ReC98/libs/master.lib/draw_trapezoid[data].asm

if MASTERMOD ge 2
; Horizontal pixel mask pattern applied when drawing trapezoids, interpreted
; as a 16-pixel grid tiled across the screen. Pixels are only drawn if the
; corresponding bit in this mask is set. Only used in TH03 in the transition
; effect after the end-of-stage tally.
trapezoid_hmask dw 0ffffh
endif
[Reduction] #496: mem_unassign Which challenges a lot about what we thought to know about Amusement Makers' modifications to master.lib, due to the fact that TH02 contains the modified version of this function, but the original of draw_trapezoid... And I haven't even begun to research how this removal of conditional branches could have a positive effect on the game, especially since it's only called before exiting anyway. 2014-09-08 18:30:15 +00:00			`if MASTERMOD ge 2`
[Reduction] #422: draw_trapezoid Yup. From TH03 on, ZUN uses a different version of master.lib, containing more features than the last official version 0.23 from May 1995. Given the relative insignificance of the features in question, I presume that Amusement Makers must have kept their own, improved fork of master.lib, rather than ZUN having hacked master.lib on his own. Anyway, that doesn't matter. In the end, we still have to reverse-engineer each and every one of these changes, and some of the more complicated functions won't even be reduced before the actual reverse-engineering step of this project. [Binary change] Order of 3 relocations in TH05's OP.EXE. 2014-08-31 16:08:50 +00:00			`; Horizontal pixel mask pattern applied when drawing trapezoids, interpreted`
			`; as a 16-pixel grid tiled across the screen. Pixels are only drawn if the`
			`; corresponding bit in this mask is set. Only used in TH03 in the transition`
			`; effect after the end-of-stage tally.`
			`trapezoid_hmask dw 0ffffh`
			`endif`