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/*  Simple turn-based battle algorithm: player vs. monster

    Written in C++ by Shelley, 07/07/2014, first lesson while learning C++
    Feel free to use this source for whatever you want.

    Contains basic C++:
        # Simple input/output via iostream.h
        # loops (if, else if, while)
        # simple conditions
        # simple math
        # variable declarations

    For more fun:
        # add random attack values
        # more monsters
        # add weapons, armor etc.
        # even more monsters!
*/


#include <iostream>

using namespace std;

int main()

{

// First, some basic stats for player and monster. May become float in the future for more complex stat calculation.
int health_player = 20;
int health_monster = 25;


// These values are constant for further programming, adding weapon bonus, etc.
const  int attack_player = 6;
const  int attack_monster = 5;

// Now, the battle loop.
while (health_monster > 0 && health_player > 0)
        {

            //First, display stats.
            cout << "Health Player:  " << health_player << " \t Attack Strength: " << attack_player << endl;
            cout << "Health Monster: " << health_monster << " \t Attack Strength: " << attack_monster << endl;


            // Implement a routine for turn-based fight.
            char fight;
            cout << "Fight (y)?";
            cin >> fight;
            cout << "" << endl;

            if (fight == 'y')
            {
                health_player = health_player - attack_monster;
                health_monster = health_monster - attack_player;
            }


            // Break if monster or player is killed.
                if (health_monster <= 0)
                    {
                       cout << "You won!" << endl;
                       break;
                    }
                    else if (health_player <= 0)
                    {
                       cout << "You lost!" << endl;
                       break;
                    }


            // Error Message for wrong input.
            else if (fight != 'y')
            {
                 cout << "Invalid key!" << endl;
            }
        }

return 0;
}