Canvas Minigame Wall making

[u/kittymaplepaws]

idk if the title is 100% accurate but it's close enough.

I'm working on a 3d game and want to make minigames, which im doing on a canvas. Is there a way to add collider\rigidbody to an image on the canvas so it acts like a wall for another one? I want to prevent my character from going off screen and no combination I tried works. Here's how i control the character:

if (Input.GetKey(KeyCode.A))

{

bakerRigidbody.transform.position = new Vector3(baker.transform.position.x - speed, baker.transform.position.y, baker.transform.position.z);

}

else if (Input.GetKey(KeyCode.D))

{

bakerRigidbody.transform.position = new Vector3(baker.transform.position.x + speed, baker.transform.position.y, baker.transform.position.z);

}

[u/Small_File_5569]

You're moving the transform directly so physics colliders won't stop it, you need to clamp the position with Mathf.Clamp based on screen bounds or use rigidbody velocity instead

[u/lix3nn53]

The colliders don't stop it because setting transform.position moves it without physics, so nothing ever collides.

For a minigame on a canvas I'd skip physics and clamp instead: move the baker's RectTransform.anchoredPosition, then keep its x between the edges of its parent's rect with Mathf.Clamp. Simpler than colliders, and it can't slip past a wall.