cleanup

src/Aquarium.cpp

@@ -173,9 +173,6 @@ void Aquarium::clearCurrentFrame() {
 
 void Aquarium::drawToFrame(int y, int x, const std::string &line,
                            const std::string &colorLine) {
-  if (y < 0 || y >= height)
-    return;
-
   const size_t len = std::min(line.size(), colorLine.size());
 
   for (size_t j = 0; j < len; ++j) {

src/Bubble.cpp

@@ -18,6 +18,7 @@ void Bubble::updateFrame() {
   current_mask[0] = BUBBLE_COLOR;
 }
 
+// Waterline collision
 bool Bubble::shouldBeRemoved() const noexcept { return y < 10; }
 
 // Bubbles don't create replacements