From de7e4fafec992008bcc192a07ae5d1d4e96dd8d7 Mon Sep 17 00:00:00 2001
From: torcs-ng <torcs-ng@30fe4595-0a0c-4342-8851-515496e4dcbd>
Date: Mon, 6 Nov 2023 07:59:15 +0000
Subject: [PATCH] - update metar

git-svn-id: https://svn.code.sf.net/p/speed-dreams/code/trunk@9212 30fe4595-0a0c-4342-8851-515496e4dcbd

Former-commit-id: 7e1e17724c9a640efe3942d11cdb3126163b8635
Former-commit-id: 6f68334019d459740f64725a23b9b726f6567f70
---
 src/modules/racing/standardgame/racetrack.cpp |  2 +-
 .../racing/standardgame/racewebmetar.cpp      | 65 ++++++++++++++++++-
 2 files changed, 64 insertions(+), 3 deletions(-)

diff --git a/src/modules/racing/standardgame/racetrack.cpp b/src/modules/racing/standardgame/racetrack.cpp
index b81f4fff..b1fada86 100644
--- a/src/modules/racing/standardgame/racetrack.cpp
+++ b/src/modules/racing/standardgame/racetrack.cpp
@@ -757,7 +757,7 @@ reTrackInitRealWeather(void)
         else
             trackLocal->airpressure = (tdble)(webMetar->getPressure_hPa());
 
-        trackLocal->airpressure = (tdble)(trackLocal->airpressure * 100);
+        trackLocal->airpressure = (tdble)(trackLocal->airpressure);
 
         if (webMetar->getDensity_C() == WebMetarNaN)
             trackLocal->airdensity = 1.219f;
diff --git a/src/modules/racing/standardgame/racewebmetar.cpp b/src/modules/racing/standardgame/racewebmetar.cpp
index ff976103..e3f5a99a 100755
--- a/src/modules/racing/standardgame/racewebmetar.cpp
+++ b/src/modules/racing/standardgame/racewebmetar.cpp
@@ -1125,6 +1125,15 @@ bool ReWebMetar::scanPressure()
     char *m = _m;
     double factor;
     int press, i;
+    bool unitProvided = true;
+    bool valueProvided = true;
+    //_pressure = 101300.0;
+
+    if (*m == '\0')
+    {
+        _pressure = 101300.0;	// pressure not provided... assume standard pressure
+        return true;
+    }
 
     if (*m == 'A')
         factor = 3386.388640341 / 100;
@@ -1139,7 +1148,59 @@ bool ReWebMetar::scanPressure()
 
     press *= 100;
 
-    if (!strncmp(m, "//", 2))	// not spec compliant!
+    if (*m == ' ')	// ignore space
+        m++;
+
+    if (!strncmp(m, "////", 4))
+    {
+        // sensor failure... assume standard pressure
+        if (*(m - 1) == 'A')
+            press = 2992;
+        else
+            press = 1013;
+
+        m += 4;
+    }
+    else
+    {
+        if (!scanNumber(&m, &press, 2, 4))
+        {
+            valueProvided = false;
+
+            // sensor failure... assume standard pressure
+            if (*(m - 1) == 'A')
+                press = 2992;
+            else
+                press = 1013;
+        }
+    }
+
+    if (press < 100)
+    {
+        // 2-digit pressure may have further data following
+        press *= 100;
+        if (!strncmp(m, "//", 2)) 	// not spec compliant!
+            m += 2;
+        else if (scanNumber(&m, &i, 2))
+            press += i;
+    }
+
+    if (*m == ',' || *m == '=')	// ignore trailing comma, equals
+        m++;
+
+    if ((unitProvided || valueProvided) && !scanBoundary(&m))
+        return false;
+
+    // derive unit when not explicitly provided
+    if (!unitProvided)
+        factor = (press > 2000 ? 3386.388640341 / 100.0 : 100.0);
+
+    _pressure = (press * factor);
+    _m = m;
+
+    return true;
+
+    /*if (!strncmp(m, "//", 2))	// not spec compliant!
         m += 2;
     else if (scanNumber(&m, &i, 2))
         press += i;
@@ -1155,7 +1216,7 @@ bool ReWebMetar::scanPressure()
     GfLogDebug("Pressure = %.3f\n", _pressure);
     _grpcount++;
 
-    return true;
+    return true;*/
 }
 
 static const char *runway_deposit[] =