public static void HookMethod(
HookType hookType,
ModuleDefinition targetModule, MethodDefinition targetMethod,
MethodDefinition calleeMethod)
{
ILProcessor l = targetMethod.Body.GetILProcessor();
Instruction instInsertPoint = targetMethod.Body.Instructions.First();
if (hookType == HookType.PostCall || hookType == HookType.PostCallRet)
{
instInsertPoint = targetMethod.Body.Instructions.Last();
}
InsertInstDelegate o = newInst =>
{
l.InsertBefore(instInsertPoint, newInst);
};
// todo 2があるとは限らないので、良い方法を探す
int tmpLoc = 2;
if (hookType == HookType.PostCallRet)
{
// 戻り値をテンポラリにコピー
o(l.Create(OpCodes.Dup)); // 最後の ret 用にコピーを作る
o(l.Create(OpCodes.Stloc, tmpLoc));
}
int n = targetMethod.Parameters.Count + (targetMethod.IsStatic ? 0 : 1);
for (int i = 0; i < n; i++)
{
if (i == 0)
{
o(l.Create(OpCodes.Ldarg_0));
}
else
{
// ref 参照にしたい場合は OpCodes.Ldarga にすること
o(l.Create(OpCodes.Ldarg, i));
}
}
if (hookType == HookType.PostCallRet)
{
// 戻り値をテンポラリからスタックへコピー
o(l.Create(OpCodes.Ldloc, tmpLoc));
}
o(l.Create(OpCodes.Call, targetModule.Import(calleeMethod)));
// PreJumpの場合は元の処理を行わないように、そのままRetする
if (hookType == HookType.PreJump)
{
o(l.Create(OpCodes.Ret));
}
}
void PatchGetAnyMouseAndKey(MethodDefinition targetMethod)
{
ILProcessor l = targetMethod.Body.GetILProcessor();
Instruction instInsertPoint = targetMethod.Body.Instructions.First();
InsertInstDelegate o = newInst =>
{
l.InsertBefore(instInsertPoint, newInst);
};
o(l.Create(OpCodes.Ldc_I4, 1));
o(l.Create(OpCodes.Ret));
}
public static void HookMethod(
HookType hookType,
ModuleDefinition targetModule, MethodDefinition targetMethod,
MethodDefinition calleeMethod)
{
ILProcessor l = targetMethod.Body.GetILProcessor();
Instruction instInsertPoint = targetMethod.Body.Instructions.First();
if (hookType == HookType.PostCall)
{
instInsertPoint = targetMethod.Body.Instructions.Last();
}
InsertInstDelegate o = newInst =>
{
l.InsertBefore(instInsertPoint, newInst);
};
int n = targetMethod.Parameters.Count + (targetMethod.IsStatic ? 0 : 1);
for (int i = 0; i < n; i++)
{
if (i == 0)
{
o(l.Create(OpCodes.Ldarg_0));
}
else
{
// ref 参照にしたい場合は OpCodes.Ldarga にすること
o(l.Create(OpCodes.Ldarg, i));
}
}
o(l.Create(OpCodes.Call, targetModule.Import(calleeMethod)));
// PreJumpの場合は元の処理を行わないように、そのままRetする
if (hookType == HookType.PreJump)
{
o(l.Create(OpCodes.Ret));
}
}
void PatchIsForceSkip(MethodDefinition targetMethod)
{
Mono.Cecil.Rocks.MethodBodyRocks.SimplifyMacros(targetMethod.Body);
// GameMain.Instance.IsForceSkip() の戻り値を捨てて、true を積む
Instruction inst = targetMethod.Body.Instructions.FirstOrDefault(
i => i.OpCode == OpCodes.Callvirt && i.Operand.ToString().Contains("GameMain::IsForceSkip"));
if (inst == null)
{
return;
}
ILProcessor l = targetMethod.Body.GetILProcessor();
Instruction instInsertPoint = inst.Next;
InsertInstDelegate o = newInst =>
{
l.InsertBefore(instInsertPoint, newInst);
};
o(l.Create(OpCodes.Pop));
o(l.Create(OpCodes.Ldc_I4, 1));
Mono.Cecil.Rocks.MethodBodyRocks.OptimizeMacros(targetMethod.Body);
}
public override void Patch(ReiPatcher.Patch.PatcherArguments args)
{
PatchGetAnyMouseAndKey(GetMethod(
args.Assembly.MainModule.GetType("SceneLogo"),
"GetAnyMouseAndKey"));
PatchGetAnyMouseAndKey(GetMethod(
args.Assembly.MainModule.GetType("SceneWarning"),
"GetAnyMouseAndKey"));
TypeDefinition tCameraMain = args.Assembly.MainModule.GetType("CameraMain");
PatchIsForceSkip(GetMethod(tCameraMain, "FadeIn"));
PatchIsForceSkip(GetMethod(tCameraMain, "FadeInNoUI"));
PatchIsForceSkip(GetMethod(tCameraMain, "FadeOut"));
PatchIsForceSkip(GetMethod(tCameraMain, "FadeOutNoUI"));
{
// セーブロード画面のフェードアウト
MethodDefinition targetMethod = GetMethod(
args.Assembly.MainModule.GetType("TweenAlpha"), "Begin");
Mono.Cecil.Rocks.MethodBodyRocks.SimplifyMacros(targetMethod.Body);
foreach (Instruction inst in targetMethod.Body.Instructions)
{
// 第二引数 (duration) の値の代わりに DefaultUiFadeInTime を積む
if (inst.OpCode == OpCodes.Ldarg && ((ParameterDefinition)inst.Operand).Index == 1)
{
inst.OpCode = OpCodes.Ldc_R4;
inst.Operand = DefaultUiFadeInTime;
}
}
Mono.Cecil.Rocks.MethodBodyRocks.OptimizeMacros(targetMethod.Body);
}
{
// セーブロード画面のフェードイン
// ldc.r4 0.0
// stfld float32 TweenAlpha::from
// を
// ldc.r4 1.0
// stfld float32 TweenAlpha::from
// に書き換える
MethodDefinition targetMethod = GetMethod(
args.Assembly.MainModule.GetType("BasePanelMgr"), "FadeInPanel");
Mono.Cecil.Rocks.MethodBodyRocks.SimplifyMacros(targetMethod.Body);
foreach (Instruction inst in targetMethod.Body.Instructions)
{
if (inst.OpCode == OpCodes.Stfld && inst.Operand.ToString().Contains("TweenAlpha::from"))
{
inst.Previous.Operand = 1.0f;
}
}
Mono.Cecil.Rocks.MethodBodyRocks.OptimizeMacros(targetMethod.Body);
}
{
// 日付アイキャッチ画面スキップ
// Input.anyKeyの戻り値を破棄して、常にtrueにする
MethodDefinition targetMethod = GetMethod(
args.Assembly.MainModule.GetType("StartDailyMgr"), "Update");
Mono.Cecil.Rocks.MethodBodyRocks.SimplifyMacros(targetMethod.Body);
Instruction inst = targetMethod.Body.Instructions.First(
i => i.OpCode == OpCodes.Call && i.Operand.ToString().Contains("Input::get_anyKey"));
ILProcessor l = targetMethod.Body.GetILProcessor();
Instruction instInsertPoint = inst.Next;
InsertInstDelegate o = newInst =>
{
l.InsertBefore(instInsertPoint, newInst);
};
o(l.Create(OpCodes.Pop));
o(l.Create(OpCodes.Ldc_I4, 1));
Mono.Cecil.Rocks.MethodBodyRocks.OptimizeMacros(targetMethod.Body);
}
SetPatchedAttribute(args.Assembly, patchTag);
}
// メソッドをラップ
public static void WrapPostCallRet(
ModuleDefinition targetModule, TypeDefinition targetType,
MethodDefinition targetMethod,
MethodDefinition calleeMethod)
{
// 元メソッド名前を変更
var name = targetMethod.Name;
var newName = name + "_WrapPostCallRet";
while (targetType.Methods.Any(x => x.Name == newName))
{
newName = newName + "_";
}
// 元の名前を変更しただけだとモジュール内のメソッドの参照はそのままになってしまう
//targetMethod.Name = newName;
//var wrapper = new MethodDefinition(name, targetMethod.Attributes, targetMethod.ReturnType);
//ILProcessor l = wrapper.Body.GetILProcessor();
// ラッパーメソッド生成
var wrapper = new MethodDefinition(newName, targetMethod.Attributes, targetMethod.ReturnType);
Console.WriteLine("*** HookType.WrapPostCallRet: wrapping method " + name + " => " + newName);
// 引数をターゲットから複製
foreach (var p in targetMethod.Parameters)
{
wrapper.Parameters.Add(p);
}
// メソッド追加
targetType.Methods.Add(wrapper);
var wrapperBody = wrapper.Body;
// Bodyの置換
var body = targetMethod.Body;
targetMethod.Body = wrapper.Body;
wrapper.Body = body;
// ILGenerator
ILProcessor l = wrapperBody.GetILProcessor();
l.Emit(OpCodes.Ret);
Instruction instInsertPoint = wrapperBody.Instructions.First();
InsertInstDelegate o = newInst =>
{
l.InsertBefore(instInsertPoint, newInst);
};
int n = targetMethod.Parameters.Count + (targetMethod.IsStatic ? 0 : 1);
// 元メソッド呼び出し
for (int i = 0; i < n; i++)
{
if (i == 0)
{
o(l.Create(OpCodes.Ldarg_0));
}
else
{
// ref 参照にしたい場合は OpCodes.Ldarga にすること
o(l.Create(OpCodes.Ldarg, i));
}
}
//置換済み o(l.Create(OpCodes.Call, targetMethod));
o(l.Create(OpCodes.Call, wrapper));
// ExPostCallRet
for (int i = 0; i < n; i++)
{
if (i == 0)
{
o(l.Create(OpCodes.Ldarg_0));
}
else
{
// ref 参照にしたい場合は OpCodes.Ldarga にすること
o(l.Create(OpCodes.Ldarg, i));
}
}
o(l.Create(OpCodes.Call, targetModule.ImportReference(calleeMethod)));
}
public static void HookMethod(
HookType hookType,
ModuleDefinition targetModule, MethodDefinition targetMethod,
MethodDefinition calleeMethod)
{
Console.WriteLine("HookMethod " + hookType + "/" + targetModule + "/" + targetMethod + "/" + calleeMethod);
Console.WriteLine("ImportReference" + targetModule.ImportReference(calleeMethod));
Console.WriteLine("***");
ILProcessor l = targetMethod.Body.GetILProcessor();
Instruction instInsertPoint = targetMethod.Body.Instructions.First();
if (hookType == HookType.PostCallLast || hookType == HookType.PostCallLastReplace)
{
//instInsertPoint = targetMethod.Body.Instructions.Last();
//一番最後のretだけを検索してパッチする
Instruction ret = targetMethod.Body.Instructions.Last(i => i.OpCode == OpCodes.Ret);
int index = targetMethod.Body.Instructions.IndexOf(ret);
var il = targetMethod.Body.GetILProcessor();
InsertInstDelegate o2 = newInst =>
{
l.InsertBefore(ret, newInst);
};
if (hookType == HookType.PostCallLastReplace)
{
// 新しいretを追加
var ret2 = il.Create(OpCodes.Ret);
il.InsertAfter(ret, ret2);
// 元のretを置換
il.ReplaceInstruction(ret, il.Create(OpCodes.Nop));
ret = ret2;
}
// 引数をセット
int n2 = targetMethod.Parameters.Count + (targetMethod.IsStatic ? 0 : 1);
for (int i = 0; i < n2; i++)
{
if (i == 0)
{
o2(l.Create(OpCodes.Ldarg_0));
}
else
{
// ref 参照にしたい場合は OpCodes.Ldarga にすること
o2(l.Create(OpCodes.Ldarg, i));
}
}
// Hookメソッド呼び出し
il.InsertBefore(ret, il.Create(OpCodes.Call, targetModule.ImportReference(calleeMethod)));
//Instruction call = targetMethod.Body.Instructions.Last(i => i.OpCode == OpCodes.Ldarg_0);
// デバッグ用出力
for (int i = index; i < targetMethod.Body.Instructions.Count; i++)
{
Instruction testx = targetMethod.Body.Instructions[i];
Console.WriteLine("*** il.Code({0}): " + testx, i);
}
return;
}
if (hookType == HookType.PostCall || hookType == HookType.PostCallRet || hookType == HookType.ExPostCallRet)
{
//instInsertPoint = targetMethod.Body.Instructions.Last();
//全てのretを検索してパッチする
targetMethod.Body.Instructions
.Where(i => i.OpCode == OpCodes.Ret)
.ToList()
.ForEach(end =>
{
Console.WriteLine("*** il.InsertAfter:" + end);
//ret位置にジャンプしてくる処理への対策としてret位置をずらす
int index = targetMethod.Body.Instructions.IndexOf(end);
Console.WriteLine("*** index:" + index + "/" + (targetMethod.Body.Instructions.Count() - 1));
l.InsertAfter(end, l.Create(OpCodes.Ret));
l.ReplaceInstruction(end, l.Create(OpCodes.Nop)); // bug fix
Console.WriteLine("*** Replace({0}): Ret -> " + /*OpCodes.Nop*/ targetMethod.Body.Instructions[index], index);
Instruction next = targetMethod.Body.Instructions[index + 1];
Console.WriteLine("*** il.InsertBefore({0}):" + next, index + 1);
InsertInstDelegate o2 = newInst =>
{
l.InsertBefore(next, newInst);
};
// todo 2があるとは限らないので、良い方法を探す（ExPostCallRetなら一応汎用使用可）
int tmpLoc2 = 2;
if (hookType == HookType.PostCallRet)
{
// 戻り値をテンポラリにコピー
o2(l.Create(OpCodes.Dup)); // 最後の ret 用にコピーを作る
o2(l.Create(OpCodes.Stloc, tmpLoc2));
}
if (hookType == HookType.ExPostCallRet)
{
// 戻り値をテンポラリにコピーしない
// 元の戻り値は第一引数に入る
}
int iTest = 0;
int n2 = targetMethod.Parameters.Count + (targetMethod.IsStatic ? 0 : 1);
for (int i = 0; i < n2; i++)
{
if (i == 0)
{
o2(l.Create(OpCodes.Ldarg_0));
}
else
{
// ref 参照にしたい場合は OpCodes.Ldarga にすること
o2(l.Create(OpCodes.Ldarg, i));
}
iTest++;
}
if (hookType == HookType.PostCallRet)
{
// 戻り値をテンポラリからスタックへコピー
o2(l.Create(OpCodes.Ldloc, tmpLoc2));
}
o2(l.Create(OpCodes.Call, targetModule.ImportReference(calleeMethod)));
for (int i = 0; i <= iTest; i++)
{
Instruction testx = targetMethod.Body.Instructions[index + 1 + i];
Console.WriteLine("*** il.InsertBefore({0}):" + testx, index + 1 + i);
}
});
return;
}
Console.WriteLine("*** il.InsertBefore:" + instInsertPoint);
InsertInstDelegate o = newInst =>
{
l.InsertBefore(instInsertPoint, newInst);
};
/*ここにはこない
* // todo 2があるとは限らないので、良い方法を探す
* int tmpLoc = 2;
* if (hookType == HookType.PostCallRet)
* {
* // 戻り値をテンポラリにコピー
* o(l.Create(OpCodes.Dup)); // 最後の ret 用にコピーを作る
* o(l.Create(OpCodes.Stloc, tmpLoc));
* }*/
int n = targetMethod.Parameters.Count + (targetMethod.IsStatic ? 0 : 1);
for (int i = 0; i < n; i++)
{
if (i == 0)
{
o(l.Create(OpCodes.Ldarg_0));
}
else
{
// ref 参照にしたい場合は OpCodes.Ldarga にすること
o(l.Create(OpCodes.Ldarg, i));
}
}
/*ここにはこない
* if (hookType == HookType.PostCallRet)
* {
* // 戻り値をテンポラリからスタックへコピー
* o(l.Create(OpCodes.Ldloc, tmpLoc));
* }*/
o(l.Create(OpCodes.Call, targetModule.ImportReference(calleeMethod)));
// PreJumpの場合は元の処理を行わないように、そのままRetする
if (hookType == HookType.PreJump)
{
o(l.Create(OpCodes.Ret));
}
// ExPreCallの場合は戻り値がFalseなら、元の処理を行わないように、そのままRetする
if (hookType == HookType.ExPreCall)
{
Console.WriteLine("*** HookType.ExPreCall:" + instInsertPoint.Previous + "/" + String.Format("{0:X}", instInsertPoint.Previous.GetHashCode()));
//Console.WriteLine(l.Create(OpCodes.Brfalse, instInsertPoint));
//Console.WriteLine(l.Create(OpCodes.Brfalse_S, instInsertPoint));
o(l.Create(OpCodes.Brfalse_S, instInsertPoint));
Console.WriteLine("*** HookType.ExPreCall:" + instInsertPoint.Previous + "/" + String.Format("{0:X}", instInsertPoint.Previous.GetHashCode()) + " → " + instInsertPoint + "/" + String.Format("{0:X}", instInsertPoint.GetHashCode()));
o(l.Create(OpCodes.Ret));
Console.WriteLine("*** HookType.ExPreCall:" + instInsertPoint.Previous + "/" + String.Format("{0:X}", instInsertPoint.Previous.GetHashCode()));
Console.WriteLine("*** HookType.ExPreCall:" + instInsertPoint + "/" + String.Format("{0:X}", instInsertPoint.GetHashCode()));
}
}
