public static string GenerateUDKFileForLevel(string udkPath, IMEPackage pcc)
{
#region AssetPackage
string meshPackageName = $"{Path.GetFileNameWithoutExtension(pcc.FilePath)}Meshes";
string meshFile = Path.Combine(udkPath, @"UDKGame\Content\Shared\", $"{meshPackageName}.upk");
MEPackageHandler.CreateAndSavePackage(meshFile, MEGame.UDK);
using IMEPackage meshPackage = MEPackageHandler.OpenUDKPackage(meshFile);
meshPackage.getEntryOrAddImport("Core.Package");
IEntry defMat = meshPackage.getEntryOrAddImport("EngineMaterials.DefaultMaterial", "Material", "Engine");
var allMats = new HashSet <int>();
var relinkMap = new Dictionary <IEntry, IEntry>();
#region StaticMeshes
List <ExportEntry> staticMeshes = pcc.Exports.Where(exp => exp.ClassName == "StaticMesh").ToList();
foreach (ExportEntry mesh in staticMeshes)
{
var mats = new Queue <int>();
StaticMesh stm = ObjectBinary.From <StaticMesh>(mesh);
foreach (StaticMeshRenderData lodModel in stm.LODModels)
{
foreach (StaticMeshElement meshElement in lodModel.Elements)
{
mats.Enqueue(meshElement.Material);
allMats.Add(meshElement.Material);
meshElement.Material = 0;
}
}
if (pcc.GetEntry(stm.BodySetup) is ExportEntry rbBodySetup)
{
rbBodySetup.RemoveProperty("PhysMaterial");
}
mesh.WriteBinary(stm);
IEntry newParent = EntryImporter.GetOrAddCrossImportOrPackage(mesh.ParentFullPath, pcc, meshPackage);
EntryImporter.ImportAndRelinkEntries(EntryImporter.PortingOption.CloneTreeAsChild, mesh, meshPackage, newParent, false, out IEntry ent, relinkMap);
ExportEntry portedMesh = (ExportEntry)ent;
stm = ObjectBinary.From <StaticMesh>(portedMesh);
foreach (StaticMeshRenderData lodModel in stm.LODModels)
{
foreach (StaticMeshElement meshElement in lodModel.Elements)
{
meshElement.Material = mats.Dequeue();
}
}
portedMesh.WriteBinary(stm);
}
#endregion
#region Materials
using (IMEPackage udkResources = MEPackageHandler.OpenMEPackageFromStream(Utilities.GetCustomAppResourceStream(MEGame.UDK)))
{
ExportEntry normDiffMat = udkResources.Exports.First(exp => exp.ObjectName == "NormDiffMat");
foreach (int matUIndex in allMats)
{
if (pcc.GetEntry(matUIndex) is ExportEntry matExp)
{
List <IEntry> textures = new MaterialInstanceConstant(matExp).Textures;
ExportEntry diff = null;
ExportEntry norm = null;
foreach (IEntry texEntry in textures)
{
if (texEntry is ExportEntry texport)
{
if (texport.ObjectName.Name.ToLower().Contains("diff"))
{
diff = texport;
}
else if (texport.ObjectName.Name.ToLower().Contains("norm"))
{
norm = texport;
}
}
}
if (diff == null)
{
relinkMap[matExp] = defMat;
continue;
}
else
{
EntryImporter.ImportAndRelinkEntries(EntryImporter.PortingOption.AddSingularAsChild, diff, meshPackage, null, false, out IEntry ent);
diff = (ExportEntry)ent;
diff.RemoveProperty("TextureFileCacheName");
diff.RemoveProperty("TFCFileGuid");
diff.RemoveProperty("LODGroup");
}
if (norm != null)
{
EntryImporter.ImportAndRelinkEntries(EntryImporter.PortingOption.AddSingularAsChild, norm, meshPackage, null, false, out IEntry ent);
norm = (ExportEntry)ent;
norm.RemoveProperty("TextureFileCacheName");
norm.RemoveProperty("TFCFileGuid");
norm.RemoveProperty("LODGroup");
}
EntryImporter.ImportAndRelinkEntries(EntryImporter.PortingOption.CloneTreeAsChild, normDiffMat, meshPackage, null, true, out IEntry matEnt);
ExportEntry newMat = (ExportEntry)matEnt;
newMat.ObjectName = matExp.ObjectName;
Material matBin = ObjectBinary.From <Material>(newMat);
matBin.SM3MaterialResource.UniformExpressionTextures = new UIndex[] { norm?.UIndex ?? 0, diff.UIndex };
newMat.WriteBinary(matBin);
relinkMap[matExp] = newMat;
if (newMat.GetProperty <ArrayProperty <ObjectProperty> >("Expressions") is {} expressionsProp&& expressionsProp.Count >= 2)
{
ExportEntry diffExpression = meshPackage.GetUExport(expressionsProp[0].Value);
ExportEntry normExpression = meshPackage.GetUExport(expressionsProp[1].Value);
diffExpression.WriteProperty(new ObjectProperty(diff.UIndex, "Texture"));
normExpression.WriteProperty(new ObjectProperty(norm?.UIndex ?? 0, "Texture"));
}
}
else if (pcc.GetEntry(matUIndex) is ImportEntry matImp)
{
relinkMap[matImp] = defMat;
}
}
var relinkMapping = new OrderedMultiValueDictionary <IEntry, IEntry>(relinkMap);
foreach (ExportEntry stmExport in staticMeshes)
{
if (relinkMap.TryGetValue(stmExport, out IEntry destEnt) && destEnt is ExportEntry destExp)
{
Relinker.Relink(stmExport, destExp, relinkMapping);
}
}
}
#endregion
meshPackage.Save();
#endregion
var staticMeshActors = new List <ExportEntry>();
var lightActors = new List <ExportEntry>();
string tempPackagePath = Path.Combine(App.ExecFolder, $"{Path.GetFileNameWithoutExtension(pcc.FilePath)}.udk");
File.Copy(Path.Combine(App.ExecFolder, "empty.udk"), tempPackagePath, true);
using IMEPackage udkPackage = MEPackageHandler.OpenUDKPackage(tempPackagePath);
{
var topLevelMeshPackages = new List <IEntry>();
foreach (ExportEntry exportEntry in staticMeshes)
{
IEntry imp = udkPackage.getEntryOrAddImport($"{exportEntry.FullPath}", "StaticMesh", "Engine", exportEntry.ObjectName.Number);
while (imp.Parent != null)
{
imp = imp.Parent;
}
if (!topLevelMeshPackages.Contains(imp))
{
topLevelMeshPackages.Add(imp);
}
}
ExportEntry levelExport = udkPackage.Exports.First(exp => exp.ClassName == "Level");
List <int> actorsInLevel = ObjectBinary.From <Level>(pcc.Exports.First(exp => exp.ClassName == "Level")).Actors.Select(u => u.value).ToList();
var componentToMatrixMap = new Dictionary <int, Matrix>();
foreach (int uIndex in actorsInLevel)
{
if (pcc.GetEntry(uIndex) is ExportEntry stcExp)
{
if (stcExp.ClassName == "StaticMeshCollectionActor")
{
StaticMeshCollectionActor stmc = ObjectBinary.From <StaticMeshCollectionActor>(stcExp);
var components = stcExp.GetProperty <ArrayProperty <ObjectProperty> >("StaticMeshComponents");
for (int i = 0; i < components.Count; i++)
{
componentToMatrixMap[components[i].Value] = stmc.LocalToWorldTransforms[i];
}
}
else if (stcExp.ClassName == "StaticLightCollectionActor")
{
StaticLightCollectionActor stlc = ObjectBinary.From <StaticLightCollectionActor>(stcExp);
var components = stcExp.GetProperty <ArrayProperty <ObjectProperty> >("LightComponents");
for (int i = 0; i < components.Count; i++)
{
componentToMatrixMap[components[i].Value] = stlc.LocalToWorldTransforms[i];
}
}
}
}
#region StaticMeshActors
{
var emptySMCBin = new StaticMeshComponent();
IEntry staticMeshActorClass = udkPackage.getEntryOrAddImport("Engine.StaticMeshActor");
udkPackage.getEntryOrAddImport("Engine.Default__StaticMeshActor", "StaticMeshActor", "Engine");
IEntry staticMeshComponentArchetype = udkPackage.getEntryOrAddImport("Engine.Default__StaticMeshActor.StaticMeshComponent0",
"StaticMeshComponent", "Engine");
int smaIndex = 2;
int smcIndex = 2;
foreach (ExportEntry smc in pcc.Exports.Where(exp => exp.ClassName == "StaticMeshComponent"))
{
if (smc.Parent is ExportEntry parent && actorsInLevel.Contains(parent.UIndex) && parent.IsA("StaticMeshActorBase"))
{
StructProperty locationProp;
StructProperty rotationProp;
StructProperty scaleProp = null;
smc.CondenseArchetypes();
if (!(smc.GetProperty <ObjectProperty>("StaticMesh") is { } meshProp) || !pcc.IsUExport(meshProp.Value))
{
continue;
}
smc.WriteBinary(emptySMCBin);
smc.RemoveProperty("bBioIsReceivingDecals");
smc.RemoveProperty("bBioForcePrecomputedShadows");
//smc.RemoveProperty("bUsePreComputedShadows");
smc.RemoveProperty("bAcceptsLights");
smc.RemoveProperty("IrrelevantLights");
smc.RemoveProperty("Materials"); //should make use of this?
smc.ObjectName = new NameReference("StaticMeshComponent", smcIndex++);
if (parent.ClassName == "StaticMeshCollectionActor")
{
if (!componentToMatrixMap.TryGetValue(smc.UIndex, out Matrix m))
{
continue;
}
(Vector3 posVec, Vector3 scaleVec, Rotator rotator) = m.UnrealDecompose();
locationProp = CommonStructs.Vector3Prop(posVec, "Location");
rotationProp = CommonStructs.RotatorProp(rotator, "Rotation");
scaleProp = CommonStructs.Vector3Prop(scaleVec, "DrawScale3D");
//smc.WriteProperty(CommonStructs.Matrix(m, "CachedParentToWorld"));
}
else
{
locationProp = parent.GetProperty <StructProperty>("Location");
rotationProp = parent.GetProperty <StructProperty>("Rotation");
scaleProp = parent.GetProperty <StructProperty>("DrawScale3D");
if (parent.GetProperty <FloatProperty>("DrawScale")?.Value is float scale)
{
Vector3 scaleVec = Vector3.One;
if (scaleProp != null)
{
scaleVec = CommonStructs.GetVector3(scaleProp);
}
scaleProp = CommonStructs.Vector3Prop(scaleVec * scale, "DrawScale3D");
}
}
ExportEntry sma = new ExportEntry(udkPackage, EntryImporter.CreateStack(MEGame.UDK, staticMeshActorClass.UIndex))
{
ObjectName = new NameReference("StaticMeshActor", smaIndex++),
Class = staticMeshActorClass,
Parent = levelExport
};
sma.ObjectFlags |= UnrealFlags.EObjectFlags.HasStack;
udkPackage.AddExport(sma);
EntryImporter.ImportAndRelinkEntries(EntryImporter.PortingOption.AddSingularAsChild, smc, udkPackage,
sma, true, out IEntry result);
var props = new PropertyCollection
{
new ObjectProperty(result.UIndex, "StaticMeshComponent"),
new NameProperty(new NameReference(Path.GetFileNameWithoutExtension(smc.FileRef.FilePath), smc.UIndex),
"Tag"),
new ObjectProperty(result.UIndex, "CollisionComponent")
};
if (locationProp != null)
{
props.Add(locationProp);
}
if (rotationProp != null)
{
props.Add(rotationProp);
}
if (scaleProp != null)
{
props.Add(scaleProp);
}
sma.WriteProperties(props);
staticMeshActors.Add(sma);
}
}
IEntry topMeshPackageImport = udkPackage.getEntryOrAddImport(meshPackageName, "Package");
foreach (IEntry mp in topLevelMeshPackages)
{
mp.Parent = topMeshPackageImport;
}
}
#endregion
#region LightActors
{
IEntry pointLightClass = udkPackage.getEntryOrAddImport("Engine.PointLight");
IEntry spotLightClass = udkPackage.getEntryOrAddImport("Engine.SpotLight");
IEntry directionalLightClass = udkPackage.getEntryOrAddImport("Engine.DirectionalLight");
int plaIndex = 1;
int plcIndex = 1;
int slaIndex = 1;
int slcIndex = 1;
int dlaIndex = 1;
int dlcIndex = 1;
foreach (ExportEntry lightComponent in pcc.Exports)
{
if (!(lightComponent.Parent is ExportEntry parent && actorsInLevel.Contains(parent.UIndex)))
{
continue;
}
StructProperty locationProp;
StructProperty rotationProp;
StructProperty scaleProp;
switch (lightComponent.ClassName)
{
case "PointLightComponent":
lightComponent.CondenseArchetypes();
lightComponent.ObjectName = new NameReference("PointLightComponent", plcIndex++);
if (parent.ClassName == "StaticLightCollectionActor")
{
if (!componentToMatrixMap.TryGetValue(lightComponent.UIndex, out Matrix m))
{
continue;
}
(Vector3 posVec, Vector3 scaleVec, Rotator rotator) = m.UnrealDecompose();
locationProp = CommonStructs.Vector3Prop(posVec, "Location");
rotationProp = CommonStructs.RotatorProp(rotator, "Rotation");
scaleProp = CommonStructs.Vector3Prop(scaleVec, "DrawScale3D");
}
else
{
locationProp = parent.GetProperty <StructProperty>("Location");
rotationProp = parent.GetProperty <StructProperty>("Rotation");
scaleProp = parent.GetProperty <StructProperty>("DrawScale3D");
if (parent.GetProperty <FloatProperty>("DrawScale")?.Value is float scale)
{
Vector3 scaleVec = Vector3.One;
if (scaleProp != null)
{
scaleVec = CommonStructs.GetVector3(scaleProp);
}
scaleProp = CommonStructs.Vector3Prop(scaleVec * scale, "DrawScale3D");
}
}
ExportEntry pla = new ExportEntry(udkPackage, EntryImporter.CreateStack(MEGame.UDK, pointLightClass.UIndex))
{
ObjectName = new NameReference("PointLight", plaIndex++),
Class = pointLightClass,
Parent = levelExport
};
pla.ObjectFlags |= UnrealFlags.EObjectFlags.HasStack;
udkPackage.AddExport(pla);
EntryImporter.ImportAndRelinkEntries(EntryImporter.PortingOption.AddSingularAsChild, lightComponent, udkPackage, pla, true,
out IEntry portedPLC);
var plsProps = new PropertyCollection
{
new ObjectProperty(portedPLC.UIndex, "LightComponent"),
new NameProperty("PointLight", "Tag"),
};
if (locationProp != null)
{
plsProps.Add(locationProp);
}
if (rotationProp != null)
{
plsProps.Add(rotationProp);
}
if (scaleProp != null)
{
plsProps.Add(scaleProp);
}
pla.WriteProperties(plsProps);
lightActors.Add(pla);
break;
case "SpotLightComponent":
lightComponent.CondenseArchetypes();
lightComponent.ObjectName = new NameReference("SpotLightComponent", slcIndex++);
if (parent.ClassName == "StaticLightCollectionActor")
{
if (!componentToMatrixMap.TryGetValue(lightComponent.UIndex, out Matrix m))
{
continue;
}
(Vector3 posVec, Vector3 scaleVec, Rotator rotator) = m.UnrealDecompose();
locationProp = CommonStructs.Vector3Prop(posVec, "Location");
rotationProp = CommonStructs.RotatorProp(rotator, "Rotation");
scaleProp = CommonStructs.Vector3Prop(scaleVec, "DrawScale3D");
}
else
{
locationProp = parent.GetProperty <StructProperty>("Location");
rotationProp = parent.GetProperty <StructProperty>("Rotation");
scaleProp = parent.GetProperty <StructProperty>("DrawScale3D");
if (parent.GetProperty <FloatProperty>("DrawScale")?.Value is float scale)
{
Vector3 scaleVec = Vector3.One;
if (scaleProp != null)
{
scaleVec = CommonStructs.GetVector3(scaleProp);
}
scaleProp = CommonStructs.Vector3Prop(scaleVec * scale, "DrawScale3D");
}
}
ExportEntry sla = new ExportEntry(udkPackage, EntryImporter.CreateStack(MEGame.UDK, spotLightClass.UIndex))
{
ObjectName = new NameReference("SpotLight", slaIndex++),
Class = spotLightClass,
Parent = levelExport
};
sla.ObjectFlags |= UnrealFlags.EObjectFlags.HasStack;
udkPackage.AddExport(sla);
EntryImporter.ImportAndRelinkEntries(EntryImporter.PortingOption.AddSingularAsChild, lightComponent, udkPackage, sla, true,
out IEntry portedSLC);
var slaProps = new PropertyCollection
{
new ObjectProperty(portedSLC.UIndex, "LightComponent"),
new NameProperty("SpotLight", "Tag"),
};
if (locationProp != null)
{
slaProps.Add(locationProp);
}
if (rotationProp != null)
{
slaProps.Add(rotationProp);
}
if (scaleProp != null)
{
slaProps.Add(scaleProp);
}
sla.WriteProperties(slaProps);
lightActors.Add(sla);
break;
case "DirectionalLightComponent":
lightComponent.CondenseArchetypes();
lightComponent.ObjectName = new NameReference("DirectionalLightComponent", dlcIndex++);
if (parent.ClassName == "StaticLightCollectionActor")
{
if (!componentToMatrixMap.TryGetValue(lightComponent.UIndex, out Matrix m))
{
continue;
}
(Vector3 posVec, Vector3 scaleVec, Rotator rotator) = m.UnrealDecompose();
locationProp = CommonStructs.Vector3Prop(posVec, "Location");
rotationProp = CommonStructs.RotatorProp(rotator, "Rotation");
scaleProp = CommonStructs.Vector3Prop(scaleVec, "DrawScale3D");
}
else
{
locationProp = parent.GetProperty <StructProperty>("Location");
rotationProp = parent.GetProperty <StructProperty>("Rotation");
scaleProp = parent.GetProperty <StructProperty>("DrawScale3D");
if (parent.GetProperty <FloatProperty>("DrawScale")?.Value is float scale)
{
Vector3 scaleVec = Vector3.One;
if (scaleProp != null)
{
scaleVec = CommonStructs.GetVector3(scaleProp);
}
scaleProp = CommonStructs.Vector3Prop(scaleVec * scale, "DrawScale3D");
}
}
ExportEntry dla = new ExportEntry(udkPackage, EntryImporter.CreateStack(MEGame.UDK, directionalLightClass.UIndex))
{
ObjectName = new NameReference("DirectionalLight", dlaIndex++),
Class = directionalLightClass,
Parent = levelExport
};
dla.ObjectFlags |= UnrealFlags.EObjectFlags.HasStack;
udkPackage.AddExport(dla);
EntryImporter.ImportAndRelinkEntries(EntryImporter.PortingOption.AddSingularAsChild, lightComponent, udkPackage, dla, true,
out IEntry portedDLC);
var dlaProps = new PropertyCollection
{
new ObjectProperty(portedDLC.UIndex, "LightComponent"),
new NameProperty("DirectionalLight", "Tag"),
};
if (locationProp != null)
{
dlaProps.Add(locationProp);
}
if (rotationProp != null)
{
dlaProps.Add(rotationProp);
}
if (scaleProp != null)
{
dlaProps.Add(scaleProp);
}
dla.WriteProperties(dlaProps);
lightActors.Add(dla);
break;
}
}
}
UDKifyLights(udkPackage);
#endregion
Level level = ObjectBinary.From <Level>(levelExport);
level.Actors = levelExport.GetChildren().Where(ent => ent.IsA("Actor")).Select(ent => new UIndex(ent.UIndex)).ToList();
levelExport.WriteBinary(level);
udkPackage.Save();
}
string resultFilePath = Path.Combine(udkPath, @"UDKGame\Content\Maps\", $"{Path.GetFileNameWithoutExtension(pcc.FilePath)}.udk");
using (IMEPackage udkPackage2 = MEPackageHandler.OpenUDKPackage(Path.Combine(App.ExecFolder, "empty.udk")))
{
ExportEntry levelExport = udkPackage2.Exports.First(exp => exp.ClassName == "Level");
Level levelBin = ObjectBinary.From <Level>(levelExport);
foreach (ExportEntry actor in staticMeshActors)
{
EntryImporter.ImportAndRelinkEntries(EntryImporter.PortingOption.CloneTreeAsChild, actor, udkPackage2, levelExport, true, out IEntry result);
levelBin.Actors.Add(result.UIndex);
}
foreach (ExportEntry actor in lightActors)
{
EntryImporter.ImportAndRelinkEntries(EntryImporter.PortingOption.CloneTreeAsChild, actor, udkPackage2, levelExport, true, out IEntry result);
levelBin.Actors.Add(result.UIndex);
}
levelExport.WriteBinary(levelBin);
udkPackage2.Save(resultFilePath);
}
File.Delete(tempPackagePath);
return(resultFilePath);
}