III: Fix SetupBigBuilding for cranes, bright windows and others

SilentPatchIII/ModelInfoIII.cpp

@@ -0,0 +1,8 @@
+#include "StdAfx.h"
+#include "ModelInfoIII.h"
+
+void CSimpleModelInfo::SetNearDistanceForLOD_SilentPatch()
+{
+	// 100.0f for real LOD's, 0.0f otherwise
+	m_lodDistances[2] = _strnicmp( m_name, "lod", 3 ) == 0 ? 100.0f : 0.0f;
+}

SilentPatchIII/ModelInfoIII.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <cstdint>
+
+class CSimpleModelInfo
+{
+private:
+	void*	__vmt;
+	char	m_name[24];
+	uint8_t __pad[32];
+	float	m_lodDistances[3];
+	uint8_t	__pad2[4];
+
+public:
+	void	SetNearDistanceForLOD_SilentPatch();
+};
+
+static_assert(sizeof(CSimpleModelInfo) == 0x4C, "Wrong size: CSimpleModelInfo");

SilentPatchIII/SilentPatchIII.cpp

@@ -6,6 +6,7 @@
 #include "Common.h"
 #include "Common_ddraw.h"
 #include "VehicleIII.h"
+#include "ModelInfoIII.h"
 
 #include <memory>
 #include <Shlwapi.h>
@@ -611,6 +612,23 @@ void InjectDelayedPatches_III_Common( bool bHasDebugMenu, const wchar_t* wcModul
 			InjectHook( match.get<void>(), UsesSirenSwitching_FbiCar );
 		}
 	}
+
+
+	// Corrected CSimpleModelInfo::SetupBigBuilding minimum draw distance for big buildings without a matching model
+	// Fixes cranes in Portland and bright windows in the city
+	// By aap
+	{
+		auto setupMinDist = pattern( "C7 43 44 00 00 C8 42" ).count_hint(1);
+		if ( setupMinDist.size() == 1 ) // In case of another mod or second instance of SP changing it
+		{
+			auto match = setupMinDist.get_one();
+
+			// mov ecx, ebx
+			// call CSimpleModelInfo::SetNearDistanceForLOD
+			Patch( match.get<void>(), { 0x89, 0xD9 } );
+			InjectHook( match.get<void>( 2 ), &CSimpleModelInfo::SetNearDistanceForLOD_SilentPatch, PATCH_CALL );
+		}
+	}
 }
 
 void InjectDelayedPatches_III_Common()

SilentPatchIII/SilentPatchIII.vcxproj

@@ -37,6 +37,7 @@
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Master|Win32'">NotUsing</PrecompiledHeader>
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">NotUsing</PrecompiledHeader>
     </ClCompile>
+    <ClCompile Include="ModelInfoIII.cpp" />
     <ClCompile Include="SilentPatchIII.cpp" />
     <ClCompile Include="StdAfxIII.cpp">
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Create</PrecompiledHeader>
@@ -56,6 +57,7 @@
     <ClInclude Include="..\SilentPatch\Utils\MemoryMgr.GTA.h" />
     <ClInclude Include="..\SilentPatch\Utils\MemoryMgr.h" />
     <ClInclude Include="..\SilentPatch\Utils\Patterns.h" />
+    <ClInclude Include="ModelInfoIII.h" />
     <ClInclude Include="VehicleIII.h" />
   </ItemGroup>
   <ItemGroup>

SilentPatchIII/SilentPatchIII.vcxproj.filters

@@ -45,6 +45,9 @@
     <ClCompile Include="..\SilentPatch\RWGTA.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="ModelInfoIII.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\SilentPatch\Timer.h">
@@ -83,6 +86,9 @@
     <ClInclude Include="..\SilentPatch\Maths.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="ModelInfoIII.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="..\SilentPatch\SilentPatch.rc">