private void StartFunctionScan(byte[] data)
{
DecompiledScriptBlocks.ClearEx();
TokenList.ClearEx();
ScriptHeaderBlocks.ClearEx();
ScriptFooterBlocks.ClearEx();
if (CurrentLoadedExport.FileRef.Game == MEGame.ME3)
{
var func = new ME3Explorer.Unreal.Classes.Function(data, CurrentLoadedExport, CurrentLoadedExport.ClassName == "State" ? Convert.ToInt32(StartOffset_Changer.Text) : 32);
func.ParseFunction();
DecompiledScriptBlocks.Add(func.GetSignature());
DecompiledScriptBlocks.AddRange(func.ScriptBlocks);
TokenList.AddRange(func.SingularTokenList);
int pos = 12;
var functionSuperclass = BitConverter.ToInt32(CurrentLoadedExport.Data, pos);
ScriptHeaderBlocks.Add(new ScriptHeaderItem("Function superclass", functionSuperclass, pos, functionSuperclass != 0 ? CurrentLoadedExport.FileRef.getEntry(functionSuperclass) : null));
pos += 4;
var nextItemCompilingChain = BitConverter.ToInt32(CurrentLoadedExport.Data, pos);
ScriptHeaderBlocks.Add(new ScriptHeaderItem("Next item in loading chain", nextItemCompilingChain, pos, nextItemCompilingChain > 0 ? CurrentLoadedExport : null));
pos += 4;
nextItemCompilingChain = BitConverter.ToInt32(CurrentLoadedExport.Data, pos);
ScriptHeaderBlocks.Add(new ScriptHeaderItem("Children Probe Start", nextItemCompilingChain, pos, nextItemCompilingChain > 0 ? CurrentLoadedExport : null));
pos += 4;
ScriptHeaderBlocks.Add(new ScriptHeaderItem("Unknown 2 (Memory size?)", BitConverter.ToInt32(CurrentLoadedExport.Data, pos), pos));
pos += 4;
ScriptHeaderBlocks.Add(new ScriptHeaderItem("Size", BitConverter.ToInt32(CurrentLoadedExport.Data, pos), pos));
pos = CurrentLoadedExport.Data.Length - 6;
string flagStr = func.GetFlags();
ScriptFooterBlocks.Add(new ScriptHeaderItem("Native Index", BitConverter.ToInt16(CurrentLoadedExport.Data, pos), pos));
pos += 2;
ScriptFooterBlocks.Add(new ScriptHeaderItem("Flags", $"0x{BitConverter.ToInt32(CurrentLoadedExport.Data, pos).ToString("X8")} {func.GetFlags().Substring(6)}", pos));
}
else if (CurrentLoadedExport.FileRef.Game == MEGame.ME1)
{
//Header
int pos = 16;
var nextItemCompilingChain = BitConverter.ToInt32(CurrentLoadedExport.Data, pos);
ScriptHeaderBlocks.Add(new ScriptHeaderItem("Next item in loading chain", nextItemCompilingChain, pos, nextItemCompilingChain > 0 ? CurrentLoadedExport : null));
pos += 8;
nextItemCompilingChain = BitConverter.ToInt32(CurrentLoadedExport.Data, pos);
ScriptHeaderBlocks.Add(new ScriptHeaderItem("Children Probe Start", nextItemCompilingChain, pos, nextItemCompilingChain > 0 ? CurrentLoadedExport : null));
pos += 4;
ScriptHeaderBlocks.Add(new ScriptHeaderItem("Unknown 1 (??)", BitConverter.ToInt32(CurrentLoadedExport.Data, pos), pos));
pos += 4;
ScriptHeaderBlocks.Add(new ScriptHeaderItem("Unknown 2 (Line??)", BitConverter.ToInt32(CurrentLoadedExport.Data, pos), pos));
pos += 4;
ScriptHeaderBlocks.Add(new ScriptHeaderItem("Unknown 3 (TextPos??)", BitConverter.ToInt32(CurrentLoadedExport.Data, pos), pos));
pos += 4;
ScriptHeaderBlocks.Add(new ScriptHeaderItem("Script Size", BitConverter.ToInt32(CurrentLoadedExport.Data, pos), pos));
pos += 4;
BytecodeStart = pos;
var func = UE3FunctionReader.ReadFunction(CurrentLoadedExport);
func.Decompile(new TextBuilder(), false); //parse bytecode
bool defined = func.HasFlag("Defined");
if (defined)
{
DecompiledScriptBlocks.Add(func.FunctionSignature + " {");
}
else
{
DecompiledScriptBlocks.Add(func.FunctionSignature);
}
for (int i = 0; i < func.Statements.statements.Count; i++)
{
Statement s = func.Statements.statements[i];
DecompiledScriptBlocks.Add(s);
if (s.Reader != null && i == 0)
{
//Add tokens read from statement. All of them point to the same reader, so just do only the first one.
TokenList.AddRange(s.Reader.ReadTokens.Select(x => x.ToBytecodeSingularToken(pos)).OrderBy(x => x.StartPos));
}
}
if (defined)
{
DecompiledScriptBlocks.Add("}");
}
//Footer
pos = CurrentLoadedExport.Data.Length - (func.HasFlag("Net") ? 17 : 15);
string flagStr = func.GetFlags();
ScriptFooterBlocks.Add(new ScriptHeaderItem("Native Index", BitConverter.ToInt16(CurrentLoadedExport.Data, pos), pos));
pos += 2;
ScriptFooterBlocks.Add(new ScriptHeaderItem("Operator Precedence", CurrentLoadedExport.Data[pos], pos));
pos++;
int functionFlags = BitConverter.ToInt32(CurrentLoadedExport.Data, pos);
ScriptFooterBlocks.Add(new ScriptHeaderItem("Flags", $"0x{functionFlags.ToString("X8")} {flagStr}", pos));
pos += 4;
//if ((functionFlags & func._flagSet.GetMask("Net")) != 0)
//{
//ScriptFooterBlocks.Add(new ScriptHeaderItem("Unknown 1 (RepOffset?)", BitConverter.ToInt16(CurrentLoadedExport.Data, pos), pos));
//pos += 2;
//}
int friendlyNameIndex = BitConverter.ToInt32(CurrentLoadedExport.Data, pos);
ScriptFooterBlocks.Add(new ScriptHeaderItem("Friendly Name Table Index", $"0x{friendlyNameIndex.ToString("X8")} {CurrentLoadedExport.FileRef.getNameEntry(friendlyNameIndex)}", pos));
pos += 4;
ScriptFooterBlocks.Add(new ScriptHeaderItem("Unknown 2", $"0x{BitConverter.ToInt16(CurrentLoadedExport.Data, pos).ToString("X4")}", pos));
pos += 4;
//ME1Explorer.Unreal.Classes.Function func = new ME1Explorer.Unreal.Classes.Function(data, CurrentLoadedExport.FileRef as ME1Package);
//try
//{
// Function_TextBox.Text = func.ToRawText();
//}
//catch (Exception e)
//{
// Function_TextBox.Text = "Error parsing function: " + e.Message;
//}
}
else
{
//Function_TextBox.Text = "Parsing UnrealScript Functions for this game is not supported.";
}
}