Hi I am currently writing a pool game, the following code needs some images but if you comment those lines of code out it will work.

Anyway, my problem is that I cant get the cue to stay pointed around the white ball but follow the mouse so that the cue points in the direction of where the cursor is, any help would be appereciated



Ball r1, r2, r3, r4, r5, r6, r7, y1, y2, y3, y4, y5, y6, y7, b1, w1;
int w1XPos = 175;
int w1YPos = 0;
PImage cue;
PImage carpet;

void setup()
{
strokeWeight(2);
size(800, 600);
cue = loadImage("Cue.jpg");
carpet = loadImage("floor.jpg");
}

void draw()
{

smooth();
stroke (0);

background (carpet);

translate(width /2, height /2);
fill(50, 50, 50);
rect (-320, -250, 350, 40);//rack
fill (102, 51, 0);
point (0, 0);
rect (-320, -150, 640, 340);//surround
PImage cloth = loadImage("Cloth.jpg");
image(cloth, -300, -130);
rect(600, 300, cloth.width, cloth.height);//cloth
//rect (-300, -130, 600, 300);//cloth
fill(0, 0, 0);
ellipse (300, 170, 35, 35);//bottom right pocket
ellipse (-300, 170, 35, 35);//bottom left pocket
ellipse (0, 165, 35, 35);//bottom middle pocket
ellipse (290, -122, 35, 35);//top right pocket
ellipse (-290, -122, 35, 35);//top left pocket
ellipse (0, -125, 35, 35);//top middle pocket
//28 difference on the y axis, 25 on x axis
r1 = new Ball(-118, 20, 0, 25);
r2 = new Ball(-168, -8, 0, 25);
r3 = new Ball(-168, 48, 0, 25);
r4 = new Ball(-193, 33, 0, 25);
r5 = new Ball(-218, 74, 0, 25);
r6 = new Ball(-218, 46, 0, 25);
r7 = new Ball(-218, -10, 0, 25);
y1 = new Ball(-143, 5, 1, 25);
y2 = new Ball(-143, 35, 1, 25);
y3 = new Ball(-193, 61, 1, 25);
y4 = new Ball(-193, 5, 1, 25);
y5 = new Ball(-193, -23, 1, 25);
y6 = new Ball(-218, 18, 1, 25);
y7 = new Ball(-218, -38, 1, 25);
b1 = new Ball(-168, 20, 3, 25);
w1 = new Ball(w1XPos, w1YPos, 2, 25);
r1.draw();
y1.draw();
y2.draw();
b1.draw();
r2.draw();
r3.draw();
y3.draw();
r4.draw();
y4.draw();
y5.draw();
r5.draw();
r6.draw();
y6.draw();
r7.draw();
y7.draw();
w1.draw();


image (cue,  + mouseX , + mouseY);
}


class Ball
{
 int bSize;
 int xCoord;
 int yCoord;
 int ballColour;
 float speed;
 boolean potted = false;

 Ball(int xPos, int yPos, int colour, int ballSize)
 {
    bSize = ballSize;
    ballColour = colour;
    xCoord = xPos;
    yCoord = yPos;
 }
 
 void draw()
 {
   pushMatrix();
   int cRed = color (255, 0, 0);
   int cBlack = color (0, 0, 0);
   int cYellow = color (255, 255, 25);
   int cWhite = color (255, 255, 255);
   stroke(0);
   noStroke();
   
   if (ballColour == 0) //red
   {
     fill(cRed);
   }
   else if (ballColour == 1) //yellow
   {
     fill(cYellow);
   }
   else if (ballColour == 2) //White
   {
     fill(cWhite);
   }
   else if (ballColour == 3) //Black
   {
     fill(cBlack);
   }
   ellipse (xCoord, yCoord, bSize, bSize);
   popMatrix();
 }
}