arx-convert/dist/fts/FtsHeader.js

Converts various Arx Fatalis formats to JSON or YAML and back

import { BinaryIO } from '../common/BinaryIO.js';
import { repeat } from '../common/helpers.js';
import { VERSION } from './constants.js';
export class FtsHeader {
    static readFrom(binary) {
        const path = binary.readString(256);
        const data = {
            levelIdx: FtsHeader.pathToLevelIdx(path),
            numberOfUniqueHeaders: binary.readInt32(),
        };
        binary.readFloat32(); // version - always 0.14100000262260437
        binary.readInt32(); // uncompressed size in bytes
        binary.readUint32Array(3); // pad - ?
        return data;
    }
    static accumulateFrom(json, uncompressedSize) {
        const buffer = new ArrayBuffer(FtsHeader.sizeOf());
        const binary = new BinaryIO(buffer);
        binary.writeString(FtsHeader.levelIdxToPath(json.header.levelIdx), 256);
        binary.writeInt32(json.uniqueHeaders.length);
        binary.writeFloat32(VERSION);
        binary.writeInt32(uncompressedSize);
        binary.writeUint32Array(repeat(0, 3)); // pad
        return buffer;
    }
    static pathToLevelIdx(path) {
        return Number.parseInt(path.toLowerCase().replace('c:\\arx\\game\\graph\\levels\\level', '').replace('\\', ''), 10);
    }
    static levelIdxToPath(levelIdx) {
        return `C:\\ARX\\Game\\Graph\\Levels\\level${levelIdx}\\`;
    }
    static sizeOf() {
        return (BinaryIO.sizeOfString(256) +
            BinaryIO.sizeOfInt32() +
            BinaryIO.sizeOfFloat32() +
            BinaryIO.sizeOfInt32() +
            BinaryIO.sizeOfUint32Array(3));
    }
}
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