Making Object follow mouse while staying at ground height

Unity Engine
1

Probably this has been answered in some kind of way but i’m having too much trouble finding it.

So the problem is, let’s say for example i have ObjectA and I want to it’s position to be the same as the mouses while still being on ground height (for the time being let’s say y = 0 ). So if i’m pointing with my mouse on a location that is (1, 1, 0) i want that object to have the same coordinates. This probably ain’t done with the ScreenToWorldPoint but rather with the raycast but i’m having troubles with it :S. Could anyone help me go about this ?

2

Ok, so basically, you need to Raycast on the Plane and then go there.
I did it with a Navmesh and a NavMeshAgent, so it’s like any TopDown games, so you can click and it finds a Path.

    private Transform myTransform;				// this transform
	private Vector3 targetPosition;				// The destination Point
	private float targetDistance;				//Distance between Char and Poit of Ray
	private RaycastHit rayHit;					//Stores the Information of the Raycasthit
	private Vector3 eP;
	private float rangeDistance;

void Start () {
		myTransform = transform;
		targetPosition = myTransform.position;
		rangeDistance = 0.5f;
}

void Update () {

		// Moves the Player if the Right Mouse Button was clicked
		Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
		if (Input.GetMouseButtonDown(1) GUIUtility.hotControl == 0) {
			
			Plane playerPlane = new Plane(Vector3.up, myTransform.position);
			float hitdist = 0.0f;
				if (playerPlane.Raycast(ray, out hitdist)) {
					Vector3 targetPoint = ray.GetPoint(hitdist);
					targetPosition = ray.GetPoint(hitdist);
					rangeDistance = 0.5f;
				}

// keep track of the distance between this gameObject and targetPosition
		targetDistance = Vector3.Distance(targetPosition, myTransform.position);
		// Set the Movement according to the State
		if(targetDistance > rangeDistance){
			GetComponent<NavMeshAgent>().destination = targetPosition;
		}else{
			targetPosition = transform.position;
			GetComponent<NavMeshAgent>().destination = targetPosition;
		}
}

I think the script is self explaining, if you need any Help with it, simply comment.
For the NavMesh, quickly look it up on Youtube, it’s really not difficult.

As a Reminder: Think about each operation which is done here and do not copy paste the script. Try to learn from it.

Greez Joker_54

3

Yeh it actually isn’t that difficult, I guess I had a few problems understanding how to get the raycast to work as I wanted.
Thanks again for helping me out with this, really appreciate it.