clang-tidy readability

source/explosions.cpp

@@ -35,7 +35,7 @@ void Explosions::add(int x, int y, int size) {
 
 // Vacia el vector de elementos finalizados
 void Explosions::freeExplosions() {
-    if (explosions_.empty() == false) {
+    if (!explosions_.empty()) {
         for (int i = explosions_.size() - 1; i >= 0; --i) {
             if (explosions_[i]->animationIsCompleted()) {
                 explosions_.erase(explosions_.begin() + i);