From 6ad56fb9effee199d130186c13f5b39f770429ab Mon Sep 17 00:00:00 2001
From: Aadhavan Srinivasan <aadhavan@twomorecents.org>
Date: Fri, 23 Feb 2024 11:16:21 -0500
Subject: [PATCH] Started working on client-server communication; so far, I can
 send the position of client to server, and vice-versa

---
 main.cpp | 35 +++++++++++++++++++++++++----------
 1 file changed, 25 insertions(+), 10 deletions(-)

diff --git a/main.cpp b/main.cpp
index 176894d..bef06a8 100644
--- a/main.cpp
+++ b/main.cpp
@@ -2,6 +2,7 @@
 #include <cmath>
 #include <cstring>
 #include <ctime>
+#include <sstream>
 #include "includes/raylib-cpp/raylib-cpp.hpp"
 #include "includes/paddle.hpp"
 #include "includes/ball.hpp"
@@ -191,14 +192,17 @@ int main(int argc, char** argv) {
 	SetTraceLogLevel(LOG_NONE);
 	raylib::Window window = raylib::Window(WIDTH, HEIGHT, "Pong");
 	window.ClearBackground(BLACK);
-	SetTargetFPS(60);
+	SetTargetFPS(5);
 	SetExitKey(KEY_Q);
 	std::string points_str = std::string("0\t\t0");
 	bool game_started = false;
 	srand(std::time(NULL));
 
-	/* Variable to store the response given by the other player */
+	/* Variables to store the response given by the other player */
 	std::string response;
+	std::istringstream response_stream;
+	/* Vector to store peer paddle position */
+	raylib::Vector2 peer_pos;
 
 	/* Instantiate Paddle and Ball objects */
 	Paddle pad1 = Paddle(10, (HEIGHT / 2) - (RECT_H / 2), RECT_W, RECT_H);
@@ -233,15 +237,26 @@ int main(int argc, char** argv) {
 		}
 
 		if (game_started) {
-			/* Receive response from the other machine, if the game is in multiplayer mode */
-			response = "";
-			if (type.mode != M_SINGLE) {
-				#ifdef DEBUG
-					response = "";
-				#else
-				std::string response = type.netsock->recvAll();
-				#endif
+
+			/* Make the players send their position to the other player (The server provides authoritative information on the position of the ball.
+			The 'P' here indicates that this line provides paddle information. */
+			if (type.mode == M_SERVER) {
+				type.netsock->sendAll("P" + std::to_string(pad1.getRect().x) + " " + std::to_string(pad1.getRect().y));
+			}
+			if (type.mode == M_CLIENT) {
+				type.netsock->sendAll("P" + std::to_string(pad2.getRect().x) + " " + std::to_string(pad2.getRect().y));
+			}
+		
+			/* Create a stream from the response of the server, and use that to create the vector of peer position */
+			response = type.netsock->recvAll();
+			if (response[0] == 'P') {
+				/* Create a stream, excluding the first character */
+				response_stream = std::istringstream(response.substr(1));
+				response_stream >> peer_pos.x >> peer_pos.y;
+				std::cout << "X position of peer is: " << peer_pos.x << " Y position is: " << peer_pos.y << std::endl;
 			}
+			
+			/* When updating the paddle positions, update the peer paddle's positions based on the vector set earlier */
 
 			std::string to_send = "";
 			/* Update paddle velocity */