ksys/phys: Add more StaticCompound stuff, part 1

src/KingSystem/Physics/StaticCompound/physStaticCompoundMgr.cpp

@@ -0,0 +1,22 @@
+#include "KingSystem/Physics/StaticCompound/physStaticCompoundMgr.h"
+#include "KingSystem/Physics/System/physSystem.h"
+
+namespace ksys::phys {
+
+StaticCompoundMgr::StaticCompoundMgr() = default;
+
+StaticCompoundMgr::~StaticCompoundMgr() {
+    if (mGroupHandler) {
+        System::instance()->removeSystemGroupHandler(mGroupHandler);
+        mGroupHandler = nullptr;
+    }
+}
+
+bool StaticCompoundMgr::init() {
+    if (!mGroupHandler)
+        mGroupHandler = System::instance()->addSystemGroupHandler(ContactLayerType::Entity);
+
+    return true;
+}
+
+}  // namespace ksys::phys