nick black f37ebba78d Add CELL_BLITTEDMASK to track ncvisual cells
For properly stacking transparent blittings (#1068), we
need tag those cells which both (1) originated in an
ncvisual operation and (2) have some transparency. For
the three affected blitters (halfblock, quadrant, and
sexblitter), call cell_set_blitted().
2021-02-02 00:57:58 -05:00
..
2021-01-03 17:42:28 -05:00