-// Some stuff needed by old code moved to here from heightmap.h
-#define GROUNDHEIGHT_NOTFOUND_SETVALUE (-10e6)
-#define GROUNDHEIGHT_VALID_MINVALUE ( -9e6)
+// Maximum hit points of a player
+#define PLAYER_MAX_HP 20
+
+// Number of different files to try to save a player to if the first fails
+// (because of a case-insensitive filesystem)
+// TODO: Use case-insensitive player names instead of this hack.
+#define PLAYER_FILE_ALTERNATE_TRIES 1000
+
+/*
+ * GUI related things
+ */
+#define LEGACY_SCALING (2./3.)
+#define DEFAULT_FONT_SIZE (13.0 / LEGACY_SCALING)
+#define DEFAULT_IMGSIZE (48.0)
+#define DEFAULT_XSPACING ((15.0 + (1.0 / 3.0)))
+#define DEFAULT_YSPACING (9.0)