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EarthBound Beginnings/Sprite data: Difference between revisions
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MOTHERrocks (talk | contribs) m (fix formatting) |
MOTHERrocks (talk | contribs) (describe pointers) |
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|game=EarthBound Zero | |game=EarthBound Zero | ||
|loc=ROM | |loc=ROM | ||
|numentries= | |numentries=0x289 | ||
|entrylength= | |entrylength=4 (0x4) | ||
|start=2A010 | |start=2A010 | ||
|end=2C00F | |end=2C00F | ||
| Line 10: | Line 10: | ||
}} | }} | ||
This controls the sprites in the game. | This controls the sprites in the game. | ||
== | ==Pointer== | ||
This starts with 0x289 pointers, which each correspond to one sprite: | |||
* Bytes 0-1: Pointer | |||
* Byte 2: PPU offset | |||
*:Each of the sprite's PPU tiles are offset by this amount, plus 0x18000 ($58010 in ROM) | |||
* Byte 3: Attributes | |||
** Bits 0-1: Palette 1 | |||
** Bits 2-3: Palette 2 | |||
*:Multiply these numbers by 4, then add 0x29a2d to get the location of the palette in ROM | |||
** Bit 4: **Unknown** | |||
*:Set for the 4 main party members, and some other sprites | |||
** Bits 5-7: **Unknown** | |||
*:Only used on sprites 0x1df, 0x1e0 and 0x226 | |||
==Sprite== | |||
This example uses the sprite data for Ninten forwards, located at 2ABAC-2ABBB: | This example uses the sprite data for Ninten forwards, located at 2ABAC-2ABBB: | ||
<pre> | <pre> | ||
| Line 25: | Line 38: | ||
* Byte 0: X location | * Byte 0: X location | ||
* Byte 1: Y location | * Byte 1: Y location | ||
* Byte 2: | * Byte 2: Attributes | ||
** Bits 0-1: | ** Bits 0-1: Palette | ||
** Bits 2-4: | ** Bits 2-4: Unused | ||
** Bit 5: | ** Bit 5: Priority (0=in front of background, 1=behind background) | ||
** Bit 6: | ** Bit 6: Mirror X | ||
** Bit 7: | ** Bit 7: Mirror Y | ||
* Byte 3: PPU tile index | * Byte 3: PPU tile index | ||
*: | *:The pointer's PPU offset is added to this value | ||
Revision as of 20:00, 8 September 2023
This is a sub-page of EarthBound Beginnings.
| Ally data | |
| Game | EarthBound Zero |
| Start Address | 2A010 |
| End Address | 2C00F |
| # of Entries | 0x289 |
| Entry Length | 4 (0x4) |
| Total Length | 8192 bytes (0x2000) |
| Back to the ROM map | |
This controls the sprites in the game.
Pointer
This starts with 0x289 pointers, which each correspond to one sprite:
- Bytes 0-1: Pointer
- Byte 2: PPU offset
- Each of the sprite's PPU tiles are offset by this amount, plus 0x18000 ($58010 in ROM)
- Byte 3: Attributes
- Bits 0-1: Palette 1
- Bits 2-3: Palette 2
- Multiply these numbers by 4, then add 0x29a2d to get the location of the palette in ROM
- Bit 4: **Unknown**
- Set for the 4 main party members, and some other sprites
- Bits 5-7: **Unknown**
- Only used on sprites 0x1df, 0x1e0 and 0x226
Sprite
This example uses the sprite data for Ninten forwards, located at 2ABAC-2ABBB:
10 20 10 02 18 20 10 03 10 28 11 10 18 28 11 11
Sprite are made up of 4 PPU tiles, each of which are four bytes in the sprite data, in order:
- Top-right
- Top-left
- Bottom-right
- Bottom-left
In this example, 10 20 10 02 is the top-right part of Ninten.
Tiles
Each 4 bytes is OAM:
- Byte 0: X location
- Byte 1: Y location
- Byte 2: Attributes
- Bits 0-1: Palette
- Bits 2-4: Unused
- Bit 5: Priority (0=in front of background, 1=behind background)
- Bit 6: Mirror X
- Bit 7: Mirror Y
- Byte 3: PPU tile index
- The pointer's PPU offset is added to this value