koobas.hobune.stream
How would I shoot out a ray where the mouse is clicked and check for collision in 2D.
Basically what I want is to convert the code below into 2D so that it can detect the 2d colliders tags that the ray hits. I had this working in my 3d project, however simply making everything their 2D counterpart does not work. If someone could help me I would be eternally grateful.
if (Input.GetMouseButtonDown(0))
{
RaycastHit hit;
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
if (Physics.Raycast(ray, out hit))
{
if(hit.collider.tag == "whatever")
{
Do something;
}
Best Answer
For an Orthogonal camera:
Vector3 pos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
Collider2D c = Physics2D.OverlapPoint(pos);
if (c != null && c.tag == "whatever") {
// Do something
}
Note you can also use OnMouseDown() on the object to be clicked.
Wow I feel so dumb. I kept trying to use screentoworldpoint, but forgot to change my camera over to ortho. Thanks a lot for the help.
You can use ScreenToWorldPoint() with a Perspective camera as long as you set the 'z' parameter to the distance in front of the camera on the screen position before making the call.
