[Man43]

Ok look I've created it like this

PHP код:

forward OneSecTimer(playerid);
public OneSecTimer(playerid)
{
    if(colorchanged[playerid] == COLOR_WHITE) // this is a player variable so u create it like this "new color1[MAX_PLAYERS];"
    {
        SetPlayerColor(playerid, COLOR_BLACK);
        colorchanged[playerid] = COLOR_WHITE;
    }
    else if(colorchanged[playerid] == COLOR_WHITE)
    {
        SetPlayerColor(playerid, COLOR_BLACK);
        colorchanged[playerid] = COLOR_WHITE;
    }
    return 1;
}
//I've added this timer into the command
SetTimerEx("OneSecTimer", 100, true, "i", ID); 


and not work why