我对DCI的解理

//ppt
function Player(name) {
	this.name = name;
}

Player.prototype.sayHello = function() {
	return '大家好，我是' + this.name;
}

//role
function Fighter(player) {
	for (var i in player) {
		this[i] = player[i];
	}
}

Fighter.prototype.attack = function(fighter) {

	console.log(this.name + ' 攻击了 ' + fighter.name);
	return this.name + ' 胜利了';
}

//mi
function FightingContext(fighters) {

	this.attacker = arguments[0];
	this.defender = arguments[1];

	console.log(this.attacker.sayHello());
	console.log(this.defender.sayHello());
}

FightingContext.prototype.interation = function(callback) {

	console.log(this.attacker.name + ' 加入了战斗');
	console.log(this.defender.name + ' 加入了战斗');

	var res = this.attacker.attack(this.defender);
	callback(res);
};

//fighting

var p1 = new Player('first player');
var p2 = new Player('second player');

var cxt = new FightingContext(new Fighter(p1), new Fighter(p2));
cxt.interation(function(res) { console.log('战斗结果：' + res); });