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reskit
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Generation of palette/nametables simplified and refactored for palettes

stinkhead7ds
Ashley N. 2023-09-13 22:36:56 -04:00
parent ff08ee4e46
commit 5d8f7294ef
1 changed files with 56 additions and 49 deletions
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105
src/reskit/level/system.rs
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@ -1,27 +1,44 @@
use std::{error::Error, convert::TryInto};
use image::GenericImageView;
use crate::reskit::tileset::image_to_tiles;
use super::converter::{TiledTilemap, Layer, SystemPlane};
/**
* Output the .bin file (using `tileset` tool to build it) containing each of the tiles
* in the Tiled Editor tileset.
* Output the .bin and .pal file (using `tileset` tool to build it) containing each of the tiles
* and palettes in the Tiled Editor tileset.
*/
pub fn get_tiles( tilemap: &TiledTilemap ) -> Result<Vec<u8>, Box<dyn Error>> {
let mut palette: [u16; 16] = [ 0; 16 ];
pub fn get_tiles( tilemap: &TiledTilemap ) -> Result<(Vec<u8>, Vec<u8>), Box<dyn Error>> {
let mut system_pals: [[u16; 16]; 4] = [
[ 0; 16 ],
[ 0; 16 ],
[ 0; 16 ],
[ 0; 16 ]
];
let mut all_tiles: Vec<u8> = Vec::new();
for tile_y in 0..tilemap.height {
for tile_x in 0..tilemap.width {
let tile = tilemap.tileset.image.clone().crop(
tile_x as u32,
tile_y as u32,
8, // --system md
8 // --system md
);
let tiles_height = tilemap.tileset.image.height() / 8; // --system md
let tiles_width = tilemap.tileset.image.width() / 8; // --system md
for tile_y in 0..tiles_height {
for tile_x in 0..tiles_width {
let tile = tilemap.tileset.image.clone().crop( tile_x * 8, tile_y * 8, 8, 8 );
// Fake palette (see below)
let mut fake: [u16; 16] = [ 0; 16 ];
let tile_bin = image_to_tiles(
&tile,
&mut palette,
{
// Determine if palette is used here or it is a dummy palette
let selected_pal = tilemap.tileset.palettes[ ( ( tile_y * tiles_width ) + tile_x ) as usize ];
if let Some( selected_pal ) = selected_pal {
&mut system_pals[ selected_pal as usize ]
} else {
// Fake-a-palette
// You will get an error in get_tilemap if you try to use this palette-less tile
&mut fake
}
},
"tile"
);
@ -29,19 +46,18 @@ pub fn get_tiles( tilemap: &TiledTilemap ) -> Result<Vec<u8>, Box<dyn Error>> {
}
}
// Define result and write palette to top of result
let mut result: Vec<u8> = Vec::new();
for i in 0..palette.len() {
let bytes = palette[ i ].to_be_bytes();
for i in 0..2 {
result.push( bytes[ i ] );
}
}
// Define result and write palettes
let mut palettes: Vec<u8> = Vec::new();
for pal in 0..system_pals.len() {
for i in 0..system_pals[ pal ].len() {
let bytes = system_pals[ pal ][ i ].to_be_bytes();
for i in 0..2 {
palettes.push( bytes[ i ] );
}
}
}
// Extend all tiles onto result
result.extend( all_tiles );
Ok( result )
Ok( ( all_tiles, palettes ) )
}
/**
@ -52,11 +68,8 @@ pub fn get_tilemap( tilemap: &TiledTilemap ) -> Result<Vec<u8>, Box<dyn Error>>
let layer_b: Option<&Layer> = tilemap.layers.iter().find( | layer | matches!( layer, Layer::Tile { system_plane: SystemPlane::MdPlaneB, tiles: _ } ) );
let layer_a: Option<&Layer> = tilemap.layers.iter().find( | layer | matches!( layer, Layer::Tile { system_plane: SystemPlane::MdPlaneA, tiles: _ } ) );
let md_height_per_tile = 1; // --system md
let md_width_per_tile = 1; // --system md
// Each entry in a `--system md` tilemap is 16 bits
let mut nametable: Vec<u16> = vec![ 0; ( tilemap.width * md_width_per_tile ) * ( tilemap.height * md_height_per_tile ) ];
let mut nametable: Vec<u16> = vec![ 0; tilemap.width * tilemap.height ];
if let Some( layer_b ) = layer_b {
let layer_b = match layer_b {
@ -69,18 +82,15 @@ pub fn get_tilemap( tilemap: &TiledTilemap ) -> Result<Vec<u8>, Box<dyn Error>>
let target_tile: u32 = *layer_b.get( ( y * tilemap.width ) + x ).ok_or( "internal error: invalid data in tilemap" )?;
let target_tile: u16 = target_tile.try_into()?;
if target_tile > 0 {
let wide_tile_size = md_height_per_tile as u16 * md_width_per_tile as u16;
let source_tile = ( target_tile - 1 ) * wide_tile_size;
let x = x * md_width_per_tile;
let y = y * md_height_per_tile;
let source_tile = target_tile - 1;
// From the starting point of x, y "stamp" the target tile's indices
let mut revolving_counter = 0;
for y_stamp in y..( y + md_height_per_tile ) {
for x_stamp in x..( x + md_width_per_tile ) {
nametable[ ( y_stamp * ( tilemap.width * md_width_per_tile ) ) + x_stamp ] = source_tile + revolving_counter;
revolving_counter = ( revolving_counter + 1 ) % wide_tile_size;
}
let nametable_entry = source_tile;
let selected_pal = tilemap.tileset.palettes[ source_tile as usize ];
if let Some( selected_pal ) = selected_pal {
nametable[ ( y * tilemap.width ) + x ] = ( ( selected_pal as u16 ) << 13 ) | nametable_entry;
} else {
return Err( format!( "invalid setting: tile {} in tileset has no defined palette", source_tile ) )?
}
}
}
@ -100,18 +110,15 @@ pub fn get_tilemap( tilemap: &TiledTilemap ) -> Result<Vec<u8>, Box<dyn Error>>
let target_tile: u32 = *layer_a.get( ( y * tilemap.width ) + x ).ok_or( "internal error: invalid data in tilemap" )?;
let target_tile: u16 = target_tile.try_into()?;
if target_tile > 0 {
let wide_tile_size = md_height_per_tile as u16 * md_width_per_tile as u16;
let source_tile = ( target_tile - 1 ) * wide_tile_size;
let x = x * md_width_per_tile;
let y = y * md_height_per_tile;
let source_tile = target_tile - 1;
// From the starting point of x, y "stamp" the target tile's indices
let mut revolving_counter = 0;
for y_stamp in y..( y + md_height_per_tile ) {
for x_stamp in x..( x + md_width_per_tile ) {
nametable[ ( y_stamp * ( tilemap.width * md_width_per_tile ) ) + x_stamp ] = source_tile + revolving_counter;
revolving_counter = ( revolving_counter + 1 ) % wide_tile_size;
}
let nametable_entry = source_tile;
let selected_pal = tilemap.tileset.palettes[ source_tile as usize ];
if let Some( selected_pal ) = selected_pal {
nametable[ ( y * tilemap.width ) + x ] = ( ( selected_pal as u16 ) << 13 ) | nametable_entry;
} else {
return Err( format!( "invalid setting: tile {} in tileset has no defined palette", source_tile ) )?
}
}
}