Simple AFK System [0.4]

/* Simple AFK System by DeWilX */

#define FILTERSCRIPT

#include <a_samp>

#define COLOR_YELLOW 0xFFFF00AA
#define COLOR_RED 0xFF0000FF

new gPlayers[MAX_PLAYERS][MAX_PLAYER_NAME+1];
new hp = 9999999;
new Float:phealth;
new IsPlayerAfk[MAX_PLAYERS];

public OnFilterScriptInit()
{
    print("\n--------------------------------------");
    print(" DeWilX's Simple AFK System -- Loaded");
    print("--------------------------------------\n");
    return 1;
}

public OnPlayerConnect(playerid)
{
    IsPlayerAfk[playerid] = 0;
    return 1;
}

public OnPlayerDisconnect(playerid, reason)
{
    IsPlayerAfk[playerid] = 0;
    return 1;
}

public OnPlayerText(playerid, text[])
{
    if(IsPlayerAfk[playerid] == 1)
        {
        SendClientMessage(playerid, COLOR_RED, "ERROR : You can not use chat when you're AFK. Use /back to be back!");
        return 0;
        }
    return 1;
}

public OnPlayerCommandText(playerid, cmdtext[])
{
if (strcmp("/afk", cmdtext, true, 10) == 0)
{
    new string[33];
    if (IsPlayerAfk[playerid] == 0) {
    GetPlayerName(playerid,gPlayers[playerid],MAX_PLAYER_NAME);
    GetPlayerHealth(playerid,phealth);
    SetPlayerHealth(playerid,hp);
    TogglePlayerControllable(playerid, 0);
    format(string,sizeof(string),"<<<[%s] is afk!>>>",gPlayers[playerid]);
    SendClientMessageToAll(COLOR_RED,string);
    IsPlayerAfk[playerid] = 1;
    return true;
    }
    if (IsPlayerAfk[playerid] == 1) {
    SendClientMessage(playerid, COLOR_RED, "ERROR : You are alredy AFK! Use /back to be back!");
    }
    return true;
}
if (strcmp("/back", cmdtext, true, 10) == 0)
{
    new string[33];
    if (IsPlayerAfk[playerid] == 1) {
    TogglePlayerControllable(playerid, 1);
    SetPlayerHealth(playerid,phealth);
    format(string,sizeof(string),"<<<[%s] is back!>>>",gPlayers[playerid]);
    SendClientMessageToAll(COLOR_YELLOW,string);
    IsPlayerAfk[playerid] = 0;
    return true;
    }
    if (IsPlayerAfk[playerid] == 0) {
    SendClientMessage(playerid, COLOR_RED, "ERROR : You arent AFK! Use /afk to be AFK!");
    }
    return true;
}
return 1;
}