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@erorcun
erorcun committed Dec 29, 2019
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Showing 9 changed files with 3,148 additions and 0 deletions.
723 changes: 723 additions & 0 deletions LCSSnow/Camera.h

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855 changes: 855 additions & 0 deletions LCSSnow/GTA.h

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462 changes: 462 additions & 0 deletions LCSSnow/INIReader.h

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688 changes: 688 additions & 0 deletions LCSSnow/LCSSnow.cpp

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154 changes: 154 additions & 0 deletions LCSSnow/MemoryMgr.h
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#ifndef __MEMORYMGR
#define __MEMORYMGR

#define WRAPPER __declspec(naked)
#define DEPRECATED __declspec(deprecated)
#define EAXJMP(a) { _asm mov eax, a _asm jmp eax }
#define VARJMP(a) { _asm jmp a }
#define WRAPARG(a) UNREFERENCED_PARAMETER(a)

#define NOVMT __declspec(novtable)
#define SETVMT(a) *((DWORD_PTR*)this) = (DWORD_PTR)a

enum
{
PATCH_CALL,
PATCH_JUMP,
PATCH_NOTHING,
};

enum
{
III_10 = 1,
III_11,
III_STEAM,
VC_10,
VC_11,
VC_STEAM
};

extern int gtaversion;

template<typename T>
inline T AddressByVersion(addr addressIII10, addr addressIII11, addr addressIIISteam, addr addressvc10, addr addressvc11, addr addressvcSteam)
{
if (gtaversion == -1) {
if (*(addr*)0x5C1E75 == 0xB85548EC) gtaversion = III_10;
else if (*(addr*)0x5C2135 == 0xB85548EC) gtaversion = III_11;
else if (*(addr*)0x5C6FD5 == 0xB85548EC) gtaversion = III_STEAM;
else if (*(addr*)0x667BF5 == 0xB85548EC) gtaversion = VC_10;
else if (*(addr*)0x667C45 == 0xB85548EC) gtaversion = VC_11;
else if (*(addr*)0x666BA5 == 0xB85548EC) gtaversion = VC_STEAM;
else gtaversion = 0;
}
switch (gtaversion) {
case III_10:
return (T)addressIII10;
case III_11:
return (T)addressIII11;
case III_STEAM:
return (T)addressIIISteam;
case VC_10:
return (T)addressvc10;
case VC_11:
return (T)addressvc11;
case VC_STEAM:
return (T)addressvcSteam;
default:
return (T)0;
}
}

inline bool
is10(void)
{
return gtaversion == III_10 || gtaversion == VC_10;
}

inline bool
isIII(void)
{
return gtaversion >= III_10 && gtaversion <= III_STEAM;
}

inline bool
isVC(void)
{
return gtaversion >= VC_10 && gtaversion <= VC_STEAM;
}

#define PTRFROMCALL(addr) (uint32_t)(*(uint32_t*)((uint32_t)addr+1) + (uint32_t)addr + 5)
#define INTERCEPT(saved, func, a) \
{ \
saved = PTRFROMCALL(a); \
InjectHook(a, func); \
}

template<typename T, typename AT> inline void
Patch(AT address, T value)
{
DWORD dwProtect[2];
VirtualProtect((void*)address, sizeof(T), PAGE_EXECUTE_READWRITE, &dwProtect[0]);
*(T*)address = value;
VirtualProtect((void*)address, sizeof(T), dwProtect[0], &dwProtect[1]);
}

template<typename AT> inline void
Nop(AT address, unsigned int nCount)
{
DWORD dwProtect[2];
VirtualProtect((void*)address, nCount, PAGE_EXECUTE_READWRITE, &dwProtect[0]);
memset((void*)address, 0x90, nCount);
VirtualProtect((void*)address, nCount, dwProtect[0], &dwProtect[1]);
}

template<typename AT, typename HT> inline void
InjectHook(AT address, HT hook, unsigned int nType = PATCH_NOTHING)
{
DWORD dwProtect[2];
switch (nType)
{
case PATCH_JUMP:
VirtualProtect((void*)address, 5, PAGE_EXECUTE_READWRITE, &dwProtect[0]);
*(BYTE*)address = 0xE9;
break;
case PATCH_CALL:
VirtualProtect((void*)address, 5, PAGE_EXECUTE_READWRITE, &dwProtect[0]);
*(BYTE*)address = 0xE8;
break;
default:
VirtualProtect((void*)((DWORD)address + 1), 4, PAGE_EXECUTE_READWRITE, &dwProtect[0]);
break;
}
DWORD dwHook;
_asm
{
mov eax, hook
mov dwHook, eax
}

*(ptrdiff_t*)((DWORD)address + 1) = (DWORD)dwHook - (DWORD)address - 5;
if (nType == PATCH_NOTHING)
VirtualProtect((void*)((DWORD)address + 1), 4, dwProtect[0], &dwProtect[1]);
else
VirtualProtect((void*)address, 5, dwProtect[0], &dwProtect[1]);
}

inline void ExtractCall(void* dst, addr a)
{
*(addr*)dst = (addr)(*(addr*)(a + 1) + a + 5);
}
template<typename T>
inline void InterceptCall(void* dst, T func, addr a)
{
ExtractCall(dst, a);
InjectHook(a, func);
}
template<typename T>
inline void InterceptVmethod(void* dst, T func, addr a)
{
*(addr*)dst = *(addr*)a;
Patch(a, func);
}

#endif
45 changes: 45 additions & 0 deletions LCSSnow/common.h
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#pragma once
#define WIN32_LEAN_AND_MEAN

#define _CRT_SECURE_NO_WARNINGS
#define _USE_MATH_DEFINES
#pragma warning(disable: 4244) // int to float
#pragma warning(disable: 4800) // int to bool
#pragma warning(disable: 4305) // double to float
#pragma warning(disable: 4838) // narrowing conversion
#pragma warning(disable: 4996) // POSIX names

#define PI 3.1415927f
#define TWOPI (PI*2)
#define HALFPI (PI/2)
#define DEGTORAD(x) ((x) * PI / 180.0f)
#define RADTODEG(x) ((x) * 180.0f / PI)

#include <windows.h>
#include <stdio.h>
#include <stdint.h>
#include <assert.h>
#include <math.h>
#include <new>
#include <string>

typedef uint8_t uint8;
typedef int8_t int8;
typedef uint16_t uint16;
typedef int16_t int16;
typedef uint32_t uint32;
typedef int32_t int32;
typedef uintptr_t uintptr;
typedef uint64_t uint64;
typedef int64_t int64;
// hardcode ucs-2
typedef uint16_t wchar;

typedef uintptr_t addr;
#define nil nullptr

inline float RecipSqrt(float x, float y) { return x / sqrtf(y); }
inline float RecipSqrt(float x) { return RecipSqrt(1.0f, x); }

#define clamp(v, low, high) ((v)<(low) ? (low) : (v)>(high) ? (high) : (v))
#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))
154 changes: 154 additions & 0 deletions LCSSnow/debugmenu_public.h
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extern "C" {

typedef void (*TriggerFunc)(void);

struct DebugMenuEntry;

typedef DebugMenuEntry *(*DebugMenuAddInt8_TYPE)(const char *path, const char *name, int8_t *ptr, TriggerFunc triggerFunc, int8_t step, int8_t lowerBound, int8_t upperBound, const char **strings);
typedef DebugMenuEntry *(*DebugMenuAddInt16_TYPE)(const char *path, const char *name, int16_t *ptr, TriggerFunc triggerFunc, int16_t step, int16_t lowerBound, int16_t upperBound, const char **strings);
typedef DebugMenuEntry *(*DebugMenuAddInt32_TYPE)(const char *path, const char *name, int32_t *ptr, TriggerFunc triggerFunc, int32_t step, int32_t lowerBound, int32_t upperBound, const char **strings);
typedef DebugMenuEntry *(*DebugMenuAddInt64_TYPE)(const char *path, const char *name, int64_t *ptr, TriggerFunc triggerFunc, int64_t step, int64_t lowerBound, int64_t upperBound, const char **strings);
typedef DebugMenuEntry *(*DebugMenuAddUInt8_TYPE)(const char *path, const char *name, uint8_t *ptr, TriggerFunc triggerFunc, uint8_t step, uint8_t lowerBound, uint8_t upperBound, const char **strings);
typedef DebugMenuEntry *(*DebugMenuAddUInt16_TYPE)(const char *path, const char *name, uint16_t *ptr, TriggerFunc triggerFunc, uint16_t step, uint16_t lowerBound, uint16_t upperBound, const char **strings);
typedef DebugMenuEntry *(*DebugMenuAddUInt32_TYPE)(const char *path, const char *name, uint32_t *ptr, TriggerFunc triggerFunc, uint32_t step, uint32_t lowerBound, uint32_t upperBound, const char **strings);
typedef DebugMenuEntry *(*DebugMenuAddUInt64_TYPE)(const char *path, const char *name, uint64_t *ptr, TriggerFunc triggerFunc, uint64_t step, uint64_t lowerBound, uint64_t upperBound, const char **strings);
typedef DebugMenuEntry *(*DebugMenuAddFloat32_TYPE)(const char *path, const char *name, float *ptr, TriggerFunc triggerFunc, float step, float lowerBound, float upperBound);
typedef DebugMenuEntry *(*DebugMenuAddFloat64_TYPE)(const char *path, const char *name, double *ptr, TriggerFunc triggerFunc, double step, double lowerBound, double upperBound);
typedef DebugMenuEntry *(*DebugMenuAddCmd_TYPE)(const char *path, const char *name, TriggerFunc triggerFunc);
typedef void (*DebugMenuEntrySetWrap_TYPE)(DebugMenuEntry *e, bool wrap);
typedef void (*DebugMenuEntrySetStrings_TYPE)(DebugMenuEntry *e, const char **strings);
typedef void (*DebugMenuEntrySetAddress_TYPE)(DebugMenuEntry *e, void *addr);

struct DebugMenuAPI
{
bool isLoaded;
HMODULE module;
DebugMenuAddInt8_TYPE addint8;
DebugMenuAddInt16_TYPE addint16;
DebugMenuAddInt32_TYPE addint32;
DebugMenuAddInt64_TYPE addint64;
DebugMenuAddUInt8_TYPE adduint8;
DebugMenuAddUInt16_TYPE adduint16;
DebugMenuAddUInt32_TYPE adduint32;
DebugMenuAddUInt64_TYPE adduint64;
DebugMenuAddFloat32_TYPE addfloat32;
DebugMenuAddFloat64_TYPE addfloat64;
DebugMenuAddCmd_TYPE addcmd;
DebugMenuEntrySetWrap_TYPE setwrap;
DebugMenuEntrySetStrings_TYPE setstrings;
DebugMenuEntrySetAddress_TYPE setaddress;
};
extern DebugMenuAPI gDebugMenuAPI;

inline DebugMenuEntry *DebugMenuAddInt8(const char *path, const char *name, int8_t *ptr, TriggerFunc triggerFunc, int8_t step, int8_t lowerBound, int8_t upperBound, const char **strings)
{ return gDebugMenuAPI.addint8(path, name, ptr, triggerFunc, step, lowerBound, upperBound, strings); }
inline DebugMenuEntry *DebugMenuAddInt16(const char *path, const char *name, int16_t *ptr, TriggerFunc triggerFunc, int16_t step, int16_t lowerBound, int16_t upperBound, const char **strings)
{ return gDebugMenuAPI.addint16(path, name, ptr, triggerFunc, step, lowerBound, upperBound, strings); }
inline DebugMenuEntry *DebugMenuAddInt32(const char *path, const char *name, int32_t *ptr, TriggerFunc triggerFunc, int32_t step, int32_t lowerBound, int32_t upperBound, const char **strings)
{ return gDebugMenuAPI.addint32(path, name, ptr, triggerFunc, step, lowerBound, upperBound, strings); }
inline DebugMenuEntry *DebugMenuAddInt64(const char *path, const char *name, int64_t *ptr, TriggerFunc triggerFunc, int64_t step, int64_t lowerBound, int64_t upperBound, const char **strings)
{ return gDebugMenuAPI.addint64(path, name, ptr, triggerFunc, step, lowerBound, upperBound, strings); }
inline DebugMenuEntry *DebugMenuAddUInt8(const char *path, const char *name, uint8_t *ptr, TriggerFunc triggerFunc, uint8_t step, uint8_t lowerBound, uint8_t upperBound, const char **strings)
{ return gDebugMenuAPI.adduint8(path, name, ptr, triggerFunc, step, lowerBound, upperBound, strings); }
inline DebugMenuEntry *DebugMenuAddUInt16(const char *path, const char *name, uint16_t *ptr, TriggerFunc triggerFunc, uint16_t step, uint16_t lowerBound, uint16_t upperBound, const char **strings)
{ return gDebugMenuAPI.adduint16(path, name, ptr, triggerFunc, step, lowerBound, upperBound, strings); }
inline DebugMenuEntry *DebugMenuAddUInt32(const char *path, const char *name, uint32_t *ptr, TriggerFunc triggerFunc, uint32_t step, uint32_t lowerBound, uint32_t upperBound, const char **strings)
{ return gDebugMenuAPI.adduint32(path, name, ptr, triggerFunc, step, lowerBound, upperBound, strings); }
inline DebugMenuEntry *DebugMenuAddUInt64(const char *path, const char *name, uint64_t *ptr, TriggerFunc triggerFunc, uint64_t step, uint64_t lowerBound, uint64_t upperBound, const char **strings)
{ return gDebugMenuAPI.adduint64(path, name, ptr, triggerFunc, step, lowerBound, upperBound, strings); }
inline DebugMenuEntry *DebugMenuAddFloat32(const char *path, const char *name, float *ptr, TriggerFunc triggerFunc, float step, float lowerBound, float upperBound)
{ return gDebugMenuAPI.addfloat32(path, name, ptr, triggerFunc, step, lowerBound, upperBound); }
inline DebugMenuEntry *DebugMenuAddFloat64(const char *path, const char *name, double *ptr, TriggerFunc triggerFunc, double step, double lowerBound, double upperBound)
{ return gDebugMenuAPI.addfloat64(path, name, ptr, triggerFunc, step, lowerBound, upperBound); }
inline DebugMenuEntry *DebugMenuAddCmd(const char *path, const char *name, TriggerFunc triggerFunc)
{ return gDebugMenuAPI.addcmd(path, name, triggerFunc); }
inline void DebugMenuEntrySetWrap(DebugMenuEntry *e, bool wrap)
{ gDebugMenuAPI.setwrap(e, wrap); }
inline void DebugMenuEntrySetStrings(DebugMenuEntry *e, const char **strings)
{ gDebugMenuAPI.setstrings(e, strings); }
inline void DebugMenuEntrySetAddress(DebugMenuEntry *e, void *addr)
{ gDebugMenuAPI.setaddress(e, addr); }

inline bool DebugMenuLoad(void)
{
if(gDebugMenuAPI.isLoaded)
return true;
HMODULE mod = LoadLibraryA("debugmenu");
if(mod == 0){
char modulePath[MAX_PATH];
HMODULE dllModule;
GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT, (LPCSTR)&gDebugMenuAPI, &dllModule);
GetModuleFileNameA(dllModule, modulePath, MAX_PATH);
char *p = strchr(modulePath, '\\');
if(p) p[1] = '\0';
strcat(modulePath, "debugmenu");
mod = LoadLibraryA(modulePath);
}
if(mod == 0)
return false;
gDebugMenuAPI.addint8 = (DebugMenuAddInt8_TYPE)GetProcAddress(mod, "DebugMenuAddInt8");
gDebugMenuAPI.addint16 = (DebugMenuAddInt16_TYPE)GetProcAddress(mod, "DebugMenuAddInt16");
gDebugMenuAPI.addint32 = (DebugMenuAddInt32_TYPE)GetProcAddress(mod, "DebugMenuAddInt32");
gDebugMenuAPI.addint64 = (DebugMenuAddInt64_TYPE)GetProcAddress(mod, "DebugMenuAddInt64");
gDebugMenuAPI.adduint8 = (DebugMenuAddUInt8_TYPE)GetProcAddress(mod, "DebugMenuAddUInt8");
gDebugMenuAPI.adduint16 = (DebugMenuAddUInt16_TYPE)GetProcAddress(mod, "DebugMenuAddUInt16");
gDebugMenuAPI.adduint32 = (DebugMenuAddUInt32_TYPE)GetProcAddress(mod, "DebugMenuAddUInt32");
gDebugMenuAPI.adduint64 = (DebugMenuAddUInt64_TYPE)GetProcAddress(mod, "DebugMenuAddUInt64");
gDebugMenuAPI.addfloat32 = (DebugMenuAddFloat32_TYPE)GetProcAddress(mod, "DebugMenuAddFloat32");
gDebugMenuAPI.addfloat64 = (DebugMenuAddFloat64_TYPE)GetProcAddress(mod, "DebugMenuAddFloat64");
gDebugMenuAPI.addcmd = (DebugMenuAddCmd_TYPE)GetProcAddress(mod, "DebugMenuAddCmd");
gDebugMenuAPI.setwrap = (DebugMenuEntrySetWrap_TYPE)GetProcAddress(mod, "DebugMenuEntrySetWrap");
gDebugMenuAPI.setstrings = (DebugMenuEntrySetStrings_TYPE)GetProcAddress(mod, "DebugMenuEntrySetStrings");
gDebugMenuAPI.setaddress = (DebugMenuEntrySetAddress_TYPE)GetProcAddress(mod, "DebugMenuEntrySetAddress");
gDebugMenuAPI.isLoaded = true;
gDebugMenuAPI.module = mod;
return true;
}

}

// Also overload them for simplicity

inline DebugMenuEntry *DebugMenuAddVar(const char *path, const char *name, int8_t *ptr, TriggerFunc triggerFunc, int8_t step, int8_t lowerBound, int8_t upperBound, const char **strings)
{ return gDebugMenuAPI.addint8(path, name, ptr, triggerFunc, step, lowerBound, upperBound, strings); }
inline DebugMenuEntry *DebugMenuAddVar(const char *path, const char *name, int16_t *ptr, TriggerFunc triggerFunc, int16_t step, int16_t lowerBound, int16_t upperBound, const char **strings)
{ return gDebugMenuAPI.addint16(path, name, ptr, triggerFunc, step, lowerBound, upperBound, strings); }
inline DebugMenuEntry *DebugMenuAddVar(const char *path, const char *name, int32_t *ptr, TriggerFunc triggerFunc, int32_t step, int32_t lowerBound, int32_t upperBound, const char **strings)
{ return gDebugMenuAPI.addint32(path, name, ptr, triggerFunc, step, lowerBound, upperBound, strings); }
inline DebugMenuEntry *DebugMenuAddVar(const char *path, const char *name, int64_t *ptr, TriggerFunc triggerFunc, int64_t step, int64_t lowerBound, int64_t upperBound, const char **strings)
{ return gDebugMenuAPI.addint64(path, name, ptr, triggerFunc, step, lowerBound, upperBound, strings); }
inline DebugMenuEntry *DebugMenuAddVar(const char *path, const char *name, uint8_t *ptr, TriggerFunc triggerFunc, uint8_t step, uint8_t lowerBound, uint8_t upperBound, const char **strings)
{ return gDebugMenuAPI.adduint8(path, name, ptr, triggerFunc, step, lowerBound, upperBound, strings); }
inline DebugMenuEntry *DebugMenuAddVar(const char *path, const char *name, uint16_t *ptr, TriggerFunc triggerFunc, uint16_t step, uint16_t lowerBound, uint16_t upperBound, const char **strings)
{ return gDebugMenuAPI.adduint16(path, name, ptr, triggerFunc, step, lowerBound, upperBound, strings); }
inline DebugMenuEntry *DebugMenuAddVar(const char *path, const char *name, uint32_t *ptr, TriggerFunc triggerFunc, uint32_t step, uint32_t lowerBound, uint32_t upperBound, const char **strings)
{ return gDebugMenuAPI.adduint32(path, name, ptr, triggerFunc, step, lowerBound, upperBound, strings); }
inline DebugMenuEntry *DebugMenuAddVar(const char *path, const char *name, uint64_t *ptr, TriggerFunc triggerFunc, uint64_t step, uint64_t lowerBound, uint64_t upperBound, const char **strings)
{ return gDebugMenuAPI.adduint64(path, name, ptr, triggerFunc, step, lowerBound, upperBound, strings); }
inline DebugMenuEntry *DebugMenuAddVar(const char *path, const char *name, float *ptr, TriggerFunc triggerFunc, float step, float lowerBound, float upperBound)
{ return gDebugMenuAPI.addfloat32(path, name, ptr, triggerFunc, step, lowerBound, upperBound); }
inline DebugMenuEntry *DebugMenuAddVar(const char *path, const char *name, double *ptr, TriggerFunc triggerFunc, double step, double lowerBound, double upperBound)
{ return gDebugMenuAPI.addfloat64(path, name, ptr, triggerFunc, step, lowerBound, upperBound); }

inline DebugMenuEntry *DebugMenuAddVarBool32(const char *path, const char *name, int32_t *ptr, TriggerFunc triggerFunc)
{
static const char *boolstr[] = { "Off", "On" };
DebugMenuEntry *e = DebugMenuAddVar(path, name, ptr, triggerFunc, 1, 0, 1, boolstr);
DebugMenuEntrySetWrap(e, true);
return e;
}
inline DebugMenuEntry *DebugMenuAddVarBool16(const char *path, const char *name, int16_t *ptr, TriggerFunc triggerFunc)
{
static const char *boolstr[] = { "Off", "On" };
DebugMenuEntry *e = DebugMenuAddVar(path, name, ptr, triggerFunc, 1, 0, 1, boolstr);
DebugMenuEntrySetWrap(e, true);
return e;
}
inline DebugMenuEntry *DebugMenuAddVarBool8(const char *path, const char *name, int8_t *ptr, TriggerFunc triggerFunc)
{
static const char *boolstr[] = { "Off", "On" };
DebugMenuEntry *e = DebugMenuAddVar(path, name, ptr, triggerFunc, 1, 0, 1, boolstr);
DebugMenuEntrySetWrap(e, true);
return e;
}
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