-/* Initialize ncurses and world.wmeta on terminal screen. All struct members
- * initialize to 0, except for .screen, the newly created virtual screen .pad
- * and its .padsize (height: that of the terminal screen; width: 1 cell).
+/* Initialize world.wmeta and ncurses on terminal screen. All struct members
+ * initialize to 0 (.pad = NULL), except for .screen (= initscr()).