mystery variable type change?

[westloar]

I'm using Point2D to specify co-ordinates in the game window.

This is working fine, I tried using Point2D.distance using my Point2D variables and it says that I'm entering a double.

I almost know that I am not, just before Point2D.distance is called I use line2D.setLine, using the point arguments, which works fine.

Here's my code, I even cast the mouseInfo instance into a point2D, but to no avail, please have a look at my code and tell me where I'm going wrong:

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public class Boomerang extends Sprite {     private static double DURATION = 0.5;  // secs    // total time to cycle through all the images    private int period;    // in ms; the game's animation period    private BricksManager brickMan;     private Point2D[] boomPath;     private int speed; //used to calculate how many nodes to create along the                       //boomerangs path.    protected int locx, locy;     private Boolean isVisible;     private JumperSprite rat;     private Line2D path;     private Point2D startPoint;     private Point2D nodeLength;             public Boomerang (int x, int y, BricksManager bm, ImagesLoader imsLd, int p, String name) {     ......    } public void fire(){     int midx = rat.getWidth()/2; //get the mid point of rat' sprite    int midy = rat.getHeight()/2;     startPoint.setLocation((rat.getXPosn() + midx), (rat.getYPosn() - midy));     //set the start of boomPath to the mid    //positions.         PointerInfo MousePosn = MouseInfo.getPointerInfo();         boomPath[1] = (Point2D) MousePosn.getLocation();         path.setLine(startPoint, boomPath[1]);         nodeLength = startPoint.distance(boomPath[1]);

I've tried using different arguments on startPoint and even taking it out and using this:

1	nodeLength = Point2D.distance(startPoint.getX(), startPoint.getY(), boomPath[1].getX(), boomPath[1].getY());

It again tells me I'm using doubles, I think that boomPath[1] is the culprit, but the api says getLocation() returns a point?

Please help!

[65K]

distance() returns a double, but nodeLength is a Point2D 

[westloar]

ahhhh, thankyou

can I cast distance to give a point?

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[ra4king]

Distance is a scalar, aka 1 value. How would you put distance into a point, which has an X and Y?

[westloar]

see I'm still thinking like it basically returns a point good point!

[westloar]

also, I fixed it, changed nodeLength into an int and cast the calculation into an int so I don't have horrible decimals to deal with

[ra4king]

Horrible decimals?

[westloar]

yer, it's not on the code I posted but node length is divided by 20-speed to work out the length of the node and I only want integers so it works more simply with my co-ordinates