Script Palla fisica e temporanea metti in piano inclinato

integer life;
default
{
    state_entry()
    {

       llListen(100,"",NULL_KEY,"");
    }
    on_rez(integer param){
        llOwnerSay("Listening to channel "+(string)param);
         llListen(param,"",NULL_KEY,""); // 100 is our channel
         life=llGetUnixTime();
    }
    listen(integer channel,string name,key id,string command)
    {
        list l_cmds=llParseStringKeepNulls(command," ",[]);
        string s_command=llToUpper(llList2String(l_cmds,0));
        string s_arg=llList2String(l_cmds,1);
        float f_arg=(float)s_arg;
       // if(s_command=="DIE") llDie();
        if(s_command=="SIZE"){
            llSetScale(<f_arg,f_arg,f_arg>);
        }

        llSay(0,"My mass is "+(string)llGetMass());

    }
    collision(integer num)
    {
        integer i;
        for(i=0;i<num;i++)
        if(llDetectedName(i)=="piano sotto")
        {
            llSay(0, "Life: "+ (string)(llGetUnixTime() - life));
            llDie();
        }
    }
}