2 dimensional vector how do i do it? plse help

[Guest]

Ls,

Im trying to create an x/y grid in  a 2 dimensional vector for reference of a boolean flag.

I thought it would be something like this below (doesnt work😞

var tabley:Vector.<Vector.<Boolean>>;
var tablex:Vector.<Boolean>;

var y:int = 0;
var x:int = 0;
tabley  = new Vector.<Vector.<Boolean>>(mapHeight,true);
for (y = 0; y< mapHeight;y++)
{
tablex = new Vector.<Boolean>(mapWidth,true);
for (x = 0; x< mapWidth;x++)
{
  traverstablex = true;
  trace("newt:", y, x, tablex );
}
tabley = Vector(tablex);
}

it all ends after the first x loop in a miserable:

...

newt: 0 29 true

newt: 0 30 true

newt: 0 31 true

TypeError: Error #1034: Type Coercion failed: cannot convert __AS3__.vec::Vector.<Boolean>@2a380b51 to __AS3__.vec.Vector.

at FruitGamev6_fla::MainTimeline/frame2()

at flash.display::MovieClip/gotoAndPlay()

at FruitGamev6_fla::MainTimeline/testlevel()

Any help is greatly appreciated.

Regards,

Mac

[kglad]

a vector in flash is a "typed" array.  it is not related to a mathematical vector.

[Guest]

Dude! im well Kglad to hear from you.

I dont understand your reply.

All i want is a vector (or an array; but since vector is so much faster.. )

That can contain:

Yrow(0) -> Xrows(10)  // xrow(0) = true,xrow(1) = true, xrow(2) = false...

Yrow(1) -> Xrows(10) // ...

Yrow(2) -> Xrows(10)

so i can reference the y,x coord and retrieve a boolena value or an int.

Some guy on a website suggested this (But cant seem to get it to work):

var v2:Vector.> ;
var v3:Vector.;

  v2 = new Vector.>();
  for (var ii:int = 0; ii < 10; ii++) {
   v3 = new Vector.();
   for (var iii:int = 0; iii < 10; iii++){
    v3[iii] = iii;
   }
  v2[ii]=v3;
  }

[kglad]

you have to datatype your vector array.  what datatype will your vector array contain?

[_spoboyle]

this worked for me

you didn't explain what traverstablex was so i assumed you meant tablex

tabley = new Vector.<Vector.<Boolean>>(mapHeight, true);
            for (var y:int = 0; y < mapHeight; y++)
            {
                var tablex:Vector.<Boolean> = new Vector.<Boolean>(mapWidth, true);
                for (var x:int = 0; x < mapWidth; x++)
                {
                    tablex = true;
                    trace("newt: ", y, x, tablex);
                }
                tabley = tablex;
            }

[Guest]

Hello _spoboyle,

Thank you for your reply.

I was so busy I missed it.

Your assumption is right, that was supposed to be tablex.

Actually, apart from the Vector cast at the end, i dont see the difference. Was that it?

I was gonna use it to remove a multiplication to calculate a tile coord from the updateframe event.

I dont know if a multidim. vector retains its speed benefit.

And, because it didnt get it to work, i'm now using a singledim vector for the ycoord alone.

The x coord only requires an add. so now its:  tabley[ycoord] + xcoord.

Wich saves me serveral multiplications.

Thank you for your help.

Ill try and see if i can get some more fps using the full vector routine you suggested.

Highest regards,

Mac

[_spoboyle]

firstly becase the contents of tablex are typed to Vector.<Boolean> you don't need to cast (this would be different if you were using Arrays for example)

the reason the cast failed was becase tabley is typed to only contain Vector.<Boolean> and by casting tablex to a Vector it fails

Vector is not the same as Vector.<Boolean>

I have not tried it but I assume you could use

tabley = Vector.<Boolean>(tablex); //although this is totally unnecessary