From dec07ab83e9ec1cb413e3e042dceb552b85ea376 Mon Sep 17 00:00:00 2001
From: mfranz <mfranz>
Date: Sun, 12 Jun 2005 19:27:20 +0000
Subject: [PATCH] leave temporary hint for the nasal init block, so that it can
 access its own data, and can distinguish itself from other instances of the
 same js driver. This property is removed after script execution. Example:

  self = props.globals.getNode(getprop("/input/joysticks/this"));
---
 src/Input/input.cxx | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/Input/input.cxx b/src/Input/input.cxx
index 799fd50e0..4f8926da5 100644
--- a/src/Input/input.cxx
+++ b/src/Input/input.cxx
@@ -466,7 +466,7 @@ FGInput::_init_joystick ()
 
       if ((named = jsmap[name])) {
         string source = named->getStringValue("source", "user defined");
-        SG_LOG(SG_INPUT, SG_INFO, "... found joystick: \"" << source << '"');
+        SG_LOG(SG_INPUT, SG_INFO, "... found joystick: " << source);
 
       } else if ((named = jsmap["default"])) {
         string source = named->getStringValue("source", "user defined");
@@ -474,7 +474,8 @@ FGInput::_init_joystick ()
             << "\"\nUsing default: \"" << source << '"');
 
       } else {
-        throw sg_throwable(string("No joystick configuration file with <name>default</name> entry found!"));
+        throw sg_throwable(string("No joystick configuration file with "
+            "<name>default</name> entry found!"));
       }
 
       js_node = js_nodes->getChild("js", i, true);
@@ -603,12 +604,17 @@ FGInput::_init_joystick ()
 void
 FGInput::_postinit_joystick()
 {
-  vector<SGPropertyNode_ptr> js = fgGetNode("/input/joysticks")->getChildren("js");
+  SGPropertyNode *js_nodes = fgGetNode("/input/joysticks");
+  vector<SGPropertyNode_ptr> js = js_nodes->getChildren("js");
   for (unsigned int i = 0; i < js.size(); i++) {
+    // leave temporary hint for the nasal init block
+    js_nodes->setStringValue("this", js[i]->getPath());
+
     vector<SGPropertyNode_ptr> nasal = js[i]->getChildren("nasal");
     for (unsigned int j = 0; j < nasal.size(); j++)
       ((FGNasalSys*)globals->get_subsystem("nasal"))->handleCommand(nasal[j]);
   }
+  js_nodes->removeChild("this", 0);
 }