private void InjectOnionDoWorldGen()
{
try
{
var doWorldGenInitialiseBody = CecilHelper.GetMethodDefinition(_csharpModule, "OfflineWorldGen", "DoWordGenInitialise").Body;
var callResetInstruction = doWorldGenInitialiseBody
.Instructions
.Where(instruction => instruction.OpCode == OpCodes.Call)
.Reverse()
.Skip(3)
.First();
var instructionInserter = new InstructionInserter(doWorldGenInitialiseBody);
instructionInserter.InsertBefore(callResetInstruction, Instruction.Create(OpCodes.Pop));
instructionInserter.InsertBefore(callResetInstruction, Instruction.Create(OpCodes.Pop));
_onionToCSharpInjector.InjectBefore(
"Hooks", "OnDoOfflineWorldGen",
doWorldGenInitialiseBody,
callResetInstruction);
_csharpInstructionRemover.ReplaceByNop(doWorldGenInitialiseBody, callResetInstruction);
}
catch (Exception e)
{
Logger.Log("World generation injection failed");
Logger.Log(e);
Failed = true;
}
}
private void InjectOnionDebugHandler()
{
var debugHandler = _csharpModule
.Types
.FirstOrDefault(type => type.Name == "DebugHandler");
if (debugHandler != null)
{
var debugHandlerEnabledProperty = debugHandler
.Properties
.FirstOrDefault(property => property.Name == "enabled");
if (debugHandlerEnabledProperty != null)
{
debugHandlerEnabledProperty
.SetMethod
.IsPublic = true;
}
}
else
{
Logger.Log("Can't find type DebugHandler");
Failed = true;
}
var debugHandlerConstructorBody = CecilHelper.GetMethodDefinition(_csharpModule, debugHandler, ".ctor").Body;
var lastInstruction = debugHandlerConstructorBody.Instructions.Last();
_onionToCSharpInjector.InjectBefore("Hooks", "OnDebugHandlerCtor", debugHandlerConstructorBody, lastInstruction);
}
public void ClearAllButLast(string typeName, string methodName)
{
var method = CecilHelper.GetMethodDefinition(_targetModule, typeName, methodName);
var methodBody = method.Body;
ClearAllButLast(methodBody);
}
public void ReplaceByNopAt(string typeName, string methodName, int instructionIndex)
{
var method = CecilHelper.GetMethodDefinition(_targetModule, typeName, methodName);
var methodBody = method.Body;
ReplaceByNop(methodBody, methodBody.Instructions[instructionIndex]);
}
public void InjectBefore(
string sourceTypeName,
string sourceMethodName,
string targetTypeName,
string targetMethodName,
int instructionIndex,
bool includeCallingObject = false,
int includeArgumentCount = 0,
bool passArgumentsByRef = false,
bool useFullName = false)
{
MethodBody targetMethodBody = CecilHelper
.GetMethodDefinition(
this._targetModule,
targetTypeName,
targetMethodName,
useFullName).Body;
Instruction instruction = targetMethodBody.Instructions[instructionIndex];
this.InjectBefore(
sourceTypeName,
sourceMethodName,
targetMethodBody,
instruction,
includeCallingObject,
includeArgumentCount,
passArgumentsByRef,
useFullName);
}
public void ClearAllButLast(string typeName, string methodName)
{
MethodDefinition method = CecilHelper.GetMethodDefinition(this._targetModule, typeName, methodName);
MethodBody methodBody = method.Body;
this.ClearAllButLast(methodBody);
}
public void InjectBefore(string sourceTypeName, string sourceMethodName, MethodBody targetMethodBody,
Instruction targetInstruction, bool includeCallingObject = false, int includeArgumentCount = 0, bool passArgumentsByRef = false, bool useFullName = false)
{
var sourceMethod = CecilHelper.GetMethodDefinition(_sourceModule, sourceTypeName, sourceMethodName, useFullName: useFullName);
var sourceMethodReference = CecilHelper.GetMethodReference(_targetModule, sourceMethod);
InjectBefore(sourceMethodReference, targetMethodBody, targetInstruction, includeCallingObject, includeArgumentCount, passArgumentsByRef);
}
// TODO: use other sprite, refactor
private void AddOverlayButton()
{
_csharpPublisher.MakeFieldPublic("OverlayMenu", "overlay_toggle_infos");
var overlayMenu = _csharpModule.Types.First(type => type.Name == "OverlayMenu");
overlayMenu.NestedTypes.First(nestedType => nestedType.Name == "OverlayToggleInfo").IsPublic = true;
var onPrefabInitBody = CecilHelper.GetMethodDefinition(_csharpModule, overlayMenu, "OnPrefabInit").Body;
var loadOverlayToggleInfosInstuction = onPrefabInitBody.Instructions.First(instruction => instruction.OpCode == OpCodes.Ldfld);
_coreToCSharpInjector.InjectBefore(
"OverlayMenuManager", "OnOverlayMenuPrefabInit",
onPrefabInitBody, loadOverlayToggleInfosInstuction.Next, true);
}
private void InjectOnionCameraController()
{
const string TypeName = "CameraController";
_csharpPublisher.MakeFieldPublic(TypeName, "maxOrthographicSize");
_csharpPublisher.MakeFieldPublic(TypeName, "maxOrthographicSizeDebug");
var cameraControllerOnSpawnBody = CecilHelper.GetMethodDefinition(_csharpModule, TypeName, "OnSpawn").Body;
var restoreCall = cameraControllerOnSpawnBody.Instructions.Last(instruction => instruction.OpCode == OpCodes.Call);
_onionToCSharpInjector.InjectBefore(
"Hooks",
"OnCameraControllerCtor",
cameraControllerOnSpawnBody,
restoreCall,
true);
}
private void AddDefaultKeybinding(ModuleDefinition CSharpModule, ModuleDefinition firstPassModule, KKeyCode keyCode, Modifier keyModifier, Action action, string screen = "Root")
{
var beforeFieldInit = CecilHelper.GetMethodDefinition(firstPassModule, CecilHelper.GetTypeDefinition(firstPassModule, "GameInputMapping"), ".cctor");
var lastKeybindingDeclarationEnd = beforeFieldInit.Body.Instructions.Last(instruction => instruction.OpCode == OpCodes.Stobj);
var stoBindingEntryInstruction = beforeFieldInit.Body.Instructions.First(instruction => instruction.OpCode == OpCodes.Stobj);
var newBindingEntryInstruction = beforeFieldInit.Body.Instructions.First(instruction => instruction.OpCode == OpCodes.Newobj);
var lastDupInstruction = beforeFieldInit.Body.Instructions.LastOrDefault(instr => instr.OpCode == OpCodes.Dup);
if (lastDupInstruction != null)
{
var lastEntryIndex = Convert.ToInt32(lastDupInstruction.Next.Operand);
var instructionsToAdd = new List <Instruction>
{
Instruction.Create(OpCodes.Dup),
Instruction.Create(OpCodes.Ldc_I4, lastEntryIndex + 1), // index
Instruction.Create(OpCodes.Ldelema, (TypeReference)stoBindingEntryInstruction.Operand),
Instruction.Create(OpCodes.Ldstr, screen),
Instruction.Create(OpCodes.Ldc_I4_S, (sbyte)16), // gamepad button
Instruction.Create(OpCodes.Ldc_I4, (int)keyCode),
Instruction.Create(OpCodes.Ldc_I4, (int)keyModifier),
Instruction.Create(OpCodes.Ldc_I4, (int)action),
Instruction.Create(OpCodes.Ldc_I4_1), // rebindable = true
Instruction.Create(OpCodes.Ldc_I4_1), // ignore root conflicts = true
newBindingEntryInstruction, // create new object
stoBindingEntryInstruction // store in array
};
var ILProcessor = beforeFieldInit.Body.GetILProcessor();
// increase array size by one
var arraySizeSetInstruction = beforeFieldInit.Body.Instructions.First();
ILProcessor.Replace(arraySizeSetInstruction, Instruction.Create(OpCodes.Ldc_I4, (int)arraySizeSetInstruction.Operand + 1));
//
new InstructionInserter(ILProcessor).InsertAfter(lastKeybindingDeclarationEnd, instructionsToAdd);
}
else
{
Logger.Log("Can't find last duplication instruction at GameInputMapping.cctor");
Failed = true;
}
}
private void FixGameUpdateExceptionHandling()
{
var handler = new ExceptionHandler(ExceptionHandlerType.Finally);
var methodBody = CecilHelper.GetMethodDefinition(_csharpModule, "Game", "Update").Body;
var methodInstructions = methodBody.Instructions;
handler.TryStart = methodInstructions.First(instruction => instruction.OpCode == OpCodes.Ldsfld);
var tryEndInstruction = methodInstructions.Last(instruction => instruction.OpCode == OpCodes.Ldloca_S);
handler.TryEnd = tryEndInstruction;
handler.HandlerStart = tryEndInstruction;
handler.HandlerEnd = methodInstructions.Last();
handler.CatchType = _csharpModule.Import(typeof(Exception));
methodBody.ExceptionHandlers.Clear();
methodBody.ExceptionHandlers.Add(handler);
}
// TODO: notify user when injection fails
private void ExtendMaxActionCount()
{
const int MaxActionCount = 1000;
TypeDefinition kInputController =
this._firstPassModule.Types.FirstOrDefault(type => type.Name == "KInputController");
if (kInputController != null)
{
TypeDefinition keyDef =
kInputController.NestedTypes.FirstOrDefault(nestedType => nestedType.Name == "KeyDef");
if (keyDef != null)
{
MethodBody keyDefConstructorBody = keyDef.Methods.First(method => method.Name == ".ctor").Body;
keyDefConstructorBody.Instructions.Last(instruction => instruction.OpCode == OpCodes.Ldc_I4)
.Operand = MaxActionCount;
MethodBody kInputControllerConstructorBody = CecilHelper
.GetMethodDefinition(
this._firstPassModule,
kInputController,
".ctor").Body;
kInputControllerConstructorBody
.Instructions.First(instruction => instruction.OpCode == OpCodes.Ldc_I4).Operand = MaxActionCount;
}
else
{
Console.WriteLine("Can't find type KInputController.KeyDef");
this.Failed = true;
}
}
else
{
Console.WriteLine("Can't find type KInputController");
this.Failed = true;
}
}
private void AttachCustomActionToToggle()
{
var onToggleSelectMethod = CecilHelper.GetMethodDefinition(_csharpModule, "OverlayMenu", "OnToggleSelect");
var onToggleSelectMethodBody = onToggleSelectMethod.Body;
var firstInstruction = onToggleSelectMethodBody.Instructions.First();
var instructionsToAdd = new List <Instruction>
{
Instruction.Create(OpCodes.Brfalse, firstInstruction),
Instruction.Create(OpCodes.Ret)
};
new InstructionInserter(onToggleSelectMethod).InsertBefore(firstInstruction, instructionsToAdd);
_materialToCSharpInjector.InjectAsFirst(
"InjectionEntry",
"EnterToggle",
onToggleSelectMethodBody,
true, 1);
}
public void MakeMethodPublic(string typeName, string methodName)
{
MethodDefinition method = CecilHelper.GetMethodDefinition(this._targetModule, typeName, methodName);
method.IsPublic = true;
}
private MethodBody GetMethodBody(string typeName, string methodName) => CecilHelper.GetMethodDefinition(_targetModule, typeName, methodName).Body;