bouncing ball

gistfile1.txt

float x = 100;
float y = 100;
float xSpeed = 1;
float ySpeed = 3.3;

void setup(){
  size(200,200);
  smooth();
  background(255);
}

void draw(){
  background(0);
  
  changeSpeed();
  testEdge();
  drawBall(50,50);
}

void changeSpeed(){
  x=x+xSpeed;
  y=y+ySpeed;
}

void testEdge(){
  if(x > width || x < 0){
    xSpeed = xSpeed * -1;
  }
  if(y > height || y < 0){
    ySpeed = ySpeed * -1;
  }
}

void drawBall(int xwidth, int yheight){
  stroke(0);
  fill(175);
  ellipse(x,y,xwidth,yheight);
}