m3d (#13)

* Initial M3d Pass
* `m_bmdl` and `m_bline` left

---------

Co-authored-by: elijah-thomas774 <elijahthomas774@gmail.com>
Co-authored-by: Elijah Thomas <42302100+elijah-thomas774@users.noreply.github.com>

src/m/m3d/m_smdl.cpp

@@ -0,0 +1,35 @@
+#include <m/m3d/m3d.h>
+#include <m/m3d/m_smdl.h>
+#include <nw4r/g3d/g3d_scnmdl.h>
+#include <nw4r/g3d/g3d_scnmdlsmpl.h>
+
+namespace m3d {
+
+smdl_c::smdl_c() {}
+smdl_c::~smdl_c() {}
+
+bool smdl_c::create(nw4r::g3d::ResMdl mdl, mAllocator_c *alloc, u32 bufferOption, int nView, u32 *pSize) {
+    if (alloc == nullptr) {
+        alloc = internal::l_allocator_p;
+    }
+
+    u32 tmp;
+    if (pSize == nullptr) {
+        pSize = &tmp;
+    }
+
+    if (bufferOption != 0) {
+        mpScnLeaf = nw4r::g3d::ScnMdl::Construct(alloc, pSize, mdl, bufferOption, nView);
+    } else {
+        mpScnLeaf = nw4r::g3d::ScnMdlSimple::Construct(alloc, pSize, mdl, nView);
+    }
+
+    if (mpScnLeaf == nullptr) {
+        return false;
+    }
+    mpScnLeaf->SetPriorityDrawOpa(0x7f);
+    mpScnLeaf->SetPriorityDrawXlu(0x7f);
+    return true;
+}
+
+} // namespace m3d