Growing Circle

th0mato

Hey, I want a circle to grow per second and reach a limit. I don't want to set the framrate down, because it seems to affect the mousePressed section, which I also want to use. How can I make the circle grow step by step and then reset the count variable? Maybe I messed up a little..

int startTime;
float a=30;
float count;
boolean start=false;

void setup()
{
  size(800,800);
  background(0);
  startTime=millis()/1000;
}

void draw()
{
  println(count);
  if(start)
  {
      count=millis()/1000 - startTime;
      a=a+count*10;
  }
      if(a>=290);
    {
      start=false;
      //startTime=millis()/1000;

    }
ellipse(width/2,height/2,a,a);
 // println(a);
}

void mousePressed()
{
      start=true;
}

kfrajer

Edit your post and format your code selecting it and hitting ctrl+o. Also make sure there is an empty line above and below your code.

Kf

th0mato

aah thanks a lot

kfrajer

When do you want to reset your count variable? After the circle reaches certain size?

CHECK you line 21... bug bug bug

Kf

final int initradius=30;
final int endradius=600;

int startTime;
int rad=initradius;
boolean start=false;

void setup()
{
  size(800, 800);
  startTime=millis();
}

void draw() {
  background(0);

  if (start) {
    if ((millis() - startTime) >=1000 ) {
      startTime=millis();
      rad=rad+10;
    }
  }

  if (rad>=endradius)
  {
    start=false;
  }
  ellipse(width/2, height/2, rad, rad);
}

void mousePressed()
{
  start=!start;
}

void keyPressed() {
  rad=initradius;
}

th0mato

thank you soooo much. can you also explain me, how to resest the radius with a second click instead of a key after the endradius is reached?

kfrajer

First click stops. Second click reset radius and restarts the effect.

void mousePressed() { start=!start;

if(start==true) rad=initradius; }

Kf