Tutorial doesn't work?

// This is a comment
// uncomment the line below if you want to write a filterscript
//#define FILTERSCRIPT

#include <a_samp>
#define TEAM_GROVE 1
#define TEAM_BALLAS 2
#define TEAM_VAGOS 3
#if defined FILTERSCRIPT

enum eZone
{
    Float:zMinX,
    Float:zMinY,
    Float:zMaxX,
    Float:zMaxY,
    zTeam
}
new ZoneInfo[][eZone] = {
    {2337.9004,-1808.8383,2590.2043,-1610.3673,TEAM_GROVE},
    {2084.7,-1808.8383,2337.9004,-1610.3673,TEAM_BALLAS},
    {2590.2043,-1808.8383,2842.3,-1610.3673,TEAM_VAGOS}
};
new ZoneID[sizeof(ZoneInfo)];

public OnFilterScriptInit()
for(new i=0; i < sizeof(ZoneInfo); i++)
{
    ZoneID[i] = GangZoneCreate(ZoneInfo[i][zMinX], ZoneInfo[i][zMinY], ZoneInfo[i][zMaxX], ZoneInfo[i][zMaxY]);
}

public OnFilterScriptExit()
{
	return 1;
}

#else

main()
{
	print("\n----------------------------------");
	print(" Blank Gamemode by your name here");
	print("----------------------------------\n");
}

#endif

public OnGameModeInit()
{
	// Don't use these lines if it's a filterscript
	SetGameModeText("Blank Script");
	AddPlayerClass(0, 1958.3783, 1343.1572, 15.3746, 269.1425, 0, 0, 0, 0, 0, 0);
	return 1;
}

public OnGameModeExit()
{
	return 1;
}

public OnPlayerRequestClass(playerid, classid)
{
	SetPlayerPos(playerid, 1958.3783, 1343.1572, 15.3746);
	SetPlayerCameraPos(playerid, 1958.3783, 1343.1572, 15.3746);
	SetPlayerCameraLookAt(playerid, 1958.3783, 1343.1572, 15.3746);
	return 1;
}

public OnPlayerConnect(playerid)
{
	return 1;
}

public OnPlayerDisconnect(playerid, reason)
{
	return 1;
}

public OnPlayerSpawn(playerid)
for(new i=0; i < sizeof(ZoneInfo); i++);
{
    GangZoneShowForPlayer(playerid, ZoneID[i], GetTeamZoneColor(ZoneInfo[i][zTeam]));
}
stock GetTeamZoneColor(teamid)
{
    switch(teamid)
    {
        case TEAM_GROVE: return 0x00FF0088;
        case TEAM_BALLAS: return 0xFF00FF88;
        case TEAM_VAGOS: return 0xFFFF0088;
    }
    return -1;
}

public OnPlayerDeath(playerid, killerid, reason)
{
	return 1;
}

public OnVehicleSpawn(vehicleid)
{
	return 1;
}

public OnVehicleDeath(vehicleid, killerid)
{
	return 1;
}

public OnPlayerText(playerid, text[])
{
	return 1;
}

public OnPlayerCommandText(playerid, cmdtext[])
{
	if (strcmp("/mycommand", cmdtext, true, 10) == 0)
	{
		// Do something here
		return 1;
	}
	return 0;
}

public OnPlayerEnterVehicle(playerid, vehicleid, ispassenger)
{
	return 1;
}

public OnPlayerExitVehicle(playerid, vehicleid)
{
	return 1;
}

public OnPlayerStateChange(playerid, newstate, oldstate)
{
	return 1;
}

public OnPlayerEnterCheckpoint(playerid)
{
	return 1;
}

public OnPlayerLeaveCheckpoint(playerid)
{
	return 1;
}

public OnPlayerEnterRaceCheckpoint(playerid)
{
	return 1;
}

public OnPlayerLeaveRaceCheckpoint(playerid)
{
	return 1;
}

public OnRconCommand(cmd[])
{
	return 1;
}

public OnPlayerRequestSpawn(playerid)
{
	return 1;
}

public OnObjectMoved(objectid)
{
	return 1;
}

public OnPlayerObjectMoved(playerid, objectid)
{
	return 1;
}

public OnPlayerPickUpPickup(playerid, pickupid)
{
	return 1;
}

public OnVehicleMod(playerid, vehicleid, componentid)
{
	return 1;
}

public OnVehiclePaintjob(playerid, vehicleid, paintjobid)
{
	return 1;
}

public OnVehicleRespray(playerid, vehicleid, color1, color2)
{
	return 1;
}

public OnPlayerSelectedMenuRow(playerid, row)
{
	return 1;
}

public OnPlayerExitedMenu(playerid)
{
	return 1;
}

public OnPlayerInteriorChange(playerid, newinteriorid, oldinteriorid)
{
	return 1;
}

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
	return 1;
}

public OnRconLoginAttempt(ip[], password[], success)
{
	return 1;
}

public OnPlayerUpdate(playerid)
{
	return 1;
}

public OnPlayerStreamIn(playerid, forplayerid)
{
	return 1;
}

public OnPlayerStreamOut(playerid, forplayerid)
{
	return 1;
}

public OnVehicleStreamIn(vehicleid, forplayerid)
{
	return 1;
}

public OnVehicleStreamOut(vehicleid, forplayerid)
{
	return 1;
}

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
	return 1;
}

public OnPlayerClickPlayer(playerid, clickedplayerid, source)
{
	return 1;
}