|
|
| (34 intermediate revisions by 3 users not shown) |
| Line 1: |
Line 1: |
| | The underworld refers to all indoor locations; including dungeons, caves, and houses. | | The underworld refers to all indoor locations; including dungeons, caves, and houses. |
| | | | |
| − | ==Important Hex Addresses==
| + | {{box|[[Underworld:Important Hex Addresses|Important Hex Addresses]]}} |
| | | | |
| − | ===Room Headers===
| + | {{box|[[Underworld:Rooms|Rooms]]}} |
| − | *$027502-$027781 - Pointer Table, 2 byte local addresses, indexed by room.
| |
| − | *$027781-$027FEF - Data
| |
| | | | |
| − | <blockquote>
| + | {{toc}} |
| − | Headers are $0E (Decimal: 14) bytes formatted thusly:
| |
| − | *byte 0: aaab bbcd
| |
| − | **the a bits are transformed into 0000 0aaa and stored to $0414 ("BG2" in Hyrule Magic)
| |
| − | **the b bits are transformed into 0000 0bbb and stored to $046C ("Collision" in Hyrule Magic)
| |
| − | **the c bit is unused
| |
| − | **the d bit is stored to $7EC005 (If set, use a lights out routine in the room transition)
| |
| − |
| |
| − | *byte 1: aabb bbbb
| |
| − | **the a bits are unused
| |
| − | **the b bits are transformed into bbbb bb00, thus making them a multiple of 4.
| |
| − | This value is used to load 4 different palettes for the dungeon, and corresponds to, you guessed it, Palette # in Hyrule Magic!
| |
| − | | |
| − | The resulting index is used to load values for $0AB6, $0AAC, $0AAD, and $0AAE
| |
| − |
| |
| − | *byte 2: gets stored to $0AA2 (GFX # in Hyrule Magic)
| |
| − |
| |
| − | *byte 3: value + #$40 gets stored to $0AA3 (Sprite GFX # in Hyrule Magic)
| |
| − |
| |
| − | *byte 4: gets stored to $00AD ("Effect" in Hyrule Magic)
| |
| − |
| |
| − | *byte 5: gets stored to $00AE ("Tag1" in Hyrule Magic)
| |
| − |
| |
| − | *byte 6: gets stored to $00AF ("Tag2" in Hyrule Magic)
| |
| − |
| |
| − | These are the planes to use for bytes 9 through D. This determines which
| |
| − | BG you appear on, and possibly more.
| |
| − |
| |
| − | *byte 7: aabb ccdd
| |
| − | **the a bits are transformed into 0000 00aa and stored to $063F
| |
| − | **the b bits are transformed into 0000 00bb and stored to $063E
| |
| − | **the c bits are transformed into 0000 00cc and stored to $063D
| |
| − | **the d bits are transformed into 0000 00dd and stored to $063C
| |
| − |
| |
| − | Note, the only safe values for a plane seem to be 0,1, or 2. Hyrule Magic
| |
| − | appears to violate this rule by letting you put 3 down, but nothing higher.
| |
| − |
| |
| − | *byte 8: aaaa aabb
| |
| − | **the a bits are unused
| |
| − | **the b bits are transformed into 0000 00bb and stored to $0640
| |
| − |
| |
| − | *byte 9: stored to $7EC000 These are all room numbers that you could possibly exit to.
| |
| − | *byte A: stored to $7EC001
| |
| − | *byte B: stored to $7EC002
| |
| − | *byte C: stored to $7EC003
| |
| − | *byte D: stored to $7EC004
| |
| − | </blockquote>
| |
| − | | |
| − | ===Sprite Data===
| |
| − | *$04D62E-$04D92E - Pointer Table, 2 byte local addresses, indexed by room.
| |
| − | *$04D92E-$04EC9D - Data
| |
| − | <blockquote>
| |
| − | Sprite data is formatted thusly:
| |
| − | *First Byte: Stored to $0FB3. Not sure what the purpose of that is yet.
| |
| − | After the first byte, you will see 3 byte clusters that break down thus:
| |
| − | *First Byte:
| |
| − | **Bits 4,3,2,1,0 - Y coordinate (in pixels from the top, starting at 0) of the sprite divided by 16.
| |
| − | **Bits 6,5 - If these are set, they will be used to generate a subtype, stored to $0E30, X.
| |
| − | **Bit 7 - If set, the sprite is on BG2, if not it's on BG1
| |
| − |
| |
| − | *Second Byte:
| |
| − | **Bits 4,3,2,1,0 - X coordinate (in pixels from the far left, starting at 0) of the sprite divided by 16.
| |
| − | **Bits 7,6,5 - If all these bits are set then this is an Overlord, otherwise it's a normal sprite. If only some of them are set they can be used to generate a subtype, stored at $0E30, X
| |
| − |
| |
| − | *Third Byte: Sprite or Overlord type. If a sprite, this will get loaded into a slot at $0E20, X. If an Overlord, will get loaded to $0B00, X.
| |
| − |
| |
| − | The array is terminated with a byte of $FF.
| |
| − | </blockquote>
| |
| − | | |
| − | ===Object Data===
| |
| − | *$0F8000-$0F83BF - Pointer Table, 3 byte long addresses, indexed by room.
| |
| − | | |
| − | ===Dungeon Secrets Data===
| |
| − | *$00DB69 - $00DDE8 - Pointer Table
| |
| − | | |
| − | ===Push Block Data===
| |
| − | *$0271DE-$027369 - Pointer Table
| |
| − | | |
| − | ===(Inter Room) Torch Data===
| |
| − | *$02736A-$027489 - Pointer Table
| |
| − | | |
| − | ===Chest Contents===
| |
| − | *$00E96E - $00EB65 - Data
| |
| − | | |
| − | ==Rooms==
| |
| − | | |
| − | ===Main Map===
| |
| − | The main underworld map consists of $FF (decimal: 256) rooms.
| |
| − | | |
| − | ===Secondary Map===
| |
The underworld refers to all indoor locations; including dungeons, caves, and houses.
