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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | 25x 1175552x 179368x 996184x 122233x 873951x 161451x 712500x 25x 29x 29x 18358x 18358x 2116x 29x 25x 25x 25x 29x 29x 29x 29x 18296x 18296x 18296x 18296x 18296x 29x 25x 36654x | import { ImageIndexFunction } from "./indexedImage";
export type TileLookup = Record<string, Uint8Array>;
export const tileDataIndexFn: ImageIndexFunction = (_r, g, _b, _a) => {
if (g < 65) {
return 3;
}
if (g < 130) {
return 2;
}
if (g < 205) {
return 1;
}
return 0;
};
export const toTileLookup = (tiles: Uint8Array[]): TileLookup => {
const output: TileLookup = {};
for (const tile of tiles) {
const key = hashTileData(tile);
if (!output[key]) {
output[key] = tile;
}
}
return output;
};
export const mergeTileLookups = (tileLookups: TileLookup[]): TileLookup => {
const output: TileLookup = {};
for (const lookup of tileLookups) {
for (const key in lookup) {
output[key] = lookup[key];
}
}
return output;
};
export const tileArrayToTileData = (tiles: Uint8Array[]): Uint8Array => {
const size = tiles.reduce((memo, tile) => memo + tile.length, 0);
const output = new Uint8Array(size);
let index = 0;
for (const tileData of tiles) {
output.set(tileData, index);
index += tileData.length;
}
return output;
};
export const tilesAndLookupToTilemap = (
tiles: Uint8Array[],
lookup: TileLookup
): number[] => {
const output = new Array(tiles.length).fill(0);
const keys = Object.keys(lookup);
let i = 0;
for (const tileData of tiles) {
const key = hashTileData(tileData);
const value = keys.indexOf(key);
Iif (value === -1) {
throw new Error("Missing Tile" + key);
}
output[i] = value;
i++;
}
return output;
};
export const hashTileData = (tile: Uint8Array): string => {
// Will do for now...
return JSON.stringify(tile);
};
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