koobas.hobune.stream
Get coordinates of mouse-click on plane
I'm basically a newbie with Unity. I've created some simple projects from tutorials but only have basic understanding. I have a plane in 3D space. I want to click on the plane with the mouse and get the coordinates for that click (i.e. whereabouts on the plane I clicked) . Currently I can only get the world coordinates on-click. I tried getting the position of the plane in world space so that I can convert my mouse click coordinates to plane coordinates but this doesn't do what I expected and actually gives me the coordinates on plane relative to the transform associate with my player script. I feel like there may be a better way to do this anyway.
Here is my simplified PlayerMovement script:
public class PlayerMovement : MonoBehaviour {
// Use this for initialization
void Start () {
plane = GetComponent(typeof(MeshFilter)) as MeshFilter;
}
void Update() {
if (Input.GetMouseButtonDown (0)) {
Debug.Log ("mouseDown = " + Input.mousePosition.x + " " + Input.mousePosition.y);
Debug.Log ("position in plane = " + plane.transform.position);
}
}
}
I'd really appreciate any pointers here. I imagine it's simple enough when you know how. I have looked at quite a few articles and pieces of documentation but I just can't find a solution. Thanks in advance.
Well this is an old post but it might help someone else now. What i use for 2D stuff is this:
worldCoordinates = Camera.main.ScreenToWorldPoint(Input.mousePosition); { Debug.Log(worldCoordinates.x); Debug.Log(worldCoordinates.y); }
I dont know if its the best approach but it works like a charm.
You can try this:
private void Update()
{
if (Input.GetMouseButtonDown(0))
{
clicked();
}
}
void Clicked()
{
var ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hit = new RaycastHit();
if (Physics.Raycast (ray, out hit))
{
Debug.Log(hit.collider.gameObject.name);
}
}
let me know if you have questions.
Hi, thankyou SteenPetersen, however i tried a raycasting solution similar to this previously and I always get the error: NullReferenceException: Object reference not set to an instance of an object Player$$anonymous$$ovement.Clicked () (at Assets/Scripts/Player$$anonymous$$ovement.cs:15) Player$$anonymous$$ovement.Update () (at Assets/Scripts/Player$$anonymous$$ovement.cs:10)
which is the line: var ray = Camera.main.ScreenPointToRay(Input.mousePosition);
I have had exactly the same problem previously. Am I doing something wrong with my camera or something like this?
can you post the relevant script for me please?
Yes of course....
using System.Collections; using System.Collections.Generic; using UnityEngine;
public class Player$$anonymous$$ovement : $$anonymous$$onoBehaviour {
private void Update() {
if (Input.Get$$anonymous$$ouseButtonDown(0))
{
Clicked();
}
}
void Clicked() {
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hit = new RaycastHit();
if (Physics.Raycast (ray, out hit))
{
Debug.Log(hit.collider.gameObject.name);
}
}
}
