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using System; |
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using System.Collections.Generic; |
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using System.IO; |
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using Oni.Metadata; |
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|
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namespace Oni |
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{ |
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internal sealed class InstanceDescriptor |
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{ |
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private InstanceFile file; |
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private string fullName; |
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private int index; |
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private Template template; |
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private int dataOffset; |
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private int nameOffset; |
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private int dataSize; |
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private InstanceDescriptorFlags flags; |
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|
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internal static InstanceDescriptor Read(InstanceFile file, BinaryReader reader, int index) |
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{ |
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var metadata = InstanceMetadata.GetMetadata(file); |
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|
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var descriptor = new InstanceDescriptor |
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{ |
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file = file, |
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index = index, |
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template = metadata.GetTemplate((TemplateTag)reader.ReadInt32()), |
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dataOffset = reader.ReadInt32(), |
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nameOffset = reader.ReadInt32(), |
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dataSize = reader.ReadInt32(), |
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flags = (InstanceDescriptorFlags)(reader.ReadInt32() & 0xff) |
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}; |
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|
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if (descriptor.IsPlaceholder && !descriptor.HasName) |
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throw new InvalidDataException("Empty descriptors must have names"); |
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|
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return descriptor; |
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} |
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|
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public InstanceFile File => file; |
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|
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public int Index => index; |
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|
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public string FullName |
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{ |
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get |
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{ |
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if (fullName == null) |
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fullName = index.ToString(); |
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|
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return fullName; |
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} |
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} |
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|
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public string Name |
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{ |
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get |
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{ |
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string name = FullName; |
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|
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if (name.StartsWith(Template.Tag.ToString(), StringComparison.Ordinal)) |
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name = name.Substring(4); |
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|
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return name; |
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} |
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} |
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|
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public Template Template => template; |
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|
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public bool HasName => ((flags & InstanceDescriptorFlags.Private) == 0); |
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|
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public bool IsPlaceholder => ((flags & InstanceDescriptorFlags.Placeholder) != 0 || dataSize == 0 || dataOffset == 0); |
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|
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public int DataOffset => file.Header.DataTableOffset + dataOffset; |
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|
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public int DataSize => dataSize; |
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|
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internal void ReadName(Dictionary<int, string> names) |
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{ |
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if (!HasName) |
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return; |
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|
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if (IsPlaceholder || file.Header.Version == InstanceFileHeader.Version31) |
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{ |
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names.TryGetValue(nameOffset, out fullName); |
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} |
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else |
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{ |
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fullName = Importer.DecodeFileName(file.FilePath); |
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|
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string tagName = template.Tag.ToString(); |
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|
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if (!fullName.StartsWith(tagName, StringComparison.Ordinal)) |
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fullName = tagName + fullName; |
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} |
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} |
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|
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internal void SetName(string newName) |
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{ |
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flags &= ~InstanceDescriptorFlags.Private; |
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fullName = newName; |
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} |
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|
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public List<InstanceDescriptor> GetReferencedDescriptors() => file.GetReferencedDescriptors(this); |
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|
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internal BinaryReader OpenRead() |
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{ |
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if (IsPlaceholder) |
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throw new InvalidOperationException(); |
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|
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return new BinaryReader(file.FilePath, file) |
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{ |
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Position = DataOffset |
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}; |
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} |
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|
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internal BinaryReader OpenRead(int offset) |
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{ |
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if (IsPlaceholder) |
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throw new InvalidOperationException(); |
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|
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return new BinaryReader(file.FilePath, file) |
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{ |
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Position = DataOffset + offset |
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}; |
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} |
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|
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internal BinaryReader GetRawReader(int offset) => file.GetRawReader(offset); |
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|
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internal BinaryReader GetSepReader(int offset) |
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{ |
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if (!IsMacFile) |
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return GetRawReader(offset); |
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|
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return file.GetSepReader(offset); |
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} |
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|
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internal bool IsMacFile => (file.Header.TemplateChecksum == InstanceFileHeader.OniMacTemplateChecksum); |
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|
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public long TemplateChecksum => file.Header.TemplateChecksum; |
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|
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public string FilePath => file.FilePath; |
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|
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public bool HasRawParts() |
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{ |
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if (IsPlaceholder) |
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return false; |
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|
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switch (template.Tag) |
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{ |
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case TemplateTag.AKVA: |
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case TemplateTag.AGDB: |
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case TemplateTag.BINA: |
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case TemplateTag.TXMP: |
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case TemplateTag.OSBD: |
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case TemplateTag.SNDD: |
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case TemplateTag.SUBT: |
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case TemplateTag.TRAM: |
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return true; |
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|
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default: |
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return false; |
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} |
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} |
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} |
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} |
