#include <iostream.h>
#include <math.h>
#include <fstream.h>
#include <string.h>
#include <stdlib.h>
int MAXBUFFERLENGTH;
#include "FILEMAN.CPP"

//arrotonda un numero in virgola mobile in intero
long round(double num)
{
	long tmp;
	tmp = long(num);
	if(((num-float(tmp))*1000)>=500) tmp++;
	return tmp;
}

//calcola la popolazione dopo un tot di ore
long pop_end(long pop_start, float pop_growth, long hours)
{
	return round(float(pop_start)*pow(float(1)+pop_growth/100, hours));
}

//calcola le ore necessarie per raggiungere la popolazione indicata
long hours_to_pop(long population, float pop_growth, long pop_end)
{
	long hours;
	hours = 0;
	while(population < pop_end)
	{
		population = population+round(float(population)*pop_growth/100);
		hours++;
	}
	return hours;
}

//calcola le ore necessarie per raggiungere un tot indicato
long hours_to(long what, long growth, long end)
{
	long hours;
	hours = 0;
	while(what < end)
	{
		what = what+growth;
		hours++;
	}
	return hours;
}

//inserisce i dati di base
void setup(long &population, float &pop_growth, long &metal, long &metal_growth, long &mineral, long &mineral_growth)
{
	cout << "Initialization..." << endl;

	cout << "Insert Actual Population (" << population << "): ";
	cin >> population;
	cout << "Insert Population Growth per hour (" << pop_growth << "%): ";
	cin >> pop_growth;
	cout << "Insert Actual Metals (" << metal << "): ";
	cin >> metal;
	cout << "Insert actual Metals Production per hour: (" << metal_growth << "): ";
	cin >> metal_growth;
	cout << "Insert Actual Minerals: (" << mineral << "): ";
	cin >> mineral;
	cout << "Insert actual Metarals Production per hour: (" << mineral_growth << "): ";
	cin >> mineral_growth;

	cout << "Completed!" << endl;
}


void save(Fileman &planetstd, long population, float pop_growth, long metal, long metal_growth, long mineral, long mineral_growth)
{
	char num[10];
	ltoa(population, num, 10);
	planetstd.Write(num, 1, 1);
	ltoa(round(pop_growth*1000), num, 10);
	planetstd.Write(num, 1);
	ltoa(metal, num, 10);
	planetstd.Write(num, 1);
	ltoa(metal_growth, num, 10);
	planetstd.Write(num, 1);
	ltoa(mineral, num, 10);
	planetstd.Write(num, 1);
	ltoa(mineral_growth, num, 10);
	planetstd.Write(num, 1);
}

int main()
{
	long population = 0;
	float pop_growth = 0;

	long metal = 0;
	long metal_growth = 0;

	long mineral = 0;
	long mineral_growth = 0;

	long tmp;
	int ch;
	char c;

	MAXBUFFERLENGTH=1000;
	Fileman planetstd("darkman.inf");

	cout << "Loading 'darkman.inf'..." << endl;
	if(!planetstd.Exists())
	{
		cout << "WARNING: Unable to find the file!" << endl;
		setup(population, pop_growth, metal, metal_growth, mineral, mineral_growth);
		save(planetstd, population, pop_growth, metal, metal_growth, mineral, mineral_growth);
	}
	else
	{
		if(planetstd.ReadLine()) population = atol(planetstd.buffer);
		planetstd.ReadLine();
		if(planetstd.ReadLine()) pop_growth = float(atol(planetstd.buffer))/1000;
		planetstd.ReadLine();
		if(planetstd.ReadLine()) metal = atol(planetstd.buffer);
		planetstd.ReadLine();
		if(planetstd.ReadLine()) metal_growth = atol(planetstd.buffer);
		planetstd.ReadLine();
		if(planetstd.ReadLine()) mineral = atol(planetstd.buffer);
		planetstd.ReadLine();
		if(planetstd.ReadLine()) mineral_growth = atol(planetstd.buffer);
		cout << "Completed." << endl;
	}
	//setup(population, pop_growth, metal, metal_growth, mineral, mineral_growth);

	do
	{
		cout << endl << "DARKMAN - ver 0.2 alpha - by Rogue" << endl << endl;

		cout << "Actual Population: " << population << endl;
		cout << "Actual Population Growth: " << pop_growth << endl;
		cout << "Actual Metals: " << metal << endl;
		cout << "Actual Metals Growth: " << metal_growth << endl;
		cout << "Actual Minerals: " << mineral << endl;
		cout << "Actual Minerals Growth: " << mineral_growth << endl;
		cout << endl;

		cout << "[1] Population after x hours" << endl;
		cout << "[2] Hours to match x population" << endl << endl;

		cout << "[3] Metals after x hours" << endl;
		cout << "[4] Hours to match x metals" << endl << endl;

		cout << "[5] Minerals after x hours" << endl;
		cout << "[6] Hours to match x minerals" << endl << endl;

		cout << "[8] Setup" << endl << endl;
		cout << "[9] Save" << endl << endl;

		cout << "[0] Quit" << endl;
		cout << ">";
		cin >> ch;
		if(ch==1)
		{
			cout << "Insert hours: ";
			cin >> tmp;
			cout << "Final population will be " << pop_end(population, pop_growth, tmp) << endl;
			cin >> c;
		}
		else
		if(ch==2)
		{
			cout << "Insert final population: ";
			cin >> tmp;
			cout << "You'll need " << hours_to_pop(population, pop_growth, tmp) << " hours" << endl;
			cin >> c;
		}
		else
		if(ch==3)
		{
			cout << "Insert hours: ";
			cin >> tmp;
			cout << "Final metals will be " << metal+metal_growth*tmp << endl;
			cin >> c;
		}
		else
		if(ch==4)
		{
			cout << "Insert final metals: ";
			cin >> tmp;
			cout << "You'll need " << hours_to(metal, metal_growth, tmp) << " hours" << endl;
			cin >> c;
		}
		else
		if(ch==5)
		{
			cout << "Insert hours: ";
			cin >> tmp;
			cout << "Final minerals will be " << mineral+mineral_growth*tmp << endl;
			cin >> c;
		}
		else
		if(ch==6)
		{
			cout << "Insert final minerals: ";
			cin >> tmp;
			cout << "You'll need " << hours_to(mineral, mineral_growth, tmp) << " hours" << endl;
			cin >> c;
		}
		else
		if(ch==8)
		{
			setup(population, pop_growth, metal, metal_growth, mineral, mineral_growth);
		}
		else
		if(ch==9)
		{
			save(planetstd, population, pop_growth, metal, metal_growth, mineral, mineral_growth);
		}
	}while(ch);
	return 0;
}