code you provided but it also freezes my game… [import]uid: 14018 topic_id: 9674 reply_id: 35233[/import]

#4

Try making your “ring” local in the first line when you make it. Or are you referencing ring in other places too? [import]uid: 51654 topic_id: 9674 reply_id: 35240[/import]

#5

Great! Thanks a lot mate! I forgot to redeclare the ring local after mixing with different solutions!

Thanks works great now :slight_smile: [import]uid: 14018 topic_id: 9674 reply_id: 35242[/import]