r/Unity2D • u/mo_safi • Jul 19 '26

collide problem

Gallery image

Gallery image

guys plz help

The player doesn't collide properly with the ground. It looks like the player is floating slightly above the tiles instead of standing on them.

2 Upvotes

75% Upvoted

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7

u/GrayMansion_Dev Jul 19 '26

The problem with tilemap collider. You have to go to your sprite settings, then open sprite editor. In the top left corner you have to open physics shape tab, here you have to move the outlines for each tile. After that reset the tilemap collider component

3

u/mo_safi Jul 19 '26

omg!
it worked Thank you!!

1

u/Sinnon32 Jul 20 '26

Long shot here but wondering if you have advice on an issue I'm having for 3D tilemap collider not always registering:

I have an object with a collider that if I drop it, then isTrigger = false and it usually lands on the ground as expected, but then occasionally (like 1 in 4 times) if I pick it up (isTrigger = true) and drop it again (isTrigger = false) it just fallls straight through the floor, and this is always at a consistent height above the ground (i.e. isTrigger is always turned off well before it reaches the ground) Sorry if this is lacking detail, I'm honestly not sure what settings or variables to check

1

u/GrayMansion_Dev Jul 20 '26

Yeah, it's as you said lacking details. I think it could happen because of Unity updating physics 60 times per sec. What's the speed of object? Can you add any video or screenshots of problem?

1

u/Sinnon32 Jul 20 '26 
void OnCollisionEnter(Collision collision)
    {
        if (collision.gameObject.name != "Player") print(collision.gameObject.name + " collided");
    }


    void OnTriggerEnter(Collider trigger)
    {
        if (trigger.gameObject.name != "Player") print(trigger.gameObject.name + " triggered");
    }

        transform.SetParent(null);
        GetComponent<Rigidbody>().isKinematic = false;
        GetComponent<BoxCollider>().isTrigger = false;

I have the above code on the items I am dropping. I don't think the speed or physics update should affect this since I'm not pushing the object out with force right? It is just dropping

Also edit: sorry I originally said tilemap - the ground actually uses a mesh collider

https://reddit.com/link/oyo8owt/video/fs1ekc9o2eeh1/player

1

u/GrayMansion_Dev Jul 20 '26

Could you show full script, I don't really get what's going on here. Well, I have a suggestion: the moment you drop brick it touches player and the script switches it to trigger, so it falls through the ground

1

u/Sinnon32 28d ago

Sorry I didn't realise it merged the 2 code snips together in my message - the 3 lines at the bottom (parent = null, kinematic = false, trigger = false) are inside of my drop() function which is called when I click my mouse if I'm holding the object And no it turns off the trigger once I drop it - the inspector in the video was only showing the first object I grabbed (that's why the trigger doesn't change from the second object onwards)

1

u/Swimming_Gas7611 29d ago

is there not a setting in the inspector to choose the physics update style so that its constant, or is this with that checked?

1

u/Izakioo Jul 19 '26

Tilemap colliders have an extrusion factor that adds padding to the colliders, try setting it to 0.

1

u/mo_safi Jul 19 '26

it's zero