Converting otbm2json to Python with to_json and to_otbm example scripts

.gitignore

@@ -0,0 +1,9 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# PyInstaller
+dist/
+build/
+*.spec

README.md

@@ -1,32 +1,43 @@
 # OTBM2JSON
+
 NodeJS library for programmatically modifying Open Tibia Binary Mapping files. This framework reads .otbm files and parses them to an intermediary JSON format. This JSON structure can be changed programatically to make generic modifications. Once a change has been committed to the structure, it can be encoded back to an .otbm file.
 
 # JSON Structure
+
 The structure of the intermediary JSON format read from and to `.otbm` can be seen in the example `OTBM.json`.
 
 # Usage
+
 Import the library in your script:
 
     const otbm2json = require("./otbm2json.js");
 
 The library provides two functions for reading and writing OTBM:
 
     data = otbm2json.read(filename);
-    
+
     ** Modify the data object here **
-    
+
     otbm2json.write(filename, data);
 
 For an example see below.
 
 # Example
-An example script `examples/example.js` is provided. This script uses the `examples/void.otbm` (8x8 void area) in this repository and replaces all void tiles with chessboard tiles and writes the result to  `examples/chess.otbm`.
+
+An example script `examples/example.js` is provided. This script uses the `examples/void.otbm` (8x8 void area) in this repository and replaces all void tiles with chessboard tiles and writes the result to `examples/chess.otbm`.
 
 <p align="center">
   <img src="images/void.png">
   <img src="images/convert.png">
   <img src="images/chess.png">
 </p>
 
+# Python
+
+There is also a Python version of this script in `/py` directory.
+You can run `python ./py/to_json.py` or `python ./py/to_otbm.py` as example.
+This is very handy for handling large files.
+
 # Version
+
 Current version 0.2.0. This is a work in progress.

py/headers.py

@@ -0,0 +1,36 @@
+HEADERS = {
+    "OTBM_MAP_HEADER": 0x00,
+    "OTBM_MAP_DATA": 0x02,
+    "OTBM_TILE_AREA": 0x04,
+    "OTBM_TILE": 0x05,
+    "OTBM_ITEM": 0x06,
+    "OTBM_TOWNS": 0x0C,
+    "OTBM_TOWN": 0x0D,
+    "OTBM_HOUSETILE": 0x0E,
+    "OTBM_WAYPOINTS": 0x0F,
+    "OTBM_WAYPOINT": 0x10,
+
+    "OTBM_ATTR_DESCRIPTION": 0x01,
+    "OTBM_ATTR_EXT_FILE": 0x02,
+    "OTBM_ATTR_TILE_FLAGS": 0x03,
+    "OTBM_ATTR_ACTION_ID": 0x04,
+    "OTBM_ATTR_UNIQUE_ID": 0x05,
+    "OTBM_ATTR_TEXT": 0x06,
+    "OTBM_ATTR_DESC": 0x07,
+    "OTBM_ATTR_TELE_DEST": 0x08,
+    "OTBM_ATTR_ITEM": 0x09,
+    "OTBM_ATTR_DEPOT_ID": 0x0A,
+    "OTBM_ATTR_EXT_SPAWN_FILE": 0x0B,
+    "OTBM_ATTR_EXT_HOUSE_FILE": 0x0D,
+    "OTBM_ATTR_HOUSEDOORID": 0x0E,
+    "OTBM_ATTR_COUNT": 0x0F,
+    "OTBM_ATTR_RUNE_CHARGES": 0x16,
+
+    "TILESTATE_NONE": 0x0000,
+    "TILESTATE_PROTECTIONZONE": 0x0001,
+    "TILESTATE_DEPRECATED": 0x0002,
+    "TILESTATE_NOPVP": 0x0004,
+    "TILESTATE_NOLOGOUT": 0x0008,
+    "TILESTATE_PVPZONE": 0x0010,
+    "TILESTATE_REFRESH": 0x0020,
+}