From 7076dc0655c745ce98744d1ac39e40f3ad921963 Mon Sep 17 00:00:00 2001
From: Blu3train <frtempra@gmail.com>
Date: Fri, 10 Nov 2023 19:30:51 +0100
Subject: [PATCH 1/2] Silkys2 engine hook

---
 texthook/engine/engine.cc  | 46 ++++++++++++++++++++++++++++++++++++++
 texthook/engine/engine.h   |  2 +-
 texthook/engine/match32.cc |  2 +-
 3 files changed, 48 insertions(+), 2 deletions(-)

diff --git a/texthook/engine/engine.cc b/texthook/engine/engine.cc
index c2c7abc..88a667e 100644
--- a/texthook/engine/engine.cc
+++ b/texthook/engine/engine.cc
@@ -12268,6 +12268,52 @@ bool InsertSilkysHook()
   return true;
 }
 
+bool Silkys2Filter(LPVOID data, DWORD *size, HookParam *, BYTE)
+{
+  auto text = reinterpret_cast<LPWSTR>(data);
+  auto len = reinterpret_cast<size_t *>(size);
+
+  WideStringCharReplacer(text, len, L"\\i", 2, L'\'');
+
+  return true;
+}
+
+bool InsertSilkys2Hook() 
+{
+  //by Blu3train
+  /*
+  * Sample games:
+  * https://vndb.org/r89173
+  */
+  const BYTE bytes[] = {
+    0x75, 0x10,                 // jne doukyuusei.exe+A5F7E
+    0x56,                    // push esi
+    0x57,                    // push edi
+    0xE8, XX4            // call doukyuusei.exe+A6120        << hook here
+  };
+  enum { addr_offset = sizeof(bytes) - 5 };
+
+  ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
+  ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
+  if (!addr) {
+    ConsoleOutput("vnreng:Silkys2: pattern not found");
+    return false;
+  }
+
+  HookParam hp = {};
+  hp.address = addr + addr_offset;
+  hp.offset = pusha_edi_off -4;
+  hp.index = 0;
+  hp.filter_fun = Silkys2Filter;
+  hp.type = USING_UNICODE | USING_STRING | NO_CONTEXT;
+  ConsoleOutput("vnreng: INSERT Silkys2");
+  NewHook(hp, "Silkys2");
+  return true;
+}
+
+bool InsertSilkysHooks()
+{ return InsertSilkysHook() || InsertSilkys2Hook();}
+
 /** jichi 6/1/2014 Eushully
  *  Insert to the last GetTextExtentPoint32A
  *
diff --git a/texthook/engine/engine.h b/texthook/engine/engine.h
index 5e167b2..016ffa0 100644
--- a/texthook/engine/engine.h
+++ b/texthook/engine/engine.h
@@ -141,7 +141,7 @@ bool InsertElfHook();           // elf: Silky.exe
 bool InsertScenarioPlayerHook();// sol-fa-soft: *.iar && *.sec5
 bool InsertSiglusHook();        // SiglusEngine: SiglusEngine.exe
 bool InsertSideBHook();         // SideB: Copyright side-B
-bool InsertSilkysHook();        // SilkysPlus
+bool InsertSilkysHooks();       // SilkysPlus
 bool InsertSyuntadaHook();      // Syuntada: dSoh.dat
 bool InsertSystem43Hook();      // System43@AliceSoft: AliceStart.ini
 bool InsertSystemAoiHook();     // SystemAoi: *.vfs
diff --git a/texthook/engine/match32.cc b/texthook/engine/match32.cc
index fffc4c7..d57f15f 100644
--- a/texthook/engine/match32.cc
+++ b/texthook/engine/match32.cc
@@ -163,7 +163,7 @@ bool DetermineEngineByFile1()
   // jichi 6/9/2015: Skip Silkys Sakura
   if ( // Almost the same as Silkys except mes.arc is replaced by Script.arc
       Util::CheckFile(L"data.arc") && Util::CheckFile(L"effect.arc") && Util::CheckFile(L"Script.arc")) {
-    InsertSilkysHook();
+    InsertSilkysHooks();
     return true;
   }
   if (Util::CheckFile(L"data\\pack\\*.cpz")) {

From 9e0977d31ea4db0bbb1a90c566d5fe01ec5e159a Mon Sep 17 00:00:00 2001
From: Blu3train <frtempra@gmail.com>
Date: Fri, 10 Nov 2023 19:39:59 +0100
Subject: [PATCH 2/2] code formatting adjustment

---
 texthook/engine/engine.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/texthook/engine/engine.cc b/texthook/engine/engine.cc
index 88a667e..5ead5fb 100644
--- a/texthook/engine/engine.cc
+++ b/texthook/engine/engine.cc
@@ -12286,10 +12286,10 @@ bool InsertSilkys2Hook()
   * https://vndb.org/r89173
   */
   const BYTE bytes[] = {
-    0x75, 0x10,                 // jne doukyuusei.exe+A5F7E
+    0x75, 0x10,              // jne doukyuusei.exe+A5F7E
     0x56,                    // push esi
     0x57,                    // push edi
-    0xE8, XX4            // call doukyuusei.exe+A6120        << hook here
+    0xE8, XX4                // call doukyuusei.exe+A6120        << hook here
   };
   enum { addr_offset = sizeof(bytes) - 5 };