Prevent Rigidbody2D automatically push player and enemy when they're on same position.

Hello! I'm making a 2D platformer and both my player and enemies are using dynamic Rigidbody2D's.

So far this works fine: My player gets hit by the enemy --> player is slightly pushed back and hurt --> player get invincible for a few milliseconds, and while invincible, the player is able to walk through any enemy.

Now here is the problem: When my player is invincible it's walking through the enemies fine, but if I'm right on the position where the enemy is standing and my invincibility frames disappear, the enemy gets pushed away (the physics in the enemies RigidBody2D is pushing it away from the players RigidBody2D) and this is obviously a wrong behaviour.

Is there a way to fix this? For example if I can do a check right before the invincibility frames are gone, and see if the player is inside the enemy collision, then cause another push and apply damage and invincibility frames on the player? How can I manually check that collision between player and enemy in code without using the OnCollision2D? Note: I can't use the OnCollision2D since during my invincibility frames, the collision between player and enemy is being fully ignored!

Thank you!

 

Interesting problem.

It might be necessary to have an invisible proxy GameObject / Collider that:

- tries to track the player position, but...
- stays outside of all colliders all the time, but...
- also ignores colliding with the player (layer collision matrix)

This way it will remain outside and you can use it as the proxy place to restore the player to.

 

Thank you both for the suggestions!

Rigidbody2D.OverlapCollider fixed the issue for me! Just before ending the damage immunity, I check with Rigidbody2D.OverlapCollider if we're colliding with an enemy, and if we are, I apply another knockback to our player and this works really well.