Struct samp::prelude::Amx

pub struct Amx { /* fields omitted */ }

A wrapper around a raw pointer to an AMX and exported functions.

Methods

impl Amx

pub fn new(ptr: *mut AMX, fn_table: usize) -> Amx

Create an AMX wrapper.

Arguments

ptr is a raw pointer passed by callbacks (AmxLoad for example).

fn_table is a address to the exported function from AMX.

Example

use samp_sdk::amx::Amx;
use samp_sdk::consts::ServerData;
use samp_sdk::raw::types::AMX;

static mut AMX_EXPORTS: usize = 0;

#[no_mangle]
pub extern "system" fn Load(server_data: *const usize) -> i32 {
    unsafe {
        AMX_EXPORTS = server_data.offset(ServerData::AmxExports.into()).read();
    }

    return 1;
}

#[no_mangle]
pub extern "system" fn AmxLoad(amx_ptr: *mut AMX) {
    let _amx = Amx::new(amx_ptr, unsafe { AMX_EXPORTS });
}

pub fn register(&self, natives: &[AMX_NATIVE_INFO]) -> Result<(), AmxError>

Register a list of plugin natives functions.

Example

use samp_sdk::amx::Amx;
use samp_sdk::raw::types::{AMX, AMX_NATIVE_INFO};

use std::ffi::CString;

#[no_mangle]
pub extern "system" fn AmxLoad(amx_ptr: *mut AMX) {
    // let amx_exports = ...; // see `Amx::new()` example.
    let amx = Amx::new(amx_ptr, amx_exports);
    let native_name = CString::new("MyNativeName").unwrap(); // that's safe, because there is no zero chars.
     
    let natives = vec![AMX_NATIVE_INFO {
        name: native_name.as_ptr(),
        func: my_native,
    }];

    let _ = amx.register(&natives);
}

extern "C" fn my_native(amx: *mut AMX, args: *mut i32) -> i32 {
    println!("YOYW!");
    return 0;
}

pub fn exec(&self, index: AmxExecIdx) -> Result<i32, AmxError>

Execs an AMX function.

Examples

use samp_sdk::amx::Amx;

fn log_player_money(amx: &Amx) {
    let index = amx.find_public("AntiCheat_GetPlayerMoney").unwrap();
    amx.push(1); // a player with ID 1

    match amx.exec(index) {
        Ok(money) => println!("Player {} has {} money.", 1, money),
        Err(err) => println!("Error: {:?}", err),
    }
}

pub fn find_native(&self, name: &str) -> Result<i32, AmxError>

Returns an index of a native by its name.

Examples

See find_public and exec examples.

pub fn find_public(&self, name: &str) -> Result<AmxExecIdx, AmxError>

Returns an index of a public by its name.

Examples

use samp_sdk::amx::Amx;
use samp_sdk::error::AmxResult;

fn has_on_player_connect(amx: &Amx) -> AmxResult<bool> {
    let public_index = amx.find_public("OnPlayerConnect")?;
    Ok(i32::from(public_index) >= 0)
}

pub fn find_pubvar<T>(&self, name: &str) -> Result<Ref<T>, AmxError> where
    T: AmxPrimitive, 

Returns a pointer to a public variable.

Example

use samp_sdk::amx::Amx;

// let amx = Amx::new(...);
let version = amx.find_pubvar::<f32>("my_plugin_version")?;

if *version < 1.0 {
    println!("You're badass");
} else {
    println!("Alright!");
}

pub fn flags(&self) -> Result<AmxFlags, AmxError>

Return flags of a compiled AMX.

pub fn get_ref<T>(&self, address: i32) -> Result<Ref<T>, AmxError> where
    T: AmxPrimitive, 

Get a reference (Ref<T>) to a value stored inside an AMX.

Example

use samp_sdk::amx::Amx;

// fn test_native(&self, amx: &Amx, reference: Ref<f32>) -> AmxResult<f32>
fn test_native(&self, amx: &Amx, cell_idx: i32) -> AmxResult<f32> {
    let reference = amx.get_ref::<f32>(cell_idx)?;
    return Ok(*reference)
}

pub fn push<'a, T>(&'a self, value: T) -> Result<(), AmxError> where
    T: AmxCell<'a>, 

Push a value that implements AmxCell to an AMX stack.

pub fn allocator(&self) -> Allocator

Get a heap Allocator for current Amx.

Example

use samp_sdk::amx::Amx;

let allocator = amx.allocator();
let string = allocator.allot_string("Hello!")?;
let player_id = 10;

amx.push(string)?;
amx.push(player_id)?;
amx.exec(AmxExecIdx::UserDef(21))?;

pub fn amx(&self) -> NonNull<AMX>

Returns a pointer to a raw AMX structure.

pub fn header(&self) -> NonNull<AMX_HEADER>

Returns a pointer to an AMX_HEADER.

Trait Implementations

impl Debug for Amx

fn fmt(&self, f: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.

impl AmxExt for Amx

fn ident(&self) -> AmxIdent

Get an identifier of an Amx.