fivefury 0.1.25

Python library for GTA V asset workflows including YMAP, YTYP, RPF, YTD and GameFileCache utilities.

FiveFury

FiveFury is a Python library for GTA V asset workflows.

It provides practical support for:

• YDR read/write for static drawable workflows, including materials, drawable models, and lights
• YCD read support for clip dictionaries and animation metadata
• YMAP read/write
• YTYP read/write
• RPF7 OPEN archives and nested .rpf
• ZIP -> RPF, RPF -> ZIP, and RPF -> folder
• opening encrypted standalone .rpf files without preloading game keys
• fast asset indexing with GameFileCache
• texture extraction from YTD, GTXD parent chains and embedded dictionaries in YDR, YDD, YFT and YPT

Installation

pip install fivefury

For local development from a checkout:

pip install -e .

Python 3.11+ is required.

API Style

The preferred high-level authoring style is now:

• add_* for collections
• set_* for single assignments or bindings
• build() to normalize derived state before serialization
• validate() to collect consistency issues

Some newer high-level helpers were renamed to match that convention. If you were using recent pre-release YDR helpers, notable renames are:

• create_bone(...) -> add_bone(...)
• embed_texture(...) -> add_embedded_texture(...)
• unembed_texture(...) -> remove_embedded_texture(...)
• use_bound(...) -> set_bound(...)
• skin_model(...) -> set_model_skin(...)

Quick Start

Create a YMAP

from fivefury import Ymap

ymap = Ymap(name="example_map")

# Entities
ymap.entity("prop_tree_pine_01", position=(100, 200, 0), lod_dist=150.0)
ymap.entity("prop_bench_01a", position=(105, 200, 0), lod_dist=80.0)

# Car generators
ymap.car_gen("sultan", (110, 205, 0), heading=90)
ymap.car_gen("adder", (115, 205, 0), heading=90, body_colors=(5, 10), livery=2)

# Time cycle modifiers (center + size)
ymap.time_cycle_modifier("interior_dark", (100, 200, 5), (50, 50, 20), hours=(20, 6))

# Box occluders (position + size + angle in degrees)
ymap.box_occluder(position=(100, 200, 0), size=(10, 10, 10), angle=45)

# Occlude models
ymap.occlude_box((-5, -5, 0), (5, 5, 10))
ymap.occlude_quad([(0, 0, 0), (10, 0, 0), (10, 0, 10), (0, 0, 10)])

ymap.save("example_map.ymap", auto_extents=True)

If you want an internal resource path, set ymap.resource_name before saving.

Load a YMAP

from pathlib import Path

from fivefury import Ymap

ymap = Ymap.from_bytes(Path("example_map.ymap").read_bytes())

print(len(ymap.entities))
print(len(ymap.car_generators))
print(ymap.flags, ymap.content_flags)

for cg in ymap.car_generators:
    print(cg.car_model, cg.heading, cg.body_colors)

Create a YTYP

from fivefury import Archetype, ParticleEffectExtension, Ytyp

ytyp = Ytyp(name="example_types")

archetype = Archetype(
    name="prop_tree_pine_01",
    lod_dist=150.0,
    asset_type=0,
    bb_min=(-1.5, -1.5, -0.5),
    bb_max=(1.5, 1.5, 8.0),
    bs_centre=(0.0, 0.0, 3.5),
    bs_radius=5.0,
)
archetype.add_extension(
    ParticleEffectExtension(
        name="fx_tree",
        fx_name="scr_wheel_burnout",
        fx_type=2,
        scale=0.8,
    )
)

ytyp.add_archetype(archetype)
ytyp.save("example_types.ytyp")

Pack Assets into an RPF

from fivefury import Ymap, create_rpf

ymap = Ymap(name="packed_map")
ymap.entity("prop_tree_pine_01", position=(0.0, 0.0, 0.0), lod_dist=120.0)

archive = create_rpf("mods.rpf")
archive.add("stream/packed_map.ymap", ymap)
archive.add("docs/readme.txt", b"hello from fivefury")
archive.save("mods.rpf")

Convert between ZIP, RPF, and folders

from fivefury import RpfExportMode, rpf_to_folder, rpf_to_zip, zip_to_rpf

zip_to_rpf("unpacked_mod_folder", "packed_mod.rpf")
rpf_to_zip("packed_mod.rpf", "packed_mod.zip", mode=RpfExportMode.STANDALONE)
rpf_to_folder("packed_mod.rpf", "packed_mod", mode=RpfExportMode.STANDALONE)

Directories ending in .rpf are packed as nested archives.

Open an encrypted standalone RPF

from fivefury import RpfArchive

archive = RpfArchive.from_path(r"C:\mods\dlc.rpf")
print(len(archive.all_entries))

Encrypted standalone archives can be opened directly. FiveFury initializes the bundled GTA V crypto context automatically.

Export mode overview

from fivefury import RpfArchive, RpfExportMode

archive = RpfArchive.from_path("packed_mod.rpf")

archive.to_folder("out_standalone", mode=RpfExportMode.STANDALONE)
archive.to_folder("out_logical", mode=RpfExportMode.LOGICAL)
archive.to_zip("out_stored.zip", mode=RpfExportMode.STORED)

print(RpfExportMode.STANDALONE.description)

RpfExportMode controls what gets written:

• STORED: raw entry bytes as stored in the archive
• STANDALONE: valid standalone files, including RSC7 containers for resources
• LOGICAL: logical payloads with resource containers removed

YDR

Read and edit a YDR

from fivefury import BoundSphere, BoundType, TextureFormat, read_ydr

ydr = read_ydr("prop_example.ydr")

print(ydr.model_count)
print(len(ydr.lights))
print(ydr.materials[0].shader_name)

ydr.update_material(
    0,
    shader="spec.sps",
    textures={
        "DiffuseSampler": "prop_example_d",
        "SpecSampler": "prop_example_s",
        "BumpSampler": None,
    },
    parameters={
        "specularIntensityMult": 2.0,
    },
)

ydr.add_embedded_texture(
    name="prop_example_d",
    data=bytes([255, 255, 255, 255] * 16),
    width=4,
    height=4,
    format=TextureFormat.A8R8G8B8,
)

ydr.set_bound(
    BoundSphere(
        bound_type=BoundType.SPHERE,
        box_min=(-0.5, -0.5, -0.5),
        box_max=(0.5, 0.5, 0.5),
        box_center=(0.0, 0.0, 0.0),
        sphere_center=(0.0, 0.0, 0.0),
        sphere_radius=0.75,
        margin=0.05,
    )
)

issues = ydr.validate()
print(issues)

ydr.save("prop_example_out.ydr")

FiveFury exposes:

• global ydr.materials
• per-model views through ydr.models
• parsed ydr.lights
• editable material shaders, samplers, and numeric parameters
• embedded texture helpers through add_embedded_texture(...) and remove_embedded_texture(...)
• embedded collision helpers through set_bound(...) and clear_bound()
• build() / validate() helpers for authoring flows

Skin a YDR model declaratively

from fivefury import read_ydr

ydr = read_ydr("weapon_example.ydr")

root = ydr.add_bone("root", tag=0)
child = ydr.add_bone("child", parent=root, tag=1)
ydr.ensure_skeleton().build()

ydr.set_model_skin(0, bone_index=0, palette_size=0xFF)
mesh = ydr.meshes[0]
mesh.set_skin(
    bone_ids=[root, child],
    weights=[
        (1.0, 0.0, 0.0, 0.0),
        (0.5, 0.5, 0.0, 0.0),
        (0.0, 1.0, 0.0, 0.0),
    ],
    indices=[
        (0, 0, 0, 0),
        (0, 1, 0, 0),
        (1, 0, 0, 0),
    ],
)

print(ydr.validate())
ydr.save("weapon_example_out.ydr")

Create a simple YDR

from fivefury import YdrLight, YdrLightType, YdrMeshInput, create_ydr

ydr = create_ydr(
    meshes=[
        YdrMeshInput(
            positions=[(0.0, 0.0, 0.0), (1.0, 0.0, 0.0), (0.0, 1.0, 0.0)],
            indices=[0, 1, 2],
            texcoords=[[(0.0, 0.0), (1.0, 0.0), (0.0, 1.0)]],
        )
    ],
    texture="example_diffuse",
    lights=[
        YdrLight(
            position=(0.0, 0.0, 5.0),
            intensity=3.0,
            light_type=YdrLightType.POINT,
        )
    ],
    name="example_drawable",
)

ydr.save("example_drawable.ydr")

Convert OBJ to YDR

from fivefury import obj_to_ydr

obj_to_ydr(
    r"C:\mods\example.obj",
    r"C:\mods\example.ydr",
    generate_ytyp=True,
)

This can also emit a companion YTYP with lowercase naming and textureDictionary set to <model>_txd.

YCD

Read a YCD clip dictionary

from fivefury import read_ycd

ycd = read_ycd("maude_mcs_1-0.ycd")

print(len(ycd.clips))
print(len(ycd.animations))
print(ycd.clips[0].short_name)
print(ycd.animations[0].duration)

GameFileCache

Scan a Game Installation

from fivefury import GameFileCache

cache = GameFileCache(
    r"C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto V",
    scan_workers=8,
    max_loaded_files=16,
)
cache.scan_game(use_index_cache=True)

print(cache.asset_count)
print(cache.stats_by_kind())

GameFileCache indexes loose files and archive contents, then loads supported formats lazily.

Control DLC and Scan Scope

from fivefury import GameFileCache

cache = GameFileCache(
    r"C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto V",
    dlc_level="mpbattle",
    exclude_folders="mods;scratch",
    load_audio=False,
    load_vehicles=True,
    load_peds=True,
)
cache.scan_game(use_index_cache=True)

Useful scan options:

• dlc_level: limit active DLCs
• exclude_folders: ignore folders by prefix
• load_audio: skip audio-related assets during scan
• load_vehicles: skip vehicle-related assets during scan
• load_peds: skip ped-related assets during scan
• use_index_cache: reuse the persisted scan index for faster startup

Look Up Assets by Name and Type

asset = cache.get_asset("prop_tree_pine_01", kind=".ydr")
print(asset.path)
print(asset.short_name_hash)

You can iterate the cache directly:

for asset in cache:
    print(asset.path, asset.kind)

Or iterate a specific kind:

for ydr in cache.iter_kind(".ydr"):
    print(ydr.path)

Read and Extract Assets

from pathlib import Path

asset = cache.get_asset("prop_tree_pine_01", kind=".ydr")
data = cache.read_bytes(asset, logical=True)
out_path = cache.extract_asset(asset, Path("prop_tree_pine_01.ydr"))

print(len(data))
print(out_path)

Common access patterns:

• get_asset(...): resolve one asset by path, name or hash
• read_bytes(...): get bytes directly
• get_file(...): build a lazy GameFile wrapper
• extract_asset(...): write the asset to disk

Extraction defaults to standalone file output. For resource assets such as YDR, YDD, YFT, YTD, YMAP and YTYP, this produces a valid standalone RSC7 file.

If you want the logical payload instead:

cache.extract_asset("prop_tree_pine_01", "prop_tree_pine_01_payload.ydr", logical=True)

Extract Textures for an Asset

GameFileCache can resolve textures from:

• direct YTD files
• texture_dictionary references from YTYP archetypes
• parent relationships from gtxd.meta
• embedded texture dictionaries inside YDR, YDD, YFT and YPT

from pathlib import Path

paths = cache.extract_asset_textures(
    "stt_prop_stunt_bowling_pin.yft",
    Path("bowling_pin_textures"),
)

for path in paths:
    print(path)

You can inspect the texture refs first:

for ref in cache.list_asset_textures("uppr_001_u.ydd"):
    print(ref.origin, ref.container_name, ref.texture.name)

Type Dictionaries

GameFileCache exposes lazy type dictionaries keyed by shortNameHash.

from fivefury import jenk_hash

ydr = cache.YdrDict[jenk_hash("prop_tree_pine_01")]
ytd = cache.YtdDict[jenk_hash("vehshare")]
ybn = cache.YbnDict[jenk_hash("v_carshowroom")]

Available dictionaries include YdrDict, YddDict, YtdDict, YmapDict, YtypDict, YftDict, YbnDict, YcdDict, YptDict, YndDict, YnvDict, YedDict, YwrDict, YvrDict, RelDict and Gxt2Dict.

Archetype Lookup

GameFileCache also builds a lazy global archetype lookup from indexed YTYP files.

archetype = cache.get_archetype("prop_tree_pine_01")
print(archetype.name)

for archetype in cache.iter_archetypes():
    print(archetype.name)

Global Hash Resolver

from fivefury import register_name, register_names_file, resolve_hash, jenk_hash

register_name("prop_tree_pine_01")
register_names_file("common_names.txt")

print(resolve_hash(jenk_hash("prop_tree_pine_01")))

The resolver is shared and optional. It is useful for display, lookups and tooling.