string saidname = "";
integer active = 1;
integer justhit = 0;
vector pos1;
vector pos2;
vector pos3;
vector pos4;
vector pos5;

default
{
    state_entry()
    {
        llListen(7,"",llGetOwner(),"");
        llListen(7,"",llGetKey(),"");
        llSetTimerEvent(0.2);
    }
    
    collision_start(integer num_detected)
    {
        float zsubt = 1.5;
        vector mypos = llGetPos();
        vector detpos = llDetectedPos(0);
        float zdiff = mypos.z - zsubt - detpos.z;
        vector othervel = llDetectedVel(0);
        float zvel = llFabs(othervel.z);
        if(llDetectedOwner(num_detected - 1) != llGetOwner() && (zdiff < 0 || zvel > 5) && llDetectedVel(0) != <0,0,0> && active)
        {
            llMoveToTarget(pos5 + <0,0,0.1>,0.05);
            justhit = 1;
            llSetTimerEvent(0.5);
        }
    }
    
    listen(integer channel, string name, key id, string msg)
    {
        if(msg == "halter on")
        {
            active = 1;
        }
        if(msg == "halter off")
        {
            active = 0;
        }
        if(msg == "go solid!")
        {
            llMoveToTarget(pos5 + <0,0,6>,0.05);
            justhit = 1;
            llSetTimerEvent(0.5);
        }
    }
    
    sensor(integer num_detected)
    {
        if(num_detected > 0)
        {
            vector back = llRot2Fwd(llDetectedRot(0)) * -1;
            vector up = llRot2Up(llDetectedRot(0));
            float mass = llGetMass();
            llMoveToTarget(llDetectedPos(0) + up*3,0.05);
            llSleep(0.1);
            llMoveToTarget(llDetectedPos(0) + back,0.05);
            llSleep(0.5);
            llStopMoveToTarget();
        }
        else
        {
            llOwnerSay("Avatar not detected nearby.");
        }
    }
    
    timer()
    {
        if(!justhit)
        {
            pos5 = pos4;
            pos4 = pos3;
            pos3 = pos2;
            pos2 = pos1;
            pos1 = llGetPos();
        }
        if(justhit)
        {
            llStopMoveToTarget();
            justhit = 0;
            llSetTimerEvent(0.2);
        }
    }


    link_message(integer sender,integer num, string msg,key id)
    {
        if(num == 0)
        {
            llSensor("",id,AGENT,200000,7000*PI);
        }
    }
}