Removed debug print statements, cleared background before drawing to screen, and added client GUI implementation

I removed a print statement that printed out every position of the ball, because it was no longer necessary.
I also added code to clear the background before drawing to the screen at the start of the game, to remove
any lingering un-erased objects. Finally, and most substantially, I finished the initial implementation of
the client-side GUI. The client should now be able to specify a connect code through the GUI, and connect
to the appropriate server.

main.cpp

@@ -152,7 +152,8 @@ GameType check_server_client(int argc, char** argv) {
 		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. */
+		/* Wait for the right client to connect. Since recvAll returns a char*, we need to create a temporary variable to check for NULL.
+		TODO - Check that the client actually sends 'GG'. */
 		do {
 			temp_response = server->recvAll();
 		} while (temp_response == NULL);
@@ -278,7 +279,7 @@ int main(int argc, char** argv) {
 			int port_label_x_size = MeasureTextEx(GetFontDefault(), port_label, font_size, font_spacing).x; // Custom size for port label, because it's long
 			bool editing_ip = false; // Indicates whether the IP address text box is being edited
 			bool editing_port = false; // Indicates whether the port text box is being edited
-			while (button_pressed == false) {
+			while (button_pressed == false || ((strlen(ip_text) == 0) || (strlen(port_text) == 0))) {
 				BeginDrawing();
 					ClearBackground(BLACK);
 					/* Label and text box for IP address */
@@ -306,6 +307,29 @@ int main(int argc, char** argv) {
 			free(ip_text);
 			free(port_text);
 		}
+		
+		if (selected_item == M_CLIENT) {
+			button_pressed = false; // Whether submit button is pressed
+			char* code_text = (char *)calloc(100, sizeof(char)); // Holds the connect code
+			const char* code_label = "Enter code:";
+			bool editing_code = false; // Indicates whether the port text box is being edited
+			while (button_pressed == false || ((strlen(code_text) == 0))) {
+				BeginDrawing();
+					ClearBackground(BLACK);
+					/* Label and text box for IP address */
+					GuiLabel(Rectangle{(WIDTH/2)-(label_size.x/2), (HEIGHT/2) - (HEIGHT/6) - label_size.y - 10, label_size.x, label_size.y}, code_label);
+					
+					if (GuiTextBox(Rectangle{(WIDTH/2) - (box_size.x/2), (HEIGHT/2) - (HEIGHT/6), box_size.x, box_size.y}, code_text, 100, editing_code)) {
+						editing_code = !editing_code;
+					}
+				
+					button_pressed = GuiButton(Rectangle{(WIDTH/2) - (box_size.x/2), (HEIGHT/2) + (HEIGHT/6), box_size.x, box_size.y}, "Connect");
+				EndDrawing();
+			}
+			
+			type = check_client(code_text);
+			free(code_text);		
+		}
 	}
 
 	/* Variable to store the response given by the other player */
@@ -324,6 +348,7 @@ int main(int argc, char** argv) {
 	Ball ball = Ball(window.GetWidth()/2, window.GetHeight()/2, CIRC_RAD, BASE_SPEED, 0);
 
 	window.BeginDrawing();
+		window.ClearBackground(BLACK);
 		pad1.draw();
 		pad2.draw();
 		ball.draw();
@@ -372,7 +397,6 @@ int main(int argc, char** argv) {
 				uint8_t* response_array = (uint8_t *)(type.netsock->recvAll());
 				if (response_array != NULL) {
 					response_data = Serial_deserialize(response_array);
-					std::cout << response_data.pad_x << "\t" << response_data.pad_y << "\t" << response_data.ball_x << "\t" << response_data.ball_y << std::endl;
 				} else {
 					/* If the response is NULL, that means it timed-out. In this case, there's no value to print */
 					std::cout << "NOTHING RECEIVED" << std::endl;