menu_dir_select cpu usage problem fixed.

src/menu.c

@@ -1,4 +1,4 @@
-/* $Id: menu.c,v 1.13 2003/05/07 18:48:05 patty21 Exp $ */
+/* $Id: menu.c,v 1.14 2003/05/07 18:57:22 stpohle Exp $ */
 /* menu's for the game */
 
 #include <SDL.h>
@@ -400,7 +400,7 @@ char *menu_dir_select (char *title, char *path, signed char dirflags) {
 	_direntry *destart, *de;
     SDL_Event event;
     Uint8 *keys;
-	int max = 0, sel = 0, keypressed = 0, done = 0, listend = 0, liststart = 0;
+	int max = 0, sel = 0, keypressed = 0, done = 0, listend = 0, liststart = 0, oldsel = -1;
 
 	/* get the directory list and count the numbers */
 	destart = s_getdir (path);
@@ -412,8 +412,11 @@ char *menu_dir_select (char *title, char *path, signed char dirflags) {
 	
     while (done == 0 || (done == 1 && keypressed == 1)) {
 		/* do the network loop if we have to */
-		listend = menu_dir_draw (title, destart, liststart, sel);
-		SDL_Flip (gfx.screen);
+		if (oldsel != sel) {
+			listend = menu_dir_draw (title, destart, liststart, sel);
+			SDL_Flip (gfx.screen);
+			oldsel = sel;
+		}
 		
 		if (bman.gametype == GT_multi && bman.sock != -1)
 			network_loop ();