From 94a48e2e39e533f3549938249273f02b90d037f1 Mon Sep 17 00:00:00 2001
From: Blu3train <frtempra@gmail.com>
Date: Mon, 29 Jan 2024 18:47:51 +0100
Subject: [PATCH] DebonosuWorks engine hook

---
 texthook/engine/engine.cc  | 31 +++++++++++++++++++++++++++++++
 texthook/engine/engine.h   |  1 +
 texthook/engine/match32.cc |  4 ++++
 3 files changed, 36 insertions(+)

diff --git a/texthook/engine/engine.cc b/texthook/engine/engine.cc
index c2c7abc..c1378b4 100644
--- a/texthook/engine/engine.cc
+++ b/texthook/engine/engine.cc
@@ -21728,6 +21728,37 @@ bool InsertNamcoPS2Hook()
 }
 #endif // 0
 
+bool InsertDebonosuWorksHook() {
+	//by Blu3train
+	/*
+	* Sample games:
+	* https://vndb.org/v47955
+	*/
+	const BYTE bytes[] = {
+		0xCC,                       // int 3 
+		0x53,                       // push ebx      <- hook here
+		0x56,                       // push esi
+		0x57,                       // push edi
+		0x8B, 0xF9,                 // mov edi,ecx
+		0xC6, 0x05, XX4, 0x00       // mov byte ptr ["Kagura Genesis.exe"+DCB170],00
+	};
+	ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStopAddress);
+	if (!addr) {
+		ConsoleOutput("vnreng:DebonosuWorks: pattern not found");
+		return false;
+	}
+
+	HookParam hp = {};
+	hp.address = addr + 1;
+	hp.offset = pusha_eax_off -4;
+    hp.index = 0;
+	hp.type = USING_STRING;
+	ConsoleOutput("vnreng: INSERT DebonosuWorks");
+	NewHook(hp, "DebonosuWorks");
+
+	return true;
+}
+
 } // namespace Engine
 
 // EOF
diff --git a/texthook/engine/engine.h b/texthook/engine/engine.h
index 5e167b2..7d00c4f 100644
--- a/texthook/engine/engine.h
+++ b/texthook/engine/engine.h
@@ -156,6 +156,7 @@ bool InsertWillPlusHook();      // WillPlus: Rio.arc
 bool InsertWolfHook();          // Wolf: Data.wolf
 bool InsertYukaSystem2Hook();   // YukaSystem2: *.ykc
 bool InsertYurisHook();         // YU-RIS: *.ypf
+bool InsertDebonosuWorksHook(); // DebonosuWorks: resource string
 
 void InsertBrunsHook();         // Bruns: bruns.exe
 void InsertIronGameSystemHook();// IroneGameSystem: igs_sample.exe
diff --git a/texthook/engine/match32.cc b/texthook/engine/match32.cc
index fffc4c7..ed42fa8 100644
--- a/texthook/engine/match32.cc
+++ b/texthook/engine/match32.cc
@@ -370,6 +370,10 @@ bool DetermineEngineByFile3()
 
 bool DetermineEngineByFile4()
 {
+  if (Util::SearchResourceString(L"でぼの巣製作所")) {
+    if (InsertDebonosuWorksHook())
+      return true;
+  }
   if (Util::CheckFile(L"EAGLS.dll")) { // jichi 3/24/2014: E.A.G.L.S
     //ConsoleOutput("vnreng: IGNORE EAGLS");
     InsertEaglsHook();