From e4d5a57a9d6518dc00903039b2068ba7cc9e447a Mon Sep 17 00:00:00 2001
From: Brandon Jackson <1drummer@att.net>
Date: Tue, 27 Oct 2015 21:30:52 -0500
Subject: [PATCH] Revamped the startGame function

This was the only appropriate way I saw in launching the server. The startGame function takes an int as an argument, for the port number the server will host the game on.
---
 Engine.cpp | 107 ++++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 90 insertions(+), 17 deletions(-)

diff --git a/Engine.cpp b/Engine.cpp
index d2d9d02..b5e7558 100755
--- a/Engine.cpp
+++ b/Engine.cpp
@@ -2,30 +2,84 @@
 #include <vector>
 #include <stdlib.h>
 #include <stdio.h>
+#include <string.h>
+#include <sstream>
+#include <unistd.h>
+#include <sys/types.h> 
+#include <sys/socket.h>
+#include <netinet/in.h>
 #include "Engine.h"
 
-
 Engine::Engine(){
 	Board* brd = new Board();
 	b = brd;
 }
 
-void Engine::startGame(){
-	cout<<"WELCOME\n";
+void Engine::startGame(int port){
+	
+	cout << "Launching server..." << endl;
+	int sockfd, newsockfd, portno;
+    socklen_t clilen;
+	struct sockaddr_in serv_addr, cli_addr;
+	int n;
+    
+	if (port < 2) {
+        cout << "ERROR, no port provided\n";
+        exit(1);
+    }
+     
+	sockfd = socket(AF_INET, SOCK_STREAM, 0);
+     
+	if (sockfd < 0) 
+        cout << "ERROR opening socket";
+     
+	bzero((char *) &serv_addr, sizeof(serv_addr)); 
+	portno = port; 
+	serv_addr.sin_family = AF_INET; 
+	serv_addr.sin_addr.s_addr = INADDR_ANY; 
+	serv_addr.sin_port = htons(portno);
+     
+	if (bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) 
+        cout << "ERROR on binding";
+     
+	listen(sockfd,5); 
+	clilen = sizeof(cli_addr);
+	newsockfd = accept(sockfd, (struct sockaddr *) &cli_addr, &clilen);
+     
+	if (newsockfd < 0) 
+        cout << "ERROR on accept";
 	
-	cout<<"1. Play against AI?\n";
-	cout<<"2. Play against a human?\n";
-	cout<<"Enter choice: \n";
-
-	int choice = -1;
-	cin >> choice;
-	cout << "OK" << endl;
-
 	string move;
-
 	bool gameOver = false; 
 	vector<Board> record;
 	b->snapshot(record, *b);
+    char buffer[256];
+    char info[256];
+	int choice = -1;
+	int choice_difficulty = -1;
+	string final_move;
+	
+	//Ask client about game type
+	string introduction = "WELCOME\n1. Play against AI?\n2. Watch AI vs. AI?\nEnter choice: \n";
+	write(newsockfd, introduction.c_str(), introduction.length());
+	n = read(newsockfd,info,255); //Reads choice as a string
+	istringstream convert(info); //Converts the read string to an integer
+	convert >> choice; //Sets value equal to the converted value
+	//Later in the project, we need to check for AI and Human modes
+	cout << "OK" << endl;
+	bzero(info,256); //Resets info back to normal
+	
+	/*//Becca- once your AI code is working, use this code:
+	
+	string difficulty_select = "Choose Difficulty\n1. Easy\n2. Medium\n4. Hard\nEnter choice: \n";
+	write(newsockfd, difficulty_select.c_str(), difficulty_select.length());
+	n = read(newsockfd,info,255);
+	istringstream convert(info);
+	convert >> choice_difficulty;
+	cout << "OK" << endl;
+	bzero(info,256);
+	
+	*/
 
 	while (gameOver != true)
 	{
@@ -34,9 +88,13 @@ void Engine::startGame(){
 		while(b->getTurn() == 'O' && !b->isValid())
 		{
 			b->displayBoard();
-			cout<<"\nEnter command: ";
-			cin>>move;
-			cout << "\n";
+			string boardState = b->boardToString();
+			final_move = b->boardToString();
+			write(newsockfd, boardState.c_str(), boardState.length());//Display the board to the client (line by line)
+			cout<<"\nStanding by for client... \n";
+			n = read(newsockfd,buffer,255);//Read the client's input
+			move = buffer;
+			bzero(buffer,256);
 			b->interpret(move, *b);
 			if(b->isValid()) {
 				b->changeTurns();
@@ -49,13 +107,28 @@ void Engine::startGame(){
 		while(b->getTurn() == 'X' )
 		{
 			easyAI();
+			/*Becca- once you finish your AI, uncomment this out and remove the line directly above this
+			if(choice_difficulty == 1)
+				easyAI();
+			else if(choice_difficulty == 2)
+				mediumAI();
+			else
+				hardAI();
+			*/
 		}
 		
 		gameOver = b->isGameOver();
 		b->setValidFalse();
-		
 		b->snapshot(record, *b);
 	}
+	final_move = b->boardToString();
+	string game_over = "\n\nGAME OVER!!!\n";
+	write(newsockfd, final_move.c_str(), final_move.length()); //Display the board to the client (line by line)
+	write(newsockfd, game_over.c_str(), game_over.length()); //Tell the client the game is over
+	cout << game_over;
+	usleep(1); 
+	close(newsockfd);
+	close(sockfd);
 }
 
 void Engine::easyAI()
@@ -142,4 +215,4 @@ moves Engine::minMax(Board* temp, moves m, int c){
 		//testing
 		return m;
 	}
-}
\ No newline at end of file
+}