Data Layer String Meaning? [Question]

[diaosuyidsy]

Sorry to leave this question here but what does the data in Data Layer mean? I am trying to write my owner parser. When empty it shows AAAAAAA. When filled with first selected tiles it shows AgICAgAA.

[Epono]

Hi.

*Disclaimer: It's been a while since I used it, so I might not be 100% correct. *

It depends on the layer type. For what I remember:

• If it's a tile or ground layer, it's a Base64 encoded 1D array (with a size of width*height) of tile IDs.
  If you're using Haxe, there is an helper function, you can retrieve it like this :

var tilesArray:Array<Int> = tileLayer.data.data.decode();

• If it's an object layer, it's a Base64 encoded 1D array of 3-uples (one object is represented by 3 consecutive values, respectively x, y and ID).
  Again, there is an helper function in Haxe :

var objectsArray:Array<Int> = objectsLayer.data.data.decode()

See this function for a more complete example.

If you enabled compression (LZ4), you'll have to decompress it first.

You can read more at castledb.org under The Data Model > Column Types and Map Editor >Tile Layers > Objects Mode.

You can also take a look at this library I started a while ago to streamline the use of CDB data for HaxeFlixel (a simple 2D framework for Haxe).

[diaosuyidsy]

@Epono Thank you for the explanation, it was very clear! For the Tile Layer, was it encrypted further somehow? Because when I put the encoded string into an online decoder or use the c# decoding method it yields null characters. For instance, when Tile ID is 0000, encoded string shows AAAAAA==, but on the online encoder it shows MDAwMA==