Question by ltrout1999 · Dec 12, 2016 at 02:52 AM · raycast raycasthit

Placing Object When in Certain Area?

I'm creating a Plinko styled game and I have already set up the board and now I'm trying to figure out how to setup the disc that it going to be dropped from the top. I was thinking of using a raycast to find the mouse position to position the disc where the mouse is, but I can't figure out how to make it to where the player can only place it in a certain area (the top part of the board). I was thinking about sticking a quad and tagging it with "Placeable" then using rayHit.transform.CompareTag("Placeable"), but it doesn't seem to work how I was hoping? Here is the code I have so far:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class RandomPos : MonoBehaviour 
 {
     bool isPlaced;
 
     void Start() 
     {
         //this.gameObject.transform.position = new Vector3 (Random.Range(-3.5f, 3.5f), 7, -1);
     }
 
     void FixedUpdate ()
     {
 
         RaycastHit rayHit;
         Ray ray = Camera.main.ScreenPointToRay (Input.mousePosition);
 
         if (Physics.Raycast (ray, out rayHit))
         {
             if (rayHit.transform.CompareTag("Placeable"))
             {
                 if (Input.GetMouseButtonDown(0) && !isPlaced)
                 {
                     this.gameObject.transform.position = rayHit.point;
                 }
             }
         }
     }
 }

Add comment · Show 3

doublemax · Dec 13, 2016 at 07:45 AM 0

In general this approach should work. $$anonymous$$aybe the ray hits another object? If yes, which one? Try putting the "Placeable" object into a separate layer and limit the ray to that layer.