From e774e0e8ad18ff8a5877ebc923ae1b280e06ec67 Mon Sep 17 00:00:00 2001
From: Sergio Valor <jaildesigner@gmail.com>
Date: Sun, 17 Aug 2025 17:21:03 +0200
Subject: [PATCH] modificat el efecte de invulnerabilitat per a que vaja
 menguant

---
 source/player.cpp | 31 +++++++++++++++++++++++--------
 source/player.h   | 13 +++++++------
 source/sprite.h   |  2 +-
 3 files changed, 31 insertions(+), 15 deletions(-)

diff --git a/source/player.cpp b/source/player.cpp
index 2358fd2..13a7a77 100644
--- a/source/player.cpp
+++ b/source/player.cpp
@@ -778,15 +778,30 @@ void Player::setInvulnerable(bool value) {
 
 // Monitoriza el estado
 void Player::updateInvulnerable() {
-    if (playing_state_ == State::PLAYING) {
-        if (invulnerable_) {
-            if (invulnerable_counter_ > 0) {
-                --invulnerable_counter_;
-                invulnerable_counter_ % 8 > 3 ? player_sprite_->setActiveTexture(coffees_) : player_sprite_->setActiveTexture(3);
-            } else {
-                setInvulnerable(false);
-                player_sprite_->setActiveTexture(coffees_);
+    if (playing_state_ == State::PLAYING && invulnerable_) {
+        if (invulnerable_counter_ > 0) {
+            --invulnerable_counter_;
+            
+            // Frecuencia fija de parpadeo (como el original)
+            constexpr int blink_speed = 8;
+            
+            // Calcula proporción decreciente: menos textura blanca hacia el final
+            // Al inicio: 50-50, hacia el final: 70-30 (menos blanco)
+            float progress = 1.0f - (static_cast<float>(invulnerable_counter_) / INVULNERABLE_COUNTER);
+            int white_frames = static_cast<int>((0.5f - progress * 0.2f) * blink_speed);  
+            
+            // Alterna entre texturas con proporción variable
+            bool should_show_invulnerable = (invulnerable_counter_ % blink_speed) < white_frames;
+            size_t target_texture = should_show_invulnerable ? INVULNERABLE_TEXTURE : coffees_;
+            
+            // Solo cambia textura si es diferente (optimización)
+            if (player_sprite_->getActiveTexture() != target_texture) {
+                player_sprite_->setActiveTexture(target_texture);
             }
+        } else {
+            // Fin de invulnerabilidad
+            setInvulnerable(false);
+            player_sprite_->setActiveTexture(coffees_);
         }
     }
 }
diff --git a/source/player.h b/source/player.h
index a8c15ba..2a979c7 100644
--- a/source/player.h
+++ b/source/player.h
@@ -193,12 +193,13 @@ class Player {
 
     private:
         // --- Constantes ---
-        static constexpr int POWERUP_COUNTER = 1500;      // Duración del estado PowerUp
-        static constexpr int INVULNERABLE_COUNTER = 200;  // Duración del estado invulnerable
-        static constexpr float BASE_SPEED = 1.5F;         // Velocidad base del jugador
-        static constexpr int COOLING_DURATION = 50;
-        static constexpr int COOLING_COMPLETE = 0;
-        static constexpr int WAITING_COUNTER = 1000;
+        static constexpr int POWERUP_COUNTER = 1500;       // Duración del estado PowerUp
+        static constexpr int INVULNERABLE_COUNTER = 200;   // Duración del estado invulnerable
+        static constexpr size_t INVULNERABLE_TEXTURE = 3;  // Textura usada durante invulnerabilidad
+        static constexpr float BASE_SPEED = 1.5F;          // Velocidad base del jugador
+        static constexpr int COOLING_DURATION = 50;        // Duración del enfriamiento tras disparar
+        static constexpr int COOLING_COMPLETE = 0;         // Valor que indica enfriamiento completado
+        static constexpr int WAITING_COUNTER = 1000;       // Tiempo de espera en estado de espera
 
         // --- Objetos y punteros ---
         std::unique_ptr<AnimatedSprite> player_sprite_;      // Sprite para dibujar el jugador
diff --git a/source/sprite.h b/source/sprite.h
index 0624543..e3edaa1 100644
--- a/source/sprite.h
+++ b/source/sprite.h
@@ -56,7 +56,7 @@ class Sprite {
         void setTexture(std::shared_ptr<Texture> texture) { textures_.at(texture_index_) = std::move(texture); }
         void addTexture(const std::shared_ptr<Texture>& texture) { textures_.push_back(texture); }
         auto setActiveTexture(size_t index) -> bool;                                           // Cambia la textura activa por índice
-        [[nodiscard]] auto getActiveTextureIndex() const -> size_t { return texture_index_; }  // Obtiene el índice de la textura activa
+        [[nodiscard]] auto getActiveTexture() const -> size_t { return texture_index_; }       // Alias para getActiveTextureIndex
         [[nodiscard]] auto getTextureCount() const -> size_t { return textures_.size(); }      // Obtiene el número total de texturas
 
     protected: