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parse hash

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This commit is contained in:
ferricles 2022-12-20 11:46:40 -08:00
parent 7b295e4e46
commit 420e66842d
2 changed files with 214 additions and 9 deletions
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189
js/builder/build_encode_decode.js
View file

@ -4,6 +4,195 @@ let build_powders;
function getItemNameFromID(id) { return idMap.get(id); }
function getTomeNameFromID(id) { return tomeIDMap.get(id); }
/*
* Populate fields based on url, and calculate build.
* TODO: THIS CODE IS GOD AWFUL result of being lazy
* fix all the slice() and break into functions or do something about it... its inefficient, ugly and error prone
*/
async function parse_hash(url_tag) {
const default_load_promises = [ load_atree_data(wynn_version_names[WYNN_VERSION_LATEST]),
load_init(), load_ing_init(), load_tome_init() ];
if (!url_tag) {
await Promise.all(default_load_promises);
return;
}
//default values
let equipment = [null, null, null, null, null, null, null, null, null];
let tomes = [null, null, null, null, null, null, null];
let powdering = ["", "", "", "", ""];
let info = url_tag.split("_");
let version = info[0];
let save_skp = false;
let skillpoints = [0, 0, 0, 0, 0];
let level = 106;
let version_number = parseInt(version);
let data_str = info[1];
if (version_number >= 8) {
// parse query parameters
// https://stackoverflow.com/questions/901115/how-can-i-get-query-string-values-in-javascript
const url_params = new URLSearchParams(window.location.search);
const version_id = url_params.get('v');
wynn_version_id = parseInt(version_id);
if (isNaN(wynn_version_id) || wynn_version_id > WYNN_VERSION_LATEST || wynn_version_id < 0) {
// TODO: maybe make the NAN try to use the human readable version?
// NOTE: Failing silently... do we want to raise a loud error?
console.log("Explicit version not found or invalid, using latest version");
wynn_version_id = WYNN_VERSION_LATEST;
}
else {
console.log(`Build link for wynn version ${wynn_version_id} (${wynn_version_names[wynn_version_id]})`);
}
}
else {
// Change the default to oldest. (A time before v8)
wynn_version_id = 0;
}
// the deal with this is because old versions should default to 0 (oldest wynn item version), and v8+ defaults to latest.
// its ugly... but i think this is the behavior we want...
if (wynn_version_id != WYNN_VERSION_LATEST) {
// force reload item database and such.
// TODO MUST: display a warning showing older version!
const msg = 'This build was created in an older version of wynncraft '
+ `(${wynn_version_names[wynn_version_id]} < ${wynn_version_names[WYNN_VERSION_LATEST]}). `
+ 'Would you like to update to the latest version? Updating may break the build and ability tree.';
if (confirm(msg)) {
wynn_version_id = WYNN_VERSION_LATEST;
}
else {
version_name = wynn_version_names[wynn_version_id];
const load_promises = [ load_atree_data(version_name),
load_old_version(version_name),
load_ings_old_version(version_name),
load_tome_old_version(version_name) ];
console.log("Loading old version data...", version_name)
await Promise.all(load_promises);
}
}
if (wynn_version_id == WYNN_VERSION_LATEST) {
await Promise.all(default_load_promises);
}
//equipment (items)
// TODO: use filters
if (version_number < 4) {
let equipments = info[1];
for (let i = 0; i < 9; ++i ) {
let equipment_str = equipments.slice(i*3,i*3+3);
equipment[i] = getItemNameFromID(Base64.toInt(equipment_str));
}
data_str = equipments.slice(27);
}
else if (version_number == 4) {
let info_str = data_str;
let start_idx = 0;
for (let i = 0; i < 9; ++i ) {
if (info_str.charAt(start_idx) === "-") {
equipment[i] = "CR-"+info_str.slice(start_idx+1, start_idx+18);
start_idx += 18;
}
else {
let equipment_str = info_str.slice(start_idx, start_idx+3);
equipment[i] = getItemNameFromID(Base64.toInt(equipment_str));
start_idx += 3;
}
}
data_str = info_str.slice(start_idx);
}
else if (version_number <= 8) {
let info_str = data_str;
let start_idx = 0;
for (let i = 0; i < 9; ++i ) {
if (info_str.slice(start_idx,start_idx+3) === "CR-") {
equipment[i] = info_str.slice(start_idx, start_idx+20);
start_idx += 20;
} else if (info_str.slice(start_idx+3,start_idx+6) === "CI-") {
let len = Base64.toInt(info_str.slice(start_idx,start_idx+3));
equipment[i] = info_str.slice(start_idx+3,start_idx+3+len);
start_idx += (3+len);
} else {
let equipment_str = info_str.slice(start_idx, start_idx+3);
equipment[i] = getItemNameFromID(Base64.toInt(equipment_str));
start_idx += 3;
}
}
data_str = info_str.slice(start_idx);
}
//constant in all versions
for (let i in equipment) {
setValue(equipment_inputs[i], equipment[i]);
}
//level, skill point assignments, and powdering
if (version_number == 1) {
let powder_info = data_str;
let res = parsePowdering(powder_info);
powdering = res[0];
} else if (version_number == 2) {
save_skp = true;
let skillpoint_info = data_str.slice(0, 10);
for (let i = 0; i < 5; ++i ) {
skillpoints[i] = Base64.toIntSigned(skillpoint_info.slice(i*2,i*2+2));
}
let powder_info = data_str.slice(10);
let res = parsePowdering(powder_info);
powdering = res[0];
} else if (version_number <= 8){
level = Base64.toInt(data_str.slice(10,12));
setValue("level-choice",level);
save_skp = true;
let skillpoint_info = data_str.slice(0, 10);
for (let i = 0; i < 5; ++i ) {
skillpoints[i] = Base64.toIntSigned(skillpoint_info.slice(i*2,i*2+2));
}
let powder_info = data_str.slice(12);
let res = parsePowdering(powder_info);
powdering = res[0];
data_str = res[1];
}
// Tomes.
if (version_number >= 6) {
//tome values do not appear in anything before v6.
if (version_number < 8) {
for (let i in tomes) {
let tome_str = data_str.charAt(i);
let tome_name = getTomeNameFromID(Base64.toInt(tome_str));
setValue(tomeInputs[i], tome_name);
}
data_str = data_str.slice(7);
}
else {
// 2chr tome encoding to allow for more tomes.
for (let i in tomes) {
let tome_str = data_str.slice(2*i, 2*i+2);
let tome_name = getTomeNameFromID(Base64.toInt(tome_str));
setValue(tomeInputs[i], tome_name);
}
data_str = data_str.slice(14);
}
}
if (version_number >= 7) {
// ugly af. only works since its the last thing. will be fixed with binary decode
atree_data = new BitVector(data_str);
}
else {
atree_data = null;
}
for (let i in powder_inputs) {
setValue(powder_inputs[i], powdering[i]);
}
for (let i in skillpoints) {
setValue(skp_order[i] + "-skp", skillpoints[i]);
}
}
function parsePowdering(powder_info) {
// TODO: Make this run in linear instead of quadratic time... ew
let powdering = [];

34
js/utils.js
View file

@ -172,7 +172,13 @@ Base64 = (function () {
}
}
} else if (typeof data === "number") {
if (typeof length === "undefined")
if (typeof length === "undefined") {
if (data == 0) {
length = 0;
} else {
length = Math.ceil(Math.log(data) / Math.log(2));
}
}
if (length < 0) {
throw new RangeError("BitVector must have nonnegative length.");
}
@ -333,13 +339,9 @@ Base64 = (function () {
let new_length = this.length + length;
if (this.bits.length * this.bits.BYTES_PER_ELEMENT * 8 < new_length) {
//resize the internal repr by a factor of 2 before recursive calling
let bit_vec = [];
for (const int of this.bits) {
bit_vec.push(int);
}
//effectively double size - TODO 1-line this
for (const int of this.bits) {
bit_vec.push(0);
let bit_vec = Array(2 * this.bits.length).fill(0);
for (let i = 0; i < this.bits.length; i++) {
bit_vec[i] = this.bits[i];
}
this.bits = new Uint32Array(bit_vec);
@ -403,6 +405,18 @@ Base64 = (function () {
}
};
function test_bv() {
//empty array
let bv = new BitVector(0);
bv.append(10, 4);
console.log(bv);
bv = new BitVector(0);
bv.append(10, 5);
console.log(bv);
}
/*
Turns a raw stat and a % stat into a final stat on the basis that - raw and >= 100% becomes 0 and + raw and <=-100% becomes negative.
@ -1039,4 +1053,6 @@ if (screen.width < 992) {
}
scrollPos = document.documentElement.scrollTop;
});
}
}
test_bv();