It's basically the same function copy-pasted 4 times, differing only in
the backdrop image coordinates and some other inconsequential details.
Part of P0189, funded by Arandui and Lmocinemod.
Using the .BB cels as a transition mask between stage tiles and the
boss backdrop, nice. Seen in the entrance animations of TH04's
Orange, Kurumi, and Elly, and TH05's Sara.
Part of P0189, funded by Arandui and Lmocinemod.
Palette hacks not included yet. Yup, that's how all phases can use
hardware color #0 as their background color.
Completes P0147, funded by -Tom- and Ember2528.
Not exclusively used for the boss entrance animations, even though its
data is declared in that general vicinity. It's also used for all bombs
in TH04, and Reimu's and Yuuka's bomb in TH05.
Part of P0147, funded by -Tom- and Ember2528.
Sure, it's still a micro-optimization, but at least it's __fastcall for
once! And doesn't assume ES to have been set to a VRAM segment. So not
*that* optimized 😛
Part of P0147, funded by -Tom- and Ember2528.
nmlgc