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Implement native layout-3 save restoration

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gamer147
2026-07-24 16:23:01 -04:00
parent 8fe610b66d
commit 001a5706f6
21 changed files with 1659 additions and 81 deletions
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13
engine/Age.Engine/Sys4/Sys4Loader.cs
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@@ -29,6 +29,8 @@ public static class Sys4Loader
throw new InvalidDataException($"{name}: invalid T1 read-message table");
int[] messageOffsets = dw.AsSpan(messageTableOffset, messageCount)
.ToArray().Select(value => checked((int)value)).ToArray();
int[] scriptCallOffsets = ReadOffsetTable(dw, fields[9], fields[10], nbody, name, "T2 script-call");
int[] localCallOffsets = ReadOffsetTable(dw, fields[11], fields[12], nbody, name, "T3 local-call");
return new Script
{
Name = name,
@@ -39,9 +41,20 @@ public static class Sys4Loader
Strings = strings,
BodyDwords = dw,
ReadMessageOffsets = messageOffsets,
ScriptCallOffsets = scriptCallOffsets,
LocalCallOffsets = localCallOffsets,
};
}
private static int[] ReadOffsetTable(
uint[] body, int count, int offset, int bodyLength, string name, string tableName)
{
if (count < 0 || offset < 0 || offset > bodyLength || count > bodyLength - offset)
throw new InvalidDataException($"{name}: invalid {tableName} table");
return body.AsSpan(offset, count).ToArray()
.Select(value => checked((int)value)).ToArray();
}
private static (List<Instruction>, Dictionary<int, int>, Dictionary<int, string>)
DecodeCode(uint[] dw, int[] fields, int nbody, OpcodeTable table)
{