ScrollFix() for std.zh v2.0

// Allows drawing tiles to correct position on Link when scrolling
// Sets drawX/drawY either to Link X/Y when not scrolling, or the visual position when scrolling.
// currently only used by Pegasus Boots (which is also setting drawX/drawY to Link's new x/y as he dashes)

const int STD_SCROLLDIR = 100;
const int STD_SCROLL_COUNTER = 101;
const int STD_SCROLL_DRAWX = 102;
const int STD_SCROLL_DRAWY = 103;
void scrollDir(int d){ stdGlobalRAM[STD_SCROLLDIR] = d; }
int scrollDir() { return stdGlobalRAM[STD_SCROLLDIR]; }
void scrollCounter(int v) { stdGlobalRAM[STD_SCROLL_COUNTER] += v; }
int scrollCounter() { return stdGlobalRAM[STD_SCROLL_COUNTER]; }
int scrollDrawX(){ return stdGlobalRAM[STD_SCROLL_DRAWX]; }
void scrollDrawX(int v){ stdGlobalRAM[STD_SCROLL_DRAWX] = v; }
int scrollDrawY(){ return stdGlobalRAM[STD_SCROLL_DRAWY]; }
void scrollDrawY(int v){ stdGlobalRAM[STD_SCROLL_DRAWY] = v; }

void ScrollFixInit() { scrollFix(-1); }

void ScrollFix() //function by Saffith
{
    if(Link->Action==LA_SCROLLING)
    {
        if(scrollDir()==-1)
        {
            if(Link->Y>160)
            {
                scrollDir(DIR_UP);
                scrollCounter(45);
            }
            else if(Link->Y<0)
            {
                scrollDir(DIR_DOWN);
                scrollCounter(45);
            }
            else if(Link->X>240)
            {
                scrollDir(DIR_LEFT);
                scrollCounter(65);
            }
            else
            {
                scrollDir(DIR_RIGHT);
                scrollCounter(65);
            }
        }

        if(scrollDir()==DIR_UP && scrollCounte()r<45 && scrollCounter()>4)
            scrollDrawY(scrollDrawY()+4);
        else if(scrollDir()==DIR_DOWN && scrollCounter()<45 && scrollCounter()>4)
            scrollDrawY(scrollDrawY()-4);
        else if(scrollDir()==DIR_LEFT && scrollCounter()<65 && scrollCounter()>4)
            scrollDrawX(scrollDrawX()+4);
        else if(scrollDir()==DIR_RIGHT && scrollCounter()<65 && scrollCounter()>4)
            scrollDrawX(scrollDrawX()-4);

        scrollCounter(-1);
    }
    else
    {
        scrollDrawX(Link->X);
        scrollDrawY(Link->Y);
        if(scrollDir()!=-1) scrollDir(-1);
    }
}