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Asked: 2020-04-29 08:47:25 +0800 CST 2020-04-29 08:47:25 +0800 CST

Why if I put time = i , since i is a number, does Unity not pick it up?

  • 772

I have tiempo -= Time.deltaTime;and when it reaches 0 I want it to be replaced according to a variable that is being added, that is to say, i = 2when time reaches 0, what tiempo = 2, and then a tiempo = 3... because there will be a i++, but if I put it tiempo = ior tiempo = +inot it understands nothing and it doesn't take me i, why? they are floatboth.

code:

void Update(){

   float tiempo,i=2;
   tiempo -= Time.deltaTime;
   i++;

   if(tiempo == 0)
   tiempo = i;  // Esto no me coge que es i
}
unity

2 Answers

  1. Best Answer

    Surely time is never 0 because

    tiempo -= Time.deltaTime;

    reduce that variable by fractions, use

    if(tiempo <= 0)
   tiempo = i;
    • 2

  2. Although user3175146 's answer is part of the problem, perhaps a very important one, I think that even so this doesn't do what you want, and maybe now you are going "crazy" without knowing why it doesn't work for you, or even worse, maybe you are not aware of it. It doesn't work as you describe in your question to the mess:

    First case:

    void Update(){

    float tiempo = 1,i=2; //maracara un error pues no esta asignada asi que le ponemos 1 para hacer el test y que pueda compilar con unity
    tiempo -= Time.deltaTime;
    i++;

    //tiempo nunca sera mayor que dos y de pasar que time en la misma 
    //iterecion deje a tiempo como pide
    //esto solo durara hasta que se
    //vuelva a entrar en el Update pues al ser local la variable se 
    //vuelve a crear con el valor de 1

    Debug.Log("tiempo" + tiempo);

    if(tiempo <= 0)//se añade la correcion de user3175146 muy bien vista
    tiempo = i;  // Esto no me coge que es i
}

    Second case (although the variables are improved to global):

    float tiempo;
float i;

void Start(){

   tiempo = 1;
   i=2;
}
void Update(){

    tiempo -= Time.deltaTime;
    i++;

    Debug.Log("tiempo" + tiempo);

    if(tiempo <= 0)
    tiempo = i;  // Esto no me coge que es i
}

    Now even if you put them as global variables this will do things you don't want, because the update is called x times per frame, and iit increases in each update, so it is possible that time will take to be <= 0y when it is allocated inside the if. tiempo = i;100 is assigned the same as 200, who knows, because ias said, it increases each time you enter the update, and you say something like this in the question ... when time reaches 0, what time = 2, and after a tiempo = 3... but we already saw that time may never go through 2 or three in the assignment, except the first time it enters the if or so

    I think this is what you are looking for:

    float tiempo;
float i;

void Start(){

    tiempo = 1;
    i=2;
}

void Update(){

    Debug.Log("tiempo" + tiempo);

    tiempo -= Time.deltaTime;

    if(tiempo <= 0){

        tiempo = i;  // Esto no me coge que es i
        i++;         
    }
}

    Global variables initialize it in the Startfor example and without minimizing what user3175146 mentioned because it is a very important part, note that you have to increase the value i++inside the ifbone when time is <=0as user3175146 mentioned because what time it is == 0is a lottery, so each time the time is up this will be assigned the value ofi++

    Note: if you want it to increment first ibefore assigning it, then change the order inside the if.

    • 2