Treballant en la intro

source/utils.h

@@ -174,6 +174,9 @@ double easeInQuad(double t);
 double easeOutQuad(double t);
 double easeInOutSine(double t);
 double easeInOut(double t);
+double easeInOutExpo(double t);
+double easeOutBounce(double t);
+double easeOutElastic(double t);
 
 // Comprueba si una vector contiene una cadena
 bool stringInVector(const std::vector<std::string> &vec, const std::string &str);