actor-role system

test.js

/**
 どのようなコードイメージになるかを考える
 テーマ：
 アクションゲーム用
 最初はCreateJSシリーズを使う
 */

var ars = function(){
	function createMethodsFromRoles(proto, roles){
		var methodNames = listUpMethodNames(roles);
		for(var methodName in methodNames){
			proto[methodName] = createMethod(methodName, methodNames[methodName]);
		}
	}

	function listUpMethodNames(roles){
		var result = {};
		for(var roleName in roles){
			var role = roles[roleName];
			for(var name in role.prototype){
				if(role.prototype.hasOwnProperty(name) && (typeof role.prototype[name] === 'function')){
					if(!result[name]){
						result[name] = [];
					}

					result[name].push(roleName);
				}
			}
		}
		return result;
	}

	function createMethod(methodName, table){
		return function(){
			for(var n = 0, l = table.length; n < l; ++n){
				var role = this.roles[table[n]];
				role[methodName].apply(role, arguments);
			}
		};
	}

	function createActor(roles){
		function ActorBase(){
			var key;
			this.roles = {};
			for(key in roles){
				var role = new roles[key];
				this.roles[key] = role;
				this[key] = role;
			}

			for(key in roles){
				for(var key2 in roles){
					this[key][key2] = this[key2];
				}
				this[key].actor = this;
			}
		}

		createMethodsFromRoles(ActorBase.prototype, roles);

		ActorBase.prototype.destroy = function(){
			var c = ActorBase.collection;
			c.splice(c.indexOf(this));
		};

		ActorBase.collection = [];

		ActorBase.forEach = function(unary){
			for(var n = 0; n < ActorBase.collection.length; ++n){
				unary(ActorBase.collection[n])
			}
		};

		return ActorBase;
	}


	return {
		actor: function(roles){
			return createActor(roles);
		},

		role: function(role){
			function RoleBase(){
				if(role.init){
					role.init.apply(this, arguments);
				}
			}

			for(var key in role){
				if(key !== "init"){
					RoleBase.prototype[key] = role[key];
				}
			}

			return RoleBase;
		}
	};
}();



window.onload = function(){
	var Controller = ars.role({
		init: function(){

		},
		update: function(){
			console.log("update");
		},
		remove: function(){
			this.actor.destroy();
		}
	});


	var Player = ars.actor({
		controller: Controller
	});


	var p = new Player();
	Player.forEach(function(actor){
		actor.update();
	});
	p.remove();
	Player.forEach(function(){
		console.log("nothing");
	});
};