diff --git a/source/utils.cpp b/source/utils.cpp
index 50b85d3..38c66ab 100644
--- a/source/utils.cpp
+++ b/source/utils.cpp
@@ -3,6 +3,7 @@
 #include <algorithm> // for max, min
 #include <cctype>    // for isspace
 #include <iterator>  // for distance
+#include <cmath>
 struct JA_Music_t;   // lines 3-3
 struct JA_Sound_t;   // lines 4-4
 
@@ -309,4 +310,15 @@ std::string trim(const std::string &str)
     } while (std::distance(start, end) > 0 && std::isspace(*end));
 
     return std::string(start, end + 1);
+}
+
+// Función de suavizado
+double easeOutQuint(double t)
+{
+    return 1 - std::pow(1 - t, 5);
+}
+
+// Función de suavizado
+double easeInOutSine(double t) {
+    return -0.5 * (std::cos(M_PI * t) - 1);
 }
\ No newline at end of file
diff --git a/source/utils.h b/source/utils.h
index 98b1729..54ea480 100644
--- a/source/utils.h
+++ b/source/utils.h
@@ -305,6 +305,12 @@ color_t DarkenColor(color_t color, int amount);
 // Quita los espacioes en un string
 std::string trim(const std::string &str);
 
+// Función de suavizado
+double easeOutQuint(double t);
+
+// Función de suavizado
+double easeInOutSine(double t);
+
 // Colores
 extern const color_t bgColor;
 extern const color_t noColor;