Drawray bug

Hi
I am trying to make script for an enemie spaceship in a 3d space shooter.
The enemi avoid obstacles by using therphysic.raycast method to cast 4 ray that allow it to know if it's going to collide with an object, I have used debug.drawray to see where the raycast are but the ray move away from their relativr position to the enemie when the enemie move . Here is the code for the ray:

Vector3 left = transform.position + Vector3.left * rayOffset;
Vector3 right =transform.position + Vector3.right * rayOffset;
Vector3 up = transform.position + Vector3.up * rayOffset;
Vector3 down = transform.position + Vector3.down * rayOffset;

Debug.DrawRay(left, transform.forward * detectionDistance, Color.blue);
Debug.DrawRay(right, transform.forward * detectionDistance, Color.blue);
Debug.DrawRay(up, transform.forward * detectionDistance, Color. blue);
Debug.DrawRay(down, transform.forward * detectionDistance, Color.blue);

If someone can help me thank you in advance

 

You are calculating the ray start positions by Vector3.left/right/up/down (world coordinate) offsets, but then you are raycasting with

transform.forward

, which is local coordinates, i.e, change depending on which way you're facing.

NOTE: there is no

transform.down

, just use

-transform.up

. Same with left and back.

 

I know that they will change direction depending on the way the object is facing that is intentional but my problem is that the rays also move slighly of their positioon relative to the object as the object move

 

Ok i understand what you meant thank you very much

Heres the code


Vector3 left = transform.position - transform.right * rayOffset;
Vector3 right =transform.position + transform.right * rayOffset;
Vector3 up = transform.position + transform.up * rayOffset;
Vector3 down = transform.position - transform.up * rayOffset;

Debug.DrawRay(left, transform.forward * detectionDistance, Color.blue);
Debug.DrawRay(right, transform.forward * detectionDistance, Color.blue);
Debug.DrawRay(up, transform.forward * detectionDistance, Color. blue);
Debug.DrawRay(down, transform.forward * detectionDistance, Color.blue);