This hack allow randomization of the battle theme and default boss song with the help of two tables. By default the max number of song for the battle theme is 8 and 4 for the boss theme. This hack does not add new songs into the game.
Because of customization and bank $C2 being filled with bugfixes, the archive consist of two ASM files, one being the current bank ($C2) implementation and the other one the "external" bank implementation (by default $EE). Choose the implementation that you prefer.
The ASM file should be applied to the ROM with
http://www.romhacking.net/utilities/269/. Refer to the readme for more details.
Battle and boss songs randomizer
--------------------------------
author: madsiur
version: 1.1
date: 2016/04/28
Apply to FF3us 1.0
Files
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randomsongsC2.asm: For implementation in bank $C2
randomsongsEE.asm: For implementation in bank $EE (or the bank of your choice)
Apply with xkas 0.06
Command example: xkas randomsongsEE.asm romname.smc
Space used
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randomsongsC2.asm: 64 bytes in bank $C2
randomsongsEE.asm: 76 bytes in bank $EE (or the bank of your choice)
Bank $C2 and $EE implementations use by default respectively C2/6469 and $EE/AF01
as free space. Change the org offset (line 25) in the ASM file to move the code.
Description
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Randomize the battle theme and default boss song. By default the max
number of song for the battle theme is 8 and 4 for the boss theme.
By default, battleTable and bossTable have their entries nullified
with only the default song as entry. Replace the !noSong in a table
to add a song choice. You can also reduce or expand the tables. If
your table has 50% or more of null values (!nosong) it is more efficient
to reduce it in half (e.g. remove 4 lines for a 8 song table) than
nullifying most of the entries. You'll also need to change the !numSongBattle
and/or !numSongBoss value(s).
What the code does is if he picks a null value it will choose a new
random number and repick from the table. If tables are modified
properly, the repick probability will always be less than 50%,
e.g. 44% maximum for a 16 songs table. The probability of a total
of 3 picks before getting a song is 19% maximum and for 4 picks
or more is 8,5%. So basically there can be relooping and cycles wasted
but I don't consider it significant taking in account it was the easiest
solution code-wise.
To recap, if you want 12 possible songs for the battle theme, add 8
lines to the table and nullifie 4 entries (!noSong). Then you need to
change the !numSongBattle variable to $0F.
If you got any question, you can send me a email at
[email protected].
Final Fantasy III (U) 1.0
Either HEADERED or UNHEADERED
CRC32: A27F1C7A
MD5: E986575B98300F721CE27C180264D890
SHA-1: 4f37e4274ac3b2ea1bedb08aa149d8fc5bb676e7
SHA-256: 0f51b4fca41b7fd509e4b8f9d543151f68efa5e97b08493e4b2a0c06f5d8d5e2
