Unity3D gameObject 标签对我不起作用

Question

I have this line of code, but when i run this in unity it destroys itself when comes to contact with anything, but i want to do this only when with contact with the Player. I am sure that the player tag has been assigned correctly. I'm a beginner so it's probably something very dumb. Thank you for any help!

if (other.gameObject.CompareTag("Player")) ;
    {
        Debug.Log("collision w/ " + other.gameObject.name);
        theScore += 50;
        scoreText.GetComponent<Text>().text = "SCORE: " + theScore;
        Destroy(gameObject);
    }

Answer 1

Ok, so the statements are all correct. You just added one too many ; behind the if-statement. If-Statements do not need a ; since the {...} ends the statements.

The correct code is hence:

if (other.gameObject.CompareTag("Player")) //no semicolon here
{
    Debug.Log("collision w/ " + other.gameObject.name);
    theScore += 50;
    scoreText.GetComponent<Text>().text = "SCORE: " + theScore;
    Destroy(gameObject);
}

Answer 2

Firstly, you are not supposed to add a ; after an if statement.

if (other.gameObject.CompareTag("Player")) //no semicolon here
{
    Debug.Log("collision w/ " + other.gameObject.name);
    theScore += 50;
    scoreText.GetComponent<Text>().text = "SCORE: " + theScore;
    Destroy(gameObject);
}

And if you have to destroy the gameObject collided with, then replace:

Destroy(gameObject);

With:

Destroy(other.gameObject);