AntiCheat - Tutorial.

// forum.sa-mp.com/showthread.php?p=1448018
#include <a_samp>

#define COLOR_GREEN 0x33AA33AA
#define COLOR_RED 0xAA3333AA
#define CREMA_ADMIN 0xFFFFD4D4

static
    Armas[MAX_PLAYERS][13],
    Municion[MAX_PLAYERS][13],
    temp_arm[13][2],
    w_nombre[MAX_PLAYER_NAME],
    w_str[128],
    Timer_Armas[MAX_PLAYERS];

public OnPlayerConnect(playerid)
{
    Timer_Armas[playerid] = SetTimerEx("Comprobar_Cheat", 10000, 1, "i", playerid);
    return 1;
}

public OnPlayerDisconnect(playerid)
{
    for(new slot = 0; slot < 13; slot++)
    {
        Armas[playerid][slot] = 0;
        Municion[playerid][slot] = 0;
    }
    KillTimer(Timer_Armas[playerid]);
    return 1;
}

public OnPlayerCommandText(playerid, cmdtext[])
{
    if(!strcmp(cmdtext, "/test", true))
    {
        EntregarArma(playerid, 29, 999);
        EntregarArma(playerid, 30, 999);
        EntregarArma(playerid, 31, 999);
        return 1;
    }
    if(!strcmp(cmdtext, "/armas", true))
    {
        if(IsPlayerAdmin(playerid))
        {
            new tienen = 0;
            for(new i = 0; i < GetMaxPlayers(); i++)
            {
                if(IsPlayerConnected(i))
                {
                    for (new W = 0; W < 13; W++)
                    {
                        GetPlayerWeaponData(playerid, W, temp_arm[W][0], temp_arm[W][1]);
                        if(temp_arm[W][0] != Armas[playerid][W] || temp_arm[W][1] != Municion[playerid][W])
                        {
                            GetPlayerName(playerid, w_nombre, sizeof(w_nombre));
                            format(w_str, sizeof(w_str), "Armas - %s.", w_nombre);
                            SendClientMessage(playerid, CREMA_ADMIN, w_str);
                            GetWeaponName(temp_arm[W][0], w_nombre,sizeof(w_nombre));
                            format(w_str, sizeof(w_str), "%s - Municion: %i. ( cheat )", w_nombre, temp_arm[W][1]);
                            SendClientMessage(playerid, COLOR_RED, w_str);
                            tienen += 1;
                        }
                        if((temp_arm[W][0] == Armas[playerid][W] && temp_arm[W][1] == Municion[playerid][W]) && (Municion[playerid][W] != 0 && Armas[playerid][W] != 0))
                        {
                            GetPlayerName(playerid, w_nombre, sizeof(w_nombre));
                            format(w_str, sizeof(w_str), "Armas - %s.", w_nombre);
                            SendClientMessage(playerid, CREMA_ADMIN, w_str);
                            GetWeaponName(temp_arm[W][0], w_nombre,sizeof(w_nombre));
                            format(w_str, sizeof(w_str), "%s - Municion: %i.", w_nombre, temp_arm[W][1]);
                            SendClientMessage(playerid, COLOR_GREEN, w_str);
                            tienen += 1;
                        }
                    }
                }
            }
            if(tienen == 0)
            {
                SendClientMessage(playerid, CREMA_ADMIN, "* No hay usuarios con armas.");
                return 1;
            }
        }
        return 1;
    }
    return 0;
}

stock EntregarArma(playerid, arma, municion)
{
    new slot = GetWeaponSlot(arma);
    if(Armas[playerid][slot] == arma) Municion[playerid][slot] += municion;
    else if(Armas[playerid][slot] != arma) Municion[playerid][slot] = municion;
    Armas[playerid][slot] = arma;
    GivePlayerWeapon(playerid, arma, municion);
    return 1;
}

forward Comprobar_Cheat(playerid);
public Comprobar_Cheat(playerid)
{
    if(IsPlayerConnected(playerid))
    {
        for (new W = 0; W < 13; W++)
        {
            GetPlayerWeaponData(playerid, W, temp_arm[W][0], temp_arm[W][1]);
            if(temp_arm[W][0] != Armas[playerid][W])
            {
                GetPlayerName(playerid, w_nombre, sizeof(w_nombre));
                format(w_str, sizeof(w_str), "**[AVISO]: - Revisá a %s(%i), posible cheat de armas ( /armas ). - **", w_nombre, playerid);
                for(new i = 0; i < GetMaxPlayers(); i++)
                {
                    if(IsPlayerAdmin(i) && IsPlayerConnected(i))
                    {
                        SendClientMessage(i, COLOR_RED, w_str);
                    }
                }
            }
            if(temp_arm[W][1] != Municion[playerid][W])
            {
                GetPlayerName(playerid, w_nombre, sizeof(w_nombre));
                format(w_str, sizeof(w_str), "**[AVISO]: - Revisá a %s(%i), posible cheat de municion ( /armas ). - **", w_nombre, playerid);
                for(new i = 0; i < GetMaxPlayers(); i++)
                {
                    if(IsPlayerAdmin(i))
                    {
                        SendClientMessage(i, COLOR_RED, w_str);
                    }
                }
            }
        }
    }
    return 1;
}

stock GetWeaponSlot(weaponid)
{
    new slot;
    switch(weaponid)
    {
        case 0,1: slot = 0;
        case 2 .. 9: slot = 1;
        case 10 .. 15: slot = 10;
        case 16 .. 18, 39: slot = 8;
        case 22 .. 24: slot =2;
        case 25 .. 27: slot = 3;
        case 28, 29, 32: slot = 4;
        case 30, 31: slot = 5;
        case 33, 34: slot = 6;
        case 35 .. 38: slot = 7;
        case 40: slot = 12;
        case 41 .. 43: slot = 9;
        case 44 .. 46: slot = 11;
    }
    return slot;
}