Cursor, Cueball, Code

class Cursor {
  CueBall ball;
  float x, y, z;
  
  
  Cursor(){
    x = mouseX;
    y = mouseY;
    z = 0;
  }
  
  Cursor(CueBall ball){
    x = mouseX;
    y = mouseY;
    z = 0;
    this.setCueBall(ball);
  } 
 
  void setCueBall(CueBall ball){
    this.ball = ball;
  }
 
  float getX(){
    return x;
  }
  float getY(){
    return y;
  }
  
  float angle(){
    return atan((mouseY-ball.getY())/(mouseX - ball.getX()));
  }
  
  void display(){
    pushMatrix();
    fill(255);
    rectMode(CENTER);
    translate(mouseX, mouseY);
    rotate(angle());
    stroke(180, 50, 50);
    box(175, 5, 5);
    popMatrix();
  }

}

class CueBall extends Ball{
  color cue = color(255);
  float x, y, z;
  float vX, vY, vZ;
  float aX, aY, aZ;
  float fX, fY, fZ, fF;
  float keX, keY, keZ;
  float m = 0.16; //kilograms
  
  CueBall(){
    x = width/2;
    y = height/2;
    z = 10;
    vX = 0;
    vY = 0;
    vZ = 0;
    aX = 0;
    aY = 0; 
    aZ = 0;
    fX = 0;
    fY = 0;
    fZ = 0;
    keX = 0;
    keY = 0;
    keZ = 0;
  }
  
  void display(){
    pushMatrix();
    lights();
    translate(x, y, z);
    fill(cue);
    if(!mouseHere()){
      noStroke();
    }
    else{
      stroke(180, 50, 50);
    }
    sphere(10); //millimeters
    popMatrix();
  }
  
  float getX(){
    return x;
  }
  float getY(){
    return y;
  }
  float getZ(){
    return z;
  }
  float getVX(){
    return vX;
  }
  float getVY(){
    return vY;
  }
  float getVZ(){
    return vZ;
  }
  void setX(float x){
    this.x = x;
  }
  void setY(float y){
    this.y = y;
  }
  void setZ(float z){
    this.z = z;
  }
  void setVX(float x){
    this.vX = x;
  }
  void setVY(float y){
    this.vY = y;
  }
  void setVZ(float z){
    this.vZ = z;
  }
  
  boolean mouseHere(){
    return abs(dist(mouseX, mouseY, getX(), getY()) - 92.50) <= 5; 
  }
  
  void drive(){
    x = x + vX;
    y = y + vY;
    z = z + vZ;
  }
}

class Board {
  color board = color(0, 80, 0);  
  float x, y, z;
  
  Board(){
    x = width/2;
    y = height/2;
    z = 0;
  }
  
  void display(){
    pushMatrix();
    lights();
    rectMode(CENTER);
    stroke(250);
    fill(board);
    rect(x, y, 900, 450); //millimeters
    popMatrix();
  }
  
}

CueBall cue;
Board b;
Cursor stick;

void setup(){
  frameRate(60);
  size(1200, 750, P3D);
  background(25); 
  cue = new CueBall();
  b = new Board();
  stick = new Cursor(cue);
}

void draw(){
  background(25);
  cue.display();
  b.display();
  stick.display();
  cue.drive();
  println("MouseDistX: " + (cue.getX() - mouseX));
  println("MouseDistY: " + (cue.getY() - mouseY));
  println("X component: " + (int)(87.5 * cos(stick.angle())));
  println("Y component: " + (int)(87.5 * sin(stick.angle())));
}

void mouseClicked(){
  if(cue.mouseHere()){
    if(cue.getX() - mouseX > 0){
      cue.setVX(cue.getVX() + ((cue.getX() - mouseX) - 87.5 * cos(stick.angle()))/2.5);
      cue.setVY(cue.getVY() + ((cue.getY() - mouseY) - 87.5 * sin(stick.angle()))/2.5);
    }
    else{
      cue.setVX(cue.getVX() + ((cue.getX() - mouseX) + 87.5 * cos(stick.angle())));
      cue.setVY(cue.getVY() + ((cue.getY() - mouseY) + 87.5 * sin(stick.angle())));
    }
 }  

}