From c2684e9bc6da4499a1f66a83a20a6d41a2f50091 Mon Sep 17 00:00:00 2001
From: curt <curt>
Date: Wed, 6 Aug 2003 17:13:42 +0000
Subject: [PATCH] Norman Vine:
Add commands to increase/decrease the fog visibility.
---
src/Main/fg_commands.cxx | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/src/Main/fg_commands.cxx b/src/Main/fg_commands.cxx
index d540faf40..07663dd87 100644
--- a/src/Main/fg_commands.cxx
+++ b/src/Main/fg_commands.cxx
@@ -29,6 +29,7 @@
#include "fg_init.hxx"
#include "fg_commands.hxx"
+#include "fg_props.hxx"
SG_USING_STD(string);
SG_USING_STD(ifstream);
@@ -845,7 +846,25 @@ do_replay (const SGPropertyNode * arg)
-
+static bool
+do_decrease_visability (const SGPropertyNode * arg)
+{
+ double new_value = fgGetDouble("/environment/visibility-m") * 0.9;
+ fgSetDouble("/environment/visibility-m", new_value);
+ fgDefaultWeatherValue("visibility-m", new_value);
+ globals->get_subsystem("environment")->reinit();
+}
+
+static bool
+do_increase_visability (const SGPropertyNode * arg)
+{
+ double new_value = fgGetDouble("/environment/visibility-m") * 1.1;
+ fgSetDouble("/environment/visibility-m", new_value);
+ fgDefaultWeatherValue("visibility-m", new_value);
+ globals->get_subsystem("environment")->reinit();
+}
+
+
////////////////////////////////////////////////////////////////////////
// Command setup.
////////////////////////////////////////////////////////////////////////
@@ -894,6 +913,8 @@ static struct {
{ "presets-commit", do_presets_commit },
{ "log-level", do_log_level },
{ "replay", do_replay },
+ { "decrease-visibility", do_decrease_visability },
+ { "increase-visibility", do_increase_visability },
{ 0, 0 } // zero-terminated
};