Arx Libertatis Bug Tracker ~ [OPEN] #1004 - Add support for patching resources instead of replacing them entirely

Arx Libertatis Bug Tracker

OPEN Feature request #1004 - Add support for patching resources instead of replacing them entirely

Posted May 16, 2017 - updated Jun 30, 2021 Shortlink: http://arx.vg/1004

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Daniel Scharrer

Daniel Scharrer
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Issue description

We need this to avoid licensing issues for asset bug fixes and mods.

Simple binary patches should work for most resources but multiple mods can (in general) not patch the same file without conflicting.

For others (.ini files like the localization), just appending data could also work.

We may need to support loading different patches depending on the version of the original resource (full game / demo / language). A crc32 or md5 checksum could be used to select the appropriate patch. For our own needs it may be enough to load different patch archives depending on the data version, but that is less reasonable for mods.

Scripts may need a different (additional) solution to allow multiple mods to modify the same entity without conflicting: Feature request 1005 - Add support for wrapping script events