koobas.hobune.stream
transform.LookAt(target); in 2D?
You probabaly knows what the line does in the title. It makes the attached object point at the "target" which is a variable. Well it works fine in 3d, but not in 2d. In 2D, the game is in layers, so if i want it to point at something which is some layers behind the "pointer" it rotates against it. But i only want it to point at the object in a 2d perspective, so it only rotates on the Z axis. How do i do that?
By the wat the "pointer" is a arrow that shows you were to go.
I think this is the best one.. insert the tag of the object that u want to look at and play with the offset
public string Tag;
public float offset;
private Transform target;
private Vector3 targetPos;
private Vector3 thisPos;
private float angle;
void Start ()
{
target = GameObject.FindGameObjectWithTag(Tag).GetComponent<Transform>();
}
void LateUpdate()
{
targetPos = target.position;
thisPos = transform.position;
targetPos.x = targetPos.x - thisPos.x;
targetPos.y = targetPos.y - thisPos.y;
angle = Mathf.Atan2(targetPos.y, targetPos.x) * Mathf.Rad2Deg;
transform.rotation = Quaternion.Euler(new Vector3(0, 0, angle + offset));
}
the offset is used just in case your sprite doesn't look "up"
You can flatten your lookat position in the appropriate axis:
Vector3 targetPos = target.transform.position;
Vector3 targetPosFlattened = new Vector3(targetPos.x, targetPos.y, 0);
transform.LookAt(targetPosFlattened);
There's an amazingly simple solution in this thread (NOT the one marked as 'best' but the one below with the many votes!)
I save you a click:
transform.right = target.position - transform.position;
Just be sure target and transform are in the same Z, if not you may have to flat this coordinate.
first you have to take the direction to target gameobject then use Quaternion.FromToRotation(Vector3.up, direction) : the first parameter is the current gameobject's up direction and second parameter is the direction to the target gameobject.
public Transform target;
private void Update()
{
Vector2 direction = target.position - transform.position;
transform.rotation = Quaternion.FromToRotation(Vector3.up, direction);
}
