spawning objects not removing after leaving scene

mmk.verheijden · June 22, 2013, 1:55pm

Hi my objects are not removing after leaving the scene, i have tried to purging and removing the scene, but the objects will just keep on spawning in a other scene?

local badclout1 = {}&nbsp; local bad1Group = display.newGroup() local function spawnBC1() &nbsp; &nbsp;local badclouts1 = display.newImage("BCloud1.png") &nbsp; &nbsp;badclouts1.x = math.random(0, \_W) &nbsp; &nbsp;physics.addBody( badclouts1, "dynamic", { density=.1, bounce=.1, friction=.2, radius=45 } )&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp; &nbsp; &nbsp;badclouts1.name = "BCloud1"&nbsp; &nbsp; &nbsp;badclouts1.bodyType = "kinematic" &nbsp; &nbsp;badclouts1.isSensor = true &nbsp; &nbsp;badclouts1.y = math.random(-100, -50) &nbsp; &nbsp;badclouts1.index = #badclout1 + 1 &nbsp; &nbsp;bad1Group:insert(badclouts1) &nbsp; &nbsp;badclouts1.rotation = math.random(-10,10) -- Rotate the object &nbsp; &nbsp;badclouts1:setLinearVelocity(0, math.random(speeda1, speedb1)) -- Drop down &nbsp; &nbsp;badclout1[badclouts1.index] = badclouts1 &nbsp; &nbsp;tmrSpawn1 = timer.performWithDelay(math.random(spawna, spawnb), spawnBC1) return badclouts1&nbsp; end tmrSpawn1 = timer.performWithDelay(math.random(1000, 10000), spawnBC1) &nbsp;local function removeBomb() &nbsp; for i, v in pairs(badclout1) do &nbsp; &nbsp; if badclout1[i].y \>1000 then &nbsp; &nbsp; &nbsp; &nbsp; badclout1[i]:removeSelf() &nbsp; &nbsp; &nbsp; &nbsp; badclout1[i] = nil &nbsp; &nbsp; &nbsp;end &nbsp; end end Runtime:addEventListener("enterFrame", removeBomb) &nbsp;

is there something in my code that keeps it on the screen ?

russm305 · June 22, 2013, 5:29pm

If you are using Storyboard you must put all display objects in a group like so:

group:insert(badclouts1)

instead of:

bad1Group:insert(badclouts1)

mmk.verheijden · June 24, 2013, 6:34pm

Hi when i change it i get this error :

2013-06-24 19:30:49.824 Corona Simulator[307:707] Runtime error /Users/macuser/Desktop/spawn/game.lua:65: attempt to compare number with nil stack traceback: &nbsp;&nbsp;&nbsp;&nbsp;[C]: ? &nbsp;&nbsp;&nbsp;&nbsp;/Users/macuser/Desktop/spawn/game.lua:65: in function \</Users/macuser/Desktop/spawn/game.lua:63\> &nbsp;&nbsp;&nbsp;&nbsp;?: in function \<?:218\>

the code:

63 local function removeBomb() 64 for i, v in pairs(backgroundclouts) do 65 &nbsp; if backgroundclouts[i].y \>1000 then 66 &nbsp; &nbsp; &nbsp; backgroundclouts[i]:removeSelf() 67 &nbsp; &nbsp; &nbsp; backgroundclouts[i] = nil 68 &nbsp; &nbsp;end 69 end 70 end 80 Runtime:addEventListener("enterFrame", removeBomb) &nbsp;

rob · June 25, 2013, 2:17am

try:

if backgroundclouts[i].y and backgroundclouts[i].y >1000 then

It sounds like you’re checking for a backgroundclouts[] that doesn’t have a y member.

mmk.verheijden · June 25, 2013, 10:04pm

oky so that fixes the error now when i use group:insert(backclouts) (<- line 53) i get this error (on collision ):

Attempt to call method 'insert' (a nil value) stack traceback: &nbsp;&nbsp;&nbsp;&nbsp;[C]: in function 'insert' &nbsp;&nbsp;&nbsp;&nbsp;/Users/macuser/Desktop/spawn/game.lua:53: in function '\_listener' &nbsp;&nbsp;&nbsp;&nbsp;?: in function \<?:141\> &nbsp;&nbsp;&nbsp;&nbsp;?: in function \<?:218\> &nbsp;

rob · June 25, 2013, 11:21pm

I don’t see you using backclouts anywhere in your code above. Are you talking about backgroundclouts? If so, that’s a table and you have to insert the member into the group, not the whole table:

group:insert(backgroundclouts[i])

or something like that. Perhaps if you posted more of your code, we could do a bit more than speculate.

mmk.verheijden · June 26, 2013, 7:38pm

im using timer.cancel and rewritten the game’s storyboard it seams the behave now

russm305 · June 22, 2013, 5:29pm