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Nimbus
Nimbus is a library for Python 3 which provides scriptable editing of Halo mapfiles, either on disk or in Halo's memory. Nimbus is compatible with Halo 1 PC on Windows.
Usage
As an example of modding at runtime, here we swap the projectile of the player's starting weapon with a more powerful projectile.
mem_example.py
import nimbus
map = nimbus.HaloMap.from_memory()
# weapons
pistol = map.tag('weap', '\\pistol')
rifle = map.tag('weap', 'assault rifle')
banshee_gun = map.tag('weap', 'banshee')
# vehicles
warthog = map.tag('vehi', 'warthog')
# projectiles
rocket = map.tag('proj', 'rocket')
plasma = map.tag('proj', 'plasma grenade')
# make edits
pistol.triggers[0].projectile = rocket # pistol now shoots rockets
rifle.triggers[0].projectile = rocket # assault rifle now shoots rockets
banshee_gun.triggers[0].projectile = warthog # banshee primary trigger now spawns warthogs
banshee_gun.triggers[1].projectile = plasma # banshee secondary trigger now shoots plasma grenades
License
The entirety of my work on this project is released under the 2-clause BSD license. While contributors retain copyright on their own work, I ask that pull requests also be released under the 2-clause BSD license.
Community
"If I have seen further it is by standing on the shoulders of giants." --Issac Newton
People
- conure: Proved that runtime edits are possible
- Modzy: Provided source code to Open Halo Parser and Pearl 2
- Oxide: Provided a simple C++ map parsing example and source code to Phasor
- Ryx: Provided x86 assembly which prevents Halo's graphics from pausing when alt-tabbed
- dirk: Provided source code to SDMHaloMapLoader
- Zero2: Explained reflexives, map magic, and map deprotection theory
- Btcc22: Assistance with C++ and reverse-engineering of the Halo executable