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[AlexL0604]

Hello everyone!! I'm newbie to game development and self-studying game development.
I'm now making a 2D Platformer.  And I've used TileMapEditor to create the map and used Tile2Unity to export the map including the collision of the floor and other platform.
However, the player would stuck on the floor (https://www.youtube.com/watch?v=7PgHGOjlnSs&feature=youtu.be)
I think it is related to the colliders but I've tried and cannot solve the problem.

the colliders are like this:
player is using box collider2D and the exported tile floor is using the polygon collider2D

[diegzumillo]

You're using the physics system I assume. Most games that use the physics system as main way of controlling a character use round colliders to get around this issue. If you want a precise platformer feel to it then you need to make your own collision system with traces and snap to walls and all that suff.

[bateleur]

Unity's physics systems do not guarantee to prevent overlap, since this is very difficult to do in the general case.

One hack which might help is to extend the floor colliders so that they overlap one another by about half the width of the character. This will prevent the corrective forces from collisions with the floor being applied parallel rather than perpendicular to the surface.

[AlexL0604]

Thank you for replying my question! I just thought there won't be anyone to answer my question hahaha so I had tried to solve it myself and it is finally solved!!
Just like the solution that was mentioned by bateleur, that is to extend the colliders of floors.
I think this situation happened coz of the gaps between each floor tiles' collider so it makes the player may stuck on it.
Anyway thank you for dudes who are trying to help me out!!