From 7812611fe658ef3f164db793612f6bc26ddedff1 Mon Sep 17 00:00:00 2001
From: Aadhavan Srinivasan <aadhavan@twomorecents.org>
Date: Fri, 8 Mar 2024 14:43:45 -0500
Subject: [PATCH] Created an implementation and header file to check the user
 input, if it is entered through the GUI

---
 check_input.cpp          | 57 ++++++++++++++++++++++++++++++++++++++++
 includes/check_input.hpp | 27 +++++++++++++++++++
 2 files changed, 84 insertions(+)
 create mode 100644 check_input.cpp
 create mode 100644 includes/check_input.hpp

diff --git a/check_input.cpp b/check_input.cpp
new file mode 100644
index 0000000..ccd3952
--- /dev/null
+++ b/check_input.cpp
@@ -0,0 +1,57 @@
+#include <iostream>
+#include "includes/easysock.hpp"
+#include "includes/connect_code.hpp"
+#include "includes/server.hpp"
+#include "includes/client.hpp"
+#include "includes/check_input.hpp"
+#include "includes/raygui/raygui.h"
+#include "includes/exception_consts.hpp"
+
+/* Display the given text, centered on the screen, as a label */
+void display_text_centered(std::string to_disp) {
+	const char* to_disp_cstr = to_disp.c_str();
+	Vector2 label_size = MeasureTextEx(GetFontDefault(), to_disp_cstr, GuiGetStyle(DEFAULT, TEXT_SIZE), GuiGetStyle(DEFAULT, TEXT_SPACING));
+	
+	BeginDrawing();
+		ClearBackground(BLACK);
+		GuiLabel(Rectangle{(GetScreenWidth()/2) - (label_size.x/2), (GetScreenHeight()/2) - (label_size.y/2), label_size.x, label_size.y}, to_disp_cstr);
+	EndDrawing();
+	
+	return;
+}
+
+GameType check_server(char* ip_text, char* port_text) {
+	GameType type;
+	std::string addr;
+	uint16_t port;
+
+	addr = std::string(ip_text);
+	port = std::stoi(std::string(port_text));
+
+	/* Check if IP is valid */
+	if (check_ip_ver(addr.data()) < 0) {
+		throw EXCEPT_INVALIDIP;
+	}
+
+	std::string code = connect_code::encode(addr, std::to_string(port));
+	display_text_centered("Your code is " + code);
+
+	/* Create server socket and wait for client to connect */
+	Server* server = new Server(4, ES_UDP, addr.data(), port);
+	server->create_socket();
+	std::cout << "Waiting for connection..." << std::endl;
+	std::string response = "";
+	char* temp_response = NULL;
+	/* Wait for the right client to connect. Since recvAll returns a char*, we need to create a temporary variable to check for NULL. */
+	do {
+		temp_response = server->recvAll();
+	} while (temp_response == NULL);
+	response = std::string(temp_response);
+
+	std::cout << "Connection received from " << server->get_peer_addr() << std::endl;
+	server->sendAll("U2");
+	type.mode = M_SERVER;
+	type.netsock = server;
+	return type;
+}
+
diff --git a/includes/check_input.hpp b/includes/check_input.hpp
new file mode 100644
index 0000000..c72bf41
--- /dev/null
+++ b/includes/check_input.hpp
@@ -0,0 +1,27 @@
+#ifndef _CHECK_INPUT_H
+#define _CHECK_INPUT_H
+
+#include "includes/sock.hpp"
+
+typedef enum {M_SINGLE, M_CLIENT, M_SERVER} Mode;
+
+/* This struct contains a Mode enum, which indicates the type of game we are
+   playing (Single player, client mode or server mode). The netsock parameter is
+   a 'Sock' object - Client and Server classes inherit from this object, so this
+   parameter can be instantiated to either a client or server, depending on the
+   game type. */
+typedef struct {
+	Mode mode;
+	Sock* netsock;
+} GameType;
+
+/* This function checks the IP address and port passed to it, and returns a struct,
+that contains information about the game mode, and contains the server socket.
+TODO - Add better error checking. */
+GameType check_server(char* ip_text, char* port_text);
+
+/* NOT IMPLEMENTED YET - This function checks the code given to it, and returns a struct
+that contains information about the game mode, and contains the client socket. */
+GameType check_client(char* code);
+
+#endif