[Vince]

Use GetTickCount.

pawn Код:

new Ticks[MAX_PLAYERS];

// In your command:
if((GetTickCount() - Ticks[playerid]) < 3000)
{
    SendClientMessage(playerid, COLOR_RED, "Please wait before using this command again");
    return 1;
}
Ticks[playerid] = GetTickCount();

// Your jump code goes here