feat: add T4 PhysPreset support (#925)

* feat: add T4 PhysPreset support * chore: slight adjustment to how the max friction constant is named --------- Co-authored-by: Jan Laupetin <[email protected]>
2026-07-26 18:00:38 +00:00 · 2026-07-21 23:56:59 +02:00
parent 572965844e
commit 37bb67a3a5
14 changed files with 490 additions and 1 deletions
@@ -0,0 +1,91 @@
+#include "PhysPresetInfoStringDumperT4.h"
+
+#include "Game/T4/InfoString/InfoStringFromStructConverter.h"
+#include "Game/T4/ObjConstantsT4.h"
+#include "Game/T4/PhysPreset/PhysPresetFields.h"
+#include "PhysPreset/PhysPresetCommon.h"
+
+#include <algorithm>
+#include <cassert>
+#include <type_traits>
+
+using namespace T4;
+
+namespace
+{
+    class InfoStringFromPhysPresetConverter final : public InfoStringFromStructConverter
+    {
+    protected:
+        void FillFromExtensionField(const cspField_t& field) override
+        {
+            assert(false);
+        }
+
+    public:
+        InfoStringFromPhysPresetConverter(const PhysPresetInfo* structure, const cspField_t* fields, const size_t fieldCount)
+            : InfoStringFromStructConverter(structure, fields, fieldCount)
+        {
+        }
+    };
+
+    void CopyToPhysPresetInfo(const PhysPreset& physPreset, PhysPresetInfo& physPresetInfo)
+    {
+        physPresetInfo.mass = std::clamp(physPreset.mass * 1000.0f, 1.0f, 2000.0f);
+        physPresetInfo.bounce = physPreset.bounce;
+
+        if (physPreset.friction >= PHYS_PRESET_MAX_FRICTION)
+        {
+            physPresetInfo.isFrictionInfinity = 1;
+            physPresetInfo.friction = 0;
+        }
+        else
+        {
+            physPresetInfo.isFrictionInfinity = 0;
+            physPresetInfo.friction = physPreset.friction;
+        }
+
+        physPresetInfo.bulletForceScale = physPreset.bulletForceScale;
+        physPresetInfo.explosiveForceScale = physPreset.explosiveForceScale;
+        physPresetInfo.sndAliasPrefix = physPreset.sndAliasPrefix;
+        physPresetInfo.piecesSpreadFraction = physPreset.piecesSpreadFraction;
+        physPresetInfo.piecesUpwardVelocity = physPreset.piecesUpwardVelocity;
+        physPresetInfo.canFloat = physPreset.canFloat;
+        physPresetInfo.gravityScale = std::clamp(physPreset.gravityScale, 0.01f, 10.0f);
+    }
+
+    InfoString CreateInfoString(const PhysPreset& physPreset)
+    {
+        PhysPresetInfo physPresetInfo{};
+        CopyToPhysPresetInfo(physPreset, physPresetInfo);
+
+        InfoStringFromPhysPresetConverter converter(&physPresetInfo, phys_preset_fields, std::extent_v<decltype(phys_preset_fields)>);
+        return converter.Convert();
+    }
+} // namespace
+
+namespace phys_preset
+{
+    void InfoStringDumperT4::DumpAsset(AssetDumpingContext& context, const XAssetInfo<AssetPhysPreset::Type>& asset)
+    {
+        // Only dump raw when no gdt available
+        if (context.m_gdt)
+        {
+            const auto infoString = CreateInfoString(*asset.Asset());
+            GdtEntry gdtEntry(asset.m_name, GDF_FILENAME_PHYS_PRESET);
+            infoString.ToGdtProperties(INFO_STRING_PREFIX_PHYS_PRESET, gdtEntry);
+            context.m_gdt->WriteEntry(gdtEntry);
+        }
+        else
+        {
+            const auto assetFile = context.OpenAssetFile(GetFileNameForAssetName(asset.m_name));
+
+            if (!assetFile)
+                return;
+
+            auto& stream = *assetFile;
+            const auto infoString = CreateInfoString(*asset.Asset());
+            const auto stringValue = infoString.ToString(INFO_STRING_PREFIX_PHYS_PRESET);
+            stream.write(stringValue.c_str(), stringValue.size());
+        }
+    }
+} // namespace phys_preset