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C#/코드해석하기 +1

해석연습하기

C#/코드해석하기2019. 4. 3. 01:32
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
namespace Study_07
{
    public class Inventory<T> where T : Item, new()
    {
        private List<T> items;
 
        public Inventory()
        {
            this.items = new List<T>();
        }
 
        public void AddItem(T item, out bool result)
        {
            if (item == null)
            {
                result = false;
                return;
            }
            else
            {
                Item foundItem = null;
                foreach (var element in this.items)
                {
                    if (element.name.Equals(item.name))
                    {
                        foundItem = element;
                    }
                }
 
                if (foundItem != null)
                {
                    foundItem.stack += item.stack;
                    result = true;
                }
                else
                {
                    result = true;
                    this.items.Add(item);
                }
            }
        }
 
        public T GetItem(string name, int stack = 1) 
        {
            Item foundItem = null;
            Item rtnItem = null;
 
            foreach (var item in this.items)
            {
                if (item.name == name)
                {
                    foundItem = item;
                }
            }
 
            if (foundItem != null)
            {
                var getStack = 0;
                var remainStack = foundItem.stack;
 
                if (stack >= foundItem.stack)
                {
                    getStack = foundItem.stack;
                    remainStack = 0;
                }
                else {
                    getStack = stack;
                    remainStack = foundItem.stack - getStack;
                    foundItem.stack -= getStack;
                }
 
                rtnItem = new T();
                rtnItem.name = foundItem.name;
                rtnItem.stack = getStack;
 
                if (remainStack <= 0)
                {
                    this.RemoveItem(foundItem.name);
                }
            }
 
            return rtnItem as T;
        }
 
        public bool RemoveItem(string name)
        {
            foreach (var element in items)
            {
                if (element.name.Equals(name))
                {
                    this.items.Remove(element);
                    return true;
                }
                else
                {
                    return false;
                }
            }
            return false;
        }
 
        public T FindItem(string name)
        {
            foreach (var element in this.items)
            {
                if (element.name == name)
                {
                    return element as T;
                }
            }
            return default (T);
        }
 
        public void UpdateItem(ref T item, string name, int stack)
        {
            if (item == null) {
                Console.WriteLine("업데이트 실패");
                return;
            }
            
            item.name = name;
            item.stack = stack;
        }
 
        public void DisplayItems()
        {
            if (items.Count <= 0)
            {
                Console.WriteLine("인벤토리에 아이템이 없습니다.");
            }
            else
            {
                foreach (var item in this.items)
                {
                    Console.WriteLine("-> {0} x{1}", item.name, item.stack);
                }
            }
        }
    }
}
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