[POMOC] Padanje snijega

Skripta koju koristim:ravnes
Detaljan opis problema:kako da uradim da mi snijeg ne prelazi visinu od 300.00 padanja znali ko evo dacu dole dio moje skripte
Dio skripte:

#include 
#include 
#include 
#include 

new snowobj;
new SnowONOFF;
new Float:sx,Float:sy,Float:sz;

public OnPlayerSpawn(playerid)
{
    SnowONOFF=1;
    snowobj=CreatePlayerObject(playerid,18864, sx, sy, sz, 0.0, 0.0, 0.0, 300.0);
	return 1;
}

public OnPlayerDisconnect(playerid, reason)
{
    if(SnowONOFF==1)
    {
        DestroyPlayerObject(playerid,snowobj);
    }
    return 1;
}

public OnPlayerUpdate(playerid)
{
        if(SnowONOFF==1)
        {
            GetPlayerCameraPos(playerid,sx,sy,sz);
            MovePlayerObject(playerid,snowobj,sx,sy,sz,9999.0);
        }
        if(GetPlayerInterior(playerid) > 0)
		{
	    	DestroyPlayerObject(playerid,snowobj);
		}
		if(GetPlayerVirtualWorld(playerid) > 0)
		{
			DestroyPlayerObject(playerid,snowobj);
		}
        return 1;
}

public OnPlayerInteriorChange(playerid,newinteriorid,oldinteriorid)
{
    if(newinteriorid > 0)
    {
        SnowONOFF=1;
        snowobj=CreatePlayerObject(playerid,18864, sx, sy, sz-5, 0.0, 0.0, 0.0, 300.0);
    }
    else if(newinteriorid == 0)
    {
        SnowONOFF=1;
        snowobj=CreatePlayerObject(playerid,18864, sx, sy, sz-5, 0.0, 0.0, 0.0, 300.0);
    }
    return 1;
}

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