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Libribex · Guest

Hi,

1.

I'm doing a small dot-catching game applet; it works fine, except that
when you catch the dot and you level up to a more jumpy and smaller
dot (by pushing a button that appears), the values go wrong...

// first, the bit where the button is added

public void mousePressed(MouseEvent e) {
// if mouse pointer was pressed down on dot:
if ( (e.getX() > xPos) & (e.getX() < xPos+diameter) &
(e.getY() > yPos) & (e.getY() < yPos+diameter) ) {
caught = true;
add(levelUpButton);
levelUpButton.addActionListener(this);
this.validate();
}
repaint();
}

// and then when that button is clicked:

public void actionPerformed(ActionEvent e) {

...

if(e.getSource() == levelUpButton) {
dotJumpPower++;
if (diameter > 10) diameter--;
caught = false;
levelUpButton.removeActionListener(this);
remove(levelUpButton);
this.validate();
}
}

So dotJumpPower and diameter should go up and down by just one for
every increase in level. Yet what happens is that the first time you
level up, they are in/decremented by one; the second time by two; the
third time by three; etc.

Can anyone spot why this could be, and how to get rid of it?

2.

Incidentally, is there a better way to check if the click is on my dot
set by

g.fillOval(xPos, yPos, diameter,diameter);

? Now I'm just checking whether the mouse pointer is in an imaginary
/box/ that just covers the oval (see first bit of code), but it would
be nicer if I could check for the exact space of the oval.

Thanks a lot!

-libribex

Andrew Thompson · Guest

"Libribex" <Libribex (AT) yahoo (DOT) com> wrote