From f22be111ae0a1b2dd51418b0790fab1c8f2f9df7 Mon Sep 17 00:00:00 2001
From: Shauren <shauren.trinity@gmail.com>
Date: Sat, 3 Dec 2022 23:30:53 +0100
Subject: Tools/vmap_extractor: Implemented new MPY2 wmo chunk

---
 src/tools/vmap4_extractor/wmo.cpp | 24 +++++++++++++++---------
 src/tools/vmap4_extractor/wmo.h   |  4 ++--
 2 files changed, 17 insertions(+), 11 deletions(-)

(limited to 'src')

diff --git a/src/tools/vmap4_extractor/wmo.cpp b/src/tools/vmap4_extractor/wmo.cpp
index fc4265cda59..85f82038da2 100644
--- a/src/tools/vmap4_extractor/wmo.cpp
+++ b/src/tools/vmap4_extractor/wmo.cpp
@@ -204,10 +204,10 @@ bool WMORoot::ConvertToVMAPRootWmo(FILE* pOutfile)
 }
 
 WMOGroup::WMOGroup(const std::string &filename) :
-    filename(filename), MOPY(nullptr), MOVX(nullptr), MOVT(nullptr), MOBA(nullptr), MobaEx(nullptr),
+    filename(filename), MPY2(nullptr), MOVX(nullptr), MOVT(nullptr), MOBA(nullptr), MobaEx(nullptr),
     hlq(nullptr), LiquEx(nullptr), LiquBytes(nullptr), groupName(0), descGroupName(0), mogpFlags(0),
     moprIdx(0), moprNItems(0), nBatchA(0), nBatchB(0), nBatchC(0), fogIdx(0),
-    groupLiquid(0), groupWMOID(0), mopy_size(0), moba_size(0), LiquEx_size(0),
+    groupLiquid(0), groupWMOID(0), moba_size(0), LiquEx_size(0),
     nVertices(0), nTriangles(0), liquflags(0)
 {
     memset(bbcorn1, 0, sizeof(bbcorn1));
@@ -262,10 +262,17 @@ bool WMOGroup::open(WMORoot* rootWMO)
         }
         else if (!strcmp(fourcc,"MOPY"))
         {
-            MOPY = new char[size];
-            mopy_size = size;
+            MPY2 = std::make_unique<uint16[]>(size);
+            std::unique_ptr<uint8[]> MOPY = std::make_unique<uint8[]>(size);
             nTriangles = (int)size / 2;
-            f.read(MOPY, size);
+            f.read(MOPY.get(), size);
+            std::copy_n(MOPY.get(), size, MPY2.get());
+        }
+        else if (!strcmp(fourcc,"MPY2"))
+        {
+            MPY2 = std::make_unique<uint16[]>(size / 2);
+            nTriangles = (int)size / 4;
+            f.read(MPY2.get(), size);
         }
         else if (!strcmp(fourcc,"MOVI"))
         {
@@ -440,15 +447,15 @@ int WMOGroup::ConvertToVMAPGroupWmo(FILE* output, bool preciseVectorData)
         delete [] MobaEx;
 
         //-------INDX------------------------------------
-        //-------MOPY--------
+        //-------MOPY/MPY2--------
         std::unique_ptr<uint32[]> MovxEx = std::make_unique<uint32[]>(nTriangles*3); // "worst case" size...
         std::unique_ptr<int32[]> IndexRenum = std::make_unique<int32[]>(nVertices);
         std::fill_n(IndexRenum.get(), nVertices, -1);
         for (int i=0; i<nTriangles; ++i)
         {
             // Skip no collision triangles
-            bool isRenderFace = (MOPY[2 * i] & WMO_MATERIAL_RENDER) && !(MOPY[2 * i] & WMO_MATERIAL_DETAIL);
-            bool isCollision = MOPY[2 * i] & WMO_MATERIAL_COLLISION || isRenderFace;
+            bool isRenderFace = (MPY2[2 * i] & WMO_MATERIAL_RENDER) && !(MPY2[2 * i] & WMO_MATERIAL_DETAIL);
+            bool isCollision = MPY2[2 * i] & WMO_MATERIAL_COLLISION || isRenderFace;
 
             if (!isCollision)
                 continue;
@@ -563,7 +570,6 @@ bool WMOGroup::ShouldSkip(WMORoot const* root) const
 
 WMOGroup::~WMOGroup()
 {
-    delete [] MOPY;
     delete [] MOVT;
     delete [] MOBA;
     delete hlq;
diff --git a/src/tools/vmap4_extractor/wmo.h b/src/tools/vmap4_extractor/wmo.h
index 5ba69c8b49b..4e149c02422 100644
--- a/src/tools/vmap4_extractor/wmo.h
+++ b/src/tools/vmap4_extractor/wmo.h
@@ -124,7 +124,7 @@ private:
 public:
     // MOGP
 
-    char* MOPY;
+    std::unique_ptr<uint16[]> MPY2;
     std::unique_ptr<uint32[]> MOVX;
     float* MOVT;
     uint16* MOBA;
@@ -142,7 +142,7 @@ public:
     uint16 nBatchB;
     uint32 nBatchC, fogIdx, groupLiquid, groupWMOID;
 
-    int mopy_size, moba_size;
+    int moba_size;
     int LiquEx_size;
     unsigned int nVertices; // number when loaded
     int nTriangles; // number when loaded
-- 
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