D2I Files

Introduction

The d2i format is used by Ankama to save the strings from the game for example: item name, dialogues, etc... The file varies from different languages but the structure stays the same.

The Structure

The File

The file is composed of four major parts:

  • The Datas
  • The Indexes
  • The UI Messages
  • some extra data

Each of those parts is composed of an Index (4 bytes) giving the size of the data that will follow except for the extra data.

The Datas

The datas are composed of three parts:

  • Size of all datas (4 bytes)
  • Size of the string (2 bytes orange)
  • The string in UTF-8 (X bytes gris)

The indexes

The Indexes since the 2.4X update have become a bit more complicated. The notion of diacritical was introduced (string without capitals or accents).

  • Size of all the indexes (4 bytes)
  • ID of the string; usually called in the d2o files (4 bytes orange)
  • Diacritical Exists? (boolean)(1 byte light blue )
  • Pointer to the string (4 bytes brown)
  • If diacritical exists then Pointer to the diacritical string (4 bytes dark blue)

The UI messages

The UI messages are messages which are given in certain packets that don't use the ID system

Example: ui.message.check0

Extra data

At the end of the file there is some extra data which I haven't had time to analyze yet.

Diagram

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