CODEWITHSUNDEEP
c#unity-game-engine
Seaky Lone
Seaky Lone

Reputation: 1035

Unity image.enabled=false does not work

I tried both setting enabled to true and SetActive(true) to diplay a Gameover Image. However, none of them works. I have a public Image gameOverImage declared and set the gameOverImage.enabled in the Start() to false.

enter image description here

private void Start()
{
     gameOverImage.enabled = false;
}

Then in one of my function, I put:

public void killAt(Vector2 loc)
{
    foreach (GameObject obj in setup.GetActive())
    {
        if (obj.GetComponent<PieceInfo>().GetLocation() == loc)
        {
            if (obj.GetComponent<PieceInfo>().GetPieceType() == 'G')
            {
                gameOver = true;
                gameOverImage.enabled = true;
                Debug.Log("?????");
            }
            setup.deactivate(obj);
            break;
        }
    }
}

The console does have ????? logged but no gameOverImage displayed in the game view. The game is over because I couldn't click my game any more. Any ideas? I also tried UI text. It doesn't work as well.

enter image description here

Upvotes: 0

Views: 11619

Answers (1)

AresCaelum
AresCaelum

Reputation: 1566

In Unity in order to activate an object you need to have it in the scene. If the GameObject does not exist in the scene, or in your case the UI Element that contains the Image, is not in your scene SetActive(true) or Enabled = true will not have any effect. You will need to instantiate the object. To make it exist in your world.

Prefabs, are useful to store a common configuration that can be used multiple times in your game but they do not exist in the scene, that is why you have to instantiate them.

For your GameOver Image you have a few options the simplest is this:

using UnityEngine;
using UnityEngine.UI;
public class EnableUI : MonoBehaviour {
    public Image GameOverImage;
    // Use this for initialization
    void Start () {
        GameOverImage.gameObject.SetActive(false);
    }

    // Update is called once per frame
    void Update () {
        if(Input.GetKeyDown(KeyCode.Space))
        {
            GameOverImage.gameObject.SetActive(true);
        }
    }
}

If you want to instantiate it:

using UnityEngine;
public class EnableUI : MonoBehaviour {
    // This is a prefab that is canvas with your game over image nested as a child image UI under it
    public GameObject GameOverObject;
    // Use this for initialization
    void Start () { }

    // Update is called once per frame
    void Update () {
        if(Input.GetKeyDown(KeyCode.Space))
        {
            Instantiate(GameOverObject);
        }
    }
}

Upvotes: 2

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