Correctly rendering objects

[Tissemand]

I seem to be having a small issue when trying to render large/long objects.


Whenever I display an item, I use UltimaSDK to get the image of an item.
When I position it, I find the difference relative to the client's body:

  // find deltas between self and object
  var dX = (object.x - self.x);
  var dY = (object.y - self.y);
  console.log('{0}: ({1}, {2})'.format(serial, dX, dY));
 
  var x = dX * 22 - dY * 22;
  var y = dY * 22 + dX * 22;
  y -= (object.z || 0);

As a result, I incorrectly get something like this:

instead of:

(the tiles are animated, so the itemids are slightly different)

Anyway, I'm wondering if there's a certain value that affects where an object is placed, or if there's just something I'm missing.

 

[Vorspire]

Did you factor in the Z-axis?

 

[Tissemand]

Yup. z just makes it go up (on the negative z).
Here's another example (the ankh gets broken up into parts because of this)