How to use a generated number once, before going on to the next number?

Salma4

I have managed to generate random numbers between 0 and 100, however, the program keeps on going with this function. It doesn't just pick one random number as needed, it just keeps on going with a list of different numbers. How do I change this?

(Sorry, noob with code here)

kfrajer

Are you running your random number generator inside your draw() function? That is what it seems it is happening here although it is a guess since you didn't provide your code. In general, draw runs 60 fps. You want to avoid your definition in that function. Instead, use a different approach like the one outlined below.

Kf

final float LOWLIM=0;
final float HIGHLIM=100;

float myNum;

void setup(){ size(400,600);}

void draw(){
  text("Press the space bar to get a number...",width/4,height/2);
}

void keyPressed(){
   if(keyCode==' '){
      myNum=random(LOWLIM,HIGHLIM);
      println("My current random value is: " + myNum);
   }
}

Chrisir

Store in a variable

Salma4

I have it in a void display function

Salma4

how do you store in a variable? the value will still keep on constantly changing

TfGuy44

So you only want to pick one random number? Run random() once in setup(), and store the result in a variable.

int result;

void setup(){
  size(400,400);
  result = int(random(100));
}

// ...

Salma4

ok I gave it more thought, i think i know what i need to do now