From cc0ec0b07067af6803ac8b5d23bfd74c9b2b0386 Mon Sep 17 00:00:00 2001
From: ehofman <ehofman>
Date: Sun, 8 Jun 2003 11:19:14 +0000
Subject: [PATCH] Make it possible for FlightGear to override the fuel tank
 contents with 0.0

---
 src/FDM/JSBSim/FGTank.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/FDM/JSBSim/FGTank.cpp b/src/FDM/JSBSim/FGTank.cpp
index dd4407317..83d85744f 100644
--- a/src/FDM/JSBSim/FGTank.cpp
+++ b/src/FDM/JSBSim/FGTank.cpp
@@ -54,7 +54,7 @@ CLASS IMPLEMENTATION
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 
 FGTank::FGTank(FGConfigFile* AC_cfg)
-    : Contents(0.0)
+    : Contents(-1.0)
 {
   string token;
   
@@ -72,7 +72,7 @@ FGTank::FGTank(FGConfigFile* AC_cfg)
     else if (token == "RADIUS") *AC_cfg >> Radius;
     else if (token == "CAPACITY") *AC_cfg >> Capacity;
     else if (token == "CONTENTS") {
-        if (Contents == 0.0) *AC_cfg >> Contents;
+        if (Contents == -1.0) *AC_cfg >> Contents;
     } else cerr << "Unknown identifier: " << token << " in tank definition." << endl;
   }