Help - Cant figure this out

Processing Coding Questions
1

This is supposed to produce vertical lines of varying colors and lengths and I can only get it to produce lines of the same color and length. I have looked at it over and over and I can’t figure out what I am doing wrong.

float randomZ;

void setup()
{
size(400,400);
background(250,250,0);
}

void draw()
{
strokeWeight(3);
stroke(random(0,85), random(86,170), random(171,256)); 
int x=0;
int y=0;
randomZ=random(50,width); 

for(x=0; x<=width; x+=20){
  for(randomZ=50; randomZ<height; randomZ++){
    line(x,y,x,randomZ);
  }
}
}
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2 



float randomZ;

void setup() {
  size(400, 400);
  background(250, 250, 0);
  frameRate(4);
}

void draw() {
  background(250, 250, 0);
  strokeWeight(3);
  stroke(random(0, 85), random(86, 170), random(171, 256));
  int x=0;
  int y=0;


  for (x=0; x<=width; x+=20) {
    randomZ=random(50, width);
    //  for (randomZ=50; randomZ<height; randomZ++) {
    line(x, y, x, randomZ);
    //  }
  }
}
1 Like
3

This is just a rough fixing of the code, but if move fill && randomZ to the for loop you get different colors & then you also need background in draw too. Try this out to see if like.

float randomZ;

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

}
void draw(){
  background(0);
  strokeWeight(3);
  int x=0;
  int y=0;
  for(x=0; x<=width; x+=20){
      randomZ=random(50,width);
      stroke(random(0,86), random(86,255), random(0,255));
      line(x,y,x,randomZ);
  }
}
1 Like
4

Thank you so much! I really appreciate your help.

1 Like
5

Thank you so much! I really appreciate your help!