CODEWITHSUNDEEP
c#unity-game-enginegame-physicsraycasting
Yone
Yone

Reputation: 2134

RayCastHit2D does not detect Player

I am trying to cast a 2D Ray from an instantiated missile prefab as follows:

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

public class EnemyMissile : MonoBehaviour {


    void Update () {
        RaycastHit2D hit = Physics2D.Raycast(transform.position, Vector2.down,1f);
        Debug.DrawRay(transform.position, Vector2.down, Color.green);
        if(hit)
        {
            print("Hit");
        }
        else
        {
            print("No hit");
        }
    }
}

I can clearly see on the scene that the Ray goes through the Player: enter image description here

The Player has a Rigidbody2D and a BoxCollider2D as trigger: enter image description here

And the EnemyMissile has its own RigidBody2D and BoxCollider2D as trigger: enter image description here

However I see nothing printed on the console

The idea to cast a Ray from the missile is to play an AudioClip when the EnemyMissile is going towards Player.

I have seen: Raycast Hit Collider is Always NULL Physics2D.Raycast returning null

Thank you for your help.

EDIT to answer @Monofuse comment: When I select the Player the Transform is: x: 0.4567, y: -1.58, z: 0

enter image description here

When I select the missile the Transform is: x: 0.3699, y: -1.054, z: 0

enter image description here

EDIT to answer @Ada Nub:

I had by default both option checked: Queries Hit Triggers and Queries Start in Colliders.

Now I have unchecked Queries Start in Colliders, however the result is the same, I do not see the print on the console:

enter image description here

I have realized my mistake, I had the Information tab in the console not pressed: enter image description here

And now it works: enter image description here

Upvotes: 0

Views: 794

Answers (1)

Ada Nub
Ada Nub

Reputation: 64

Have you turned on 'Queries hit triggers' in Edit > Project Settings > Physics2D? Raycasts by default do not hit triggers, so this may be your issue.

Image of 'Queries hit triggers' option

The option right below it, 'Queries start in colliders', might also be worth looking into; since you're casting the raycast from inside the missile's collider, you'll probably want that option unchecked so that it doesn't count the missile it starts in as a hit.

Upvotes: 5

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