how to parse .mot files? about ghost

[york8817612]

class MotFile {
    constructor ({ fileBuffer, fileType }) {
        this._buffer = new ArrayBufferRead(fileBuffer)
        this._header = {}
        this._images = []
        this._header = {
            sprFileName: this._buffer.readBytes(0x100),
            sprDescrption: this._buffer.readBytes(0x100),
            sprImageCount: this._buffer.readInt()
        }
        for (let j = 0; j < this._header.sprImageCount; j++) {
            let data = {}
            data.var1 = this._buffer.readInt()
            data.var2 = this._buffer.readBytes(0x28)
            data.loopSize = this._buffer.readInt()
            data.var3 = []
            for (let k = 0; k < data.loopSize; k++) {
                data.var3.push(this._buffer.readBytes(0x1E))
            }
            this._images.push(data)
        }
    }
}