CODEWITHSUNDEEP
unity-game-engine
Braulio
Braulio

Reputation: 1

Why won't my game instantiate?

I don't know why the Insantiation doesn't work. I'm trying to do it with the space bar. Or could it be something about the axis?

public GameObject projectile;
public Transform padre, hijo;
public Rigidbody r;
private float value;

void Start () {
    padre = transform.parent;
    hijo = transform.GetChild (0);
    value = 0;
}

void Update () {

    float j = Input.GetAxis ("Jump");
    if (j == 1 && value == 0) {
        Instantiate (projectile, hijo.position, hijo.transform.rotation);
    }

    float h = Input.GetAxis ("Horizontal2");
    r.transform.Translate (h * Time.deltaTime, 0, 0);

    float v = Input.GetAxis ("Vertical2");
    padre.Rotate (0, 0, -v * Time.deltaTime * 20);

    value = j;
}

Upvotes: 0

Views: 38

Answers (2)

Programmer
Programmer

Reputation: 125435

Comparing float is never a good idea.

The j variable must equal 1 and value variable must be 0 before that if statement becomes true. Input.GetAxis returns values between 0 and 1.

If all you want to do is instantiate a GameObject when the Space key is pressed they simply use Input.GetKeyDown instead of Input.GetAxis

if (Input.GetKeyDown(KeyCode.Space))
{
    Instantiate(projectile, hijo.position, hijo.transform.rotation);
}

Upvotes: 2

code11
code11

Reputation: 2319

You're checking j to exactly equal 1. However, getAxis returns a float that will be close, but not exactly equal to 1. Instead check for when j is close enough to 1.

For instance (pseudocode):

float j = Input.GetAxis ("Jump");
float ep=.1f;
if (Math.abs(j-1)<ep && value == 0) {
   //Instantiate

Also, you should make sure that value is in fact equal to 0 (You might have some other code modifying it beyond whats shown)

Upvotes: 0

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