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Update Design Doc: `level` tool

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Ashley N. 2023-09-04 21:37:58 +00:00
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Design-Doc%3A-%60level%60-tool.md

@ -38,17 +38,26 @@ health = {
```
## .lvl Format
The .lvl format is output by the `level` tool. It is a binary format ideal for use on a 8-bit or 16-bit game console.
The .lvl format is output by the `level` tool. It is a binary format ideal for use on a 8-bit or 16-bit game console. All coordinates use (0,0) upper left as an origin.
### Header
4 bytes: Magic number, 'LEVL' in ASCII. This is useful to quickly evaluate problems with bundling assets in your build.
* 4 bytes: Magic number, 'LEVL' in ASCII. This is useful to quickly evaluate problems with bundling assets in your build.
### Map Unit Size
1 byte: The unit size for each tile. On Sega Mega Drive this is 8, for 8x8 tile.
* 1 byte: The unit size for each tile. On Sega Mega Drive this is 8, for 8x8 tile.
### Map Tile Size
1 byte: The width _in number of tiles_ of each entry in the level map.
* 1 byte: The width _in number of tiles_ of each entry in the level map.
* 1 byte: The height _in number of tiles_ of each entry in the level map.
1 byte: The height _in number of tiles_ of each entry in the level map.
### Component Data
(TBD !!(
### Entity Data
* 2 bytes: The number of entities.
For (number of entities):
* 1 byte: X position of entity
* 1 byte: Y position of entity
(TBD !!)