[zplayer] Some hearts become white from left to right

Steps to recreate:

1. In the editor, File->New
2. Place a 'Fire' enemy on the screen
3. Test the quest
4. Walk into the fire repeatedly
5. Observe the fullmost heart correctly becomes white from right to left, but the other two become white from left to right.

The hurting happens in gamedata::set_life

Commenting out the body of lifemeter in subscr.cpp doesn't have any affect on this bug.

The hearts are drawn by SW_GaugePiece::draw

Here is what overtile8 draws when called with various values of the tile parameter:

Code:

---

80181        upper right corner of widget box
103036        blackness
103376        full heart
103368        half-heart (empty on left side)
103380        empty heart
103388        half-heart (empty on right side)

---

A bit ugly, but making the if(fulltile) at the bottom of SW_GaugePiece::draw_piece look like this fixes it:

Code:

---

        if(fulltile)
                overtile16(dest,tile+offs,dx,dy,cset,0);
        else
        {
                if( mtile + offs == 103368 ) // draw half-hearts that are empty on their right side, not left
                        overtile8(dest, 103388, dx, dy, cset, 0);
                else
                        overtile8(dest, mtile + offs, dx, dy, cset, 0);
        }

---