time-based: migrada escena Intro (dual-API a MovingSprite/SmartSprite/Writer, constants a 60Hz)

source/core/rendering/writer.cpp

@@ -35,6 +35,31 @@ void Writer::update() {
     }
 }
 
+// Time-based: avanca un caracter cada `seconds_per_char_` i un cop completat
+// es queda visible `remaining_time_s_` segons abans de finalitzar.
+void Writer::update(float dt_s) {
+    if (!enabled_) { return; }
+
+    if (!completed_) {
+        char_timer_s_ += dt_s;
+        while (char_timer_s_ >= seconds_per_char_ && index_ < length_) {
+            char_timer_s_ -= seconds_per_char_;
+            ++index_;
+        }
+        if (index_ >= length_) {
+            completed_ = true;
+        }
+    }
+
+    if (completed_) {
+        if (remaining_time_s_ <= 0.0F) {
+            finished_ = true;
+        } else {
+            remaining_time_s_ -= dt_s;
+        }
+    }
+}
+
 // Dibuja el objeto en pantalla
 void Writer::render() {
     if (enabled_) {
@@ -69,6 +94,12 @@ void Writer::setSpeed(int value) {
     writing_counter_ = value;
 }
 
+// Time-based: segons per caracter. Quan s'usa, l'update(dt) avança index.
+void Writer::setSecondsPerChar(float seconds) {
+    seconds_per_char_ = seconds;
+    char_timer_s_ = 0.0F;
+}
+
 // Establece el valor de la variable
 void Writer::setEnabled(bool value) {
     enabled_ = value;
@@ -89,6 +120,15 @@ auto Writer::getEnabledCounter() const -> int {
     return enabled_counter_;
 }
 
+// Time-based: temps que es mante visible despres de completar el text.
+void Writer::setRemainingTime(float seconds) {
+    remaining_time_s_ = seconds;
+}
+
+auto Writer::getRemainingTime() const -> float {
+    return remaining_time_s_;
+}
+
 // Centra la cadena de texto a un punto X
 void Writer::center(int x) {
     setPosX(x - (text_->lenght(caption_, kerning_) / 2));