From 63324fe728976f396a099b62c0500ddc8f74d632 Mon Sep 17 00:00:00 2001
From: Blu3train <frtempra@gmail.com>
Date: Tue, 7 Nov 2023 00:01:56 +0100
Subject: [PATCH] Kiss engine hook

---
 texthook/engine/engine.cc  | 36 ++++++++++++++++++++++++++++++++++++
 texthook/engine/engine.h   |  1 +
 texthook/engine/match32.cc |  4 ++++
 3 files changed, 41 insertions(+)

diff --git a/texthook/engine/engine.cc b/texthook/engine/engine.cc
index c2c7abc6..50759dbe 100644
--- a/texthook/engine/engine.cc
+++ b/texthook/engine/engine.cc
@@ -21728,6 +21728,42 @@ bool InsertNamcoPS2Hook()
 }
 #endif // 0
 
+bool InsertKissHook() {
+	//by Blu3train
+	/*
+	* Sample games:
+	* https://vndb.org/v1767
+	*/
+	const BYTE bytes[] = {
+		0xC1, 0xE9, 0x02,              // shr ecx,02      <- hook here
+		0xF3, 0xA5,                    // repe movsd 
+		0x8B, 0xCA,                    // mov ecx,edx
+		0x55,                          // push ebp
+		0x83, 0xE1, 0x03,              // and ecx,03
+		0xF3, 0xA4,                    // repe movsb 
+		0x8D, 0x4C, 0x24, 0x18,        // lea ecx,[esp+18]
+		0xE8, XX4,                     // call kano.exe+6310
+		0x8B, 0x0D, XX4                // mov ecx,[kano.exe+211F8C]
+	};
+
+	ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
+	ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
+	if (!addr) {
+		ConsoleOutput("vnreng:Kiss: pattern not found");
+		return false;
+	}
+
+	HookParam hp = {};
+	hp.address = addr;
+	hp.offset = pusha_esi_off -4;
+    hp.index = 0;
+	hp.type = USING_STRING | NO_CONTEXT;
+	ConsoleOutput("vnreng: INSERT Kiss");
+	NewHook(hp, "Kiss");
+
+	return true;
+}
+
 } // namespace Engine
 
 // EOF
diff --git a/texthook/engine/engine.h b/texthook/engine/engine.h
index 5e167b25..c69af2cb 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 InsertKissHook();          // Kiss: GameData/*.arc
 
 void InsertBrunsHook();         // Bruns: bruns.exe
 void InsertIronGameSystemHook();// IroneGameSystem: igs_sample.exe
diff --git a/texthook/engine/match32.cc b/texthook/engine/match32.cc
index fffc4c76..b4f4b371 100644
--- a/texthook/engine/match32.cc
+++ b/texthook/engine/match32.cc
@@ -370,6 +370,10 @@ bool DetermineEngineByFile3()
 
 bool DetermineEngineByFile4()
 {
+  if (Util::CheckFile(L"GameData/*.arc")) {
+    if (InsertKissHook())
+      return true;
+  }
   if (Util::CheckFile(L"EAGLS.dll")) { // jichi 3/24/2014: E.A.G.L.S
     //ConsoleOutput("vnreng: IGNORE EAGLS");
     InsertEaglsHook();