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TILE_DEFAULT_UNSET,
TILE_COLOR_PALETTE,
TILE_COLOR_PROPS,
TILE_SIZE,
} from "consts";
import {
buildSceneTilesetLookup,
decodeSceneTileRef,
encodeSceneTileRef,
isAutotileDefinitionWithinBounds,
isTileWithinAutotileDefinition,
isSceneAutotileDefinitionValid,
remapSceneAutotileDefinitions,
} from "shared/lib/tiles/sceneTilemapData";
import {
PayloadAction,
CaseReducer,
SliceCaseReducers,
} from "@reduxjs/toolkit";
import { EntitiesState } from "shared/lib/entities/entitiesTypes";
import {
ensureSymbolsUnique,
upsertAssetEntity,
updateEntitySymbol,
} from "shared/lib/entities/entitiesHelpers";
import {
AutotileDefinition,
AutotileType,
CompressedTilesetResourceAsset,
} from "shared/lib/resources/types";
import {
localSceneSelectById,
localTilesetSelectById,
} from "store/features/entities/helpers";
import {
scenesAdapter,
tilesetsAdapter,
} from "store/features/entities/adapters";
import { normalizeGridSize, resizeGrid } from "shared/lib/tiles/grid";
const setTilesetSymbol: CaseReducer<
EntitiesState,
PayloadAction<{ tilesetId: string; symbol: string }>
> = (state, action) => {
updateEntitySymbol(
state,
state.tilesets,
tilesetsAdapter,
action.payload.tilesetId,
action.payload.symbol,
);
};
const loadTileset: CaseReducer<
EntitiesState,
PayloadAction<{
data: CompressedTilesetResourceAsset;
}>
> = (state, action) => {
upsertAssetEntity(
state.tilesets,
tilesetsAdapter,
{
...action.payload.data,
tileCollisions: [],
tileColors: [],
autotiles: [],
},
[
"id",
"symbol",
"width",
"height",
"tileCollisions",
"tileColors",
"autotiles",
],
);
updateTilemapReferencesForTilesets(state, [action.payload.data.id]);
ensureSymbolsUnique(state);
};
interface TilesetResize {
width: number;
height: number;
}
export const updateTilemapReferencesForTilesets = (
state: EntitiesState,
tilesetIds: readonly string[],
) => {
const resizes = new Map<string, TilesetResize>();
for (const tilesetId of tilesetIds) {
const tileset = localTilesetSelectById(state, tilesetId);
Iif (!tileset) {
continue;
}
const detectedWidth = Math.floor(tileset.imageWidth / TILE_SIZE);
const detectedHeight = Math.floor(tileset.imageHeight / TILE_SIZE);
if (
!Number.isFinite(detectedWidth) ||
!Number.isFinite(detectedHeight) ||
detectedWidth <= 0 ||
detectedHeight <= 0
) {
continue;
}
const nextWidth = Math.min(detectedWidth, 255);
const nextHeight = Math.min(detectedHeight, 255);
if (nextWidth === tileset.width && nextHeight === tileset.height) {
continue;
}
const oldWidth = Math.max(0, Math.floor(tileset.width));
const oldHeight = Math.max(0, Math.floor(tileset.height));
const tileColors = resizeGrid(
tileset.tileColors,
oldWidth,
oldHeight,
nextWidth,
nextHeight,
TILE_DEFAULT_UNSET,
);
const tileCollisions = resizeGrid(
tileset.tileCollisions,
oldWidth,
oldHeight,
nextWidth,
nextHeight,
TILE_DEFAULT_UNSET,
);
const autotiles =
oldWidth > 0
? (tileset.autotiles ?? [])
.map((definition) => {
const x = definition.startTile % oldWidth;
const y = Math.floor(definition.startTile / oldWidth);
return isAutotileDefinitionWithinBounds(
{ ...definition, startTile: y * nextWidth + x },
nextWidth,
nextHeight,
)
? { ...definition, startTile: y * nextWidth + x }
: undefined;
})
.filter((value): value is NonNullable<typeof value> => !!value)
: [];
tilesetsAdapter.updateOne(state.tilesets, {
id: tileset.id,
changes: {
width: nextWidth,
height: nextHeight,
tileColors,
tileCollisions,
autotiles,
},
});
resizes.set(tileset.id, { width: nextWidth, height: nextHeight });
}
if (resizes.size === 0) {
return;
}
const sceneUpdates = state.scenes.ids.reduce<
Array<{
id: string;
changes: {
tilemap: NonNullable<(typeof state.scenes.entities)[string]>["tilemap"];
};
}>
>((memo, sceneId) => {
const scene = localSceneSelectById(state, String(sceneId));
const sceneTilemap = scene?.tilemap;
Iif (!scene || !sceneTilemap?.tilesets.some(({ id }) => resizes.has(id))) {
return memo;
}
const oldLookup = buildSceneTilesetLookup(sceneTilemap);
const resizedTilesets = sceneTilemap.tilesets.map((snapshot) => {
const resize = resizes.get(snapshot.id);
return resize ? { ...snapshot, ...resize } : snapshot;
});
const newLookup = buildSceneTilesetLookup({
tilesets: resizedTilesets,
});
const remapRef = (value: number) => {
const ref = decodeSceneTileRef(value, oldLookup);
if (!ref) {
return 0;
}
const newEntry = newLookup.entries[ref.tilesetIndex];
Iif (!newEntry) {
return 0;
}
const resize = resizes.get(ref.tilesetId);
let nextTileIndex = ref.tileIndex;
if (resize) {
const oldEntry = oldLookup.entries[ref.tilesetIndex];
Iif (!oldEntry || oldEntry.width <= 0) {
return 0;
}
const x = ref.tileIndex % oldEntry.width;
const y = Math.floor(ref.tileIndex / oldEntry.width);
if (x >= resize.width || y >= resize.height) {
return 0;
}
nextTileIndex = y * resize.width + x;
}
return encodeSceneTileRef(newEntry.offset, nextTileIndex);
};
const layersWithRemappedTiles = sceneTilemap.layers.map((layer) => ({
...layer,
tiles: layer.tiles.map(remapRef),
}));
const remappedAutotiles = remapSceneAutotileDefinitions(
sceneTilemap.autotiles,
layersWithRemappedTiles,
(startTile, definition) => {
const remappedStartTile = remapRef(startTile);
return isSceneAutotileDefinitionValid(
{ ...definition, startTile: remappedStartTile },
newLookup,
)
? remappedStartTile
: 0;
},
);
memo.push({
id: scene.id,
changes: {
tilemap: {
...sceneTilemap,
tilesets: resizedTilesets,
...(sceneTilemap.autotiles
? { autotiles: remappedAutotiles.autotiles }
: {}),
layers: remappedAutotiles.layers,
},
},
});
return memo;
}, []);
if (sceneUpdates.length > 0) {
scenesAdapter.updateMany(state.scenes, sceneUpdates);
}
};
export const updateAllTilemapReferences = (state: EntitiesState) => {
updateTilemapReferencesForTilesets(
state,
state.tilesets.ids.map((id) => String(id)),
);
};
/**************************************************************************
* Tile Defaults
*/
const paintTilesetColor: CaseReducer<
EntitiesState,
PayloadAction<{
tilesetId: string;
x: number;
y: number;
value: number;
isTileProp: boolean;
clear?: boolean;
}>
> = (state, action) => {
const tileset = localTilesetSelectById(state, action.payload.tilesetId);
Iif (!tileset) {
return;
}
const { x, y, value, isTileProp, clear } = action.payload;
Iif (x < 0 || y < 0 || x >= tileset.width || y >= tileset.height) {
return;
}
const size = tileset.width * tileset.height;
const tileColors =
tileset.tileColors.length === size
? tileset.tileColors
: normalizeGridSize(tileset.tileColors, size, TILE_DEFAULT_UNSET);
const index = y * tileset.width + x;
const current = tileColors[index] ?? TILE_DEFAULT_UNSET;
Iif (clear) {
tileColors[index] = TILE_DEFAULT_UNSET;
} else if (isTileProp) {
const palette =
current === TILE_DEFAULT_UNSET ? 0 : current & TILE_COLOR_PALETTE;
tileColors[index] = palette | (value & TILE_COLOR_PROPS);
} else {
const props =
current === TILE_DEFAULT_UNSET ? 0 : current & TILE_COLOR_PROPS;
tileColors[index] = props | (value & TILE_COLOR_PALETTE);
}
tilesetsAdapter.updateOne(state.tilesets, {
id: tileset.id,
changes: { tileColors },
});
};
const paintTilesetCollision: CaseReducer<
EntitiesState,
PayloadAction<{
tilesetId: string;
x: number;
y: number;
value: number;
mask: number;
clear?: boolean;
}>
> = (state, action) => {
const tileset = localTilesetSelectById(state, action.payload.tilesetId);
Iif (!tileset) {
return;
}
const { x, y, value, mask, clear } = action.payload;
Iif (x < 0 || y < 0 || x >= tileset.width || y >= tileset.height) {
return;
}
const size = tileset.width * tileset.height;
const tileCollisions =
tileset.tileCollisions.length === size
? tileset.tileCollisions
: normalizeGridSize(tileset.tileCollisions, size, TILE_DEFAULT_UNSET);
const index = y * tileset.width + x;
Iif (clear) {
tileCollisions[index] = TILE_DEFAULT_UNSET;
} else {
const current =
tileCollisions[index] === TILE_DEFAULT_UNSET
? 0
: (tileCollisions[index] ?? 0);
tileCollisions[index] = (current & ~mask) | (value & mask);
}
tilesetsAdapter.updateOne(state.tilesets, {
id: tileset.id,
changes: { tileCollisions },
});
};
const toggleTilesetAutotileGroup: CaseReducer<
EntitiesState,
PayloadAction<{
tilesetId: string;
tileIndex: number;
type?: AutotileType;
}>
> = (state, action) => {
const tileset = localTilesetSelectById(state, action.payload.tilesetId);
Iif (!tileset) {
return;
}
const autotiles = tileset.autotiles ?? [];
const type = action.payload.type ?? "2x2";
// Find existing overlapping autotile
const existingDefinition = autotiles.find((definition) =>
isTileWithinAutotileDefinition(
action.payload.tileIndex,
tileset.width,
definition,
),
);
const nextDefinition = { type, startTile: action.payload.tileIndex };
const isValidAutotile = isAutotileDefinitionWithinBounds(
nextDefinition,
tileset.width,
tileset.height,
);
let nextAutotiles: AutotileDefinition[] = autotiles;
if (existingDefinition) {
// Autotile already existed, remove it
nextAutotiles = autotiles.filter(
(definition) => definition !== existingDefinition,
);
} else if (isValidAutotile) {
// Autotile didn't exist but is valid, add it
nextAutotiles = [...autotiles, nextDefinition];
}
if (nextAutotiles !== autotiles) {
tilesetsAdapter.updateOne(state.tilesets, {
id: tileset.id,
changes: { autotiles: nextAutotiles },
});
}
};
const tilesetsReducers = {
loadTileset,
setTilesetSymbol,
paintTilesetColor,
paintTilesetCollision,
toggleTilesetAutotileGroup,
} satisfies SliceCaseReducers<EntitiesState>;
export default tilesetsReducers;
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