2D collision trouble

[DaWheeeGod]

Hello everyone! I’m having a lot of trouble with making walls that you can’t go through for the past few hours. I tried using code but that didn’t work, so now I’m just letting the physics engine do it for me by adding a box collider and having a rigid body and a collider on the player. However, now, when the player goes up to the wall, it does prevent the player from going through it, but it vibrates.
Thank you,

[Kurt-Dekker]

Do not TALK about code without posting it. Do NOT retype code. Copy/paste and post code properly. ONLY post the relevant code, and then refer to it in your discussion. Do NOT post photographs of code.

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The most-likely problem:

With Physics (or Physics2D), never manipulate the Transform directly. If you manipulate the Transform directly, you are bypassing the physics system and you can reasonably expect glitching and missed collisions and other physics mayhem.

This means you may not change transform.position, transform.rotation, you may not call transform.Translate(), transform.Rotate() or other such methods, and also transform.localScale is off limits. You also cannot set rigidbody.position or rigidbody.rotation directly. These ALL bypass physics.

Always use the .MovePosition() and .MoveRotation() methods on the Rigidbody (or Rigidbody2D) instance in order to move or rotate things. Doing this keeps the physics system informed about what is going on.

Collisions in high speed without unity physic / rigidbody

You say you're not using 2D physics but you're using queries therefore obviously colliders. This IS using 2D physics therefore you need to use it correctly so here are some basic rules: Don't ever modify the Transform if using 2D physics components If you want a 2D Collider to move then add a Rigidbody2D and use its API to move it; many ways to do this. Rigidbody2D don't make it "unresponsive". If you want explicit control then set the body-type to Kinematic; it's what it's for. When you qu…

OnCollisionEnter2D not being called

That’s not related to body-type. You should never drive via the Transform. The main thing to understand here is that the Rigidbody2D role is to write to the Transform after the physics simulation, not the other way around. It acts as a proxy to the Transform because you want physics behaviour. Does “it work” if you write to the Transform and force the Rigidbody2D to read from the Transform? Yes! It works like that because otherwise it’d be reported as a bug and so we’re forced to “support” it.…

[DaWheeeGod]

Sorry that I did post any code, I deleted the code I tried using. I did use a transform variable for movement and rotation because the player variable in this is a transform variable.

        //Player Movement
        Vector3 playerInput = new Vector3(Input.GetAxisRaw("Horizontal"), Input.GetAxisRaw("Vertical"), 0f);
        transform.position += playerInput * speed * Time.deltaTime;

        //Player rotation
        Vector3 displacement = player.position - Camera.main.ScreenToWorldPoint(Input.mousePosition);
        float angle = Mathf.Atan2(displacement.y, displacement.x) * Mathf.Rad2Deg;
        player.localRotation = Quaternion.Euler(0f, 0f, angle);

So to use a rigidbody would I make a variable public Rigidbody2D player; and then do a getcomponent statement in the start function to get the rigidbody?

[spiney199]

@DaWheeeGod

and then do a getcomponent statement in the start function to get the rigidbody?

If it’s public, just assign it through the inspector.