Save Order

This page is mostly for me to reference, since once the save system is done there is little need to know what each binary sequence corresponds to. However, it doesnt hurt to keep this here, does it?

Each .pwdr file is saved in the same way. It represents the simulation as a binary file. Here is the order in which the binary is saved and what each number represents:

When a bullet point is indented, it is instanced a variable number of times within that indentation level.

A PascalString that acts as a key and a header: "PWEngine {version number}"
A 32-bit integer; the position to put the pointer when reading the file to find the offset dictionary.
A 16-bit integer; Number of elements
- A PascalString for every element's name
An 8-bit integer; The number of cell-specific fields each cell is created with
A 32-bit integer; the number of chunks saved
- A 32-bit integer; the X-position of the current chunk
- A 32-bit integer; the Y-position of the current chunk
- A 32-bit integer; The number of
  runs after the cells were compressed (using RLE)
  - A 32-bit integer; The length of the current run (generated with RLE)
  - A 16-bit integer; The element of the current cell, expressed as the index to the name in the lookup table generated above.
    - An 8-bit integer; one of the cell-specific fields the current cell has.
A 32-bit integer; The amount of chunks in the file offset dict
- A 32-bit integer; The X-position of the current chunk in this file offset dictionary
- A 32-bit integer; The Y-position of the current chunk
- A 32-bit integer; The file offset of the chunk.