I'm having raycasting issues-CodePudding

I'm currently trying to have a raycast detect the player caracter to have an event happen when a specific key is pressed here is the code:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class action: MonoBehaviour
{
    public float dist;
    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        RaycastHit2D down = Physics2D.Raycast(transform.position, -Vector2.up, dist);
        Debug.Log(transform.position);
        if (Input.GetKeyDown(KeyCode.Z) == true && down.collider != null)
        {
            Debug.Log("hi");
        }  
    }
}

I'm basicly trying to make a small raycast,which is why I place a distance instead of letting it go infinitely, and have it so if the raycast is triggered and the player presses z the event happens(which for now is the debug console), but all it does now is triggers whenever I press z no matter where the player caracter is. I tried drawing the raycast but I can't seem to make it work.

CodePudding user response：

I think the reason for that is that the raycast is hitting the object containning the script it self and so the collider is allways non null try adding a LayerMask that differs from the GameObject's Layer

so it's something like this :

    RaycastHit2D down = Physics2D.Raycast(transform.position, -Vector2.up, 
    dist , 1 << /*The Target's Layer*/);

You can find the layer in the up left corner of your inspector when you click on a GameObject

CodePudding user response：

You have not provided a

Head to the Unity Documentation for LayerMask for more details.