koobas.hobune.stream
CLick on terrain and record vector3 location I clicked at?
I need to click the terrain and know the location which i clicked at in order to tell a unity to go to that location. how do I click the terrain and retrieve at which location I clicked? should I use a raycast and collision or what? HELP!
Use a ray, e.g.
var ray = Camera.main.ScreenPointToRay (Input.mousePosition);
var hit : RaycastHit;
if (Physics.Raycast (ray, hit, 100))
{
Debug.DrawLine (ray.origin, hit.point);
}
Send a ray cast from mouse position then you can get all the information you need from the raycast hit
var ray = Camera.main.ScreenPointToRay (Input.mousePosition);
var hit : RaycastHit;
if (Physics.Raycast (ray, hit, 100)) {
var hitPoint = hit.point;
}
$$anonymous$$e has the vector3 of the point under the mouse though
var clickPoint : Vector3;
function Update()
{
var ray = Camera.main.ScreenPointToRay (Input.mousePosition);
var hit : RaycastHit;
if (Physics.Raycast (ray, hit, 100) && Input.GetButton("Fire1"))
{
Debug.DrawLine (ray.origin, hit.point,Color.red);
clickPoint = hit.point;
}
This will help you visualize the ray and the hit point but you could improve this code. Invert the condition order in the if-statement. The &&-connected conditions in if-statement are processed in order, so only if the first succeeds, the second one is valuated. Raycasting is considered to be too expensive operation (CPU intensive) to be used in every Update call. If you put the raycast condition on the second place of that if-statement, it is not evaluated until Fire1 is held down. And you want to make that Fire1 evaluation with GetButtonDown ins$$anonymous$$d GetButton. That also saves your processing power cos it will only evaluate once per fire click, and not the whole time while it is held pressed.
