SAMPFUNCS 5.5.0 (specifically for SA-MP 0.3.7-R5 ) is a critical plugin for GTA San Andreas Multiplayer (SA-MP) that expands the capabilities of the CLEO library, allowing developers to create more complex and stable scripts. While SAMPFUNCS was famously maintained by for years, the release for the
version of the game is primarily a compatibility patch, as the official development of the plugin ceased before this specific SA-MP client update. Core Functionality Expanded Opcode Library
: Adds hundreds of new opcodes to CLEO, enabling scripts to interact with the game engine, UI, and network packets in ways standard CLEO cannot. Console Access : Provides an in-game console (usually accessed by the
key) for debugging scripts, checking loaded mods, and executing commands. Plugin System : Supports
plugins, which are compiled C++ modules that run alongside the game for high-performance features. Packet Handling
: Allows scripts to intercept and modify data packets sent between the client and server (RPCs and BitStreams). Key Files & Structure sampfuncs 037 r5
When you install the R5-compatible version, the following files are typically involved: SAMPFUNCS.asi : The main plugin file placed in the game's root directory. SAMPFUNCS Folder : Generated upon first launch, containing: SAMPFUNCS.cfg
: Configuration file to toggle the console, multiprocess mode, and check for updates. sf_exception_log.txt : A log file used to diagnose crashes. R5 Compatibility Notes
The R5 version of SA-MP changed several memory addresses compared to the more common R1 version. Because of this: Strict Requirements : This specific version of SAMPFUNCS will work with the
client. If you use it on R1 or R4, the game will crash on startup. Installation : It requires and a standard gta_sa.exe v1.0 [US] to function correctly. Modern Fixes
: Many users now use "SAMPFUNCS Compatibility" patches or ASI loaders that allow scripts written for older versions to run on R5 without needing a specific R5-rebuild of the entire plugin. Common Configuration Settings SAMPFUNCS.cfg file, you can modify these common parameters: CheckUpdates = false SAMPFUNCS 5
: Prevents the plugin from looking for updates (useful since it is no longer officially updated). MultiProcess = true
: Allows you to open multiple instances of GTA San Andreas simultaneously. Console = true : Enables or disables the debugging console. troubleshoot crashes related to this specific version or find that require it?
The feature is called stratified_batch_sampler – a flexible, NumPy‑based utility for generating stratified mini‑batches from a dataset that may have one or more categorical “strata” (e.g., class labels, user IDs, geographic regions, etc.).
It satisfies a number of common needs that developers repeatedly ask for:
| Need | How the feature solves it |
|------|---------------------------|
| Deterministic reproducibility | Optional seed argument that seeds the internal RNG. |
| Balanced class representation per batch | Guarantees that each batch contains (as close as possible) the same proportion of each class as in the whole dataset. |
| Support for multiple stratification keys | Accepts any number of categorical columns; the algorithm computes the joint distribution and respects it. |
| Fast, vectorised implementation | Pure NumPy, no Python loops over samples (except a tiny loop over batches). |
| Compatibility with existing sampfuncs API | Returns an iterator of integer index arrays, just like the other samplers in the package. |
| Graceful handling of edge‑cases | Works when some strata are smaller than the desired per‑batch count, automatically merges them into the “overflow” bucket. |
| Test coverage | Unit‑tests (pytest) and a small benchmark script are provided. | How to Install SAMPFUNCS 0
SAMPFUNCS.asi and SAMPFUNCS folder from your GTA San Andreas root directory.gta_sa.exe lives).The plugin now throws a helpful sampfuncs_log.txt error instead of just crashing to desktop. If you install R5 and your game doesn’t boot, check that log file—it will tell you exactly which Cleo script is incompatible.
def stratified_batch_sampler(
*,
labels: np.ndarray,
batch_size: int,
*,
stratify_on: Sequence[str] | None = None,
extra_strata: Mapping[str, np.ndarray] | None = None,
shuffle: bool = True,
seed: int | None = None,
drop_last: bool = False,
) -> Iterator[np.ndarray]:
"""
Yield index arrays for stratified mini‑batches.
Parameters
----------
labels : np.ndarray
One‑dimensional array of integer class labels for each sample.
``labels[i]`` is the primary stratification key. It **must** be
convertible to ``np.int64``.
batch_size : int
Desired number of samples per batch (may be adjusted slightly
to keep strata balanced).
stratify_on : sequence of str, optional
Column names of additional categorical columns that live in
``extra_strata``. If ``None`` (default) only ``labels`` are used.
extra_strata : Mapping[str, np.ndarray], optional
Mapping from column name → 1‑D array of the same length as ``labels``.
Each array contains integer codes for the extra categorical variable.
Example: ``'user_id': user_ids, 'region': region_codes``.
shuffle : bool, default True
Whether to shuffle the order of samples *within* each stratum before
creating batches. The order of batches themselves is also shuffled.
seed : int, optional
Random seed for reproducibility. If ``None`` the global NumPy RNG
state is used.
drop_last : bool, default False
If ``True`` discard the final incomplete batch. If ``False`` the
last batch may be smaller than ``batch_size`` and will contain the
remaining samples.
Yields
------
batch_idx : np.ndarray
1‑D array of integer indices that belong to the next mini‑batch.
Example
-------
>>> import numpy as np
>>> from sampfuncs import stratified_batch_sampler
>>> y = np.random.randint(0, 3, size=1000) # 3 classes
>>> for batch in stratified_batch_sampler(labels=y, batch_size=64):
... # `batch` contains roughly the same class ratios as `y`
... pass
"""
If you’ve been navigating the chaotic streets of San Andreas in SA-MP (San Andreas Multiplayer), you’ve likely heard the whispers in the lobby or seen the acronym in a mod description: SAMPFUNCS.
As of today, the latest stable version—SAMPFUNCS 0.3.7 R5—is the gold standard for client-side modding. Whether you are a stunt montage creator, a roleplay heavy user, or a developer testing scripts, here is why you need to update to R5 right now.
Before we dissect the specific "037 r5" iteration, let’s define the base tool. SAMPFUNCS is an ASI plugin (a script library loaded by the game’s executable) that acts as a bridge between the single-player game engine and the multiplayer client.
It is essentially a framework that allows other mods (often called "cleo mods" or "SF scripts") to interact with SA:MP’s memory addresses, network streams, and packet structures. Without SAMPFUNCS, many advanced mods simply would not function online because they would lack the necessary permissions or memory access to read player positions, weapon data, or vehicle information in real-time.
SAMPFUNCS 0.3.7 R5 allows scripts to read the chat log without relying on pixel scanning. It can capture OnServerMessage, OnPlayerChat, and even interact with textdraws (the graphical UI elements servers use for fuel gauges or job menus). This allows for automated response systems—useful for testers or anti-lag tools.