Bug Tilemap Collider 2D At Runtime

The tilemap collider doesn't seem to work at runtime, only in the editor.

As a workaround I set a GameObject on the all 'solid' tiles with a BoxCollider2D on it, because this works I assume this is a bug.

The repro needs the following:

• A player GO, it should have a RigidBody2D (Dynamic, Z rotation off), BoxCollider2D and a script which changes the velocity of the RigidBody to move it.
• A TileMap with some 'Grid' collision tiles in it to block the player on the map

From here the do a test in editor and a test in build. The build doesn't seem to work.

Attached is a picture of my test where my player is able to go through the tile maps collision but not through the GameObject set for the tile:

 

By 'through the GameObject set for the tile' I mean with this option set labelled GameObject. It has a BoxCollider2D which the player can't go through.



Originally I just set the Collider Type to Grid and it seems to create a collider fine:



Which is used correctly in editor, it's the build where the player goes right through it:



Are you sure I should have to do that if I can see the Collider gizmo on the tilemap working fine?

 

Yes, this is preview #3 and yes it isn't working for me when built to the windows player (I haven't tested others).

 

Ah it looks like it does work.

After looking at it some more, I think it was due to the colliders not updating if I change the type while not having scenes with that tile loaded. Is that expected workflow or is there going to be some 'pre-build' logic to rebuild colliders on scenes that haven't been touched since changing tile information?

 

Apologies, the above is my post from my work account if that's confusing.

 

No I don't have a CompositeCollider2D.

Okay a full explanation:

I have a network lobby in one scene, this loads into the below scene when hosting or connected.

I have a TileMap with a TileMapCollider component in the other scene.

While editing 'tile' assets (In the project, in editor) I sometimes don't have the scene with the tile map in it loaded(That those tiles are in), this means that if I change a tiles collision type after already having placed it I have to load all scenes (in editor) that contain that tile map to allow that change to propagate.

Is that the expected workflow? If so, is there work going into making that a bit easier?

 

When you say 'load the scene' are you referring to loading at run time or loading it in editor or both?

I ask because I can make a change to a Tile in editor and then load a scene with that tile in it and the collision doesn't update for a good few minutes.

 

I still get very odd results for you saying loading a scene performs the update.

I have noticed the following things to be more reliable in re-building the collider to match changes made to a tile compared to loading the scene.

1. Ensuring the Palette window is open with a valid tile selected and putting the mouse into the scene window.
2. Disabling\Enabling the Tile Map Collider.

 

I can also confirm that when you use it in run time to set the tiles using command such as :

tilemap.SetTile(pos, tileBase);

It doesn't update the collision reliably. It does sometimes and sometimes not. I am not sure when it does and when it doesn't. This isn't problem with delay or anything, it just does not rebuild the part of tilemap surrounding the position where the tile has been set.

The only work around I found was to disable the TilemapCollider2D and enable it again to force it to rebuild entire colliders, not just around where it needs to, which is probably causing a lot of unnecessary overheads.

 

I hate to revive an old thread, but I've bumped into a similar problem with a stable Unity 2017.2.0f3. Here's the source-code to my project:

https://bitbucket.org/OmiyaGames/ludum-dare-40/src/dc38e66708f0c342b3ced5a10f5701f8cce115b4/?at=v0.1 (up to commit dc38e66 in "default" branch)

Just like the previous posts, I create a new set of tilemaps on runtime (start), and it seems to work fine in editor. The moment I build, however, collision with ALL tilemap collider2D (even those I made no changes to) disappears.

I do realize a few patches were released since, and I'll try testing them out soon. Will edit this post if anything changes.

Edit: does not work with 2017.2.0p4, either.
Edit 2: updated the URL above to tag where the bug was happening. I did create a work-around: re-create a box collider for every tile.

 

I'm am using unity 2019.2.0f1 and I am having a similar bug so...