Search Issue Tracker

By Design

Votes

5

Found in

4.3.0b6

Issue ID

570326

Regression

No

OnCollisionExit2D doesn't work

Physics2D

-

To reproduce:
1. Open my attached project
2. Run the scene
3. Move the game object with arrow keys
4. Observe that there are no log messages when the object drops down from a platform

--------------------
Why is it by design?

When you adjust the position, rotation, scale or parent directly you are warping the object through space which the physics system doesn't support. When you do any of these operations then you will not get the resultant "end" calls and cause other side-effects.

If you output something in "OnCollisionEnter2D" you will see it is continually entering the collision because you are effectively repositioning the object in the enter callback. You should not do this.

You are adding a force rather than setting the position directly for this very reason.

Adjusting the parent in the collision callbacks is the problem and all transform related operations should be avoided when physics objects are involved.
Log in to vote on this issue

Comments (3)

  1. cbanklee12

    Aug 18, 2020 22:55

    https://giphy.com/channel/Naijmag

    https://influence.co/naijmag

    https://www.sbnation.com/users/Naijmag

    https://www.againstallenemies.com/users/naijmag

    https://www.allaboutthejersey.com/users/naijmag

    https://www.allforxi.com/users/naijmag

    https://www.acmepackingcompany.com/users/naijmag

    https://www.addictedtoquack.com/users/naijmag

    https://www.alligatorarmy.com/users/naijmag

    https://www.amazinavenue.com/users/naijmag

    https://www.americanninjawarriornation.com/users/naijmag

    https://www.anaheimcalling.com/users/naijmag

    https://www.anchorofgold.com/users/naijmag

    https://www.anddownthestretchtheycome.com/users/naijmag

    https://www.angelsonparade.com/users/naijmag

    https://www.anonymouseagle.com/users/naijmag

    https://www.arcticicehockey.com/users/naijmag

    https://www.arkansasfight.com/users/naijmag

    https://www.arrowheadpride.com/users/naijmag

    https://www.aseaofblue.com/users/naijmag

    https://www.athleticsnation.com/users/naijmag

    https://www.azdesertswarm.com/users/naijmag

    https://www.azsnakepit.com/users/naijmag

    https://www.backingthepack.com/users/naijmag

    https://www.badlefthook.com/users/naijmag

    https://www.baltimorebeatdown.com/users/naijmag

    https://www.bannersociety.com/users/naijmag

    https://www.bannersontheparkway.com/users/naijmag

    https://www.barcablaugranes.com/users/naijmag

    https://www.barkingcarnival.com/users/naijmag

    https://www.bigdsoccer.com/users/naijmag

    https://www.cagesideseats.com/users/naijmag

     https://www.californiagoldenblogs.com/users/naijmag

    https://www.camdenchat.com/users/naijmag

     https://www.canalstreetchronicles.com/users/naijmag

     https://www.canescountry.com/users/naijmag

     https://www.canishoopus.com/users/naijmag

    https://www.cardchronicle.com/users/naijmag

     https://www.cardiachill.com/users/naijmag

     https://www.casualhoya.com/users/naijmag

     https://www.catscratchreader.com/users/naijmag

     https://www.celticsblog.com/users/naijmag

     https://www.centerlinesoccer.com/users/naijmag

     https://www.chiesaditotti.com/users/naijmag

    https://www.cincyjungle.com/users/naijmag

     https://www.clipsnation.com/users/naijmag

     https://www.collegeandmagnolia.com/users/naijmag

     https://www.collegecrosse.com/users/naijmag
    https://www.conquestchronicles.com/users/naijmag

     https://www.coppernblue.com/users/naijmag

     https://www.cornnation.com/users/naijmag

     https://www.cougcenter.com/users/naijmag

     https://www.cowboysrideforfree.com/users/naijmag

     https://www.crawfishboxes.com/users/naijmag

     https://www.crimsonandcreammachine.com/users/naijmag

     https://www.crimsonquarry.com/users/naijmag

     https://www.curbed.com/users/naijmag

    https://www.dailynorseman.com/users/naijmag

    https://www.dawgsbynature.com/users/naijmag

     https://www.dawgsports.com/users/naijmag

     https://www.defendingbigd.com/users/naijmag

     https://www.denverstiffs.com/users/naijmag

     https://www.detroitbadboys.com/users/naijmag

     https://www.diebytheblade.com/users/naijmag

     https://www.dirtysouthsoccer.com/users/naijmag

     https://www.downthedrive.com/users/naijmag

     https://www.draysbay.com/users/naijmag

     https://www.dukebasketballreport.com/users/naijmag

     https://www.dynamotheory.com/users/naijmag

     https://www.eater.com/users/naijmag

     https://www.eightysixforever.com/users/naijmag

     https://www.epluribusloonum.com/users/naijmag

     https://www.everydayshouldbesaturday.com/users/naijmag

     https://www.faketeams.com/users/naijmag

     https://www.fearthefin.com/users/naijmag

     https://www.fearthesword.com/users/naijmag

     https://www.fearthewall.com/users/naijmag

     https://www.federalbaseball.com/users/naijmag

     https://www.fieldgulls.com/users/naijmag

     https://www.fishstripes.com/users/naijmag

     https://www.fiveforhowling.com/users/naijmag

     https://www.fmfstateofmind.com/users/naijmag

     https://www.footballstudyhall.com/users/naijmag

     https://www.forwhomthecowbelltolls.com/users/naijmag

     https://www.frogsowar.com/users/naijmag

     https://www.fromtherumbleseat.com/users/naijmag

     https://www.futnation.com/users/naijmag

     https://www.ganggreennation.com/users/naijmag

     https://www.garnetandblackattack.com/users/naijmag

     https://www.gaslampball.com/users/naijmag

    https://www.gobblercountry.com/users/naijmag

     https://www.goldenstateofmind.com/users/naijmag 

    https://www.goodbullhunting.com/users/naijmag

     https://www.grizzlybearblues.com/users/naijmag

    https://www.habseyesontheprize.com/users/naijmag

    https://www.halosheaven.com/users/naijmag

    https://www.hammerandrails.com/users/naijmag

     https://www.hockeywilderness.com/users/naijmag

     https://www.hogshaven.com/users/naijmag

     https://www.hothothoops.com/users/naijmag

     https://www.hottimeinoldtown.com/users/naijmag

     https://www.houseofsparky.com/users/naijmag

     https://www.hudsonriverblue.com/users/naijmag

     https://www.hustlebelt.com/users/naijmag

     https://www.indomitablecitysoccer.com/users/naijmag

    https://www.indycornrows.com/users/naijmag

     https://www.insidenu.com/users/naijmag

     https://www.intothecalderon.com/users/naijmag

     https://www.jacketscannon.com/users/naijmag

     https://www.japersrink.com/users/naijmag

     https://www.jerseydoesntshrink.com/users/naijmag

     https://www.jewelsfromthecrown.com/users/naijmag 

    https://www.knightsonice.com/users/naijmag

     https://www.lagconfidential.com/users/naijmag

     https://www.landgrantholyland.com/users/naijmag

     https://www.letsgotribe.com/users/naijmag

     https://www.libertyballers.com/users/naijmag

     https://www.lighthousehockey.com/users/naijmag

     https://www.litterboxcats.com/users/naijmag

     https://www.lonestarball.com/users/naijmag

     https://www.lookoutlanding.com/users/naijmag

     https://www.maizenbrew.com/users/naijmag

     https://www.managingmadrid.com/users/naijmag

     https://www.massivereport.com/users/naijmag

     https://www.mavsmoneyball.com/users/naijmag

     https://www.mccoveychronicles.com/users/naijmag

    https://www.midmajormadness.com/users/naijmag

    https://www.milehighhockey.com/users/naijmag

    https://www.milehighreport.com/users/naijmag

    https://www.minerrush.com/users/naijmag

     https://www.minorleagueball.com/users/naijmag

     https://www.mlbdailydish.com/users/naijmag

    https://www.mmafighting.com/users/naijmag

    https://www.mmamania.com/users/naijmag

     https://www.mountroyalsoccer.com/users/naijmag

     https://www.musiccitymiracles.com/users/naijmag

     https://www.mwcconnection.com/users/naijmag

    https://www.netsdaily.com/users/naijmag 

    https://www.nevermanagealone.com/users/naijmag

     https://www.ninersnation.com/users/naijmag

    https://www.nucksmisconduct.com/users/naijmag

     https://www.nunesmagician.com/users/naijmag

    https://www.obnug.com/users/naijmag

    https://www.offtackleempire.com/users/naijmag

    https://www.onceametro.com/users/naijmag

    https://www.onefootdown.com/users/naijmag

    https://www.onthebanks.com/users/naijmag

    https://www.ontheforecheck.com/users/naijmag

     https://www.orlandopinstripedpost.com/users/naijmag

     https://www.ourdailybears.com/users/naijmag

     https://www.outsports.com/users/naijmag

    https://www.overthemonster.com/users/naijmag

    https://www.pacifictakes.com/users/naijmag

     https://www.patspulpit.com/users/naijmag

    https://www.peachtreehoops.com/users/naijmag

     https://www.pensburgh.com/users/naijmag

    https://www.pensionplanpuppets.com/users/naijmag

    https://www.pinstripealley.com/users/naijmag

    https://www.podiumcafe.com/users/naijmag

    https://www.polygon.com/users/naijmag

     https://www.postingandtoasting.com/users/naijmag

    https://www.poundingtherock.com/users/naijmag

    https://www.prideofdetroit.com/users/naijmag

      
    https://www.progressiveboink.com/users/naijmag

     https://www.purplerow.com/users/naijmag

     https://www.ralphiereport.com/users/naijmag

    https://www.raptorshq.com/users/naijmag

     https://www.rawcharge.com/users/naijmag

    https://www.redcuprebellion.com/users/naijmag

    https://www.redreporter.com/users/naijmag

    https://www.revengeofthebirds.com/users/naijmag

    https://www.ridiculousupside.com/users/naijmag

    https://www.rockchalktalk.com/users/naijmag

     https://www.rockmnation.com/users/naijmag

     https://www.rockytoptalk.com/users/naijmag

    https://www.rollbamaroll.com/users/naijmag

     https://www.royalsreview.com/users/naijmag

    https://www.rslsoapbox.com/users/naijmag

     https://www.ruleoftree.com/users/naijmag

    https://www.rumbleinthegarden.com/users/naijmag

    https://www.sactownroyalty.com/users/naijmag

    https://www.sbnation.com/users/naijmag

    https://www.sbncollegehockey.com/users/naijmag

    https://www.secondcityhockey.com/users/naijmag

     https://www.serpentsofmadonnina.com/users/naijmag

     https://www.shakinthesouthland.com/users/naijmag

    https://www.silverandblackpride.com/users/naijmag

    https://www.silverscreenandroll.com/users/naijmag

    https://www.silversevensens.com/users/naijmag

     https://www.slcdunk.com/users/naijmag

    https://www.slipperstillfits.com/users/naijmag

    https://www.smokingmusket.com/users/naijmag

    https://www.sonicsrising.com/users/naijmag

    https://www.sounderatheart.com/users/naijmag

     https://www.southsidesox.com/users/naijmag

     https://www.stampedeblue.com/users/naijmag

     https://www.stanleycupofchowder.com/users/naijmag

     https://www.starsandstripesfc.com/users/naijmag

     https://www.stateoftheu.com/users/naijmag

    https://www.stlouisgametime.com/users/naijmag

     https://www.streakingthelawn.com/users/naijmag

     https://www.stridenation.com/users/naijmag

     https://www.stumptownfooty.com/users/naijmag

     https://www.swishappeal.com/users/naijmag

     https://www.talkingchop.com/users/naijmag

     https://www.tarheelblog.com/users/naijmag

     https://www.teamspeedkills.com/users/naijmag

     https://www.testudotimes.com/users/naijmag

     https://www.thebentmusket.com/users/naijmag

     https://www.thebirdwrites.com/users/naijmag

     https://www.thebluetestament.com/users/naijmag

    https://www.thechampaignroom.com/users/naijmag

    https://www.thedailygopher.com/users/naijmag

     https://www.thedailystampede.com/users/naijmag

     https://www.thedreamshake.com/users/naijmag

     https://www.thefalcoholic.com/users/naijmag

     https://www.thegoodphight.com/users/naijmag 

    https://www.theicegarden.com/users/naijmag 

    https://www.themaneland.com/users/naijmag

    https://www.theonlycolors.com/users/naijmag

    https://www.thephinsider.com/users/naijmag 

    https://www.thesirenssong.com/users/naijmag

    https://www.theuconnblog.com/users/naijmag

     https://www.theverge.com/users/naijmag

     https://www.threelionsroar.com/users/naijmag

     https://www.tomahawknation.com/users/naijmag

    https://www.truebluela.com/users/naijmag

     https://www.turfshowtimes.com/users/naijmag 

    https://www.twiceacosmo.com/users/naijmag

     https://www.twinkietown.com/users/naijmag

     https://www.ubbullrun.com/users/naijmag

    https://www.underdogdynasty.com/users/naijmag

     https://www.uwdawgpound.com/users/naijmag

     https://www.vanquishthefoe.com/users/naijmag

     https://www.villarrealusa.com/users/naijmag

     https://www.violanation.com/users/naijmag

    https://www.vivaelbirdos.com/users/naijmag

     https://www.vivathematadors.com/users/naijmag

     https://www.vox.com/users/naiimag

    https://www.voxmedia.com/users/naijmag

    https://www.vuhoops.com/users/naijmag

    https://www.wakingthered.com/users/naijmag

    https://www.welcometoloudcity.com/users/naijmag

     https://www.widerightnattylite.com/users/naijmag

    https://www.windycitygridiron.com/users/naijmag

    https://www.wingingitinmotown.com/users/naijmag 

    https://acmilan.theoffside.com/users/naijmag

  2. twoski

    Apr 03, 2014 15:14

    The same occurs for me. I have a rigid body with a collider and it only seems to call the exit function once and never again.

  3. WhyCantIUseMyLogin

    Dec 07, 2013 13:10

    I also echo this problem… I have Rigidbody2d that generate an OnCollisionEnter2D, but no OnCollisionExit2D event.

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.

Latest issues

See all new issues