Game Object under Mouse after selection

Unity Engine
1

Hello,

I´ve some GUI Buttons. With a mouse-left-click on one button you can choose a game object. With another left-click on the terrain you can place it.

Now i want to see after the click on the button, the game object under my mouse (maybe a bit transparent), so you can place it a lot easier. Here is the the part of the code:

function Update () {


    if(Input.GetMouseButtonDown(0))
    {

    var hit : RaycastHit;
    var ray : Ray = Camera.main.ScreenPointToRay(Input.mousePosition);

    if(Physics.Raycast(ray,hit,300))
    {

    Instantiate(buildingType,hit.point,Quaternion.identity);
 
}
2

Try adding an OnMouseEnter() function into your class.

3

Could you describe it a bit more.

The building should only be under the mouse curser, after clicking the GUI element. It should disappear with the mouse-left click (for placing the object), or the right-mouse to cancel the action.

The example which you can find in the docs hasn´t much to do with that issue, it´s more like a mouse-over.

function OnMouseEnter () {
    renderer.material.color = Color.red;
}
4

Still couldn´t figure it out.

5

/push

6 
#pragma strict

import System;

function Update () {
    if(Input.GetMouseButtonDown(0))
    {
	    var hit : RaycastHit;
	    var ray : Ray = Camera.main.ScreenPointToRay(Input.mousePosition);
	    if(Physics.Raycast(ray,hit,300))
	    {
	    	hit.transform.renderer.material.color = Color.red;
		}
	}
}

That code would make something you click change color. Now its up to you to decide how you should make it change back after you unclick and what not.
I would recommend maybe a list of objects you clicked, then if you clicked the right button, go throw them and change material back?

7

Thanks, but i don´t need a color change.

8

No tips?