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Callback when player enters TileMap Tile

by Deozaan · in Torque Game Builder · 12/10/2009 (3:29 am) · 5 replies

Hello,

I've got a large Tilemap with collisions working just fine, and next I would like to have something special happen when the player enters a specific tile. I'm just wondering if there's something built into TileMaps that would allow this.

There is TileScript but I have no idea what this is or how it works.

Would it be easiest to just put a Trigger or invisible SceneObject there and check for collisions or is there something really obvious that I'm missing?

Thanks in advance for your help.
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Associate William Lee Sims
Machine Code Games
#1
12/10/2009 (4:42 am)
There isn't anything that I know of. In the past, I had only a few spots and just placed triggers. But if it could happen on, say, a whole class of tiles, you might use pickTile and set/getTileCustomData to determine what should happen at that tile.

Torque Owner Deozaan
#2
12/31/2009 (10:17 pm)
If I recall correctly, pickTile uses world coordinates and returns tilemap coordinates.

Is there anything that does the opposite? You give it a tile and it returns world coordinates?

I need to know the world coordinates of a specific (but randomly chosen each time) tile so that I know where to place the trigger.

Thanks.

Torque Owner Aditya Kulkarni
Loon Games
#3
01/01/2010 (12:18 am)
taken from astardemo code...

//GET WORLD POSITION FROM TILE CO-ORDINATES
function getTileWorldPosition(%tileXPosition, %tileYPosition) {
   // determine if we were passed a word-list or x/y coords

   %tileLayer = tilemap1;    //YOUR TILEMAP NAME

   if(getWordCount(%tileXPosition) > 1)
   {
      %tilex = getWord(%tileXPosition, 0);
      %tiley = getWord(%tileXPosition, 1);
   }
   else
   {
      %tilex = %tileXPosition;
      %tiley = %tileYPosition;
   }
   
   // %buff just stores stuff real quick -- I like 'getSize' over 'getSizeX', personal preference
   %buff = %tileLayer.getTileSize();
   %tsx = getWord(%buff, 0);
   %tsy = getWord(%buff, 1);
   
   %buff = %tileLayer.getTileCount();
   %tcx = getWord(%buff, 0);
   %tcy = getWord(%buff, 1);
   
   %p = %tileLayer.getPosition();
   %px = getWord(%p, 0);
   %py = getWord(%p, 1);
   
   // get the top-left
   %tlx = -(((%tcx * %tsx) / 2) + (%tsx / 2));
   %tly = -(((%tcy * %tsy) / 2) + (%tsy / 2));
   
   // determine tile world position
   %wx = %px + (%tlx + (%tsx * (%tilex++)));
   %wy = %py + (%tly + (%tsy * (%tiley++)));
   return %wx SPC %wy;
}

Torque Owner Deozaan
#4
01/01/2010 (2:05 am)
Thank you very much.

Torque Owner Aditya Kulkarni
Loon Games
#5
01/01/2010 (1:56 pm)
no problem