Corona + objects are not cleared between levels despite removeSelf + set to nil -
i have multilevel game , objects stay 'empty' in memory between levels mean if set physics hybrid, when come again in level, (or level) shows box without picture. (and physics act on these empty boxes) in destroyscene have made sure
myobj:removeself() myobj = nil and print message prove it.
also in menu in enterscene, in case
local prior_scene = storyboard.getprevious() storyboard.purgescene( prior_scene ) and tried
storyboard.removeall() and
storyboard.purgeonscenechange = true nothing works when go next level, or same level again, previous objects still here, don't it
ok, it's gonna bit long here entire level. go through destroyscene somehow display objects not removed.
-- scene5 ---------------------------------------------------------------------------------- local storyboard = require( "storyboard" ) local scene5 = storyboard.newscene() function scene5:createscene( event ) local group = self.view puppetjcolcount = 0 print ("createscene5", puppetjcolcount) ----------------------------------------------------------------------------- -- create display objects , add them 'group' here. -- example use-case: restore 'group' saved state. local physics = require("physics") physics.start() --physics.setscale(50) puppett_outside = false puppetj_outside = false end -- scene ------------------------- -- set , release catapult puppett function arm_puppett(event) if event.phase == "began" display.getcurrentstage():setfocus(puppett) arming_puppett = true elseif event.phase == "moved" puppett.x = event.x puppett.y = event.y elseif event.phase == "ended" puppett:applylinearimpulse(event.xstart - event.x, event.ystart - event.y, puppett.x, puppett.y) display.getcurrentstage():setfocus(nil) arming_puppett = false end end -- arm_puppett ---------------------------------------------------------------------------- function build_puppett() -- setup puppett puppett = display.newimage("assets/t-head-57-78.png") puppett.x = 80 puppett.y = 100 physics.addbody(puppett,"dynamic",{density=1.0, friction =0.3, bounce=0.2}) -- setup catapult event arming puppett puppett:addeventlistener("touch", arm_puppett) end -- build_puppett function build_puppetj_wall() puppetjcolcount = puppetjcolcount + 1 -- how many columns of puppetj puppetjij = {} -- define puppetj array ij = 0 ipuppetjtot = 0 --puppetjcolcount = 1 print ("build_puppetj_wall puppetjcolcount>" , puppetjcolcount); i=1, 4 j=1, puppetjcolcount ij = ij + 1 -- # of puppetjs on screen ipuppetjtot = ipuppetjtot + 1 puppetjij = display.newimagerect("assets/j-head-70-75.png",80,75) puppetjij.x = 600 + j*22 puppetjij.y = 100 + (puppetjij.height /2 * (i -1)) physics.addbody(puppetjij,"dynamic",{density=1.0,friction=0.3,bounce=0.2,issensor=false,radius = var}) end end print ("building puppetjs #:" ,ipuppetjtot) end -- build_puppetj_wall ------------------------------------------------------------- function every_frame( event ) end -- every_frame -------------------------------------------------------------------- --reset level function tap_reset_level(event) puppett:applylinearimpulse(0, 0, 0, 0) -- stop kick print "restarting physics?" puppett:setlinearvelocity( 0, 0 ) -- stop speed puppett.x = 80 puppett.y = 100 ij = 1,ipuppetjtot if (puppetjij) puppetjij:removeself() puppetjij = nil ------ end end puppett:removeself() puppett = nil build_puppetj_wall() build_puppett() puppett_outside = false puppetj_outside = false -- physics.addbody(puppett,"dynamic",{density=1.0, friction =0.3, bounce=0.2}) -- puppett:addeventlistener("touch", arm_puppett) --physics.start() end -- tap_reset_level ------------------------------------------------------------------------- function tap_main_menu(event) print ("going main menu") runtime:removeeventlistener("enterframe", every_frame) ij = 1,ipuppetjtot if (puppetjij) puppetjij:removeself() puppetjij = nil ------ end end if (puppett) puppett:removeself() puppett = nil end -- scene5:exitscene(scene5) storyboard.gotoscene( "menu" ) end -- tap_main_menu --------------------------------------------------------------------------------- -- ====================================================================================== -- called after scene has moved onscreen: function scene5:enterscene( event ) local group = self.view ----------------------------------------------------------------------------- -- insert code here (e.g. start timers, load audio, start listeners, etc.) -- group:insert( reset_btn ) -- load background print ("enterscene scene5 " , puppetjtot) background = display.newimage("assets/parliament-1200-800.png",0,0) --create reset level button reset_btn = display.newimagerect( "assets/btn_reset_128.png", 50,50) reset_btn.x = 50 reset_btn.y = 50 --create main menu button main_menu_btn = display.newimagerect( "assets/btn_home_128.png", 50,50) main_menu_btn.x = 100 main_menu_btn.y = 50 -- show level local mytext = display.newtext( "level 5", display.contentwidth - 60, 50, "helvetica", 24 ) mytext:settextcolor(255, 255, 255) -- insert(floor); floor = display.newrect(20,display.contentheight - 40,display.contentwidth - 40 ,10) physics.addbody(floor,"static",{density=1.0, friction =-0.3,bounce=-0.2,issensor=false}) -- build puppett build_puppett() print ("width=" , display.contentwidth , "height=",display.contentheight) -- setup puppetjs build_puppetj_wall() -- happens in everyframe function runtime:addeventlistener("enterframe", every_frame) --add reset event reset_btn:addeventlistener( "tap", tap_reset_level ) --add mainmenu event main_menu_btn:addeventlistener( "tap", tap_main_menu ) end -- scene:enterscene ---------------------------------------------------------------- -- ====================================================================================== -- called when scene move offscreen: function scene5:exitscene( event ) local group = self.view print "scene:exitscene5" ----------------------------------------------------------------------------- -- insert code here (e.g. stop timers, remove listeners, unload sounds, etc.) end -- exitscene -- called prior removal of scene's "view" (display group) function scene5:destroyscene( event ) local group = self.view runtime:removeeventlistener("enterframe", every_frame) puppetjcolcount = 0 if (reset_btn) print ("destroyscene5 - removing tap_reset_level") reset_btn:removeeventlistener( "tap", tap_reset_level ) reset_btn:removeself() end reset_btn = nil if (main_menu_btn) main_menu_btn:removeeventlistener( "tap", tap_main_menu ) main_menu_btn:removeself() end main_menu_btn = nil ij = 1,ipuppetjtot if (puppetjij) puppetjij:removeself() end puppetjij = nil ------ end if (puppett) puppett:removeself() end puppett = nil scene5 = nil end -- destroyscene ------------------------------------------------------------ scene5:addeventlistener( "createscene", scene5 ) scene5:addeventlistener( "enterscene", scene5 ) scene5:addeventlistener( "exitscene", scene5 ) scene5:addeventlistener( "destroyscene", scene5 ) --------------------------------------------------------------------------------- return scene5 update:
hi @devfar
ha, have restarted scratch corona template , figured out few things:
1) exitscene/destroyscene if local group used group display objects. removes display group ! not obvious there 1 declaration in it, no code such
2) reason why had of removeself of objects on place because nothing working. tried pretty under web.
3) , reason why didnt work because creating display objects function. , somehow display group not passed there. if move code createscene function indeed cleared when going next scene.
problem .. group puppetcreation code ! e.g.
function scene:createscene( event ) local group = self.view local physics = require("physics") physics.start() background = display.newimage("assets/bckg.png",0,0) group:insert(background) createpuppet1(group) createpuppet2(group) end function createpuppet1(group) puppet1= display.newimage("assets/puppet1.png",0,0) group:insert(puppet1) end function createpuppet2(group) puppet2= display.newimage("assets/puppet2.png",0,0) group:insert(puppet2) end i passed (group) because function createpuppet doesnt let me specify local group = self.view
my email address edualczatebed@gmail.com
thank help
there's lot of bug in code way implement not because when go scene , switch scene removing of object on destroyscene it's listener not efficient cannot point out what's causing problem because said there lot of bug in code. think didn't quite understand how use storyboard on corona. give idea on how solve problem implement code understand if not remove object on destroyscene can remove object via it's on display groups.
local rectangle local circle local function nextscene(event) storyboard.gotoscene( "scene_2", "fade", "500") end -- called when scene's view not exist: function scene:createscene( event ) local group = self.view ----------------------------------------------------------------------------- rectangle = display.newrect(100,100,100,100) rectangle:setfillcolor(255,0,0) rectangle.x = 100 rectangle.y = 100 circle = display.newcircle(100,100,50) circle.x = 250 circle.y = 100 circle:setfillcolor(0,255,0) --inserting of object display group if destroy scene display group remove group:insert(rectangle) group:insert(circle) ----------------------------------------------------------------------------- end -- called after scene has moved onscreen: function scene:enterscene( event ) local group = self.view ----------------------------------------------------------------------------- rectangle:addeventlistener("tap", nextscene) circle:addeventlistener("tap", nextscene) ----------------------------------------------------------------------------- end -- called when scene move offscreen: function scene:exitscene( event ) local group = self.view ----------------------------------------------------------------------------- ----------------------------------------------------------------------------- end -- called prior removal of scene's "view" (display group) function scene:destroyscene( event ) local group = self.view ----------------------------------------------------------------------------- ----------------------------------------------------------------------------- end as can see create 2 object rectangle , circle after created objects insert group on enterscene added tap listener go second scene if tap object. notice didn't bother remove object , listener on destroyscene when go scene_2 because when insert object display group whenever change scene remove object. after moving next scene can either purged last scene or remove when scene recreate object. hope can solve problem
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