Why my RayCast doesn't work as expected

Unity Engine
,
1

My RayCast practicce scripts will be below

RaycastHit hitinfo;
transform.Translate(transform.TransformDirection(Input.GetAxis(“Horizontal”),0,Input.GetAxis(“Vertical”)));
Debug.DrawRay(shoot.transform.position,shoot.transform.TransformDirection(-Vector3.right)*10,Color.red);
bool collide = Physics.Raycast(shoot.transform.position,shoot.transform.TransformDirection(-Vector3.right)*10,out hitinfo,20f);
if(collide)
{
Debug.Log(“hit something”);
}

else
{
Debug.Log(“hit nothing”);

}
}

In play mode, as first beginning, the ray coming from the shoot hit a Cube, and console Debug.Log–>Hit Something

But when I move the shooter the place, and move back , targeting the Cube, console no longer Debug.Log
–>Hit Something. It always say “Hit Nothing”
That’s very weird, at first it does work, but when move back it doesn’t work anymore

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2

What’s “shoot” in your script?

You’ve moving the transform of the object the component is added to using the input axis, but then you’re raycasting from “shoot” which seems to be a different object.

As a side note, shoot.transform.TransformDirection(-Vector3.right) is the same as -shoot.transform.right

3

Yes, the shoot means the rectangle attached to the capsule
I want to draw ray from shoot position; therefore I use shoot.transform.position.

That’s very weird, at first it works, and returns gameobject such as cube1, cube2,…
but when moving back, then it doesn’t work as it did before.

4

Raycast asks for a direction (normalized), there is no need for that “*10”.