Need help on my Space Invaders Game

I attached a faulty version of the game that i have been working on
you can try it:
left arrrow: move left
right arrow: move right
space bar: shoot
i am trying to make the shots disappear once it touches the top of the border
i don't know y when i resize my shot vector it crashes...
please help on this~
thanks

i can't compile it since i only have msvc.

But after a quick glance at the code i see this

Code:

---

for( int index = 0; index < XShot.length(); index ++ )
{
gotoxy(XShot[index],YShot[index]);
cout << " " ;
if( YShot[index] > 2 )
{
YShot[index] --;
}
else
{
XShot[index] = XShot[index-1]; <---    XShot[-1] when index=0
YShot[index] = YShot[index-1]; <---        --""--
XShot.resize(XShot.length() - 1);
YShot.resize(YShot.length() - 1);
}
}

---

OH
thanks alot~
but now the bullets are flying everywhere?!!?
is there something wrong with the vectors?

this is what i did

Code:

---

else
            {
                  if( index > 1 )
                  {
                      XShot[index] = XShot[index-1];
                      YShot[index] = YShot[index-1];
                      XShot.resize(XShot.length() - 1);
                      YShot.resize(YShot.length() - 1);
                  }
            }

---

doesn't the vector class have a remove or delete function? It would be easier to use.

If not you can change the "dead" bullet with the last one int the vector.

XShot[index]=XShot[XShot.length()-1];
YShot[index]=YShot[YShot.length()-1];
XShot.resize(XShot.length() - 1);
YShot.resize(YShot.length() - 1);

ummm i dont know how to fully use the vector class yet...
still to newbie T__T
and for changing the last bullet ur way....
doesnt seem to work
it deletes the bullet when i press space again

vector.erase(int spot)
vector.erase(int begin,int end)

They might be iretators instead of ints though there isn't much difference.

Stan can u make its alil clearer....
i dont really understand or i am just too stupid XD