Day3 homework

int xpos;

int ypos;

int velocity;

int c1;

int c2;

​

​

void setup(){

  size(500,500);

  xpos=width/10;//weird when I use actual number here

  ypos=height/2;

  velocity=8;

  c1=255;

  c2=0;

}

void draw(){

  background(c1,c2,0);

  fill(c2,c1,0);

  if(xpos>=width-25||xpos<=25){

    velocity=-1*velocity;

    /*it's kind of confusing that 

    why I don't need to discuss the other posibility.

    I actually saw some of the code from Galit. */

    if (c1==0&&c2;==255){

      c1=255;

      c2=0;

    }

    else if(c1==255 && c2==0){

      c1=0;

      c2=255;

    }

  }

  xpos=xpos+velocity;

​

  smooth();

  ellipse(xpos,ypos,50,50);

  }