// ==UserScript==
// @name         DigDig.IO X-Ray
// @namespace    https://tampermonkey.net/
// @version      0.1.0
// @description  Let's you see more in digdig.io
// @author       Zertalious (Zert)
// @match        *://digdig.io/*
// @icon         https://www.google.com/s2/favicons?domain=digdig.io
// @require      https://cdn.jsdelivr.net/gh/Qwokka/WAIL@9ed21abc43045e19f9b3756de109a6e361fb9292/wail.js
// @downloadURL https://update.greasyfork.cloud/scripts/529115/DigDigIO%20X-Ray.user.js
// @updateURL https://update.greasyfork.cloud/scripts/529115/DigDigIO%20X-Ray.meta.js
// ==/UserScript==

// Only works when fow is done client side
// Should or shouldn't work depending on the current live build
// Created on build: 41e6c4662ebb8e04b62e5ac95c03eb1d8f5427d1

const _instantiateStreaming = WebAssembly.instantiateStreaming;

WebAssembly.instantiateStreaming = function () {
    return _instantiateStreaming(new Response());
};

const _instantiate = WebAssembly.instantiate;

WebAssembly.instantiate = function (buffer, imports) {
    const array = new Uint8Array(buffer);

    find(array, [
        OP_END,
        OP_I32_LOAD8_U, -1, -1,
        OP_I32_CONST, 1,
        OP_I32_SUB,
        OP_BR_TABLE
    ], function (i, end) {
        console.log('here!!');
        i++;
        array[i++] = OP_BR;
        array[i++] = 1;
        array[i++] = OP_NOP;
        i++;
        array[i] = OP_NOP;
    });

    find(array, [
        OP_F32_CONST, ...Float32ToArray(2),
        OP_SET_LOCAL, -1
    ], function (start, end) {
        array.set(Float32ToArray(-1), start + 1);
    });

    // changes the shape of the fog to a rectangle
    find(array, [
        OP_F64_CONST, ...Float64ToArray(1.4142135623730951)
    ], function (start, end) {
        array.set(Float64ToArray(1), start + 1);
    });

    return _instantiate(buffer, imports);
};

function find(array, search, callback) {
    main: for (let i = 0; i < array.length; i++) {
        for (let j = 0; j < search.length; j++) {
            if (search[j] !== -1 && array[i + j] !== search[j]) {
                continue main;
            }
        }
        callback(i, i + search.length - 1);
    }
}

function Float32ToArray(x) {
    return new Uint8Array(new Float32Array([x]).buffer);
}

function Float64ToArray(x) {
    return new Uint8Array(new Float64Array([x]).buffer);
}