diff --git a/linux-utils/check-includes.sh b/linux-utils/check-includes.sh
index c393cc9..efc06f3 100755
--- a/linux-utils/check-includes.sh
+++ b/linux-utils/check-includes.sh
@@ -4,7 +4,7 @@ SOURCEPATH=../source/
 
 for i in "$SOURCEPATH"/*.cpp
 do
-    include-what-you-use -D DEBUG -D VERBOSE -std=c++14 -Wall "$i"
+    include-what-you-use -D DEBUG -D VERBOSE -std=c++20 -Wall "$i"
     read -p "Presiona cualquier tecla para continuar..."
     clear
 done
diff --git a/source/animated_sprite.cpp b/source/animated_sprite.cpp
index 1a0f50b..773ffc0 100644
--- a/source/animated_sprite.cpp
+++ b/source/animated_sprite.cpp
@@ -37,7 +37,7 @@ AnimatedFile loadAnimationFromFile(std::shared_ptr<Texture> texture, std::string
 				buffer.counter = 0;
 				buffer.current_frame = 0;
 				buffer.completed = false;
-				buffer.name = "";
+				buffer.name.clear();
 				buffer.speed = 5;
 				buffer.loop = 0;
 				buffer.frames.clear();
@@ -159,18 +159,15 @@ AnimatedFile loadAnimationFromFile(std::shared_ptr<Texture> texture, std::string
 
 // Constructor
 AnimatedSprite::AnimatedSprite(std::shared_ptr<Texture> texture, const std::string &file, std::vector<std::string> *buffer)
-	: MovingSprite(texture)
+	: MovingSprite(texture),
+	  current_animation_(0)
 {
 	// Carga las animaciones
-	if (file != "")
+	if (!file.empty())
 	{
 		AnimatedFile as = loadAnimationFromFile(texture, file);
 
 		// Copia los datos de las animaciones
-		/*for (auto animation : as.animations)
-		{
-			animations_.push_back(animation);
-		}*/
 		std::copy(as.animations.begin(), as.animations.end(), std::back_inserter(animations_));
 	}
 
@@ -178,18 +175,13 @@ AnimatedSprite::AnimatedSprite(std::shared_ptr<Texture> texture, const std::stri
 	{
 		loadFromVector(buffer);
 	}
-
-	// Inicializa variables
-	current_animation_ = 0;
 }
 
 // Constructor
 AnimatedSprite::AnimatedSprite(const AnimatedFile *animation)
-	: MovingSprite(animation->texture)
+	: MovingSprite(animation->texture),
+	  current_animation_(0)
 {
-	// Inicializa variables
-	current_animation_ = 0;
-
 	// Copia los datos de las animaciones
 	std::copy(animation->animations.begin(), animation->animations.end(), std::back_inserter(animations_));
 }
@@ -366,7 +358,7 @@ bool AnimatedSprite::loadFromVector(std::vector<std::string> *source)
 			buffer.counter = 0;
 			buffer.current_frame = 0;
 			buffer.completed = false;
-			buffer.name = "";
+			buffer.name.clear();
 			buffer.speed = 5;
 			buffer.loop = 0;
 			buffer.frames.clear();
diff --git a/source/animated_sprite.h b/source/animated_sprite.h
index 8c98d7d..603a822 100644
--- a/source/animated_sprite.h
+++ b/source/animated_sprite.h
@@ -37,7 +37,7 @@ protected:
 
 public:
     // Constructor
-    explicit AnimatedSprite(std::shared_ptr<Texture> texture = nullptr, const std::string &file = "", std::vector<std::string> *buffer = nullptr);
+    explicit AnimatedSprite(std::shared_ptr<Texture> texture = nullptr, const std::string &file = std::string(), std::vector<std::string>* buffer = nullptr);
     explicit AnimatedSprite(const AnimatedFile *animation);
 
     // Destructor
diff --git a/source/director.cpp b/source/director.cpp
index 163d1cf..32dd598 100644
--- a/source/director.cpp
+++ b/source/director.cpp
@@ -340,7 +340,7 @@ bool Director::setFileList()
 #ifdef MACOS_BUNDLE
 	const std::string prefix = "/../Resources";
 #else
-	const std::string prefix = "";
+	const std::string prefix;
 #endif
 
 	// Ficheros de configuración
@@ -490,7 +490,7 @@ void Director::checkProgramArguments(int argc, char *argv[])
 	executable_path_ = argv[0];
 
 	// Valores por defecto
-	param_file_argument_ = "";
+	param_file_argument_.clear();
 
 	// Comprueba el resto de parametros
 	for (int i = 1; i < argc; ++i)
diff --git a/source/game.cpp b/source/game.cpp
index 23250b1..5afb464 100644
--- a/source/game.cpp
+++ b/source/game.cpp
@@ -2169,7 +2169,7 @@ void Game::renderMessages()
 	if (stage_bitmap_counter_ < STAGE_COUNTER)
 	{
 		const auto stage_number = balloon_formations_->getStage(current_stage_).number;
-		std::string text = "";
+		std::string text;
 
 		if (stage_number == 10)
 		{ // Ultima fase
diff --git a/source/hiscore_table.cpp b/source/hiscore_table.cpp
index ec1fe02..1fdb6f7 100644
--- a/source/hiscore_table.cpp
+++ b/source/hiscore_table.cpp
@@ -129,7 +129,7 @@ void HiScoreTable::fillTexture()
 		const auto score = format(options.game.hi_score_table[i].score);
 		const auto score_lenght = score.size();
 		const auto num_dots = 25 - name_lenght - score_lenght;
-		std::string dots = "";
+		std::string dots;
 		for (int j = 0; j < (int)num_dots; ++j)
 		{
 			dots = dots + ".";
@@ -255,7 +255,7 @@ std::string HiScoreTable::format(int number)
 	const std::string score = std::to_string(number);
 
 	auto index = (int)score.size() - 1;
-	std::string result = "";
+	std::string result;
 	auto i = 0;
 	while (index >= 0)
 	{
diff --git a/source/notify.cpp b/source/notify.cpp
index f5c7ab9..3de069b 100644
--- a/source/notify.cpp
+++ b/source/notify.cpp
@@ -147,18 +147,19 @@ void Notify::clearFinishedNotifications()
 void Notify::showText(std::string text1, std::string text2, int icon)
 {
     // Cuenta el número de textos a mostrar
-    const int numTexts = (text1 != "") + (text2 != "");
+    const int numTexts = !text1.empty() + !text2.empty();
 
     // Si no hay texto, acaba
     if (numTexts == 0)
     {
         return;
     }
+    
     // Si solo hay un texto, lo coloca en la primera variable
-    else if (numTexts == 1)
+    if (numTexts == 1)
     {
-        text1 = text1 + text2;
-        text2 = "";
+        text1 += text2;
+        text2.clear();
     }
 
     // Si las notificaciones no se apilan, elimina las anteriores
diff --git a/source/notify.h b/source/notify.h
index c6c6187..75d4eb2 100644
--- a/source/notify.h
+++ b/source/notify.h
@@ -89,7 +89,7 @@ public:
 	void update();
 
 	// Muestra una notificación de texto por pantalla;
-	void showText(std::string text1 = "", std::string text2 = "", int icon = -1);
+	void showText(std::string text1 = std::string(), std::string text2 = std::string(), int icon = -1);
 
 	// Indica si hay notificaciones activas
 	bool active();
diff --git a/source/options.cpp b/source/options.cpp
index dc258be..53194e7 100644
--- a/source/options.cpp
+++ b/source/options.cpp
@@ -393,7 +393,7 @@ bool setOptions(std::string var, const std::string &value)
 	}
 
 	// Lineas vacias o que empiezan por comentario
-	else if (var == "" || var.substr(0, 1) == "#")
+	else if (var.empty() || var.starts_with("#"))
 	{
 	}
 
diff --git a/source/player.cpp b/source/player.cpp
index 12adf2d..7f10f9b 100644
--- a/source/player.cpp
+++ b/source/player.cpp
@@ -35,7 +35,7 @@ Player::Player(int id, float x, int y, bool demo, SDL_Rect *play_area, std::vect
 	demo_ = demo;
 	status_playing_ = PlayerStatus::WAITING;
 	scoreboard_panel_ = 0;
-	name_ = "";
+	name_.clear();
 	setRecordName(enter_name_->getName());
 	init();
 }
diff --git a/source/scoreboard.cpp b/source/scoreboard.cpp
index 34b069e..668d509 100644
--- a/source/scoreboard.cpp
+++ b/source/scoreboard.cpp
@@ -44,8 +44,8 @@ Scoreboard::Scoreboard(SDL_Renderer *renderer)
 	// Inicializa variables
 	for (int i = 0; i < SCOREBOARD_MAX_PANELS; ++i)
 	{
-		name_[i] = "";
-		record_name_[i] = "";
+		name_[i].clear();
+		record_name_[i].clear();
 		selector_pos_[i] = 0;
 		score_[i] = 0;
 		mult_[i] = 0;
@@ -54,7 +54,7 @@ Scoreboard::Scoreboard(SDL_Renderer *renderer)
 	stage_ = 1;
 	hi_score_ = 0;
 	power_ = 0;
-	hi_score_name_ = "";
+	hi_score_name_.clear();
 	color_ = {0, 0, 0};
 	rect_ = {0, 0, 320, 40};
 	panel_[SCOREBOARD_LEFT_PANEL].mode = ScoreboardMode::SCORE;
diff --git a/source/screen.h b/source/screen.h
index cbfdc0b..0749648 100644
--- a/source/screen.h
+++ b/source/screen.h
@@ -152,7 +152,7 @@ public:
 	void attenuate(bool value);
 
 	// Muestra una notificación de texto por pantalla;
-	void showNotification(std::string text1 = "", std::string text2 = "", int icon = -1);
+	void showNotification(std::string text1 = std::string(), std::string text2 = std::string(), int icon = -1);
 
 	// Indica si hay alguna notificación activa en pantalla
 	bool notificationsAreActive() const;
diff --git a/source/texture.cpp b/source/texture.cpp
index 5f5e96f..1e49bea 100644
--- a/source/texture.cpp
+++ b/source/texture.cpp
@@ -23,7 +23,7 @@ Texture::Texture(SDL_Renderer *renderer, std::string path)
 	palettes_.clear();
 
 	// Carga el fichero en la textura
-	if (path_ != "")
+	if (!path_.empty())
 	{
 		// Obtiene la extensión
 		const std::string extension = path_.substr(path_.find_last_of(".") + 1);
diff --git a/source/texture.h b/source/texture.h
index 23446db..c533ab0 100644
--- a/source/texture.h
+++ b/source/texture.h
@@ -49,7 +49,7 @@ private:
 
 public:
     // Constructor
-    explicit Texture(SDL_Renderer *renderer, std::string path = "");
+    explicit Texture(SDL_Renderer *renderer, std::string path = std::string());
 
     // Destructor
     ~Texture();
diff --git a/source/title.cpp b/source/title.cpp
index 7e7344f..5a170b9 100644
--- a/source/title.cpp
+++ b/source/title.cpp
@@ -330,7 +330,7 @@ void Title::swapControllers()
 	int playerControllerIndex[MAX_CONTROLLERS];
 	for (int i = 0; i < MAX_CONTROLLERS; ++i)
 	{
-		text[i] = "";
+		text[i].clear();
 		playerControllerIndex[i] = -1;
 	}
 
diff --git a/source/writer.cpp b/source/writer.cpp
index 28f234e..682762e 100644
--- a/source/writer.cpp
+++ b/source/writer.cpp
@@ -2,22 +2,19 @@
 
 // Constructor
 Writer::Writer(std::shared_ptr<Text> text)
-	: text_(text)
-{
-	// Inicializa variables
-	pos_x_ = 0;
-	pos_y_ = 0;
-	kerning_ = 0;
-	caption_ = "";
-	speed_ = 0;
-	writing_counter_ = 0;
-	index_ = 0;
-	lenght_ = 0;
-	completed_ = false;
-	enabled_ = false;
-	enabled_counter_ = 0;
-	finished_ = false;
-}
+	: text_(text),
+	  pos_x_(0),
+	  pos_y_(0),
+	  kerning_(0),
+	  caption_(std::string()),
+	  speed_(0),
+	  writing_counter_(0),
+	  index_(0),
+	  lenght_(0),
+	  completed_(false),
+	  enabled_(false),
+	  enabled_counter_(0),
+	  finished_(false) {}
 
 // Actualiza el objeto
 void Writer::update()
@@ -45,7 +42,11 @@ void Writer::update()
 		else
 		{
 			// Completado
-			enabled_counter_ > 0 ? enabled_counter_-- : finished_ = true;
+			finished_ = enabled_counter_ <= 0;
+			if (!finished_)
+			{
+				enabled_counter_--;
+			}
 		}
 	}
 }