My score system doesn't display or work? Please help me!

Questions & Answers
1

I am making a game that has a scoring system but it doesn’t work. I am trying to make it where if the enemy dies the player gets 10 points and so on. So, I made a GUIText to display the score and made a script with the following:

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class Score : MonoBehaviour
{
public GUIText scoreText;
private int score;

void Start()
{
    score = 0;
    Update();
}

public void AddScore(int newScoreValue)
{
    score += newScoreValue;
    Update();
}

void Update()
{
    scoreText.text = "Score: " + score;
}

}
and on the enemy side, I put the next following script so it can die when hit and to scores a point but it doesn’t work.

using UnityEngine;
using System.Collections;

public class Damagebycrash : MonoBehaviour {
int health = 1;
public int scoreValue;
private Score score;

void OnTriggerEnter2D(Collider2D collider)    {
    if(collider.tag == "Invaders"){
        score.AddScore(scoreValue);
    }

    Debug.Log("Trigger!!");

    health--;

    if (health <= 0) {
        Die();
    }
}

void Die()
{
    Destroy(gameObject);
}

}
so yeah please help me?

2

First of all, “void Update()” method is called at every frame automatically. So there isn’t really need to call Update () in your Start () and AddScore (int value).

Since i am lacking detailed information as to whether what is happening and what is not, I will be relying on my assumption based on the evaluation of only the code you posted.

I assume that enemies will die when collision is triggered. Correct?
But I don’t think your Score variable (private Score score) is assigned to anything yet. Hence, score.AddScore(scoreValue); will not do anything.

Try:

public static void AddScore(int newScoreValue) {
      score += newScoreValue;
}

for your method in Score and you also need to make your score declaration to be “static int score”

void OnTriggerEnter2D(Collider2D collider){
       if(collider.tag == "Invaders") {
            Score.AddScore(scoreValue);
      }
}

for your enemies’ script.

This way, all enemies’ scripts will have access to static method from Score script without having to assign the Score class variable.

Hope this helps : )