增加天梯排行榜

ladder/ladder.model.js

@@ -0,0 +1,119 @@
+const mongoose = require('mongoose');
+const Schema = mongoose.Schema;
+const ladderService = require('./ladder.service');
+
+const leaderboardSchema = new Schema({
+  playerId: { type: String, index: true, required: true },
+  username: { type: String, required: true },
+  avatar: { type: String, default: "" },
+  rankId: { type: Number, default: 1 },
+  rankScore: { type: Number, default: 0 },
+  stars: { type: Number, default: 0 },
+  totalWins: { type: Number, default: 0 },
+  position: { type: Number, required: true },
+  lastUpdated: { type: Date, default: Date.now }
+});
+
+const Leaderboard = mongoose.model('Leaderboard', leaderboardSchema);
+
+// Leaderboard functions
+exports.generateLeaderboard = async () => {
+  try {
+    // Clear current leaderboard
+    await Leaderboard.deleteMany({});
+    
+    // Get all users
+    const User = mongoose.model('Users');
+    const users = await User.find({});
+    
+    // Sort users based on ranking criteria:
+    // 1. Rank level (higher is better)
+    // 2. Rank score (for王者分数 mechanism)
+    // 3. Stars
+    // 4. Total wins
+    const sortedUsers = users.sort((a, b) => {
+      const configA = ladderService.getRankConfig(a.rankId);
+      const configB = ladderService.getRankConfig(b.rankId);
+      
+      // Compare rank levels
+      if (configA.Level !== configB.Level) {
+        return configB.Level - configA.Level;
+      }
+      
+      // For players with rank score mechanism
+      if (configA.RankScore === 1 && configB.RankScore === 1) {
+        if (a.rankScore !== b.rankScore) {
+          return b.rankScore - a.rankScore;
+        }
+      }
+      
+      // Compare stars
+      if (a.stars !== b.stars) {
+        return b.stars - a.stars;
+      }
+      
+      // Compare total wins
+      return b.totalWins - a.totalWins;
+    });
+    
+    // Take top 100 players
+    const topPlayers = sortedUsers.slice(0, 100);
+    
+    // Create leaderboard entries
+    const leaderboardEntries = [];
+    for (let i = 0; i < topPlayers.length; i++) {
+      const player = topPlayers[i];
+      const entry = new Leaderboard({
+        playerId: player._id,
+        username: player.username,
+        avatar: player.avatar,
+        rankId: player.rankId,
+        rankScore: player.rankScore,
+        stars: player.stars,
+        totalWins: player.totalWins,
+        position: i + 1
+      });
+      leaderboardEntries.push(entry);
+    }
+    
+    // Save all entries
+    if (leaderboardEntries.length > 0) {
+      await Leaderboard.insertMany(leaderboardEntries);
+    }
+    
+    return leaderboardEntries;
+  } catch (error) {
+    console.error('Error generating leaderboard:', error);
+    return [];
+  }
+};
+
+exports.getLeaderboard = async () => {
+  try {
+    const leaderboard = await Leaderboard.find({}).sort({ position: 1 });
+    return leaderboard;
+  } catch (error) {
+    console.error('Error getting leaderboard:', error);
+    return [];
+  }
+};
+
+exports.getPlayerPosition = async (playerId) => {
+  try {
+    const entry = await Leaderboard.findOne({ playerId: playerId });
+    return entry ? entry.position : null;
+  } catch (error) {
+    console.error('Error getting player position:', error);
+    return null;
+  }
+};
+
+// Initialize the ladder for a new player
+exports.initializePlayerLadder = (player) => {
+  player.rankId = 1;
+  player.stars = 0;
+  player.rankScore = 0;
+  player.winStreak = 0;
+  player.totalWins = 0;
+  return player;
+};