class Bouncer{
  float xpos;
  float ypos;
  float xvel;
  float yvel;
  int r=30;//radius
  
  //keeps track of which direction the Bouncer is moving
  boolean negXVelocity = false;
  boolean negYVelocity = false;
  
  //****CONSTRUCTOR*****//
  Bouncer(float xp, float yp, float xv, float yv) {
    xpos=xp;
    ypos=yp;
    xvel=xv;
    yvel=yv;
  }
  void draw() {
    ellipseMode(CENTER);
    noStroke();
    ellipse(xpos,ypos,r,r);
  }
  int getXPos(){
    return int(xpos);
  }
  int getYPos(){
    return int(ypos);
  }
  boolean testVel(boolean v){
    if(v==true){
      v=false;
    }else{
      v=true;
    }
    return v;
  }
  void move() {
    if(keyPressed){
      switch(key){
      case '2':
      xvel = yvel = 2;
      break;
      case '3':
      xvel = yvel = 3;
      break;     
      case '4':
      xvel = yvel = 4;
      break;
      case '5':
      xvel = yvel = 5;
      break;
      case '6':
      xvel = yvel = 6;
      break;
      case '7':
      xvel = yvel = 7;
      break;     
      case '8':
      xvel = yvel = 8;
      break;
      case '9':
      xvel = yvel = 9;
      break;
      default:
      xvel = yvel = 1;
      }
      if (negXVelocity==true){
        xvel*=-1;
      };
      if (negYVelocity==true){
        yvel*=-1;
      };
    }
    //create movement
    xpos+=xvel;
    ypos+=yvel;
    int radius = r/2;
    //create vars for placement detection
    int left=radius;
    int right=width-radius;
    int top=radius;
    int bottom=height-radius-2;
    
    //if too far left or right, send opposite direction
    if(xpos > right){
      xpos = right-10;
      xvel=xvel*-1;
      negXVelocity=testVel(negXVelocity);
      }
    else if(xpos<left){ 
      xpos = left+10;
      xvel=xvel*-1;
      negXVelocity=testVel(negXVelocity);
    }
    
    //if too low or high, send opposite direction
    if(ypos < top){ 
     ypos = top +10;
     yvel=yvel*-1; 
     negYVelocity=testVel(negYVelocity);
    } 
    else if(ypos > bottom){
     ypos = bottom-10;
     yvel=yvel*-1; 
     negYVelocity=testVel(negYVelocity);
    }    
  }
}