From 5c7632e91932dce0f7e9cac43f06ae7b8ae8b68b Mon Sep 17 00:00:00 2001
From: Blu3train <frtempra@gmail.com>
Date: Sat, 14 Oct 2023 01:54:50 +0200
Subject: [PATCH] Triangle Pix 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 c2c7abc..6936408 100644
--- a/texthook/engine/engine.cc
+++ b/texthook/engine/engine.cc
@@ -21728,6 +21728,42 @@ bool InsertNamcoPS2Hook()
 }
 #endif // 0
 
+bool InsertTrianglePixHook() 
+{
+  //by Blu3train
+    /*
+    * Sample games:
+    * https://vndb.org/v38070
+    * https://vndb.org/v42090
+    * https://vndb.org/v41025
+    */
+  const BYTE bytes[] = {
+    0x50,                      // push eax           << hook here
+    0xE8, XX4,                 // call FinalIgnition.exe+4DE10
+    0x8B, 0x83, XX4,           // mov eax,[ebx+0000DCA0]
+    0x8D, 0x8D, XX4,           // lea ecx,[ebp-0000022C]
+    0x83, 0x7D, 0x44, 0x10,    // cmp dword ptr [ebp+44],10
+    0xFF, 0x75, 0x40           // push [ebp+40]
+  };
+
+  ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
+  ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
+  if (!addr) {
+    ConsoleOutput("vnreng:TrianglePix: pattern not found");
+    return false;
+  }
+
+  HookParam hp = {};
+  hp.address = addr;
+  hp.offset = pusha_eax_off -4;
+  hp.index = 0;
+  hp.type = USING_UTF8 | USING_STRING | NO_CONTEXT;
+  hp.filter_fun = NewLineCharToSpaceFilter;
+  ConsoleOutput("vnreng: INSERT TrianglePix");
+  NewHook(hp, "TrianglePix");
+  return true;
+}
+
 } // namespace Engine
 
 // EOF
diff --git a/texthook/engine/engine.h b/texthook/engine/engine.h
index 5e167b2..3f7ef77 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 InsertTrianglePixHook();   // Triangle Pix: pix.bin
 
 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..5104477 100644
--- a/texthook/engine/match32.cc
+++ b/texthook/engine/match32.cc
@@ -370,6 +370,10 @@ bool DetermineEngineByFile3()
 
 bool DetermineEngineByFile4()
 {
+  if (Util::CheckFile(L"pix.bin")) {
+    if (InsertTrianglePixHook())
+      return true;
+  }
   if (Util::CheckFile(L"EAGLS.dll")) { // jichi 3/24/2014: E.A.G.L.S
     //ConsoleOutput("vnreng: IGNORE EAGLS");
     InsertEaglsHook();