Rework the GUI so it uses SFMLBackend by moving the SoundQuip into SFMLBackend.

gui.cpp

@@ -8,7 +8,6 @@
 #include <SFML/Audio.hpp>
 #include <nlohmann/json.hpp>
 #include <fstream>
-#include "sfmlbackend.hpp"
 #include "builder.hpp"
 
 using std::string, std::vector;
@@ -17,25 +16,6 @@ using namespace fmt;
 using namespace nlohmann;
 namespace fs = std::filesystem;
 
-void SoundQuip::load(json &data, const char *file_key) {
-  auto audio = data["audio"];
-  json::string_t file_name = audio[file_key].template get<string>();
-
-  if(!buffer.loadFromFile(file_name)) {
-    println("Failed to load sound: {} with file {}", file_key, file_name);
-  }
-
-  sound.setBuffer(buffer);
-}
-
-void SoundQuip::play() {
-  sound.play();
-}
-
-void SoundQuip::stop() {
-  sound.stop();
-}
-
 GUI::GUI() {
   std::ifstream infile(".tarpit.json");
   json data = json::parse(infile);