source: OniSplit/InstanceDescriptor.cs@ 1137

Last change on this file since 1137 was 1114, checked in by iritscen, 5 years ago

Adding OniSplit source code (v0.9.99.0). Many thanks to Neo for all his work over the years.

File size: 4.8 KB
Line 
1using System;
2using System.Collections.Generic;
3using System.IO;
4using Oni.Metadata;
5
6namespace Oni
7{
8 internal sealed class InstanceDescriptor
9 {
10 private InstanceFile file;
11 private string fullName;
12 private int index;
13 private Template template;
14 private int dataOffset;
15 private int nameOffset;
16 private int dataSize;
17 private InstanceDescriptorFlags flags;
18
19 internal static InstanceDescriptor Read(InstanceFile file, BinaryReader reader, int index)
20 {
21 var metadata = InstanceMetadata.GetMetadata(file);
22
23 var descriptor = new InstanceDescriptor
24 {
25 file = file,
26 index = index,
27 template = metadata.GetTemplate((TemplateTag)reader.ReadInt32()),
28 dataOffset = reader.ReadInt32(),
29 nameOffset = reader.ReadInt32(),
30 dataSize = reader.ReadInt32(),
31 flags = (InstanceDescriptorFlags)(reader.ReadInt32() & 0xff)
32 };
33
34 if (descriptor.IsPlaceholder && !descriptor.HasName)
35 throw new InvalidDataException("Empty descriptors must have names");
36
37 return descriptor;
38 }
39
40 public InstanceFile File => file;
41
42 public int Index => index;
43
44 public string FullName
45 {
46 get
47 {
48 if (fullName == null)
49 fullName = index.ToString();
50
51 return fullName;
52 }
53 }
54
55 public string Name
56 {
57 get
58 {
59 string name = FullName;
60
61 if (name.StartsWith(Template.Tag.ToString(), StringComparison.Ordinal))
62 name = name.Substring(4);
63
64 return name;
65 }
66 }
67
68 public Template Template => template;
69
70 public bool HasName => ((flags & InstanceDescriptorFlags.Private) == 0);
71
72 public bool IsPlaceholder => ((flags & InstanceDescriptorFlags.Placeholder) != 0 || dataSize == 0 || dataOffset == 0);
73
74 public int DataOffset => file.Header.DataTableOffset + dataOffset;
75
76 public int DataSize => dataSize;
77
78 internal void ReadName(Dictionary<int, string> names)
79 {
80 if (!HasName)
81 return;
82
83 if (IsPlaceholder || file.Header.Version == InstanceFileHeader.Version31)
84 {
85 names.TryGetValue(nameOffset, out fullName);
86 }
87 else
88 {
89 fullName = Importer.DecodeFileName(file.FilePath);
90
91 string tagName = template.Tag.ToString();
92
93 if (!fullName.StartsWith(tagName, StringComparison.Ordinal))
94 fullName = tagName + fullName;
95 }
96 }
97
98 internal void SetName(string newName)
99 {
100 flags &= ~InstanceDescriptorFlags.Private;
101 fullName = newName;
102 }
103
104 public List<InstanceDescriptor> GetReferencedDescriptors() => file.GetReferencedDescriptors(this);
105
106 internal BinaryReader OpenRead()
107 {
108 if (IsPlaceholder)
109 throw new InvalidOperationException();
110
111 return new BinaryReader(file.FilePath, file)
112 {
113 Position = DataOffset
114 };
115 }
116
117 internal BinaryReader OpenRead(int offset)
118 {
119 if (IsPlaceholder)
120 throw new InvalidOperationException();
121
122 return new BinaryReader(file.FilePath, file)
123 {
124 Position = DataOffset + offset
125 };
126 }
127
128 internal BinaryReader GetRawReader(int offset) => file.GetRawReader(offset);
129
130 internal BinaryReader GetSepReader(int offset)
131 {
132 if (!IsMacFile)
133 return GetRawReader(offset);
134
135 return file.GetSepReader(offset);
136 }
137
138 internal bool IsMacFile => (file.Header.TemplateChecksum == InstanceFileHeader.OniMacTemplateChecksum);
139
140 public long TemplateChecksum => file.Header.TemplateChecksum;
141
142 public string FilePath => file.FilePath;
143
144 public bool HasRawParts()
145 {
146 if (IsPlaceholder)
147 return false;
148
149 switch (template.Tag)
150 {
151 case TemplateTag.AKVA:
152 case TemplateTag.AGDB:
153 case TemplateTag.BINA:
154 case TemplateTag.TXMP:
155 case TemplateTag.OSBD:
156 case TemplateTag.SNDD:
157 case TemplateTag.SUBT:
158 case TemplateTag.TRAM:
159 return true;
160
161 default:
162 return false;
163 }
164 }
165 }
166}
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