From b691b5f9114de96aeb26ae0a65dbf05194324726 Mon Sep 17 00:00:00 2001
From: Michael Meyer <me@entrez.cc>
Date: Tue, 12 Nov 2024 17:12:17 -0500
Subject: [PATCH] Add config "ifnxsleep" command

For sleeping/delaying a certain amount of time if the specified file
does not exist. Intended for use in delaying games iff no save file
exists, to ease up on the server load from start scumming (especially
automated start scumming).

Sleep 5 seconds if /path/to/file.txt does not exist:

| ifnxsleep 5 "/path/to/file.txt"
---
 config.l                  |  1 +
 dgamelaunch.h             |  3 ++-
 dgl-common.c              | 10 ++++++++++
 examples/dgamelaunch.conf |  2 ++
 4 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/config.l b/config.l
index bc06d29..6eff8ef 100644
--- a/config.l
+++ b/config.l
@@ -142,6 +142,7 @@ return		{ yylval.i = DGLCMD_RETURN;      return TYPE_DGLCMD0; }
 redraw		{ yylval.i = DGLCMD_REDRAW;     return TYPE_DGLCMD0; }
 rawprint	{ yylval.i = DGLCMD_RAWPRINT;    return TYPE_DGLCMD1; }
 sleep		{ yylval.i = DGLCMD_SLEEP;       return TYPE_DGLCMD1; }
+ifnxsleep	{ yylval.i = DGLCMD_IF_NX_SLEEP; return TYPE_DGLCMD2; }
 DEFINE		{ return TYPE_DEFINE_GAME; }
 
 
diff --git a/dgamelaunch.h b/dgamelaunch.h
index 2efebee..0402d26 100644
--- a/dgamelaunch.h
+++ b/dgamelaunch.h
@@ -83,7 +83,8 @@ typedef enum
     DGLCMD_SUBMENU,	/* submenu "foo" */
     DGLCMD_REDRAW,	/* redraw */
     DGLCMD_RETURN,	/* return */
-    DGLCMD_SLEEP        /* sleep */
+    DGLCMD_SLEEP,       /* sleep foo */
+    DGLCMD_IF_NX_SLEEP, /* ifnxsleep foo bar */
 } dglcmd_actions;
 
 typedef enum
diff --git a/dgl-common.c b/dgl-common.c
index 89a342f..aa23681 100644
--- a/dgl-common.c
+++ b/dgl-common.c
@@ -463,6 +463,16 @@ dgl_exec_cmdqueue_w(struct dg_cmdpart *queue, int game, struct dg_user *me, char
 	case DGLCMD_RETURN:
 	    return_from_submenu = 1;
 	    break;
+	case DGLCMD_IF_NX_SLEEP:
+	    if (p2) {
+		FILE *tmpfile;
+		tmpfile = fopen(p2, "r");
+		if (tmpfile) {
+		    fclose(tmpfile);
+		    break;
+		}
+	    }
+	    /* fall through if file does not exist */
 	case DGLCMD_SLEEP:
 	    if (p1) {
 		char *end;
diff --git a/examples/dgamelaunch.conf b/examples/dgamelaunch.conf
index b4276e3..187d526 100644
--- a/examples/dgamelaunch.conf
+++ b/examples/dgamelaunch.conf
@@ -146,6 +146,8 @@ default_term = "xterm"
 #   play_if_exist "foo" "file" = start game "foo", if file "file" exists.
 #   submenu "foo"      = go to submenu "foo"
 #   return             = return from submenu
+#   sleep "foo"        = sleep for "foo" seconds
+#   ifnxsleep "foo" "file" = sleep for "foo" seconds if file "file" does not exist.
 #
 #  NOTE: edit_options-command was removed. use ifnxcp and exec to simulate it.
 #
-- 
2.47.3