gradient_sized (C++): fix parameter name

include/ncpp/Plane.hh

@@ -131,9 +131,9 @@ namespace ncpp
 			return ncplane_gradient (plane, egc, attrword, ul, ur, ll, lr, ystop, xstop) != -1;
 		}
 
-		bool gradient_sized (const char* egc, uint32_t attrword, uint64_t ul, uint64_t ur, uint64_t ll, uint64_t lr, int ylen, int xstop) const noexcept
+		bool gradient_sized (const char* egc, uint32_t attrword, uint64_t ul, uint64_t ur, uint64_t ll, uint64_t lr, int ylen, int xlen) const noexcept
 		{
-			return ncplane_gradient_sized (plane, egc, attrword, ul, ur, ll, lr, ylen, xstop) != -1;
+			return ncplane_gradient_sized (plane, egc, attrword, ul, ur, ll, lr, ylen, xlen) != -1;
 		}
 
 		bool high_gradient (uint64_t ul, uint64_t ur, uint64_t ll, uint64_t lr, int ylen, int xlen) const noexcept

src/tetris/background.h

@@ -1,5 +1,4 @@
-// background is drawn to the standard plane, at the bottom.
+void DrawBackground(const std::string& s) { // drawn to the standard plane
-void DrawBackground(const std::string& s) {
   int averr;
   try{
     backg_ = std::make_unique<ncpp::Visual>(s.c_str(), &averr, 0, 0, ncpp::NCScale::Stretch);
@@ -15,8 +14,7 @@ void DrawBackground(const std::string& s) {
   backg_->get_plane()->greyscale();
 }
 
-// draw the background on the standard plane, then create a new plane for the play area.
+void DrawBoard() { // draw all fixed components of the game
-void DrawBoard() {
   DrawBackground(BackgroundFile);
   int y, x;
   stdplane_->get_dim(&y, &x);