[Dovahkiin96]

Now I've did this:
Under OnGameModeInit:

Код:

SetTimer("conto2", 2500, true);

And the forward is this:

Код:

forward conto2();

public conto2()
{
new Float:X, Float:Y, Float:Z;
for(new i=0;i<MAX_PLAYERS;i++)
{
if(IsPlayerInArea(i,-555.0,0106.0,-553.0,0100.0))
{
    GetPlayerPos(i,X, Y, Z);
    CreateExplosion(X, Y, Z-4, 10, 10.0); return SendClientMessage(i,0xFF0000AA, "Nice Jump!");
    }
    }
return 1;
}

stock IsPlayerInArea(playerid, Float:MinX, Float:MinY, Float:MaxX, Float:MaxY)
{
    new Float:X, Float:Y, Float:Z;

    GetPlayerPos(playerid, X, Y, Z);
    if(X >= MinX && X <= MaxX && Y >= MinY && Y <= MaxY) {
        return 1;
    }
    return 0;
}

Don't work...