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osu.js
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const axios = require('axios');
const ojsama = require('ojsama');
const rosu = require("rosu-pp-js");
const bparser = require("bparser-js");
const osuBeatmapParser = require('osu-parser');
const path = require('path');
const util = require('util');
const fs = require('fs').promises;
const { DateTime, Duration } = require('luxon');
const { createCanvas } = require('canvas');
const ur_calc = require('./renderer/ur.js');
const frame = require('./renderer/render_frame.js');
const helper = require('./helper.js');
const { ChartJSNodeCanvas } = require('chartjs-node-canvas');
const graphCanvas = new ChartJSNodeCanvas({ width: 600, height: 400 });
const Jimp = require('jimp');
const getFrame = util.promisify(frame.get_frame);
const MINUTE = 60 * 1000;
const STRAIN_STEP = 400.0;
const DECAY_BASE = [ 0.3, 0.15 ];
const STAR_SCALING_FACTOR = 0.0675;
const EXTREME_SCALING_FACTOR = 0.5;
const config = require('./config.json');
const { mod } = require('mathjs');
let tracked_users = {};
let retries = 0;
if(helper.getItem('tracked_users')){
tracked_users = JSON.parse(helper.getItem('tracked_users'));
}else{
helper.setItem('tracked_users', JSON.stringify(tracked_users));
}
let top_plays = {};
if(helper.getItem('top_plays')){
top_plays = JSON.parse(helper.getItem('top_plays'));
}else{
helper.setItem('top_plays', JSON.stringify(top_plays));
}
let discord_client, last_beatmap;
const DIFF_MODS = ["HR","EZ","DT","HT","FL","HD","TD"];
const TIME_MODS = ["DT", "HT"];
const CHART_OPTIONS = {
fontColor: '#FFFFFFCC',
legend: {
display: false
},
layout: {
padding: {
top: 0,
bottom: 20,
left: 20,
right: 20
}
},
elements: {
line: {
borderColor: '#F06292',
fill: false
}
},
title: {
display: true,
fontColor: '#ECEFF1DD',
fontSize: 14,
fontStyle: 'bold',
padding: 20
},
scales: {
yAxes: [{
gridLines: {
display: true,
color: '#607D8BAA',
drawBorder: false,
zeroLineColor: '#607D8BAA',
drawTicks: false
},
ticks: {
fontColor: '#FFFFFFAA',
fontStyle: 'bold',
padding: 10
}
}],
xAxes: [{
gridLines: {
display: false
},
ticks: {
fontColor: '#FFFFFFAA',
fontStyle: 'bold',
maxTicksLimit: 12,
maxRotation: 0,
padding: 10
},
type: 'time',
time: {
unit: 'second',
displayFormats: { second: 'm:ss' }
}
}]
}
};
const CHART_THEME = {
chart: {
backgroundColor: 'rgba(38, 50, 56, 0.9)',
spacingBottom: 20,
spacingTop: 20,
marginTop: 100,
spacingLeft: 0,
spacingRight: 30
},
yAxis: {
gridLineColor:"#455A64",
tickPixelInterval: 45,
labels: {
style: {
color: '#B0BEC5'
},
},
title: {
style: {
color: '#F48FB1'
}
}
},
xAxis: {
tickPixelInterval: 60,
gridLineColor:"#455A64",
lineColor:"#607D8B",
tickColor:'#607D8B',
labels: {
align: 'center',
reserveSpace: true,
style: {
color: '#B0BEC5',
textOverflow: 'none'
}
}
},
plotOptions: {
series: {
lineWidth: 3,
name: false
}
},
colors: ['#F06292', '#4DD0E1'],
title: {
style: {
color: '#ECEFF1',
fontSize: 16
}
},
subtitle: {
style: {
color: '#CFD8DC',
fontSize: 12
}
},
legend: {
itemStyle: {
color: '#CFD8DC'
}
},
credits: false
};
const mods_enum = {
'' : 0,
'NF' : 1,
'EZ' : 2,
'TD' : 4,
'HD' : 8,
'HR' : 16,
'SD' : 32,
'DT' : 64,
'RX' : 128,
'HT' : 256,
'NC' : 512,
'FL' : 1024,
'AT' : 2048,
'SO' : 4096,
'AP' : 8192,
'PF' : 16384,
'4K' : 32768,
'5K' : 65536,
'6K' : 131072,
'7K' : 262144,
'8K' : 524288,
'FI' : 1048576,
'RD' : 2097152,
'LM' : 4194304,
'9K' : 16777216,
'10K' : 33554432,
'1K' : 67108864,
'3K' : 134217728,
'2K' : 268435456,
'V2' : 536870912,
};
const ar_ms_step1 = 120;
const ar_ms_step2 = 150;
const ar0_ms = 1800;
const ar5_ms = 1200;
const ar10_ms = 450;
const od_ms_step = 6;
const od0_ms = 79.5;
const od10_ms = 19.5;
let api, access_token;
var settings = {
api_key: ""
};
// https://github.com/Francesco149/ojsama/blob/603578e7db3f5cc0325a4fcb73f1050aca20086e/ojsama.js#L1433
function hitsFromAcc(acc, nobjects, nmiss = 0) {
let n300=0, n100=0, n50=0
const max300 = nobjects - nmiss
n100 = Math.round(
-3.0 * ((acc * 0.01 - 1.0) * nobjects + nmiss) * 0.5
)
if (n100 > max300) {
// acc lower than all 100s, use 50s
n100 = 0;
n50 = Math.round(
-6.0 * ((acc * 0.01 - 1.0) * nobjects + nmiss) * 0.5
);
n50 = Math.min(max300, n50);
}
n300 = nobjects - n100 - n50 - nmiss;
return {
count300: n300,
count100: n100,
count50: n50,
countmiss: nmiss
}
}
function accuracy(count300, count100, count50, countmiss){
return (Number(count300) * 300 + Number(count100) * 100 + Number(count50) * 50)
/ (Number(count300) * 300 + Number(count100) * 300 + Number(count50) * 300 + Number(countmiss) * 300);
}
function compare(a,b){
if(parseFloat(a.pp) > parseFloat(b.pp)) return -1;
if(parseFloat(a.pp) < parseFloat(b.pp)) return 1;
return 0;
}
function numberWithCommas(x){
return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}
function getMods(enabled_mods){
var return_array = [];
for(var mod in mods_enum){
if((mods_enum[mod] & enabled_mods) != 0)
return_array.push(mod);
}
return return_array;
}
function sanitizeMods(mods_raw){
let speed_change;
let mods = mods_raw.map(m => m.acronym);
let return_array = mods;
if (mods.includes("DT") || mods.includes("HT") || mods.includes("NC") || mods.includes("DC")) {
speed_change = mods_raw.filter(mod => mod.acronym == "DT" || mod.acronym == "HT" || mod.acronym == "NC" || mod.acronym == "DC")[0].settings?.speed_change ?? undefined;
}
if(mods.includes("NC") && mods.includes("DT"))
return_array.splice(mods.indexOf("DT"), 1);
if(mods.includes("PF") && mods.includes("SD"))
return_array.splice(mods.indexOf("SD"), 1);
if (speed_change) {
return_array.forEach((mod, index) => {
if (mod == "DT" || mod == "HT" || mod == "NC" || mod == "DC")
mods[index] += `(${speed_change}x)`
})
}
return return_array;
}
function getModsEnum(mods){
let return_value = 0;
mods.forEach(mod => {
return_value |= mods_enum[mod.toUpperCase()];
});
return return_value;
}
function hasMods(mods, disabledmods, scores){
let output = [];
scores.forEach(score => {
let check = true;
let enabled_mods = getMods(parseInt(score.enabled_mods));
mods.forEach(mod => {
if(!enabled_mods.includes(mod))
check = false;
});
disabledmods.forEach(mods => {
if(mods.every(a => enabled_mods.includes(a)))
check = false;
});
if(check)
output.push(score);
});
return output;
}
function getBestMods(scores, mods){
let filter = [];
function sortScore(a, b){
return parseInt(b.score) - parseInt(a.score);
}
let mod_combos = [
['HR', 'DT', 'FL'],
['EZ', 'DT', 'FL'],
['HR', 'HT', 'FL'],
['EZ', 'HT', 'FL'],
['HR', 'DT'],
['EZ', 'DT'],
['HR', 'HT'],
['EZ', 'HT'],
['HR'],
['EZ'],
['DT'],
['PF'],
['SD'],
['TD'],
['HT']
];
let non_combos = [];
mod_combos.forEach(mod_combo => {
if(mod_combo.every(a => mods.includes(a))){
filter = hasMods(mod_combo, non_combos, scores);
if(filter.length > 0) return filter.sort(sortScore);
}
non_combos.push(mod_combo);
});
return filter;
}
function getDifficultyAttribs(results){
let output = { };
results.forEach(result => {
let name = DIFF_ATTRIBS[result.type];
output[name] = result.value;
});
return output;
}
function calculateAccuracy(stats) {
const acc = (300 * (stats.great ?? 0) + 100 * (stats.ok ?? 0) + 50 * (stats.meh ?? 0)) / (300 * totalHits(stats))
return acc * 100;
}
function totalHits(stats) {
const hits = (stats.great ?? 0) + (stats.ok ?? 0) + (stats.meh ?? 0) + (stats.miss ?? 0)
return hits;
}
function calculateCsArOdHp(cs_raw, ar_raw, od_raw, hp_raw, mods_enabled){
var speed = 1, ar_multiplier = 1, ar, ar_ms;
let mods = mods_enabled.map(x => x.acronym)
if (mods.includes("DT") || mods.includes("NC")) {
speed *= mods_enabled.filter(mod => mod.acronym == "DT" || mod.acronym == "NC")[0].settings?.speed_change ?? 1.5;
} else if (mods.includes("HT") || mods.includes("DC")) {
speed *= mods_enabled.filter(mod => mod.acronym == "HT" || mod.acronym == "DC")[0].settings?.speed_change ?? 0.75;
}
if(mods.includes("HR")){
ar_multiplier *= 1.4;
}else if(mods.includes("EZ")){
ar_multiplier *= 0.5;
}
ar = ar_raw * ar_multiplier;
if(ar <= 5) ar_ms = ar0_ms - ar_ms_step1 * ar;
else ar_ms = ar5_ms - ar_ms_step2 * (ar - 5);
if(ar_ms < ar10_ms) ar_ms = ar10_ms;
if(ar_ms > ar0_ms) ar_ms = ar0_ms;
ar_ms /= speed;
if(ar <= 5) ar = (ar0_ms - ar_ms) / ar_ms_step1;
else ar = 5 + (ar5_ms - ar_ms) / ar_ms_step2;
var cs, cs_multiplier = 1;
if(mods.includes("HR")){
cs_multiplier *= 1.3;
}else if(mods.includes("EZ")){
cs_multiplier *= 0.5;
}
cs = cs_raw * cs_multiplier;
if(cs > 10) cs = 10;
var od, odms, od_multiplier = 1;
if(mods.includes("HR")){
od_multiplier *= 1.4;
}else if(mods.includes("EZ")){
od_multiplier *= 0.5;
}
od = od_raw * od_multiplier;
odms = od0_ms - Math.ceil(od_ms_step * od);
odms = Math.min(od0_ms, Math.max(od10_ms, odms));
odms /= speed;
od = (od0_ms - odms) / od_ms_step;
var hp, hp_multiplier = 1;
if(mods.includes("HR")){
hp_multiplier *= 1.4;
}else if(mods.includes("EZ")){
hp_multiplier *= 0.5;
}
hp = hp_raw * hp_multiplier;
if(hp > 10) hp = 10;
return {
cs: cs,
ar: ar,
od: od,
hp: hp
}
}
function getRankEmoji(rank){
switch(rank){
case 'XH':
return helper.emote('XH_Rank', null, discord_client) || "Silver SS";
case 'X':
return helper.emote('X_Rank', null, discord_client) || "SS";
case 'SH':
return helper.emote('SH_Rank', null, discord_client) || "Silver S";
case 'S':
return helper.emote('S_Rank', null, discord_client) || "S";
case 'A':
return helper.emote('A_Rank', null, discord_client) || "A";
case 'B':
return helper.emote('B_Rank', null, discord_client) || "B";
case 'C':
return helper.emote('C_Rank', null, discord_client) || "C";
case 'D':
return helper.emote('D_Rank', null, discord_client) || "D";
case 'F':
return helper.emote('F_Rank', null, discord_client) || "Fail";
}
}
function compareScores(a, b){
if(a.ended_at != b.ended_at)
return false;
if(a.user_id != b.user_id)
return false;
return true;
}
function ordinalSuffix(i) {
var j = i % 10,
k = i % 100;
if (j == 1 && k != 11) {
return i + "st";
}
if (j == 2 && k != 12) {
return i + "nd";
}
if (j == 3 && k != 13) {
return i + "rd";
}
return i + "th";
}
function getMaxCombo(score) {
const great = score?.maximum_statistics?.great ?? 0
const large_tick_hit = score?.maximum_statistics?.large_tick_hit ?? 0
// TODO: check if legacy_combo_increase is still used even
const legacy_combo_increase = score?.maximum_statistics?.legacy_combo_increase ?? 0
const ignore_hit = score?.maximum_statistics?.ignore_hit ?? 0
return Number(great + large_tick_hit + legacy_combo_increase + ignore_hit)
}
function convertStandardisedToClassic(score, object_count) {
return Math.round((Math.pow(object_count, 2) * 32.57 + 100000) * score / 1000000);
}
function getModSettingsString(mods) {
const appraochDifferentStyles = ["Linear", "Gravity", "InOut1", "InOut2", "Accelerate1", "Accelerate2", "Accelerate3", "Decelerate1", "Decelerate2", "Decelerate3"];
let string = "";
for (const mod of mods) {
switch (mod.acronym) {
case "EZ":
if (!mod.settings)
break;
string += `**EZ** ~ Extra Lives: \`${mod.settings.retries}\`\n`;
break;
case "HT":
case "DT":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("adjust_pitch"))
string += `**${mod.acronym}** ~ Adjust pitch: \`${mod.settings.adjust_pitch}\`\n`;
break;
case "SD":
case "PF":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("restart"))
string += `**${mod.acronym}** ~ Restart on fail: \`${mod.settings.restart}\`\n`;
break;
case "HD":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("only_fade_approach_circles"))
string += `**HD** ~ Only fade approach circles: \`${mod.settings.only_fade_approach_circles}\`\n`;
break;
case "FL":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("follow_delay"))
string += `**FL** ~ Follow delay: \`${mod.settings.follow_delay}\`\n`;
if (mod.settings.hasOwnProperty("size_multiplier"))
string += `**FL** ~ Flashlight size: \`${mod.settings.size_multiplier}\`\n`;
if (mod.settings.hasOwnProperty("combo_based_size"))
string += `**FL** ~ Change size based on combo: \`${mod.settings.combo_based_size}\`\n`;
break;
case "AC":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("minimum_accuracy"))
string += `**AC** ~ Minimum accuracy: \`${mod.settings.minimum_accuracy}\`\n`;
if (mod.settings.hasOwnProperty("accuracy_judge_mode"))
string += `**AC** ~ Accuracy mode: \`${mod.settings.accuracy_judge_mode}\`\n`;
if (mod.settings.hasOwnProperty("restart"))
string += `**AC** ~ Restart on fail: \`${mod.settings.restart}\`\n`;
break;
case "TP":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("seed"))
string += `**TP** ~ Seed: \`${mod.settings.seed}\`\n`;
if (mod.settings.hasOwnProperty("metronome"))
string += `**TP** ~ Metronome ticks: \`${mod.settings.metronome}\`\n`;
break;
case "CL":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("no_slider_head_accuracy"))
string += `**CL** ~ No slider head accuracy: \`${mod.settings.no_slider_head_accuracy}\`\n`;
if (mod.settings.hasOwnProperty("classic_note_lock"))
string += `**CL** ~ Apply Classic note lock: \`${mod.settings.classic_note_lock}\`\n`;
if (mod.settings.hasOwnProperty("always_play_tail_sample"))
string += `**CL** ~ Always play a slider's tail sample: \`${mod.settings.always_play_tail_sample}\`\n`;
if (mod.settings.hasOwnProperty("fade_hit_circle_early"))
string += `**CL** ~ Fade out hit circsles earlier: \`${mod.settings.fade_hit_circle_early}\`\n`;
if (mod.settings.hasOwnProperty("classic_health"))
string += `**CL** ~ Classic health: \`${mod.settings.classic_health}\`\n`;
break;
case "RD":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("seed"))
string += `**RD** ~ Seed: \`${mod.settings.seed}\`\n`;
if (mod.settings.hasOwnProperty("angle_sharpness"))
string += `**RD** ~ Angle sharpness: \`${mod.settings.angle_sharpness}\`\n`;
break;
case "MR":
if (!mod.settings)
string += `**MR** ~ Axis: \`horizontal\`\n`;
else if (mod.settings.hasOwnProperty("reflection") && mod.settings.reflection == 1)
string += `**MR** ~ Axis: \`vertical\`\n`;
else if (mod.settings.hasOwnProperty("reflection") && mod.settings.reflection == 2)
string += `**MR** ~ Axis: \`both\`\n`;
break;
case "WG":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("strength"))
string += `**WG** ~ Strength: \`${mod.settings.strength}\`\n`;
break;
case "GR":
case "DF":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("start_scale"))
string += `**${mod.acronym}** ~ Starting Size: \`${mod.settings.start_scale}\`\n`;
break;
case "WU":
case "WD":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("initial_rate"))
string += `**${mod.acronym}** ~ Initial rate: \`${mod.settings.initial_rate}\`\n`;
if (mod.settings.hasOwnProperty("final_rate"))
string += `**${mod.acronym}** ~ Final rate: \`${mod.settings.final_rate}\`\n`;
break;
case "BR":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("spin_speed"))
string += `**BR** ~ Roll speed: \`${mod.settings.spin_speed}\`\n`;
if (mod.settings.hasOwnProperty("direction"))
string += `**BR** ~ Direction: \`${mod.settings.direction}\`\n`;
break;
case "AD":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("scale"))
string += `**AD** ~ Initial size: \`${mod.settings.scale}\`\n`;
if (mod.settings.hasOwnProperty("style"))
string += `**AD** ~ Style: \`${appraochDifferentStyles[mod.settings.style]}\`\n`;
break;
case "MU":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("inverse_muting"))
string += `**MU** ~ Start muted: \`${mod.settings.inverse_muting}\`\n`;
if (mod.settings.hasOwnProperty("enable_metronome"))
string += `**MU** ~ Metronome: \`${mod.settings.enable_metronome}\`\n`;
if (mod.settings.hasOwnProperty("mute_combo_count"))
string += `**MU** ~ Final volume at combo: \`${mod.settings.mute_combo_count}\`\n`;
if (mod.settings.hasOwnProperty("affects_hit_sounds"))
string += `**MU** ~ Mute hit sounds: \`${mod.settings.affects_hit_sounds}\`\n`;
break;
case "NS":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("hidden_combo_count"))
string += `**NS** ~ Hidden at combo: \`${mod.settings.hidden_combo_count}\`\n`;
break;
case "MG":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("attraction_strength"))
string += `**MG** ~ Attraction strength: \`${mod.settings.attraction_strength}\`\n`;
break;
case "RP":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("repulsion_strength"))
string += `**RP** ~ Repulsion strength: \`${mod.settings.repulsion_strength}\`\n`;
break;
case "AS":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("initial_rate"))
string += `**AS** ~ Initial rate: \`${mod.settings.initial_rate}\`\n`;
break;
case "DP":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("max_depth"))
string += `**DP** ~ Maximum depth: \`${mod.settings.max_depth}\`\n`;
if (mod.settings.hasOwnProperty("show_approach_circles"))
string += `**DP** ~ Show Approach Circles: \`${mod.settings.show_approach_circles}\`\n`;
break;
case "BM":
if (!mod.settings)
break;
if (mod.settings.hasOwnProperty("max_size_combo_count"))
string += `**BM** ~ Maximum size at combo: \`${mod.settings.max_size_combo_count}\`\n`;
if (mod.settings.hasOwnProperty("max_cursor_size"))
string += `**BM** ~ Final size multiplier: \`${mod.settings.max_cursor_size}\`\n`;
break;
}
}
return string;
}
async function getScore(recent_raw, cb){
let recent = {};
let best_score;
recent = Object.assign({
score_id: recent_raw.id,
replay: recent_raw.has_replay,
user_id: recent_raw.user_id,
beatmap_id: recent_raw.beatmap.id,
rank: recent_raw.passed ? recent_raw.rank: "F",
passed: recent_raw.passed,
score: Number(recent_raw.total_score),
legacy_score: Number(recent_raw.legacy_total_score),
combo: Number(recent_raw.max_combo),
max_combo: getMaxCombo(recent_raw),
legacy_perfect: recent_raw.legacy_perfect,
count300: Number(recent_raw.statistics.great ?? 0),
count100: Number(recent_raw.statistics.ok ?? 0),
count50: Number(recent_raw.statistics.meh ?? 0),
countmiss: Number(recent_raw.statistics.miss ?? 0),
mods: recent_raw.mods,
date: recent_raw.ended_at,
unsubmitted: false,
thumbnail_url: recent_raw.beatmapset.covers["list@2x"]
}, recent);
if('pp' in recent_raw && Number(recent_raw.pp) > 0){
recent.pp = Number(recent_raw.pp);
}
let requests = [
api.get(`/users/${recent_raw.user_id}/scores/best`, { params: { limit: 100 } }),
//api.get(`/beatmaps/${recent_raw.beatmap.id}/scores`, { params: { mode: 'osu' } }),
//api.get(`/beatmaps/${recent_raw.beatmap.id}/scores/users/${recent_raw.user_id}`, { params: { mods: recent_raw.mods } }),
api.get(`/users/${recent_raw.user_id}/osu`),
api.get(`/beatmapsets/${recent_raw.beatmapset.id}`)
];
try {
const response = await api.get(`/beatmaps/${recent_raw.beatmap.id}/scores/users/${recent_raw.user_id}`)
best_score = response.data.score
best_score.position = response.data.position
} catch(e) {
best_score = e.response.data.score ?? {}
best_score.position = e.response.data.position ?? 0
}
Promise.all(requests).then(results => {
let user_best = results[0].data;
//let leaderboard = results[1].data;
//let best_score = results[2].data;
let user = results[1].data;
let beatmapset = results[2].data
let pb = 0;
let lb = 0;
let replay = 0;
for(let i = 0; i < user_best.length; i++){
if(compareScores(user_best[i], recent_raw)){
pb = ++i;
break;
}
}
// for(let i = 0; i < leaderboard.length; i++){
// if(compareScores(leaderboard[i], recent_raw)){
// lb = ++i;
// break;
// }
// }
if(compareScores(best_score, recent_raw)){
lb = best_score.position
}
recent = Object.assign({
pb: pb,
lb: lb,
username: user.username,
user_rank: Number(user.statistics.global_rank),
user_pp: Number(user.statistics.pp)
}, recent);
// if(best_score){
// if(compareScores(best_score, recent_raw)){
// replay = Number(best_score.replay ? 1 : 0);
// recent.score_id = best_score.id;
// }else{
// recent.unsubmitted = true;
// }
// }
let beatmap = recent_raw.beatmap;
//let beatmapset = recent_raw.beatmapset;
if(recent.mods.map(x => x.acronym).includes('DA')) {
recent.mods.forEach( mod => {
if(mod.acronym == "DA" && Object.entries(mod.settings ?? {}).length > 0){
beatmap.ar = mod.settings.approach_rate ?? beatmap.ar
beatmap.cs = mod.settings.circle_size ?? beatmap.cs
beatmap.accuracy = mod.settings.overall_difficulty ?? beatmap.accuracy
beatmap.drain = mod.settings.drain_rate ?? beatmap.drain
}
})
}
let diff_settings = calculateCsArOdHp(beatmap.cs, beatmap.ar, beatmap.accuracy, beatmap.drain, recent.mods);
let speed = 1;
if (recent.mods.map(x => x.acronym).includes("DT") || recent.mods.map(x => x.acronym).includes("NC")) {
speed *= recent.mods.filter(mod => mod.acronym == "DT" || mod.acronym == "NC")[0].settings?.speed_change ?? 1.5;
} else if (recent.mods.map(x => x.acronym).includes("HT") || recent.mods.map(x => x.acronym).includes("DC")) {
speed *= recent.mods.filter(mod => mod.acronym == "HT" || mod.acronym == "DC")[0].settings?.speed_change ?? 0.75;
}
let fail_percent = 1;
if(!recent_raw.passed)
fail_percent = (recent.count300 + recent.count100 + recent.count50 + recent.countmiss) / (beatmap.count_spinners + beatmap.count_sliders + beatmap.count_circles);
helper.downloadBeatmap(recent_raw.beatmap.id).finally(async () => {
let beatmap_path = path.resolve(config.osu_cache_path, `${recent_raw.beatmap.id}.osu`);
const beatmap_content = await fs.readFile(beatmap_path, 'utf8');
const set_on_lazer = recent_raw.build_id ? true : false;
const play_params = {
lazer: set_on_lazer,
mods: recent_raw.mods,
n300: recent_raw.statistics.great ?? 0,
n100: recent_raw.statistics.ok ?? 0,
n50: recent_raw.statistics.meh ?? 0,
misses: recent_raw.statistics.miss ?? 0,
combo: recent_raw.max_combo,
clockRate: speed,
}
if (recent_raw.statistics.large_tick_hit)
play_params.largeTickHits = recent_raw.statistics.large_tick_hit;
if (recent_raw.statistics.slider_tail_hit)
play_params.sliderEndHits = recent_raw.statistics.slider_tail_hit;
const fc_play_params = {
lazer: set_on_lazer,
mods: recent_raw.mods,
clockRate: speed,
n300: (recent_raw.statistics.great ?? 0) + (recent_raw.statistics.miss ?? 0),
n100: recent_raw.statistics.ok ?? 0,
n50: recent_raw.statistics.meh ?? 0,
}
const rosu_map = new rosu.Beatmap(beatmap_content)
const play = new rosu.Performance(play_params).calculate(rosu_map);
const fc_play = new rosu.Performance(fc_play_params).calculate(rosu_map);
rosu_map.free();
recent = Object.assign({
approved: beatmapset.status,
beatmapset_id: beatmapset.id,
artist: beatmapset.artist,
title: beatmapset.title,
version: beatmap.version,
bpm_min: beatmap.bpm_min * speed,
bpm_max: beatmap.bpm_max * speed,
legacy_max_combo: play.difficulty.maxCombo,
bpm: beatmap.bpm * speed,
creator: beatmapset.creator,
creator_id: beatmapset.user_id,
approved_date: beatmapset.ranked_date,
cs: diff_settings.cs,
ar: play.difficulty.ar,
od: play.difficulty.od,
hp: diff_settings.hp,
duration: beatmap.total_length,
fail_percent: fail_percent
}, recent);
recent = Object.assign({
stars: play.difficulty.stars,
pp_fc: fc_play.pp,
acc: recent_raw.accuracy * 100,
acc_fc: calculateAccuracy({
great: recent_raw.statistics.great ?? 0,
ok: recent_raw.statistics.ok ?? 0,
meh: recent_raw.statistics.meh ?? 0,
}),
}, recent);
if(recent.pp == null)
recent.pp = play.pp;
let strains_bar;
if(await helper.fileExists(beatmap_path)){
strains_bar = await module.exports.get_strains_bar(beatmap_path, recent.mods.map(mod => mod.acronym).join(''), recent.fail_percent, (recent.beatmapset_id == 481703 ? '#31858d' : undefined));
if(strains_bar)
recent.strains_bar = true;
}
if(recent.replay && await helper.fileExists(beatmap_path)){
let ur_promise = new Promise((resolve, reject) => {
if(config.debug)
helper.log('getting ur');
ur_calc.get_ur(
{
access_token: access_token,
player: recent_raw.user_id,
beatmap_id: recent_raw.beatmap.id,
mods_enabled: getModsEnum(recent_raw.mods.map(x => x.acronym)),
score_id: recent.score_id,
mods: recent.mods.map(x => x.acronym)
}).then(response => {
recent.ur = response.ur;
if(recent.countmiss == (response.miss || 0)
&& recent.count100 == (response['100'] || 0)
&& recent.count50 == (response['50'] || 0))
recent.countsb = response.sliderbreak;
if(recent.mods.map(x => x.acronym).includes("DT") || recent.mods.map(x => x.acronym).includes("NC"))
recent.cvur = response.ur / 1.5;
else if(recent.mods.map(x => x.acronym).includes("HT"))
recent.cvur = response.ur * 1.5;
resolve(recent);
});
});
recent.ur = -1;
if(recent.mods.map(mod => mod.acronym).includes("DT") || recent.mods.map(mod => mod.acronym).includes("HT"))
recent.cvur = -1;
cb(null, recent, strains_bar, ur_promise);
}else{
cb(null, recent, strains_bar);
}
}).catch(helper.error);
}).catch(err => {
cb("Couldn't reach osu!api. 💀");
helper.log(err);
});
}
function calculateStrains(type, diffobjs, speed_multiplier){
let strains = [];
let strain_step = STRAIN_STEP * speed_multiplier;
let interval_end = strain_step
let max_strain = 0.0;
for (let i = 0; i < diffobjs.length; ++i){
while (i * strain_step > interval_end) {
strains.push(max_strain);
if (i > 0) {
let decay = Math.pow(DECAY_BASE[type],
(interval_end - ((i - 1) * strain_step)) / 1000.0);
max_strain = diffobjs[i - 1] * decay;
} else {
max_strain = 0.0;
}
interval_end += strain_step;
}
max_strain = Math.max(max_strain, diffobjs[i]);
}
strains.push(max_strain);
return strains;
}
function calculateDifficultyValue(strains) {
const decayWeight = 0.9
let difficulty = 0
let weight = 1
let peaks = strains.filter(n => n > 0)