在 Unity 中使用 Raycast 进行碰撞检测

Question

The problem is about as simple as it sounds. I'm trying to use a raycast to determine if a player is on the ground in a 2D Unity Game. My code is this:

RaycastHit2D hit = Physics2D.Raycast(transform.position, -Vector2.up, 40, World);
if (hit.collider != null)
{
        print("touching");
}

I also have a public LayerMask World; up above and the layer "World" is set on the object I want to detect collisions to. I'm pretty new to this so I'm not sure why the raycast isn't working.

Answer 1

Unchecking "Queries start within collider" in the setting solved the issue.