Add skew cheat

src/Hook.cpp

@@ -2,9 +2,12 @@
 
 #include "Hook.h"
 #include "input/MessageHook.h"
+#include "instance/Instances.h"
+#include "game/Game.h"
 
 // Modules
 #include "modules/InstanceViewer.h"
+#include "modules/Skew.h"
 
 #include "cdc/render/PCDeviceManager.h"
 
@@ -29,6 +32,9 @@ Hook::Hook() : m_menu(nullptr), m_modules()
 
 void Hook::Initialize()
 {
+	Instances::Init();
+	Game::Init();
+
 	RegisterModules();
 
 	MH_Initialize();
@@ -75,6 +81,7 @@ void Hook::RegisterModule()
 void Hook::RegisterModules()
 {
 	RegisterModule<InstanceViewer>();
+	RegisterModule<Skew>();
 }
 
 Hook& Hook::GetInstance()

src/game/Game.cpp

@@ -0,0 +1,15 @@
+#include "Game.h"
+
+void Game::Init()
+{
+}
+
+Instance* Game::GetPlayerInstance()
+{
+	return GetGameTracker()->playerInstance;
+}
+
+GameTracker* Game::GetGameTracker()
+{
+	return (GameTracker*)0x838330;
+}

src/game/Game.h

@@ -0,0 +1,61 @@
+#pragma once
+
+#include "instance/Instance.h"
+
+struct menu_t;
+struct MemCardInfo;
+struct Level;
+struct VertexPool;
+
+struct WipeInfo
+{
+	float wipeCur;
+	float wipeTarget;
+	float wipeStep;
+};
+
+struct GameTracker
+{
+	menu_t* menu;
+	MemCardInfo* memcard;
+	Level* level;
+	Instance* playerInstance;
+	VertexPool* vertexPool;
+
+	int debugFlags;
+	int debugFlags2;
+	int debugFlags3;
+	int debugFlags4;
+
+	WipeInfo wipes[12];
+
+	unsigned int displayFrameCount;
+	unsigned int frameCount;
+
+	int fpsFast;
+	int gameFlags;
+	int streamFlags;
+	Level* mainDrawUnit;
+
+	char baseAreaName[20];
+
+	char levelDone;
+	char levelChange;
+	char loadingDisplayType;
+	char gameMode;
+	char cheatMode;
+	char savingGame;
+
+	char pad1[66];
+
+	float timeMult;
+};
+
+class Game
+{
+public:
+	static void Init();
+
+	static Instance* GetPlayerInstance();
+	static GameTracker* GetGameTracker();
+};

src/instance/Instances.cpp

@@ -1,5 +1,12 @@
 #include "Instances.h"
 
+static void(*INSTANCE_Post)(Instance*, int, int);
+
+void Instances::Init()
+{
+	INSTANCE_Post = reinterpret_cast<void(*)(Instance*, int, int)>(0x4580B0);
+}
+
 void Instances::Iterate(std::function<void(Instance*)> callback)
 {
 	auto first = *(Instance**)0x817D64;
@@ -8,4 +15,9 @@ void Instances::Iterate(std::function<void(Instance*)> callback)
 	{
 		callback(instance);
 	}
+}
+
+void Instances::Post(Instance* instance, int message, int data)
+{
+	INSTANCE_Post(instance, message, data);
 }

src/instance/Instances.h

@@ -7,5 +7,8 @@
 class Instances
 {
 public:
+	static void Init();
+
 	static void Iterate(std::function<void(Instance*)> callback);
+	static void Post(Instance* instance, int message, int data);
 };

src/modules/Skew.cpp

@@ -0,0 +1,48 @@
+#include "Skew.h"
+
+#include "instance/Instances.h"
+#include "game/Game.h"
+
+void Skew::ToggleSkew()
+{
+	auto tracker = Game::GetGameTracker();
+
+	tracker->cheatMode = !tracker->cheatMode;
+	Instances::Post(tracker->playerInstance, 1048592, tracker->cheatMode);
+}
+
+void Skew::Process(UINT msg, WPARAM wParam)
+{
+	// TODO different keyboard layouts
+	// TODO configurable horizontal speed
+
+	auto player = Game::GetPlayerInstance();
+	auto tracker = Game::GetGameTracker();
+
+	auto speed = 200.f * tracker->timeMult;
+
+	if (msg == WM_KEYDOWN && wParam == 0x51)
+	{
+		player->position.z += speed;
+	}
+
+	if (msg == WM_KEYDOWN && wParam == 0x5A)
+	{
+		player->position.z -= speed;
+	}
+}
+
+void Skew::OnInput(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+	if (msg == WM_KEYUP && wParam == VK_F2)
+	{
+		ToggleSkew();
+	}
+
+	auto tracker = Game::GetGameTracker();
+
+	if (tracker->cheatMode)
+	{
+		Process(msg, wParam);
+	}
+}

src/modules/Skew.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include "Module.h"
+
+class Skew : public Module
+{
+private:
+	void ToggleSkew();
+	void Process(UINT msg, WPARAM wParam);
+
+public:
+	virtual void OnInput(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
+};