From ff12dd11f474ef6f356b169ac69af4cf5f70647f Mon Sep 17 00:00:00 2001
From: hendricks266 <hendricks266@1a8010ca-5511-0410-912e-c29ae57300e0>
Date: Wed, 25 Nov 2015 12:08:37 +0000
Subject: [PATCH] Duke3D/Startup: Autodetect the installation path of the World
 War II GI release on Steam. Windows and Linux only for now, as there appears
 to be no OS X support.

git-svn-id: https://svn.eduke32.com/eduke32@5454 1a8010ca-5511-0410-912e-c29ae57300e0
---
 polymer/eduke32/source/common.c      | 18 ++++++++++++++++++
 polymer/eduke32/source/common_game.h |  2 ++
 2 files changed, 20 insertions(+)

diff --git a/polymer/eduke32/source/common.c b/polymer/eduke32/source/common.c
index c81669976..bee6c1bfb 100644
--- a/polymer/eduke32/source/common.c
+++ b/polymer/eduke32/source/common.c
@@ -572,6 +572,10 @@ static void G_AddSteamPaths(const char *basepath)
     Bsnprintf(buf, sizeof(buf), "%s/steamapps/common/Nam/NAM", basepath);
 #endif
     addsearchpath_user(buf, SEARCHPATH_NAM);
+
+    // WWII GI (Steam)
+    Bsnprintf(buf, sizeof(buf), "%s/steamapps/common/World War II GI/WW2GI", basepath);
+    addsearchpath_user(buf, SEARCHPATH_WW2GI);
 }
 
 // A bare-bones "parser" for Valve's KeyValues VDF format.
@@ -863,6 +867,17 @@ void G_AddSearchPaths(void)
         Bstrncpy(suffix, "/NAM", remaining);
         addsearchpath_user(buf, SEARCHPATH_NAM);
     }
+
+    // WWII GI (Steam)
+    bufsize = sizeof(buf);
+    if (G_ReadRegistryValue("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\Steam App 376750", "InstallLocation", buf, &bufsize))
+    {
+        char * const suffix = buf + bufsize - 1;
+        DWORD const remaining = sizeof(buf) - bufsize;
+
+        Bstrncpy(suffix, "/WW2GI", remaining);
+        addsearchpath_user(buf, SEARCHPATH_WW2GI);
+    }
 #endif
 }
 
@@ -872,6 +887,9 @@ void G_CleanupSearchPaths(void)
 
     if (!NAM)
         removesearchpaths_withuser(SEARCHPATH_NAM);
+
+    if (!WW2GI)
+        removesearchpaths_withuser(SEARCHPATH_WW2GI);
 }
 
 //////////
diff --git a/polymer/eduke32/source/common_game.h b/polymer/eduke32/source/common_game.h
index 9989b1389..ecf23b526 100644
--- a/polymer/eduke32/source/common_game.h
+++ b/polymer/eduke32/source/common_game.h
@@ -53,12 +53,14 @@ enum instpath_t {
     INSTPATH_3DR_DUKE3D,
     INSTPATH_3DR_ANTH,
     INSTPATH_STEAM_NAM,
+    INSTPATH_STEAM_WW2GI,
     NUMINSTPATHS
 };
 
 enum searchpathtypes_t {
     SEARCHPATH_REMOVE = 1<<0,
     SEARCHPATH_NAM    = 1<<1,
+    SEARCHPATH_WW2GI  = 1<<2,
 };
 
 typedef enum basepal_ {