making the ball move both vertically but horizontally while it's changing to random colors

Fire_Assassin

i have this code so far but i really just want to ball to move vertically and horizontally while it's changing colors at the same time, it'll be awesome if you guys can help, i'm also new here.

int y = 0;
int speed = 5;

void setup() {

  size (200,200); 

  smooth(); 
}

void draw() {
  background (255); 

  y = y + speed; 

  if (( y>width) || (y<0)) { 
    speed = speed * -1;
  }

  stroke (0); 

  fill(237,26,26);

  ellipse (100, y+16, 32, 32);
}

kfrajer

Please edit your post (gear icon in the top right corner of your post), select your code and hit ctrl+o to format your code. Make sure there is an empty line above and below your code.

Are you familiar with this reference keyword: https://processing.org/reference/lerpColor_.html

Fixing your code a bit, demo below.

Kf

final int r=16;
int y = r; 
int speed = 5;

final color from = color(204, 102, 0);
final color to = color(0, 102, 153);



void setup() {
  size (200, 200);
  smooth();
  stroke (0);
}

void draw() { 
  background (255);

  y = y + speed;

  if (( y>height-r) || (y<r)) { 
    speed = speed * -1;
  }

  color interA = lerpColor(from, to, y*1.0/height);
  fill(interA);
  ellipse (width/2, y, 2*r, 2*r);
}

Fire_Assassin

thanks dude

Fire_Assassin

do you think you can make the ball bounce around the screen as well

kfrajer

Check https://processing.org/examples/

Specifically: https://processing.org/examples/bounce.html

Kf