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compute.js
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compute.js
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const constants = require('dotaconstants');
const utility = require('./utility');
const { max, min, isRadiant } = utility;
const { ancients } = constants;
/**
* Count the words that occur in a set of messages
* - messages: the messages to create the counts over
* - player_filter: if non-null, only count that player's messages
* */
function countWords(playerMatch, playerFilter) {
const messages = playerMatch.chat;
// extract the message strings from the message objects
// extract individual words from the message strings
let chatWords = [];
messages.forEach((message) => {
// if there is no player_filter
// if the passed player's player_slot matches this message's parseSlot converted to player_slot
const messageParseSlot = message.slot < 5 ? message.slot : message.slot + (128 - 5);
if (!playerFilter || (messageParseSlot === playerFilter.player_slot)) {
chatWords.push(message.key);
}
});
chatWords = chatWords.join(' ');
const tokens = utility.tokenize(chatWords);
// count how frequently each word occurs
const counts = {};
for (let i = 0; i < tokens.length; i += 1) {
// ignore the empty string
if (tokens[i]) {
if (!counts[tokens[i]]) {
counts[tokens[i]] = 0;
}
counts[tokens[i]] += 1;
}
}
// return the final counts
return counts;
}
/**
* Computes additional properties from a match/player_match
* */
function computeMatchData(pm) {
const selfHero = constants.heroes[pm.hero_id];
// Compute patch based on start_time
if (pm.start_time) {
pm.patch = utility.getPatchIndex(pm.start_time);
}
if (pm.cluster) {
pm.region = constants.cluster[pm.cluster];
}
if (pm.player_slot !== undefined && pm.radiant_win !== undefined) {
pm.isRadiant = isRadiant(pm);
pm.win = Number(isRadiant(pm) === pm.radiant_win);
pm.lose = Number(isRadiant(pm) === pm.radiant_win) ? 0 : 1;
}
if (pm.duration && pm.gold_per_min) {
pm.total_gold = Math.floor((pm.gold_per_min * pm.duration) / 60);
}
if (pm.duration && pm.xp_per_min) {
pm.total_xp = Math.floor((pm.xp_per_min * pm.duration) / 60);
}
if (pm.duration && pm.kills) {
pm.kills_per_min = pm.kills / (pm.duration / 60);
}
if (pm.kills !== undefined && pm.deaths !== undefined && pm.assists !== undefined) {
pm.kda = Math.floor((pm.kills + pm.assists) / (pm.deaths + 1));
}
if (pm.leaver_status !== undefined) {
pm.abandons = Number(pm.leaver_status >= 2);
}
if (pm.pgroup) {
pm.heroes = pm.pgroup;
}
if (pm.chat) {
// word counts for this player and all players
// aggregation of all words in all chat this player has experienced
pm.all_word_counts = countWords(pm, null);
// aggregation of only the words in all chat this player said themselves
pm.my_word_counts = countWords(pm, pm);
}
if (pm.kills_log && selfHero) {
// remove self kills
pm.kills_log = pm.kills_log.filter(k => k.key !== selfHero.name);
}
if (pm.killed) {
pm.neutral_kills = 0;
pm.tower_kills = 0;
pm.courier_kills = 0;
pm.lane_kills = 0;
pm.hero_kills = 0;
pm.observer_kills = 0;
pm.sentry_kills = 0;
pm.roshan_kills = 0;
pm.necronomicon_kills = 0;
pm.ancient_kills = 0;
Object.keys(pm.killed).forEach((key) => {
if (key.indexOf('creep_goodguys') !== -1 || key.indexOf('creep_badguys') !== -1) {
pm.lane_kills += pm.killed[key];
}
if (key.indexOf('observer') !== -1) {
pm.observer_kills += pm.killed[key];
}
if (key.indexOf('sentry') !== -1) {
pm.sentry_kills += pm.killed[key];
}
if (key.indexOf('npc_dota_hero') === 0) {
if (!selfHero || selfHero.name !== key) {
pm.hero_kills += pm.killed[key];
}
}
if (key.indexOf('npc_dota_neutral') === 0) {
pm.neutral_kills += pm.killed[key];
}
if ((key in ancients)) {
pm.ancient_kills += pm.killed[key];
}
if (key.indexOf('_tower') !== -1) {
pm.tower_kills += pm.killed[key];
}
if (key.indexOf('courier') !== -1) {
pm.courier_kills += pm.killed[key];
}
if (key.indexOf('roshan') !== -1) {
pm.roshan_kills += pm.killed[key];
}
if (key.indexOf('necronomicon') !== -1) {
pm.necronomicon_kills += pm.killed[key];
}
});
}
if (pm.buyback_log) {
pm.buyback_count = pm.buyback_log.length;
}
if (pm.item_uses) {
pm.observer_uses = pm.item_uses.ward_observer || 0;
pm.sentry_uses = pm.item_uses.ward_sentry || 0;
}
if (pm.gold_t && pm.gold_t[10]) {
// lane efficiency: divide 10 minute gold by static amount based on standard creep spawn
// var tenMinute = (43 * 60 + 48 * 20 + 74 * 2);
// 6.84 change
const melee = (40 * 60);
const ranged = (45 * 20);
const siege = (74 * 2);
const passive = (600 * 1.5);
const starting = 625;
const tenMinute = melee + ranged + siege + passive + starting;
pm.lane_efficiency = pm.gold_t[10] / tenMinute;
pm.lane_efficiency_pct = Math.floor(pm.lane_efficiency * 100);
}
if (pm.lane_pos) {
const laneData = utility.getLaneFromPosData(pm.lane_pos, isRadiant(pm));
pm.lane = laneData.lane;
pm.lane_role = laneData.lane_role;
pm.is_roaming = laneData.is_roaming;
}
// compute hashes of purchase time sums and counts from logs
if (pm.purchase_log) {
// remove ward dispenser and recipes
pm.purchase_log = pm.purchase_log.filter(purchase => !(purchase.key.indexOf('recipe_') === 0 || purchase.key === 'ward_dispenser'));
pm.purchase_time = {};
pm.first_purchase_time = {};
pm.item_win = {};
pm.item_usage = {};
for (let i = 0; i < pm.purchase_log.length; i += 1) {
const k = pm.purchase_log[i].key;
const { time } = pm.purchase_log[i];
if (!pm.purchase_time[k]) {
pm.purchase_time[k] = 0;
}
// Store first purchase time for every item
if (!pm.first_purchase_time[k]) {
pm.first_purchase_time[k] = time;
}
pm.purchase_time[k] += time;
pm.item_usage[k] = 1;
pm.item_win[k] = isRadiant(pm) === pm.radiant_win ? 1 : 0;
}
}
if (pm.purchase) {
// account for stacks
pm.purchase.dust *= 2;
pm.purchase_ward_observer = pm.purchase.ward_observer;
pm.purchase_ward_sentry = pm.purchase.ward_sentry;
pm.purchase_tpscroll = pm.purchase.tpscroll;
pm.purchase_rapier = pm.purchase.rapier;
pm.purchase_gem = pm.purchase.gem;
}
if (pm.actions && pm.duration) {
let actionsSum = 0;
Object.keys(pm.actions).forEach((key) => {
actionsSum += pm.actions[key];
});
pm.actions_per_min = Math.floor((actionsSum / pm.duration) * 60);
}
// compute throw/comeback levels
if (pm.radiant_gold_adv && pm.radiant_win !== undefined) {
const radiantGoldAdvantage = pm.radiant_gold_adv;
const throwVal = isRadiant(pm) ? max(radiantGoldAdvantage) : min(radiantGoldAdvantage) * -1;
const comebackVal = isRadiant(pm) ? min(radiantGoldAdvantage) * -1 : max(radiantGoldAdvantage);
const lossVal = isRadiant(pm) ? min(radiantGoldAdvantage) * -1 : max(radiantGoldAdvantage);
const stompVal = isRadiant(pm) ? max(radiantGoldAdvantage) : min(radiantGoldAdvantage) * -1;
pm.throw = pm.radiant_win !== isRadiant(pm) ? throwVal : undefined;
pm.comeback = pm.radiant_win === isRadiant(pm) ? comebackVal : undefined;
pm.loss = pm.radiant_win !== isRadiant(pm) ? lossVal : undefined;
pm.stomp = pm.radiant_win === isRadiant(pm) ? stompVal : undefined;
}
if (pm.pings) {
pm.pings = pm.pings['0'];
}
if (pm.life_state) {
pm.life_state_dead = (pm.life_state[1] || 0) + (pm.life_state[2] || 0);
}
}
module.exports = {
computeMatchData,
};