import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class MM {
	static String f = "";

	public static void main(String[] args) {
		int s = 0;
		String n = "";
		String diff = "";
		boolean ans = false;
		int[] d = new int[4];
		int[] pos = new int[4];
		pos[0] = (int) (Math.random() * 100);
		pos[1] = (int) (Math.random() * 100);
		pos[2] = (int) (Math.random() * 100);
		pos[3] = (int) (Math.random() * 100);
		f = readLine("Welcome to MasterMind by Greg Cawthorne!\nIn this game you attempt to crack a code with only the aid of minor hints and you own ingenuity!\nPress enter to begin! ");
		f = readLine("Would you like to play with letters (1) or numbers (2)? ");
		do {
			if (f.equals("letters") || f.equals("1")) {
				diff = "letters";
				ans = true;
				System.out
						.println("The code will be made up 4 letters of either R,G,B,Y,P,T ");
			} else if (f.equals("numbers") || f.equals("2")) {
				diff = "numbers";
				ans = true;
				System.out
						.println("The code will be made up of 4 numbers of either 1,2,3,4,5,6 ");
			} else {
				f = readLine("Sorry, I didn't quite get that. Would you like to play with letters (1) or numbers (2)? ");
			}
		} while (ans == false);
		for (int x = 0; x <= 3; x++) {
			if (pos[x] <= 17) {
				d[x] = 1;
			} else if (pos[x] <= 34) {
				d[x] = 2;
			} else if (pos[x] <= 51) {
				d[x] = 3;
			} else if (pos[x] <= 68) {
				d[x] = 4;
			} else if (pos[x] <= 85) {
				d[x] = 5;
			} else if (pos[x] <= 100) {
				d[x] = 6;
			}}
		if (diff.equals("numbers")) {
				n = "numbers either 1,2,3,4,5 or 6";
		} else if (diff.equals("letters")) {
			n = "letters either R,B,G,Y,P or T all caps";
		}

		System.out.println("The computer has thought of his sequence.");
		if(diff == "letters"){
			check(d, n, s);
		} else if (diff == "numbers"){
			check2(n, d, s);
		}
	}

	public static void check(int[] d, String n, int s) {
		int count2= 0;
		String r = "R";
		String b = "B";
		String g = "G";
		String y = "Y";
		String p = "P";
		String tq = "T";
		String f = "";
		boolean z = false;
		int v = 0;
		f = readLine("Take a guess! ");
		
		if ((f.length() == 4)
				&& (f.charAt(0) == r.charAt(0) || f.charAt(0) == b.charAt(0)
						|| f.charAt(0) == g.charAt(0)
						|| f.charAt(0) == y.charAt(0)
						|| f.charAt(0) == p.charAt(0) || f.charAt(0) == tq
						.charAt(0))
				&& (f.charAt(1) == r.charAt(0) || f.charAt(1) == b.charAt(0)
						|| f.charAt(1) == g.charAt(0)
						|| f.charAt(1) == y.charAt(0)
						|| f.charAt(1) == p.charAt(0) || f.charAt(1) == tq
						.charAt(0))
				&& (f.charAt(2) == r.charAt(0) || f.charAt(2) == b.charAt(0)
						|| f.charAt(2) == g.charAt(0)
						|| f.charAt(2) == y.charAt(0)
						|| f.charAt(2) == tq.charAt(0) || f.charAt(2) == p
						.charAt(0))
				&& (f.charAt(3) == r.charAt(0) || f.charAt(3) == b.charAt(0)
						|| f.charAt(3) == g.charAt(0)
						|| f.charAt(3) == y.charAt(0)
						|| f.charAt(3) == tq.charAt(0) || f.charAt(3) == p.charAt(0))) {
			z = true;
			System.out.println();
			s++;
			int chin[] = new int[6];
			int chin2[] = new int[6];
			char bin[] = new char[6];
			bin[0] = 'R'; bin[1] = 'B'; bin[2] = 'G'; bin[3] = 'Y'; bin[4] = 'P'; bin[5] = 'T';
			char a[] = new char[4];
			int t[] = new int[4];
			for (int x = 0;x<4;x++){
			a[x] = (f.charAt(x));
			}
			for (int eye = 0; eye< 4;eye++){
				for (int tim = 0; tim<6;tim++){
				if (a[eye] == bin[tim]){
					t[eye] = tim +1;
				}}
				}for (int x = 0;x<4;x++){
			if (t[x] == 1){
				chin[0] = chin[0]+1;
			} else if (t[x] == 2){
				chin[1] = chin[1]+1;
			} else if (t[x] == 3){
				chin[2] = chin[2]+1;
			} else if (t[x] == 4){
				chin[3] = chin[3]+1;
			} else if (t[x] == 5){
				chin[4] = chin[4]+1;
			} else if (t[x] == 6){
				chin[5] = chin[5]+1;
			}
			if (d[x] == 1){
				chin2[0] = chin2[0]+1;
			} else if (d[x] == 2){
				chin2[1] = chin2[1]+1;
			} else if (d[x] == 3){
				chin2[2] = chin2[2]+1;
			} else if (d[x] == 4){
				chin2[3] = chin2[3]+1;
			} else if (d[x] == 5){
				chin2[4] = chin2[4]+1;
			} else if (d[x] == 6){
				chin2[5] = chin2[5]+1;
			}
		}
		
			for (int x = 0; x <= 3; x++) {
				if (d[x] == t[x]) {
					v++;
				}
				}
				
		for (int x = 0;x<6;x++){
			if (chin[x] <= chin2[x]){
				count2 = count2 + chin[x];
			} else {
				count2 = count2 + chin2[x];			}
		} count2 = count2 - v;
		}
		if (z == false) {
			System.out.println("Invalid guess. Please guess four " + n
					+ " with no spaces. :)");
		} else { 
			System.out.println("You guessed: " + f);
			System.out.println("There are "+v+" letters in the right place,\nand "+count2+" other letters which are right, but in the wrong place.");
		}
		if (v == 4) {
			System.out.print("Well done you cracked the code in " + s
					+ " attempts!\n");
		do{ f = readLine("Do you want to play again? ");
		if (f.equals("yes") || f.equals("y") || f.equals("YES")){
			main(null);
		} else if (f.equals("no") || f.equals("n") || f.equals("NO")){
			System.out.println("I hope you enjoyed MasterMind by Greg Cawthorne!");
			System.exit(0);
		} else {
			System.out.print("Sorry I didn't quite get that. ");
			z = false;
		}} while (z == false);
		} check(d, n, s);
	}

	public static void check2(String n, int[] d, int s){
		int count2 = 0;
		boolean z = false;
		int v = 0;
		String one = "1";
		String two = "2";
		String three = "3";
		String four = "4";
		String five = "5";
		String six = "6";
		f = readLine("Take a guess! ");
		if((f.length() == 4) && (f.charAt(0) == one.charAt(0) || f.charAt(0) == two.charAt(0) || f.charAt(0) == three.charAt(0)
						|| f.charAt(0) == four.charAt(0) || f.charAt(0) == five.charAt(0) || f.charAt(0) == six.charAt(0))
				&& (f.charAt(1) == one.charAt(0) || f.charAt(1) == two.charAt(0)
						|| f.charAt(1) == three.charAt(0)
						|| f.charAt(1) == four.charAt(0)
						|| f.charAt(1) == five.charAt(0) || f.charAt(1) == six.charAt(0))
				&& (f.charAt(2) == one.charAt(0) || f.charAt(2) == two.charAt(0)
						|| f.charAt(2) == three.charAt(0)
						|| f.charAt(2) == four.charAt(0)
						|| f.charAt(2) == five.charAt(0) || f.charAt(2) == six.charAt(0))
				&& (f.charAt(3) == one.charAt(0) || f.charAt(3) == two.charAt(0)
						|| f.charAt(3) == three.charAt(0)
						|| f.charAt(3) == four.charAt(0)
						|| f.charAt(3) == five.charAt(0) || f.charAt(3) == six.charAt(0))){
			z = true;
			System.out.println();
			s++;
			int chin[] = new int[6];
			int chin2[] = new int[6];
			String a[] = new String[4];
			int t[] = new int[4];
			for (int x = 0;x<=3;x++){
			a[x] = String.valueOf(f.charAt(x));
			t[x] = Integer.parseInt(a[x]);
			if (t[x] == 1){
				chin[0] = chin[0]+1;
			} else if (t[x] == 2){
				chin[1] = chin[1]+1;
			} else if (t[x] == 3){
				chin[2] = chin[2]+1;
			} else if (t[x] == 4){
				chin[3] = chin[3]+1;
			} else if (t[x] == 5){
				chin[4] = chin[4]+1;
			} else if (t[x] == 6){
				chin[5] = chin[5]+1;
			}
			if (d[x] == 1){
				chin2[0] = chin2[0]+1;
			} else if (d[x] == 2){
				chin2[1] = chin2[1]+1;
			} else if (d[x] == 3){
				chin2[2] = chin2[2]+1;
			} else if (d[x] == 4){
				chin2[3] = chin2[3]+1;
			} else if (d[x] == 5){
				chin2[4] = chin2[4]+1;
			} else if (d[x] == 6){
				chin2[5] = chin2[5]+1;
			}
		}
		System.out.println("You guessed: " + f);
			for (int x = 0; x <= 3; x++) {
				if (d[x] == t[x]) {
					v++;
				}
				}
				
		for (int x = 0;x<6;x++){
			if (chin[x] <= chin2[x]){
				count2 = count2 + chin[x];
			} else {
				count2 = count2 + chin2[x];			}
		} count2 = count2 - v;
		}
		if (z == false) {
			System.out.println("Invalid guess. Please guess four " + n
					+ " with no spaces. :)");
		} else { 
			System.out.println("There are "+v+" numbers in the right place,\nand "+count2+" other numbers which are right, but in the wrong place.");
		}
		if (v == 4) {
			System.out.print("Well done you cracked the code in " + s
					+ " attempts!\n");
		do{ f = readLine("Do you want to play again? ");
		if (f.equals("yes") || f.equals("y") || f.equals("YES")){
			main(null);
		} else if (f.equals("no") || f.equals("n") || f.equals("NO")){
			System.out.println("I hope you enjoyed MasterMind by Greg Cawthorne!");
			System.exit(0);
		} else {
			System.out.print("Sorry I didn't quite get that. ");
			z = false;
		}} while (z == false);
		} check2(n, d, s);
	}
	
	
	public static String readLine(String prompt) {
		String input = "";
		System.out.print(prompt);
		InputStreamReader isr = new InputStreamReader(System.in);
		BufferedReader br = new BufferedReader(isr);
		try {

			input = br.readLine();

		} catch (IOException ioe) {
		}
		return input;
	}
}