71 lines
1.8 KiB
JavaScript
71 lines
1.8 KiB
JavaScript
const UserTool = require('../users/users.tool');
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const config = require('../config.js');
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var MatchTool = {};
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MatchTool.calculateELO = (player_elo, opponent_elo, progress, won, lost) =>
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{
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var p_elo = player_elo || 1000;
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var o_elo = opponent_elo || 1000;
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var p_elo_log = Math.pow(10.0, p_elo / 400.0);
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var o_elo_log = Math.pow(10.0, o_elo / 400.0);
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var p_expected = p_elo_log / (p_elo_log + o_elo_log);
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var p_score = won ? 1.0 : (lost ? 0.0 : 0.5);
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progress = Math.min(Math.max(progress, 0.0), 1.0);
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var elo_k = progress * config.elo_k + (1.0 - progress) * config.elo_ini_k;
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var new_elo = Math.round(p_elo + elo_k * (p_score - p_expected));
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return new_elo;
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}
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MatchTool.GetPlayerData = (player) =>
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{
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var data = {};
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data.username = player.username;
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data.elo = player.elo;
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data.reward = {};
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return data;
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}
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MatchTool.GainMatchReward = async(player, opponent, winner_username) => {
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var player_elo = player.elo;
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var opponent_elo = opponent.elo;
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var won = winner_username == player.username;
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var lost = winner_username == opponent.username;
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//Rewards
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var xp = won ? config.xp_victory : config.xp_defeat;
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var coins = won ? config.coins_victory : config.coins_defeat;
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player.xp += xp;
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player.coins += coins;
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//Match winrate
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player.matches +=1;
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if(won)
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player.victories += 1;
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else if (lost)
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player.defeats += 1;
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//Calculate elo
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var match_count = player.matches || 0;
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var match_progress = Math.min(Math.max(match_count / config.elo_ini_match, 0.0), 1.0);
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var new_elo = MatchTool.calculateELO(player_elo, opponent_elo, match_progress, won, lost);
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player.elo = new_elo;
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player.save();
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var reward = {
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elo: player.elo,
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xp: xp,
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coins: coins
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};
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return reward;
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};
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module.exports = MatchTool; |