arx-convert/dist/ftl/Face.js

Converts various Arx Fatalis formats to JSON or YAML and back

import { BinaryIO } from '../common/BinaryIO.js';
/** @see https://github.com/arx/ArxLibertatis/blob/1.2.1/src/graphics/data/FTLFormat.h#L105 */
export var ArxFaceType;
(function (ArxFaceType) {
    ArxFaceType[ArxFaceType["Flat"] = 0] = "Flat";
    ArxFaceType[ArxFaceType["Text"] = 1] = "Text";
    ArxFaceType[ArxFaceType["DoubleSided"] = 2] = "DoubleSided";
})(ArxFaceType || (ArxFaceType = {}));
export class Face {
    static readFrom(binary) {
        const faceType = binary.readInt32();
        binary.readUint32Array(3); // rgb - always [0, 0, 0]
        const dataBlock1 = {
            faceType,
            vertexIdx: binary.readUint16Array(3),
            textureIdx: binary.readInt16(),
            u: binary.readFloat32Array(3),
            v: binary.readFloat32Array(3),
        };
        binary.readInt16Array(3); // ou - ignored by Arx
        binary.readInt16Array(3); // ov - ignored by Arx
        const dataBlock2 = {
            transval: binary.readFloat32(),
            norm: binary.readVector3(),
        };
        binary.readVector3Array(3); // normals - ignored by Arx
        binary.readFloat32(); // temp - ignored by Arx
        return {
            ...dataBlock1,
            ...dataBlock2,
        };
    }
    static accumulateFrom(face) {
        const buffer = new ArrayBuffer(Face.sizeOf());
        const binary = new BinaryIO(buffer);
        binary.writeInt32(face.faceType);
        binary.writeUint32Array([0, 0, 0]); // rgb
        binary.writeUint16Array(face.vertexIdx);
        binary.writeInt16(face.textureIdx);
        binary.writeFloat32Array(face.u);
        binary.writeFloat32Array(face.v);
        binary.writeInt16Array([0, 0, 0]); // ou
        binary.writeInt16Array([0, 0, 0]); // ov
        binary.writeFloat32(face.transval ?? 0);
        binary.writeVector3(face.norm);
        binary.writeVector3Array([
            // normals
            { x: 0, y: 0, z: 0 },
            { x: 0, y: 0, z: 0 },
            { x: 0, y: 0, z: 0 },
        ]);
        binary.writeFloat32(0); // temp
        return buffer;
    }
    static sizeOf() {
        return (BinaryIO.sizeOfInt32() +
            BinaryIO.sizeOfUint32Array(3) +
            BinaryIO.sizeOfUint16Array(3) +
            BinaryIO.sizeOfInt16() +
            2 * BinaryIO.sizeOfFloat32Array(3) +
            2 * BinaryIO.sizeOfInt16Array(3) +
            BinaryIO.sizeOfFloat32() +
            BinaryIO.sizeOfVector3() +
            BinaryIO.sizeOfVector3Array(3) +
            BinaryIO.sizeOfFloat32());
    }
}
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