Property tree

2024-12-27T18:30:44Z

Rasendubi: Add description of types 6 and 7 (new in Factorio 2.0)

A PropertyTree (the Factorio class name) is a recursive variant format that holds a key <> value pair where the key may be empty and the value may be only one of the following types:

{| class="wikitable"
|+PropertyTreeType ([[Data_types#unsigned byte|unsigned byte]])
|-
! Value !! Name
|-
| 0 || [[Property_tree#None|none]]
|-
| 1 || [[Property_tree#Bool|bool]]
|-
| 2 || [[Property_tree#Number|number]]
|-
| 3 || [[Property_tree#String|string]]
|-
| 4 || [[Property_tree#List|list]]
|-
| 5 || [[Property_tree#Dictionary|dictionary]]
|-
| 6 || [[Property_tree#Signed integer|signed integer]]
|-
| 7 || [[Property_tree#Unsigned integer|unsigned integer]]
|}

== The file format ==

1 [[Data_types#unsigned byte|unsigned byte]] representing the PropertyTreeType.

1 [[Data_types#bool|bool]] the any-type flag (currently not important outside of Factorio internals; default value is false)

== Property Tree Type ==

=== None ===
Nothing

=== Bool ===
1 [[Data_types#bool|bool]]

=== Number ===
1 [[Data_types#double|double]]

=== String ===
1 [[Data_types#bool|bool]] if there is no string - then, if there is a string:

1 [[Data_types#Space optimized|Space optimized]] [[Data_types#unsigned int|unsigned int]] the size of the string

N [[Data_types#byte|byte]] the string contents

=== List ===
Identical to Dictionary

=== Dictionary ===
1 [[Data_types#unsigned int|unsigned int]] the number of PropertyTree elements

For each element:

1 '''string''' (See string type above) the dictionary element name or it can be empty if loading a list

1 [[Property_tree]]

=== Signed integer ===

1 [[Data_types#long|long]]

=== Unsigned integer ===

1 [[Data_types#unsigned long|unsigned long]]

[[Category:Technical]]

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Property tree