function.cpp

#include <iostream>
#include "function.h"
#include <fstream>
#include <cstdlib>
using namespace std;



bool loadmap ( int &xcoord, int &ycoord , int gamemap[ROWS][COLUM])
{
	ifstream ins;
	
	ins.open("map.txt");
	if(ins.fail())
		return false;
	else 
	{	
		ins >> xcoord >> ycoord;
		srand(time(NULL));
		
		for( int i = 0; i < ROWS; i++)
		{	for ( int j= 0; j < COLUM; j++)
				{ins >> gamemap[j][i];
				if ( gamemap[j][i] == 9)
					gamemap[j][i] =rand() % 7+1;
				}
		}	
	}
	return true;
}

 void update(Player &player, int gamemap[ROWS][COLUM])
{
	char playerinput;

	cout << "what way do you want to go" << endl;
	cin >> playerinput;


	switch (playerinput) 
{
	case 'n':
			pmove( player, 0,-1, gamemap);
			break; 		

	case 's':
			pmove( player, 0,+1, gamemap);
			break; 

	case 'e':
			pmove( player, +1,0, gamemap);
			break; 

	case 'w':
			pmove( player, -1,0, gamemap);
			break; 

	case 'q':
			int menuinput;
			cout << " Do you want to: \n";
			cout << "1) \t Save your current progress \n";
			cout << "2) \t Quit the game ? \n";
			cout << "3) \t cancel and return to the game "; 
			cin >> menuinput;

			if ( menuinput == 1) 
			cout << " this has not been implemented yet" << endl;

			if ( menuinput == 2) 
			cout << " this has not been implemented yet" << endl;	

			if ( menuinput == 3)
			cout << " this has not been implemented yet" << endl;

	default: 
			cout << "invalid input case" << endl;
		}
		encounters( player, gamemap[player.xcoord][player.ycoord]);
		gamemap[player.xcoord][player.ycoord]= 0;
}

void pmove (Player &p, int chxcoord, int chycoord, int gamemap[ROWS][COLUM])
{	
	if ( gamemap[p.xcoord+chxcoord][p.ycoord+chycoord] ==-1 )
		cout << " You cannot go this way right now" << endl;
		
	else if ( chxcoord < 0 && p.xcoord==0) 
			cout << "you cannot go west right now" << endl;

	else if ( chxcoord > 0 && p.xcoord== COLUM-1)
			cout << "you cannot go east right now" << endl;

	else if (chycoord > 0 && p.ycoord== ROWS-1) 
			cout << "you cannot go south right now" << endl;

	else if (chycoord < 0 && p.ycoord== 0)  
			cout << "you cannot go north right now" << endl;
	
	else if( gamemap[p.xcoord+chxcoord][p.ycoord+chycoord] ==999 )
		{	cout << " the game, you just won it " << endl;
			p.finish = true;
		}
		 
	else
	{ 	
			p.health -=5;
			p.xcoord+= chxcoord;
			p.ycoord+= chycoord;
	
		cout << "you have " << p.health << "HP left. " << endl; 
	}	
}

bool loadweapon(weapon wepAry[])
{
	cout << "loadWeapon called." << endl;
	ifstream infile;
	
	infile.open("weapon.txt");

	if(infile.fail())
	{	cout << " weapon.txt has failed to load" << endl;
		return false;
	}

	int i=0;
	
	while ( !infile.eof() && infile.good())
		{	infile.getline(wepAry[i].name, 100,'\n');
			infile >> wepAry[i].strength;
			infile.ignore(10, '\n');
			i++;
		}

	return true;
}
 
void encounters( Player &p, int currentsquare) 
{
	switch (currentsquare) 
	{
	case 0:
			break;	
	
	case 1:
			
			cout << "bonus! you add 50 strength to " << p.wepAry[p.currentweapon].name << endl;
			p.wepAry[p.currentweapon].strength += 50;
			cout << "your " << p.wepAry[p.currentweapon].name << "now has " << p.wepAry[p.currentweapon].strength << 				"strength" << endl;
			break;
			
		
	case 2: case 3: case 4:
							monsterbattle(p);
							break; 
							

	case 5:
			cout << "you find a potion and drink it " << endl;
			cout << "you gain 100HP!" << endl;
			p.health += 100;
			cout << "you now have " << p.health << "left" << endl;
			break;

	case 6:
			cout << "you find a potion and drink it " << endl;
			cout << "you lose 100HP!" << endl;
			p.health -= 100;
			cout << "you now have " << p.health << "left" << endl;
			break;		


	case 7:
			cout << " you find a trap. you have now died" << endl;
			p.health = 0;
			p.finish = true;
			break;
			
	default:
		break;
	}
}
	
void monsterbattle(Player &p)
{
	srand(time(NULL));
	int monsterhealth = random() % 500 +1;
	if ( monsterhealth <15) 
			monsterhealth= 15;

	while ( p.health !=0 && monsterhealth !=0 && p.currentweapon != -1) 
		{
if (p.currentweapon < 0 || p.currentweapon>=10) cout << p.currentweapon << endl;
			cout << "you encounter a monster with " << monsterhealth << "HP." << endl;
			cout << "you fight the monster with " << p.wepAry[p.currentweapon].name << endl;


			
			if ( p.wepAry[p.currentweapon].strength > monsterhealth)
			{
				cout << p.wepAry[p.currentweapon].name << "'s strength is decreases by " << monsterhealth << endl;
				p.wepAry[p.currentweapon].strength -=monsterhealth; 
				monsterhealth= 0;
				cout << p.wepAry[p.currentweapon].name << "'s strength is " << p.wepAry[p.currentweapon].strength << endl;
				cout << " the monster dies. " << endl;
  			}
			else 
			{
				cout << p.wepAry[p.currentweapon].name << " is destroyed " << endl;
				cout << "the monster loses " << monsterhealth << "HP" << endl;
				monsterhealth -= p.wepAry[p.currentweapon].strength;
				p.currentweapon = -1;
				cout << " the monster has " << monsterhealth << "HP left. " << endl;
				cout << "you lose" << p.health << "HP." << endl; 
				p.health -= 20; 
				cout << "you have " << p.health << "HP left" << endl;
			}
				
	}
}

int currentweapon ( weapon wepAry[10]) 
{
	for ( int i = 0; i < 10; i++) 
		if ( wepAry[i].strength > 0)
			return i;

	return -1;
}