guess_server_script.js

gistfile1.js

// env, kit 為 server 暴露給開發者用的功能物件
var sys = kit.sys; // 服務管理工具
var game = kit.game; // 遊戲邏輯工具
var db = kit.db; // 資料永續儲存介面
var mem = kit.sharedmem; // shared variable, 跨多個 logic files
var data_ = {}; // user defined local variable

/*
* 1. 覆寫遊戲服務的管理事件, 如 start, stop 等, 沒寫的話 server 會用內建版本
*/
sys.on('loop', function(){
  // server 定期、反覆執行此函式
  kit.say('現在是 tick' + mem.t++);
});
sys.on('start', function(){
  // ...服務啟動時...
});
sys.on('stop', function(){
  // ...停止服務時...
});

/*
* 2. 自定義的遊戲邏輯事件
* 參數1: message header
* 參數2: handler
*/
game.on('INIT', function(data){ // 遊戲啟動時, 資料初始化一次
  mem.plist = {}; // 玩家列表
  mem.upperbound = data.upperbound; //初始化遊戲資料1
  mem.lowerbound = data.lowerbound; //初始化遊戲資料2
  mem.userlimit  = data.userlimit;
  mem.gameStarted = false; // 遊戲開始與否
  mem.t = 0; // 遊戲時間
  
  data_.player_answer_count = 0;
});

game.on('PLAYER_JOIN', function(data){ // 玩家加入, 參考資料存在 data
  kit.say('player '+data.email+' wants to join.');

  // 遊戲已經開始, 或人已經滿了，不給加
  if (mem.gameStarted || count(mem.plist) >= data.userlimit)
    return;

  var eml = data.email;
  var info = data.info;
  if (count(mem.plist) < data.userlimit)
    mem.plist[eml] = info;
    
  if( count(mem.plist) === data.userlimit ) { 
    kit.say('game room is full, notifying all players.');
    mem.gameStarted = true; 
    // 發訊息給 plist 上所有人。GAME_START 是應該定義在 client side 的 handler
    for ( player in mem.plist ) {
      kit.say_to(player, 'GAME_START', /* send data respectively to each players */); 
    }
  }
});

game.on('PLAYER_ANSWER', function(data){ //玩家設定自己的答案
  if( mem.plist[data.email].answer === undefined ) {
    mem.plist[data.email].answer = data.answer;
    ++data_.player_answer_count;
  }
  
  if( data_.player_answer_count === count(mem.plist) ) {
    var p = random(mem.plist);
    kit.say_to(p, 'TURN_START'); 
    data_.whos_turn = p;
  }
});

game.on('PLAYER_GUESS', function(data){ //玩家猜對方的答案
  if( data_.whos_turn.info !== data.info ) //不確定是否該這樣寫，總之作驗證
    return;
    
  if( data.guess > mem.upperbound ) return; //驗證猜測是否在原本上下限裡
  if( data.guess < mem.lowerbound ) return; 
  
  var winner;
  
  if( data.guess > mem.plist[data.opponent.email].answer ) {
    kit.say_to(data_.whos_turn, 'TOO_BIG');
  }
  else if( data.guess < mem.plist[data.opponent.email].answer ) {
    kit.say_to(data_.whos_turn, 'TOO_SMALL');
  }
  else {
    winner = data_.whos_turn;
    for( player in mem.plist ) {
      kit.say_to(player, 'WIN', winner);
    }
    // Some cleanup here maybe?
  }
  
  if( winner === undefined ) { // No winner yet
    kit.say_to(data.opponent, 'TURN_START');
    data_.whos_turn = data.opponent;
  }
});

/* ... */

game.on('PLAYER_QUIT', function(data){ // 玩家離開, 參考資料存在 data
  // 其他必須要做的清理 ... 
  delete mem.plist[data.email];
  mem.gameStarted = false;
  // 重新讓 game logic 回到待命狀態，等待玩家加入
});

/* ... */