using System;
using System.Collections.Generic;
using System.Text;

namespace tAC_Engine
{
    /// <summary>
    /// Serves as the parent to any specific games that use tAC_Engine, providing a generic interface
    /// to any specific game.
    /// </summary>
    public class GenericGame
    {
        protected GenericScoreCard mStockpile;        // Resources for this game

        
        /// <summary>
        /// Use the generic resource card
        /// </summary>
        public GenericGame()
        {
            mStockpile = new GenericScoreCard();
        }


        /// <summary>
        /// Ask about the overall quantity of a specific resource
        /// </summary>
        /// <param name="resourceType">Type of resource to inquire</param>
        /// <returns>Overall amount of that resource</returns>
        public virtual int QueryResource(string resourceType)
        {
            return mStockpile.QueryResource(resourceType);
        }


        /// <summary>
        /// Increases a specific overall resource
        /// </summary>
        /// <param name="resourceType">Type of resource to add</param>
        /// <param name="amount">Amount of that resource to add</param>
        public virtual void IncreaseResource(string resourceType, int amount)
        {
            mStockpile.Gather(resourceType, amount);
        }


        /// <summary>
        /// Attempts to decrement a specific overall resource
        /// </summary>
        /// <param name="resourceType">Type of resource to decrement</param>
        /// <param name="amount">Amount to decrement</param>
        /// <returns>True if successful, False otherwise (for lack of funds)</returns>
        public virtual bool DecreaseResource(string resourceType, int amount)
        {
            mStockpile.Gather(resourceType, -1 * amount);
            if (mStockpile.QueryResource(resourceType) < 0)
            {
                int negative = mStockpile.QueryResource(resourceType);
                mStockpile.Gather(resourceType, -1 * negative);
                return false;
            }
            return true;
        }


        /// <summary>
        /// Allows the game to run logic.
        /// </summary>
        public virtual void Update()
        {
        }
    }
}