Link's Hitbox

Code:

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// For Link's hit detection. Don't count them if they are stunned or are guys.
int GuyHit(int tx,int ty,int tz,int txsz,int tysz,int tzsz)
{
        //Calculate hitsize and hitoffsets
        if ( Link.getExtend() >= 3 ) {
                tx += Link.getHXOfs();
                ty += Link.getHYOfs();
                //tz += Link.getLinkHitZOffset();
                txsz += ( Link.getHXSz() + Link.getHXOfs() );
                tysz += ( Link.getHYSz() + Link.getHYOfs() );
                //tzsz += Link.getLinkHitZHeight();
        }
    for(int i=0; i<guys.Count(); i++)
    {
        if(guys.spr(i)->hit(tx,ty,tz,txsz,tysz,tzsz))

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Are the txsz, and tysx parameters something unusual here? By this, I mean what values are they using as inuts? I see some oddness in calls to this, such as GuyHit(LinkX()+*, LinkY+98), LinkZ(), 2, 2, ...)

Is this vastly different from ordinary rect collision, because the '2' values are off to me.

I believe it's just a standard rectangle check (in ZC units, i.e. tiles are 16x16.)

I don't know which line specifically you're referring to, but for example it's common to have calls like

Code:

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GuyHit(x+7, y+7, 2, 2)

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to denote a small hitbox around the center of the sprite.