public static bool ShouldPatchFrom(H2mccMap scene, string line, out SyntaxNodePatch patch)
{
patch = null;
if (line.TrimStart().StartsWith("//"))
{
return(false);
}
try
{
patch = new SyntaxNodePatch
{
Index = ParseFrom(line, "@:", " "),
NodeData = new ScenarioTag.ScriptSyntaxNode
{
//Checkval = ParseFrom(line, "a:"),
OperationId = ParseFrom(line, "op:"),
DataType = (ScriptDataType)ParseFrom(line, "dt:"),
NodeType = (NodeType)ParseFrom(line, "nt:"),
NextIndex = ParseFrom(line, "next:"),
//NextCheckval = ParseFrom(line, "f:"),
NodeString = ParseFrom(line, "str:"),
//ValueH = ParseFrom(line, "h:"),
NodeData_32 = ParseFrom(line, "d0:") | ((uint)ParseFrom(line, "d1:", ";")) << 16
}
};
if (patch.NodeData.NodeType == NodeType.MethodDecl)
{
return(false);
}
var node = scene.Scenario.ScriptSyntaxNodes[patch.Index];
if (node.OperationId != patch.NodeData.OperationId ||
node.DataType != patch.NodeData.DataType ||
node.NodeType != patch.NodeData.NodeType ||
node.NextIndex != patch.NodeData.NextIndex ||
node.NodeString != patch.NodeData.NodeString ||
node.NodeData_32 != patch.NodeData.NodeData_32)
{
return(true);
}
return(false);
}
catch
{
return(false);
}
}
public async Task Run()
{
using var inmemMap = new MemoryStream();
using (var map = File.Open(this.Args.MapPath, FileMode.Open))
{
H2mccCompression.Decompress(map, inmemMap);
inmemMap.Position = 0;
// Load to determine where to write patches to
var factory = new MapFactory(this.Args.MapPath);
this.scene = factory.LoadSingleH2mccMap(inmemMap);
}
var tagPatcher = new TagPatcher(scene, inmemMap);
var settings = new JsonSerializerOptions()
{
ReadCommentHandling = JsonCommentHandling.Skip
};
var patches = JsonSerializer.Deserialize <TagPatch[]>(File.ReadAllText(this.Args.TagPatchPath), settings);
foreach (var patch in patches)
{
tagPatcher.Apply(patch);
}
inmemMap.Position = 0;
var sig = H2BaseMap.CalculateSignature(inmemMap);
inmemMap.WriteInt32At(BlamSerializer.StartsAt <H2vMapHeader>(h => h.StoredSignature), sig);
inmemMap.Position = 0;
using (var map = File.Open(this.Args.MapPath, FileMode.Open))
{
inmemMap.CopyTo(map);
}
}
public static void PatchMap(H2mccMap scene, Stream map, string patchFilePath)
{
var scenarioStart = scene.TagIndex[scene.IndexHeader.Scenario].Offset.Value;
var nodesStart = BlamSerializer.StartsAt <ScenarioTag>(s => s.ScriptSyntaxNodes);
var nodeCount = map.ReadUInt32At(scenarioStart + nodesStart);
var nodeOffset = (int)map.ReadUInt32At(scenarioStart + nodesStart + 4) - scene.SecondaryMagic;
var nodeSize = BlamSerializer.SizeOf <ScenarioTag.ScriptSyntaxNode>();
var patchLines = File.ReadAllLines(patchFilePath);
foreach (var line in patchLines)
{
if (string.IsNullOrWhiteSpace(line))
{
continue;
}
if (ShouldPatchFrom(scene, line, out var patch))
{
Console.WriteLine($"\t Patching {scene.Header.Name} [{patch.Index}]");
var patchStart = nodeOffset + patch.Index * nodeSize;
// Fixup next node's check value. We never change check values, so we can
// re-use the 'old' nodes here to get that info
if (patch.NodeData.NextIndex == ushort.MaxValue)
{
patch.NodeData.NextCheckval = ushort.MaxValue;
}
else
{
var nextNode = scene.Scenario.ScriptSyntaxNodes[patch.NodeData.NextIndex];
patch.NodeData.NextCheckval = nextNode.Checkval;
}
// Fixup next node's check value for scope/invocation nodes
if ((patch.NodeData.NodeType == NodeType.BuiltinInvocation || patch.NodeData.NodeType == NodeType.ScriptInvocation))
{
if (patch.NodeData.NodeData_H16 == ushort.MaxValue)
{
patch.NodeData.NodeData_32 = patch.NodeData.NodeData_H16 | ((uint)ushort.MaxValue) << 16;
}
else
{
var nextNode = scene.Scenario.ScriptSyntaxNodes[patch.NodeData.NodeData_H16];
patch.NodeData.NodeData_32 = patch.NodeData.NodeData_H16 | ((uint)nextNode.Checkval) << 16;
}
}
//map.WriteUInt16At(patchStart + 0, patch.NodeData.Checkval);
map.WriteUInt16At(patchStart + 2, patch.NodeData.OperationId);
map.WriteUInt16At(patchStart + 4, (ushort)patch.NodeData.DataType);
map.WriteUInt16At(patchStart + 6, (ushort)patch.NodeData.NodeType);
map.WriteUInt16At(patchStart + 8, patch.NodeData.NextIndex);
map.WriteUInt16At(patchStart + 10, patch.NodeData.NextCheckval);
map.WriteUInt16At(patchStart + 12, patch.NodeData.NodeString);
//map.WriteUInt16At(patchStart + 14, patch.NodeData.ValueH);
map.WriteUInt32At(patchStart + 16, patch.NodeData.NodeData_32);
}
}
}