EarthBound Beginnings/Sprite data: Difference between revisions

Revision as of 19:06, 7 September 2023

This is a sub-page of EarthBound Beginnings.

This controls the sprites in the game.

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:

In this example, 10 20 10 02 is the top-right part of Ninten.

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
Selects the tile index of the sprite gfx (58010 to 5E80F)

@@ Line 22: / Line 22: @@
 In this example, <code>10 20 10 02</code> is the top-right part of Ninten.
 ===Tiles===
-Each tile's sprite data has its location, palette and PPU tile.  The position controls where the sprite is drawn on screen relative to the sprite's position.  For example, changing the location on NPCs causes parts of their sprite to be detached from the rest.
+Each 4 bytes is [[PPU OAM|https://www.nesdev.org/wiki/PPU_OAM]]:
 * Byte 0: X location
 * Byte 1: Y location
 * Byte 2: attributes
-** Bits 0-5: **Unknown**
+** 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
 *:Selects the tile index of the sprite gfx (58010 to 5E80F)