// Omei Qunhua

integer PrimNum;
integer LastPrim = 99;
integer TimeStarted;

float       fAlpha          =1.0;
float       fAlphaChange    =0.05;
float       fAlphaSleep     =0.35;

default
{
    touch_start(integer total_number)
    {
        TimeStarted = llGetUnixTime();
        llSetTimerEvent(fAlphaSleep);
    }

    timer()
    {
        integer Elapsed = llGetUnixTime() - TimeStarted;

        // On each 5 second boundary, switch to next prim
        if (Elapsed == 5)           PrimNum = 1;
        if (Elapsed == 10)          PrimNum = 9;
        if (Elapsed == 15)          PrimNum = 10;
        if (Elapsed == 20)          PrimNum = 11;
        if (Elapsed == 25)          PrimNum = 12;
        if (Elapsed == 30)          PrimNum = 13;
        if (Elapsed == 30)          llResetScript();


        if (PrimNum != LastPrim)   // On change of Prim Number, reset Alpha
        {
            fAlpha = 1.0;
            LastPrim = PrimNum;
        }
        if (fAlpha < fAlphaChange)    return;       // Don't decrement Alpha below zero, wait for prim Change
        fAlpha -= fAlphaChange;
        llSetLinkAlpha  ( PrimNum,fAlpha,ALL_SIDES);
    }
}