# Now this is odd...tiles

**URL:** https://forum.kirupa.com/t/now-this-is-odd-tiles/173598
**Category:** flash
**Created:** [December 27, 2005, 8:16pm UTC](https://forum.kirupa.com/t/now-this-is-odd-tiles/173598 "2005-12-27T20:16:48Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![Sammo](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/sammo/32/779_2.png) [@Sammo](https://forum.kirupa.com/u/Sammo)
#### Post date: [December 27, 2005, 8:16pm UTC](https://forum.kirupa.com/t/now-this-is-odd-tiles/173598/1 "2005-12-27T20:16:48Z")

</div>

```auto
tileW = 50;
tileH = 50;
var map:Array = [[3, 2, 2, 2, 2, 2, 2, 3, 1, 1], 
                  [3, 3, 3, 2, 2, 2, 3, 3, 1, 1], 
                  [1, 1, 3, 3, 3, 3, 3, 1, 1, 1], 
                  [1, 1, 1, 1, 1, 1, 4, 4, 4, 4], 
                  [1, 4, 4, 4, 4, 4, 4, 4, 4, 4],
                  [4, 4, 4, 4, 2, 2, 4, 4, 4, 4],
                  [4, 4, 4, 4, 2, 2, 4, 4, 4, 4],
                  [4, 4, 4, 4, 4, 2, 4, 4, 4, 4],
                  [1, 1, 1, 4, 4, 2, 4, 4, 1, 1],
                  [1, 1, 1, 1, 3, 2, 3, 1, 1, 1]
                ];
function drawMap(map) {
    mapH = map.length;
    mapW = map[0].length;
    num = 0;
    attachMovie("tile", "tile", mapH * mapW);
    for (i = 0; i < mapW; i++) {
        for (j = 0; j < mapH; j++) {
            tile.duplicateMovieClip("tile" + num, num);
            t = this["tile" + num];
            t.gotoAndStop(map[j]*);
            //trace(map*[j]);
            t._width = tileW;
            t._height = tileH;
            t._x = tileW * i;
            t._y = tileH * j;
            num++;
            //trace(num);
        }
    }
    tile.removeMovieClip();
}
function checkTile(x, y) {
    count = (mapH*mapW)-1;
    for (k=0; k<count; k++) {
        name = _root["tile"+k];
        if (name.hitTest(x,y)) {
            return "tile"+k;
        }
    }
}
drawMap(map);
_root.onMouseMove = function () {
    tile = checkTile(_xmouse, _ymouse);
    trace(tile);
}

```

Run of the mill stuff here. Generating a map from a 3d array. Tile based worlds…yada yada yada.

Then we get onto the checkTile function which is a function (as the name implies) that checks the tile that those x and y co-ords are on. To test it I asigned to to the mouse co-ords. And it was all working well, until you hover over the last tile (bottom left) which should be tile99, but comes up in my output window as undefined…umm, **what the hell?**  
.fla attached (flash 8 as the forum suggests)

**P.S.** Not too keen on these new code colours I have to say…