Fixed a couple things related to attempting to create projects for demo builds

src/Core/GameProject/DependencyListBuilders.cpp

@@ -113,6 +113,7 @@ void CCharacterUsageMap::DebugPrintContents()
 // ************ PROTECTED ************
 void CCharacterUsageMap::ParseDependencyNode(IDependencyNode *pNode)
 {
+    if (!pNode) return;
     EDependencyNodeType Type = pNode->Type();
 
     if (Type == EDependencyNodeType::CharacterProperty)
@@ -271,6 +272,7 @@ void CPackageDependencyListBuilder::AddDependency(CResourceEntry *pCurEntry, con
 
 void CPackageDependencyListBuilder::EvaluateDependencyNode(CResourceEntry *pCurEntry, IDependencyNode *pNode, std::list<CAssetID>& rOut)
 {
+    if (!pNode) return;
     EDependencyNodeType Type = pNode->Type();
     bool ParseChildren = false;
 
@@ -513,6 +515,7 @@ void CAreaDependencyListBuilder::AddDependency(const CAssetID& rkID, std::list<C
 
 void CAreaDependencyListBuilder::EvaluateDependencyNode(CResourceEntry *pCurEntry, IDependencyNode *pNode, std::list<CAssetID>& rOut, std::set<CAssetID> *pAudioGroupsOut)
 {
+    if (!pNode) return;
     EDependencyNodeType Type = pNode->Type();
     bool ParseChildren = false;
 

src/Core/Resource/CResTypeInfo.cpp

@@ -195,7 +195,7 @@ void CResTypeInfo::CResTypeInfoFactory::InitTypes()
     }
     {
         CResTypeInfo *pType = new CResTypeInfo(EResourceType::AudioGroup, "Audio Group", "agsc");
-        AddExtension(pType, "AGSC", EGame::PrimeDemo, EGame::Echoes);
+        AddExtension(pType, "AGSC", EGame::PrimeDemo, EGame::CorruptionProto);
         pType->mCanHaveDependencies = false;
     }
     {
@@ -386,6 +386,7 @@ void CResTypeInfo::CResTypeInfoFactory::InitTypes()
         CResTypeInfo *pType = new CResTypeInfo(EResourceType::Texture, "Texture", "txtr");
         AddExtension(pType, "TXTR", EGame::PrimeDemo, EGame::DKCReturns);
         pType->mCanHaveDependencies = false;
+        pType->mCanBeSerialized = true;
     }
     {
         CResTypeInfo *pType = new CResTypeInfo(EResourceType::Tweaks, "Tweak Data", "ctwk");

src/Core/Resource/Factory/CAnimationLoader.cpp

@@ -81,7 +81,7 @@ void CAnimationLoader::ReadUncompressedANIM()
     // Echoes only - rotation channel indices
     std::vector<uint8> RotationIndices;
 
-    if (mGame == EGame::Echoes)
+    if (mGame >= EGame::EchoesDemo)
     {
         uint32 NumRotationIndices = mpInput->ReadLong();
         RotationIndices.resize(NumRotationIndices);
@@ -125,7 +125,7 @@ void CAnimationLoader::ReadUncompressedANIM()
     // Echoes only - scale channel indices
     std::vector<uint8> ScaleIndices;
 
-    if (mGame == EGame::Echoes)
+    if (mGame >= EGame::EchoesDemo)
     {
         uint32 NumScaleIndices = mpInput->ReadLong();
         ScaleIndices.resize(NumScaleIndices);
@@ -161,7 +161,7 @@ void CAnimationLoader::ReadUncompressedANIM()
     }
 
     // Read bone transforms
-    if (mGame == EGame::Echoes)
+    if (mGame >= EGame::EchoesDemo)
     {
         mpInput->Seek(0x4, SEEK_CUR); // Skipping scale key count
         mpAnim->mScaleChannels.resize(NumScaleChannels);
@@ -208,23 +208,24 @@ void CAnimationLoader::ReadCompressedANIM()
     // Header
     mpInput->Seek(0x4, SEEK_CUR); // Skip alloc size
 
-    if (mGame == EGame::Invalid)
+    // Version check
     mGame = (mpInput->PeekShort() == 0x0101 ? EGame::Echoes : EGame::Prime);
 
-    if (mGame == EGame::Prime)
+    // Check the ANIM resource's game instead of the version check we just determined.
+    // The Echoes demo has some ANIMs that use MP1's format, but don't have the EVNT reference.
+    if (mpAnim->Game() <= EGame::Prime)
     {
         mpAnim->mpEventData = gpResourceStore->LoadResource<CAnimEventData>(mpInput->ReadLong());
-        mpInput->Seek(0x4, SEEK_CUR); // Skip unknown
     }
-    else mpInput->Seek(0x2, SEEK_CUR); // Skip unknowns
 
+    mpInput->Seek(mGame <= EGame::Prime ? 4 : 2, SEEK_CUR); // Skip unknowns
     mpAnim->mDuration = mpInput->ReadFloat();
     mpAnim->mTickInterval = mpInput->ReadFloat();
     mpInput->Seek(0x8, SEEK_CUR); // Skip two unknown values
 
     mRotationDivisor = mpInput->ReadLong();
     mTranslationMultiplier = mpInput->ReadFloat();
-    if (mGame == EGame::Echoes) mScaleMultiplier = mpInput->ReadFloat();
+    if (mGame >= EGame::EchoesDemo) mScaleMultiplier = mpInput->ReadFloat();
     uint32 NumBoneChannels = mpInput->ReadLong();
     mpInput->Seek(0x4, SEEK_CUR); // Skip unknown value
 
@@ -284,7 +285,7 @@ void CAnimationLoader::ReadCompressedANIM()
         // Read scale parameters
         uint8 ScaleIdx = 0xFF;
 
-        if (mGame == EGame::Echoes)
+        if (mGame >= EGame::EchoesDemo)
         {
             rChan.NumScaleKeys = mpInput->ReadShort();
 

src/Editor/CExportGameDialog.cpp

@@ -150,12 +150,32 @@ bool CExportGameDialog::ValidateGame()
         // This ID is normally MP1, but it's used by the MP1 NTSC demo and the MP2 bonus disc demo as well
         if (strcmp(rkHeader.m_gameTitle, "Long Game Name") == 0)
         {
-            // todo - not handling demos yet
-            return false;
+            // Calculate the CRC of the apploader to figure out which game this is.
+            std::unique_ptr<uint8_t[]> pApploaderData = mpDisc->getDataPartition()->getApploaderBuf();
+            uint ApploaderSize = (uint) mpDisc->getDataPartition()->getApploaderSize();
+            uint ApploaderHash = CCRC32::StaticHashData(pApploaderData.get(), ApploaderSize);
+
+            if (ApploaderHash == 0x21B7AFF5)
+            {
+                // This is the hash for the NTSC MP1 demo.
+                mGame = EGame::PrimeDemo;
+            }
+            else
+            {
+                // Hash is different, so this is most likely an Echoes demo build
+                mGame = EGame::EchoesDemo;
             }
 
+            break;
+        }
+        else
+        {
+            // This could be either Metroid Prime, or the PAL demo of it...
+            // In either case, the PAL demo is based on a later build of the game than the NTSC demo
+            // So the PAL demo should be configured the same way as the release build of the game anyway
             mGame = EGame::Prime;
             break;
+        }
 
     case FOURCC('G2MX'):
         // Echoes, but also appears in the MP3 proto
@@ -202,6 +222,16 @@ bool CExportGameDialog::ValidateGame()
         return false;
     }
 
+    // The demo builds are not supported. The MP1 demo does not have script templates currently.
+    // Additionally, a lot of file format loaders currently don't support the demo variants of the
+    // file formats, meaning that attempting to export results in crashes.
+    if (mGame == EGame::PrimeDemo || mGame == EGame::EchoesDemo || mGame == EGame::CorruptionProto)
+    {
+        // we cannot parent the error message box to ourselves because this window hasn't been shown
+        UICommon::ErrorMsg(parentWidget(), "The demo builds are currently not supported.");
+        return false;
+    }
+
     return true;
 }