delta-time: animated_sprite.cpp

source/animated_sprite.cpp

@@ -43,6 +43,10 @@ auto loadAnimationsFromFile(const std::string& file_path) -> AnimationsFileBuffe
     std::vector<std::string> buffer;
     std::string line;
     while (std::getline(input_stream, line)) {
+        // Eliminar caracteres de retorno de carro (\r) al final de la línea
+        if (!line.empty() && line.back() == '\r') {
+            line.pop_back();
+        }
         if (!line.empty()) {
             buffer.push_back(line);
         }
@@ -82,7 +86,7 @@ auto AnimatedSprite::getAnimationIndex(const std::string& name) -> int {
     return -1;
 }
 
-// Calcula el frame correspondiente a la animación
+// Calcula el frame correspondiente a la animación (frame-based)
 void AnimatedSprite::animate() {
     if (animations_[current_animation_].speed == 0 || animations_[current_animation_].paused) {
         return;
@@ -112,6 +116,39 @@ void AnimatedSprite::animate() {
     }
 }
 
+// Calcula el frame correspondiente a la animación (time-based)
+void AnimatedSprite::animate(float deltaTime) {
+    if (animations_[current_animation_].speed == 0 || animations_[current_animation_].paused) {
+        return;
+    }
+
+    // Convertir speed (frames) a tiempo: speed frames = speed/60 segundos a 60fps
+    float frameTime = static_cast<float>(animations_[current_animation_].speed) / 60.0f;
+    
+    // Acumular tiempo transcurrido
+    animations_[current_animation_].time_accumulator += deltaTime;
+    
+    // Verificar si es momento de cambiar frame
+    if (animations_[current_animation_].time_accumulator >= frameTime) {
+        animations_[current_animation_].time_accumulator -= frameTime;
+        animations_[current_animation_].current_frame++;
+        
+        // Si alcanza el final de la animación
+        if (animations_[current_animation_].current_frame >= animations_[current_animation_].frames.size()) {
+            if (animations_[current_animation_].loop == -1) {  // Si no hay loop, deja el último frame
+                animations_[current_animation_].current_frame = animations_[current_animation_].frames.size() - 1;
+                animations_[current_animation_].completed = true;
+            } else {  // Si hay loop, vuelve al frame indicado
+                animations_[current_animation_].time_accumulator = 0.0f;
+                animations_[current_animation_].current_frame = animations_[current_animation_].loop;
+            }
+        }
+        
+        // Actualizar el sprite clip
+        updateSpriteClip();
+    }
+}
+
 // Comprueba si ha terminado la animación
 auto AnimatedSprite::animationIsCompleted() -> bool {
     return animations_[current_animation_].completed;
@@ -126,10 +163,12 @@ void AnimatedSprite::setCurrentAnimation(const std::string& name, bool reset) {
         if (reset) {
             animations_[current_animation_].current_frame = 0;
             animations_[current_animation_].counter = 0;
+            animations_[current_animation_].time_accumulator = 0.0f;
             animations_[current_animation_].completed = false;
         } else {
             animations_[current_animation_].current_frame = std::min(animations_[OLD_ANIMATION].current_frame, animations_[current_animation_].frames.size() - 1);
             animations_[current_animation_].counter = animations_[OLD_ANIMATION].counter;
+            animations_[current_animation_].time_accumulator = animations_[OLD_ANIMATION].time_accumulator;
             animations_[current_animation_].completed = animations_[OLD_ANIMATION].completed;
         }
         updateSpriteClip();
@@ -145,26 +184,35 @@ void AnimatedSprite::setCurrentAnimation(int index, bool reset) {
         if (reset) {
             animations_[current_animation_].current_frame = 0;
             animations_[current_animation_].counter = 0;
+            animations_[current_animation_].time_accumulator = 0.0f;
             animations_[current_animation_].completed = false;
         } else {
             animations_[current_animation_].current_frame = std::min(animations_[OLD_ANIMATION].current_frame, animations_[current_animation_].frames.size());
             animations_[current_animation_].counter = animations_[OLD_ANIMATION].counter;
+            animations_[current_animation_].time_accumulator = animations_[OLD_ANIMATION].time_accumulator;
             animations_[current_animation_].completed = animations_[OLD_ANIMATION].completed;
         }
         updateSpriteClip();
     }
 }
 
-// Actualiza las variables del objeto
+// Actualiza las variables del objeto (frame-based)
 void AnimatedSprite::update() {
     animate();
     MovingSprite::update();
 }
 
+// Actualiza las variables del objeto (time-based)
+void AnimatedSprite::update(float deltaTime) {
+    animate(deltaTime);
+    MovingSprite::update(deltaTime);
+}
+
 // Reinicia la animación
 void AnimatedSprite::resetAnimation() {
     animations_[current_animation_].current_frame = 0;
     animations_[current_animation_].counter = 0;
+    animations_[current_animation_].time_accumulator = 0.0f;
     animations_[current_animation_].completed = false;
     animations_[current_animation_].paused = false;
     updateSpriteClip();

source/animated_sprite.h

@@ -21,11 +21,12 @@ struct Animation {
 
         std::string name;               // Nombre de la animación
         std::vector<SDL_FRect> frames;  // Frames que componen la animación
-        int speed{DEFAULT_SPEED};       // Velocidad de reproducción
+        int speed{DEFAULT_SPEED};       // Velocidad de reproducción (frame-based)
         int loop{0};                    // Frame de vuelta al terminar (-1 para no repetir)
         bool completed{false};          // Indica si la animación ha finalizado
         size_t current_frame{0};        // Frame actual en reproducción
-        int counter{0};                 // Contador para la animación
+        int counter{0};                 // Contador para la animación (frame-based)
+        float time_accumulator{0.0f};   // Acumulador de tiempo para animaciones time-based
         bool paused{false};             // La animación no avanza
 
         Animation() = default;
@@ -55,7 +56,8 @@ class AnimatedSprite : public MovingSprite {
         ~AnimatedSprite() override = default;
 
         // --- Métodos principales ---
-        void update() override;  // Actualiza la animación
+        void update() override;              // Actualiza la animación (frame-based)
+        void update(float deltaTime);        // Actualiza la animación (time-based)
 
         // --- Control de animaciones ---
         void setCurrentAnimation(const std::string& name = "default", bool reset = true);                          // Establece la animación por nombre
@@ -78,7 +80,8 @@ class AnimatedSprite : public MovingSprite {
         int current_animation_ = 0;                               // Índice de la animación activa
 
         // --- Métodos internos ---
-        void animate();                                                                                                               // Calcula el frame correspondiente a la animación
+        void animate();                                                                                                               // Calcula el frame correspondiente a la animación (frame-based)
+        void animate(float deltaTime);                                                                                                // Calcula el frame correspondiente a la animación (time-based)
         void loadFromAnimationsFileBuffer(const AnimationsFileBuffer& source);                                                        // Carga la animación desde un vector de cadenas
         void processConfigLine(const std::string& line, AnimationConfig& config);                                                     // Procesa una línea de configuración
         void updateFrameCalculations(AnimationConfig& config);                                                                        // Actualiza los cálculos basados en las dimensiones del frame