build: allow to use OpenGL instead of Direct3D in Visual Studio by simply

changing a configuration variable in a file.

win32/Lol.Core.Build.props

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup Label="Configuration">
+
+    <!-- ======================================== -->
+    <!-- Global Lol Engine Configuration Settings -->
+    <!-- ======================================== -->
+
+    <!-- Use OpenGL instead of Direct3D? -->
+    <UseOpenGL>false</UseOpenGL>
+
+  </PropertyGroup>
+</Project>

win32/Lol.Core.Config.props

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="Lol.Core.Build.props" />
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration">
     <UseDebugLibraries>true</UseDebugLibraries>

win32/Lol.Core.Rules.props

@@ -35,10 +35,12 @@
     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <!-- FIXME: not for the static library! -->
-      <AdditionalDependencies Condition="'$(Platform)'=='Win32'">kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;$(SdlDeps);$(GdiDeps);$(GlDeps);$(D3d9Deps);%(AdditionalDependencies)</AdditionalDependencies>
-      <AdditionalLibraryDirectories Condition="'$(Platform)'=='Win32'">$(SdlLibs);$(GlLibs);$(D3d9Libs);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
-      <AdditionalDependencies Condition="'$(Platform)'=='x64'">kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;$(SdlDeps);$(GdiDeps);$(GlDeps);$(D3d9Deps);%(AdditionalDependencies)</AdditionalDependencies>
-      <AdditionalLibraryDirectories Condition="'$(Platform)'=='x64'">$(SdlLibs);$(GlLibs);$(D3d9Libs);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies Condition="'$(Platform)'=='Win32' Or '$(Platform)'=='x64'">kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;$(SdlDeps);$(GdiDeps);%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies Condition="'$(UseOpenGL)'=='true' And ('$(Platform)'=='Win32' Or '$(Platform)'=='x64')">$(GlDeps);%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies Condition="'$(UseOpenGL)'=='false' And ('$(Platform)'=='Win32' Or '$(Platform)'=='x64')">$(D3d9Deps);%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories Condition="'$(Platform)'=='Win32' Or '$(Platform)'=='x64'">$(SdlLibs);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories Condition="'$(UseOpenGL)'=='true' And ('$(Platform)'=='Win32' Or '$(Platform)'=='x64')">$(GlLibs);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories Condition="'$(UseOpenGL)'=='false' And ('$(Platform)'=='Win32' Or '$(Platform)'=='x64')">$(D3d9Libs);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Debug|Xbox 360'">xapilibd.lib;d3d9d.lib;d3dx9d.lib;xgraphicsd.lib;xboxkrnl.lib;xnetd.lib;xaudiod2.lib;xactd3.lib;x3daudiod.lib;xmcored.lib;xbdm.lib;vcompd.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|Xbox 360'">xapilib.lib;d3d9.lib;d3dx9.lib;xgraphics.lib;xboxkrnl.lib;xnet.lib;xaudio2.lib;xact3.lib;x3daudio.lib;xmcore.lib;vcomp.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
@@ -48,17 +50,7 @@
     </Link>
 
     <!-- FIXME: not for the static library! -->
-    <PostBuildEvent Condition="'$(Platform)'=='Win32'">
-      <Command>
-        set A=$(SdlLibs)
-        :again
-        for /f "tokens=1* delims=;" %%I in ("%A%") do (
-          if not "%%I" == "" xcopy /y /c /d "%%I"\*.dll "$(TargetDir)" &amp;&amp; set A=%%J
-          if not "%%I" == "" goto again
-        )
-      </Command>
-    </PostBuildEvent>
-    <PostBuildEvent Condition="'$(Platform)'=='x64'">
+    <PostBuildEvent Condition="'$(Platform)'=='Win32' Or '$(Platform)'=='x64'">
       <Command>
         set A=$(SdlLibs)
         :again

win32/Lol.Core.Vars.props

@@ -42,7 +42,8 @@
     <D3d9Deps Condition="'$(Configuration)'=='Release'">d3d9.lib;d3dx9.lib;xinput.lib</D3d9Deps>
     <D3d9Deps Condition="'$(Configuration)'=='Debug'">d3d9.lib;d3dx9d.lib;xinput.lib</D3d9Deps>
 
-    <Win32Defines>HAVE_SDL_H;USE_SDL;USE_GDIPLUS;USE_D3D9</Win32Defines>
+    <Win32Defines Condition="'$(UseOpenGL)'=='true'">HAVE_SDL_H;USE_SDL;USE_GDIPLUS;HAVE_GL_2X;USE_GLEW;GLEW_STATIC</Win32Defines>
+    <Win32Defines Condition="'$(UseOpenGL)'=='false'">HAVE_SDL_H;USE_SDL;USE_GDIPLUS;USE_D3D9</Win32Defines>
     <XboxDefines></XboxDefines>
   </PropertyGroup>
   <PropertyGroup />

win32/lolcore.vcxproj

@@ -31,7 +31,7 @@
     <ConfigurationType>StaticLibrary</ConfigurationType>
     <Keyword>Win32Proj</Keyword>
   </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <Import Project="Lol.Core.Config.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
@@ -57,7 +57,6 @@
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
     <Import Project="Lol.Fx.props" />
   </ImportGroup>

win32/lolengine.sln

@@ -70,6 +70,9 @@ EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "orbital", "orbital.vcxproj", "{EE203B88-44CF-4859-9D42-7A5F40FECB52}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Engine", "Engine", "{1AFD580B-98B8-4689-B661-38C41132C60E}"
+	ProjectSection(SolutionItems) = preProject
+		Lol.Core.Build.props = Lol.Core.Build.props
+	EndProjectSection
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Tools", "Tools", "{3D341D8A-E400-4B1D-BC05-B5C35487D9B5}"
 EndProject