[SA-MP] Milo's engine system

/*
  Hello everyone, this is my verry fist script and im happy to release it to the SA-MP.com
  Please dont remove my name/Credits in this mod as i spent alot of time making it.
  And dont upload it to somewhere else, standarly uploaded to SA-MP.com's Forums
  -All love from Milokavis.
*/
#include <a_samp>

#define FILTERSCRIPT

#if defined FILTERSCRIPT

#define dcmd(%1,%2,%3) if (!strcmp((%3)[1], #%1, true, (%2)) && ((((%3)[(%2) + 1] == '\0') && (dcmd_%1(playerid, ""))) || (((%3)[(%2) + 1] == ' ') && (dcmd_%1(playerid, (%3)[(%2) + 2]))))) return 1

#define COLOR_GREEN 0xFFFF00FF

#define COLOR_RED 0xFFFF00FF

#define COLOR_YELLOW 0xFFFF00FF

new Engine[MAX_VEHICLES];

forward EngineTimer(playerid);

public OnFilterScriptInit()
{
        return 1;
}

public OnFilterScriptExit()
{
        return 1;
}

#endif


public OnPlayerExitVehicle(playerid, vehicleid)
{
        TogglePlayerControllable(playerid,1);
        return 1;
}
public OnPlayerStateChange(playerid, newstate, oldstate)
{
                        if(newstate == PLAYER_STATE_DRIVER)
                        {
                        new vehicleid = GetPlayerVehicleID(playerid);
                        if(Engine[vehicleid] == 0)
                        {
                        TogglePlayerControllable(playerid, 0);
                        SendClientMessage(playerid, COLOR_YELLOW, "To start the engine type {FF0000}/engine or press{FF0000} SHIFT ! ");
                        }
                        else if(Engine[vehicleid] == 1)
                        {
                                                SendClientMessage(playerid, COLOR_YELLOW, "Engine Is Starting...");
                                                GameTextForPlayer(playerid, "~w~Engine Is Starting...",1000,3);
                        }
}
                        return 1;
}
public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
        new vehicleid = GetPlayerVehicleID(playerid);
        if(IsPlayerInAnyVehicle(playerid))
        {
        if(Engine[vehicleid] == 0)
        {
        if(newkeys & KEY_SECONDARY_ATTACK)
        {
        RemovePlayerFromVehicle(playerid);
        TogglePlayerControllable(playerid, 1);
        }
        else if(newkeys & KEY_JUMP)
        {
        SendClientMessage(playerid, COLOR_YELLOW, "Engine Is Starting...");
        GameTextForPlayer(playerid, "~w~Engine Is Starting...",1000,3);
        SetTimerEx("EngineTimer", 2000, 0, "i", playerid);
          }
  }
          }
        return 1;
        }

public OnRconLoginAttempt(ip[], password[], success)
{
        return 1;
}
public OnPlayerCommandText(playerid, cmdtext[])
{
        dcmd(exitveh, 7, cmdtext);
        dcmd(engine, 6, cmdtext);
        return 0;
}

public EngineTimer(playerid)
{
        new rand = random(2);

        if(rand == 0)
        {
        SendClientMessage(playerid, COLOR_YELLOW, "{1AFF00}Engine has Started");
        GameTextForPlayer(playerid, "~w~Engine has Sucsessfully Started",1000,3);
        SendClientMessage(playerid, COLOR_YELLOW, "To start the engine again type {FF0000}/engine");
        new vehicleid = GetPlayerVehicleID(playerid);
        Engine[vehicleid] = 1;
        TogglePlayerControllable(playerid, 1);
        }

        if(rand == 1)
        {
    SendClientMessage(playerid, COLOR_YELLOW, "{FF0000}The Engine Failed to start");
    SendClientMessage(playerid, COLOR_YELLOW, "To attempt to start again type /engine or Press SHIFT");
        }

}

dcmd_engine(playerid, params[])
{
        #pragma unused params
        new vehicleid = GetPlayerVehicleID(playerid);
        if(Engine[vehicleid] == 0)
        {
        SendClientMessage(playerid, COLOR_YELLOW, "Engine Is Starting...");
        GameTextForPlayer(playerid, "~w~Engine Is Starting...",1000,3);
        SetTimerEx("EngineTimer", 2000, 0, "i", playerid);
        }
        else if(Engine[vehicleid] == 1)
        {
        Engine[vehicleid] = 0;
        SendClientMessage(playerid, COLOR_RED, "The Engine has been shut down");
        SendClientMessage(playerid, COLOR_YELLOW, "To enter/exit a vehicle you have to press ''F'' or ''ENTER''");
        SendClientMessage(playerid, COLOR_YELLOW, "To start the engine again type{FF0000}/engine or press{FF0000} SHIFT ");
        GameTextForPlayer(playerid, "~w~...",1000,3);
        TogglePlayerControllable(playerid,0);
        }
        return 1;
}

dcmd_exitveh(playerid, params[])
{
        #pragma unused params
        if(IsPlayerInAnyVehicle(playerid))
        {
        RemovePlayerFromVehicle(playerid);
        TogglePlayerControllable(playerid, 1);
        }
        else
        {
        SendClientMessage(playerid, COLOR_RED, "...");
        }
        return 1;
}