build: Fix compiling with C++17 on Linux

joltphysics/joltphysics_settings.vpc

@@ -14,6 +14,8 @@ $Configuration
 		
 		// CPU feature macros, we may want to tune these before release.
 		$PreprocessorDefinitions		"$BASE;JPH_USE_SSE4_1;JPH_USE_SSE4_2;JPH_USE_LZCNT;JPH_USE_TZCNT;JPH_USE_F16C;JPH_USE_FMADD"
+
+		$GCC_ExtraCompilerFlags			"$BASE -msse4.1 -msse4.2 -mlzcnt -mf16c -mfma"
 		
 		// We DO want to comment this line out for release, AVX 1 & 2 adoption isn't reliable enough yet
 		// $EnableEnhancedInstructionSet	"Advanced Vector Extensions 2 (/arch:AVX2)"		[$DEVELOPMENT_ONLY]

vphysics_jolt/cbase.h

@@ -41,7 +41,7 @@
 #include "tier1/tier1.h"
 #include "tier1/strtools.h"
 #include "tier1/interface.h"
-#include "tier1/keyvalues.h"
+#include "tier1/KeyValues.h"
 #include "tier1/UtlStringMap.h"
 #include "tier1/utlbuffer.h"
 

vphysics_jolt/vjolt_controller_fluid.cpp

@@ -103,7 +103,14 @@ void JoltPhysicsFluidController::OnJoltPhysicsObjectDestroyed( JoltPhysicsObject
 	if ( pObject == m_pFluidObject )
 		m_pFluidObject = nullptr;
 
-	std::erase_if( m_ObjectsInShape, [pObject]( JoltPhysicsObject *pCachedObject ) { return pObject == pCachedObject; } );
+	for ( auto it = m_ObjectsInShape.begin(); it != m_ObjectsInShape.end(); it++ )
+	{
+		if ( *it == pObject )
+		{
+			m_ObjectsInShape.erase( it );
+			break;
+		}
+	}
 }
 
 //-------------------------------------------------------------------------------------------------

vphysics_jolt/vjolt_listener_contact.h

@@ -5,6 +5,11 @@
 
 struct JoltPhysicsContactPair
 {
+	JoltPhysicsContactPair( JoltPhysicsObject *pObject1, JoltPhysicsObject *pObject2 )
+		: pObject1(pObject1), pObject2(pObject2)
+	{
+	}
+
 	JoltPhysicsObject *pObject1 = nullptr;
 	JoltPhysicsObject *pObject2 = nullptr;
 };

vphysics_jolt/vjolt_objectpairhash.cpp

@@ -54,7 +54,8 @@ void JoltPhysicsObjectPairHash::RemoveObjectPair( void *pObject0, void *pObject1
 bool JoltPhysicsObjectPairHash::IsObjectPairInHash( void *pObject0, void *pObject1 )
 {
     auto pair = CreateSortedPair( pObject0, pObject1 );
-    return m_PairHashes[ GetHashArrayIndex( PointerHasher{}( pair ) ) ].contains( pair );
+    auto &pairHashes = m_PairHashes[ GetHashArrayIndex( PointerHasher{}( pair ) ) ];
+    return pairHashes.find( pair ) != pairHashes.end();
 }
 
 void JoltPhysicsObjectPairHash::RemoveAllPairsForObject( void *pObject0 )
@@ -71,7 +72,7 @@ void JoltPhysicsObjectPairHash::RemoveAllPairsForObject( void *pObject0 )
 
 bool JoltPhysicsObjectPairHash::IsObjectInHash( void *pObject0 )
 {
-    return m_Objects.contains( pObject0 );
+    return m_Objects.find( pObject0 ) != m_Objects.end();
 }
 
 //-------------------------------------------------------------------------------------------------