Item Count/Completion Roadblock

//import "std.zh"     //uncomment if not called elsewhere
//import "classic.zh" //uncomment if not called elsewhere

//Transforms a combo at its location to another combo if Link has the required items
//Place directly over the combo to change
//Enable the ffc flag: Run on screen init
//D0 is the combo to morph your roadblock into
//Fill in the array with item IDs to collect.

ffc script roadblock100percent
{
    void run(int new_combo)
    {
        this->Data = CMB_INVISIBLE
        int itemslist[]=
        {

            I_SWORD1, I_SWORD2, I_SWORD3

        };
        int sz = SizeOfArray(itemslist); //Slightly faster than calling SizeofArray every frame
        bool waiting = true;
        do
        {
            for ( int q = sz; q >= 0; --q )
            {
                if(Link->Item[ itemslist[q] ] )
                {
                    waiting = false;
                }
            }
            Waitframe();
        } while(waiting);

        //If we reaxh here, then Link has all of the items
        Game->PlaySound(SFX_SECRET);
        Screen->ComboD[ComboAt(this->X+8, this->Y+8)] = new_combo;
    }
}

//Bonus content: Specify a completion percent as D1
ffc script roadblockSPECIFYpercent
{
    void run(int new_combo, int perc_required)
    {
        this->Data = CMB_INVISIBLE
        int itemslist[]=
        {

            I_SWORD1, I_SWORD2, I_SWORD3

        };
        int sz = SizeOfArray(itemslist)
        bool waiting = true;
        int count; int actual_perc;
        do
        {
            for ( int q = sz; q >= 0; --q )
            {
                if(Link->Item[ itemslist[q] ] )
                {
                    ++count
                }
            }
            actual_perc = ( 100 / sz ) * count;
            Waitframe();
        } while(actual_perc < perc_required);
        Game->PlaySound(SFX_SECRET);
        Screen->ComboD[ComboAt(this->X+8, this->Y+8)] = new_combo;
    }
}