SDK.h

#pragma once

#include <windows.h>
#include <math.h>
#include <xstring>
#include "Vector.h"
#include "Vector2.h"
#include "getvfunc.h"
#include "dt_recv2.h"
#include "CSignature.h"
#include "WeaponList.h"
#include "CGlobalVars.h"
#include "VMTHooks.h"
#include "Log.h"

using namespace std;

typedef void* ( __cdecl* CreateInterface_t )( const char*, int* );
typedef void* (*CreateInterfaceFn)(const char *pName, int *pReturnCode);

inline wstring ToWchar(const char* text)
{
	size_t length = strlen(text) + 1;
	wstring wc(length, L'#');
	mbstowcs(&wc[0], text, length);

	return wc;
}

#define VMTManager toolkit::VMTManager
#define VMTBaseManager toolkit::VMTBaseManager

#define WIN32_LEAN_AND_MEAN
#pragma optimize("gsy",on)
#pragma warning( disable : 4244 ) //Possible loss of data

typedef float matrix3x4[3][4];

#define me gInts.Engine->GetLocalPlayer()
#define GetBaseEntity gInts.EntList->GetClientEntity
#define MASK_AIMBOT 0x200400B
#define	FL_ONGROUND (1<<0)
#define FL_DUCKING (1<<1)
#define CONTENTS_HITBOX 0x40000000
#define FLOW_OUTGOING 0
#define FLOW_INCOMING 1
#define PI 3.14159265358979323846f
#define DEG2RAD( x ) ( ( float )( x ) * ( float )( ( float )( PI ) / 180.0f ) )
#define RAD2DEG( x ) ( ( float )( x ) * ( float )( 180.0f / ( float )( PI ) ) )
#define square( x ) ( x * x )
#define RADPI 57.295779513082f
#define SQUARE( a ) a*a
#define BLU_TEAM 3
#define RED_TEAM 2

typedef struct player_info_s
{
	char			name[32];
	int				userID;
	char			guid[33];
	unsigned long	friendsID;
	char			friendsName[32];
	bool			fakeplayer;
	bool			ishltv;
	unsigned long	customFiles[4];
	unsigned char	filesDownloaded;
} player_info_t;

class ClientClass
{
private:
	BYTE _chPadding[8];
public:
	char* chName;
	RecvTable* Table;
	ClientClass* pNextClass;
	int iClassID;
};

class CHLClient
{
public:
	ClientClass* GetAllClasses( void )
	{
		typedef ClientClass* ( __thiscall* OriginalFn )( PVOID ); //Anything inside a VTable is a __thiscall unless it completly disregards the thisptr. You can also call them as __stdcalls, but you won't have access to the __thisptr.
		return getvfunc<OriginalFn>( this, 8 )( this ); //Return the pointer to the head CClientClass.
	}
};

class CGlobals
{
public:
	float realtime;
	int framecount;
	float absoluteframetime;
	float curtime;
	float frametime;
	int maxclients;
	int tickcount;
	float interval_per_tick;
	float interpolation_amount;
};

class CUserCmd
{
public:
	virtual ~CUserCmd() {}; //Destructor 0
	int command_number; //4
	int tick_count; //8
	Vector viewangles; //C
	float forwardmove; //18
	float sidemove; //1C
	float upmove; //20
	int	buttons; //24
	byte impulse; //28
	int weaponselect; //2C
	int weaponsubtype; //30
	int random_seed; //34
	short mousedx; //38
	short mousedy; //3A
	bool hasbeenpredicted; //3C;
};

class CBaseEntity
{
public:
	Vector& GetAbsOrigin( )
	{
		typedef Vector& ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>(this, 9)(this);
	}
	Vector& GetAbsAngles( )
	{
		typedef Vector& ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>(this, 10)(this);
	}
	void GetWorldSpaceCenter( Vector& vWorldSpaceCenter)
	{
		Vector vMin, vMax;
		this->GetRenderBounds( vMin, vMax );
		vWorldSpaceCenter = this->GetAbsOrigin();
		vWorldSpaceCenter.z += (vMin.z + vMax.z) / 2;
	}
	DWORD* GetModel( )
	{
		PVOID pRenderable = (PVOID)(this + 0x4);
		typedef DWORD* ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>( pRenderable, 9 )( pRenderable );
	}
	bool SetupBones( matrix3x4 *pBoneToWorldOut, int nMaxBones, int boneMask, float currentTime )
	{
		PVOID pRenderable = (PVOID)(this + 0x4);
		typedef bool ( __thiscall* OriginalFn )( PVOID, matrix3x4*, int, int, float );
		return getvfunc<OriginalFn>( pRenderable, 16 )( pRenderable, pBoneToWorldOut, nMaxBones, boneMask, currentTime );
	}
	ClientClass* GetClientClass( )
	{
		PVOID pNetworkable = (PVOID)(this + 0x8);
		typedef ClientClass* ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>( pNetworkable, 2 )( pNetworkable );
	}
	bool IsDormant( )
	{
		PVOID pNetworkable = (PVOID)(this + 0x8);
		typedef bool ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>( pNetworkable, 8 )( pNetworkable );
	}
	int GetIndex( )
	{
		PVOID pNetworkable = (PVOID)(this + 0x8);
		typedef int ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>( pNetworkable, 9 )( pNetworkable );
	}
	void GetRenderBounds( Vector& mins, Vector& maxs )
	{
		PVOID pRenderable = (PVOID)(this + 0x4);
		typedef void ( __thiscall* OriginalFn )( PVOID, Vector& , Vector& );
		getvfunc<OriginalFn>( pRenderable, 20 )( pRenderable, mins, maxs );
	}
};

class EngineClient
{
public:
	void GetScreenSize( int& width, int& height )
	{
		typedef void ( __thiscall* OriginalFn )( PVOID, int& , int& );
		return getvfunc<OriginalFn>( this, 5 )( this, width, height );
	}
	bool GetPlayerInfo( int ent_num, player_info_t *pinfo )
	{
		typedef bool ( __thiscall* OriginalFn )( PVOID, int, player_info_t * );
		return getvfunc<OriginalFn>(this, 8)(this, ent_num, pinfo );
	}
	bool Con_IsVisible( void )
	{
		typedef bool ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>( this, 11 )( this );
	}
	int GetLocalPlayer( void )
	{
		typedef int ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>( this, 12 )( this );
	}
	float Time( void )
	{
		typedef float ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>( this, 14 )( this );
	}
	void GetViewAngles( Vector& va )
	{
		typedef void ( __thiscall* OriginalFn )( PVOID, Vector& va );
		return getvfunc<OriginalFn>( this, 19 )( this, va );
	}
	void SetViewAngles( Vector& va )
	{
		typedef void ( __thiscall* OriginalFn )( PVOID, Vector& va );
		return getvfunc<OriginalFn>( this, 20 )( this, va );
	}
	int GetMaxClients( void )
	{
		typedef int ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>( this, 21 )( this );
	}
	bool IsInGame( void )
	{
		typedef bool ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>( this, 26 )( this );
	}
	bool IsConnected( void )
	{
		typedef bool ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>( this, 27 )( this );
	}
	bool IsDrawingLoadingImage( void )
	{
		typedef bool ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>( this, 28 )( this );
	}
	const matrix3x4& WorldToScreenMatrix( void )
	{
		typedef const matrix3x4& ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>(this, 36)(this);
	}
	bool IsTakingScreenshot( void )
	{
		typedef bool ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>( this, 85 )( this );
	}
	DWORD* GetNetChannelInfo( void )
	{
		typedef DWORD* ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>( this, 72 )( this );
	}
	void ClientCmd_Unrestricted( const char* chCommandString )
	{
		typedef void ( __thiscall* OriginalFn )( PVOID, const char * );
		return getvfunc<OriginalFn>( this, 106 )( this, chCommandString );
	}
};

class IPanel
{
public:
	const char *GetName(unsigned int vguiPanel)
	{
		typedef const char* ( __thiscall* OriginalFn )( PVOID, unsigned int );
		return getvfunc<OriginalFn>( this, 36 )( this, vguiPanel );
	}
	void SetMouseInputEnabled(unsigned int panel, bool state)
	{
		getvfunc<void(__thiscall *)(void*, int, bool)>(this, 32)(this, panel, state);
	}
	void SetTopmostPopup(unsigned int panel, bool state)
	{
		getvfunc<void(__thiscall *)(void*, int, bool)>(this, 59)(this, panel, state);
	}
};

struct Vertex_t;
class ISurface
{
public:
	void DrawSetColor(int r, int g, int b, int a)
	{
		typedef void(__thiscall* OriginalFn)(PVOID, int, int, int, int);
		getvfunc<OriginalFn>(this, 11)(this, r, g, b, a);
	}
	void DrawFilledRect(int x0, int y0, int x1, int y1)
	{
		typedef void(__thiscall* OriginalFn)(PVOID, int, int, int, int);
		getvfunc<OriginalFn>(this, 12)(this, x0, y0, x1, y1);
	}
	void DrawOutlinedRect(int x0, int y0, int x1, int y1)
	{
		typedef void(__thiscall* OriginalFn)(PVOID, int, int, int, int);
		getvfunc<OriginalFn>(this, 14)(this, x0, y0, x1, y1);
	}
	void DrawSetTextFont(unsigned long font)
	{
		typedef void(__thiscall* OriginalFn)(PVOID, unsigned long);
		getvfunc<OriginalFn>(this, 17)(this, font);
	}
	void DrawSetTextColor(int r, int g, int b, int a)
	{
		typedef void(__thiscall* OriginalFn)(PVOID, int, int, int, int);
		getvfunc<OriginalFn>(this, 19)(this, r, g, b, a);
	}
	void DrawSetTextPos(int x, int y)
	{
		typedef void(__thiscall* OriginalFn)(PVOID, int, int);
		getvfunc<OriginalFn>(this, 20)(this, x, y);
	}
	void DrawPrintText(const wchar_t *text, int textLen)
	{
		typedef void(__thiscall* OriginalFn)(PVOID, const wchar_t *, int, int);
		return getvfunc<OriginalFn>(this, 22)(this, text, textLen, 0);
	}
	unsigned long CreateFont()
	{
		typedef unsigned int(__thiscall* OriginalFn)(PVOID);
		return getvfunc<OriginalFn>(this, 66)(this);
	}
	void SetFontGlyphSet(unsigned long &font, const char *windowsFontName, int tall, int weight, int blur, int scanlines, int flags)
	{
		typedef void(__thiscall* OriginalFn)(PVOID, unsigned long, const char*, int, int, int, int, int, int, int);
		getvfunc<OriginalFn>(this, 67)(this, font, windowsFontName, tall, weight, blur, scanlines, flags, 0, 0);
	}
	void GetTextSize(unsigned long font, const wchar_t *text, int &wide, int &tall)
	{
		typedef void(__thiscall* OriginalFn)(PVOID, unsigned long, const wchar_t *, int&, int&);
		getvfunc<OriginalFn>(this, 75)(this, font, text, wide, tall);
	}
	int CreateNewTextureID(bool procedural = true)
	{
		typedef int(__thiscall *OriginalFn)(void*, bool);
		return getvfunc<OriginalFn>(this, 37)(this, procedural);
	}
	void DrawSetTextureRGBA(int id, unsigned char const* rgba, int wide, int tall, int hardwareFilter = 0, bool forceReload = 0)
	{
		typedef void(__thiscall *OriginalFn)(void*, int, unsigned char const*, int, int, int, bool);
		return getvfunc<OriginalFn>(this, 31)(this, id, rgba, wide, tall, hardwareFilter, forceReload);
	}
	void DrawSetTexture(int id)
	{
		typedef void(__thiscall *OriginalFn)(void*, int);
		return getvfunc<OriginalFn>(this, 32)(this, id);
	}
	bool IsTextureIDValid(int id)
	{
		typedef bool(__thiscall *OriginalFn)(void*, int);
		return getvfunc<OriginalFn>(this, 35)(this, id);
	}
	void DrawTexturedRect(int x, int y, int width, int height)
	{
		typedef void(__thiscall *OriginalFn)(void*, int, int, int, int);
		return getvfunc<OriginalFn>(this, 34)(this, x, y, width, height);
	}
	void DrawTexturedPolygon(int n, Vertex_t *vertices, bool bClipVertices = true)
	{
		typedef void(__thiscall *OriginalFn)(PVOID, int, Vertex_t*, bool);
		return getvfunc<OriginalFn>(this, 102)(this, n, vertices, bClipVertices);
	}
	void DrawLine(int x, int y, int x1, int y1)
	{
		typedef void(__thiscall *OriginalFn)(void*, int, int, int, int);
		return getvfunc<OriginalFn>(this, 15)(this, x, y, x1, y1);
	}
	void GetCursorPosition(int &x, int &y)
	{
		return getvfunc<void(__thiscall *)(void*, int &, int &)>(this, 96)(this, x, y);
	}
};

class CEntList
{
public:
	CBaseEntity* GetClientEntity( int entnum )
	{
		typedef CBaseEntity* ( __thiscall* OriginalFn )( PVOID, int );
		return getvfunc<OriginalFn>( this, 3 )( this, entnum );
	}
	CBaseEntity* GetClientEntityFromHandle( int hEnt )
	{
		typedef CBaseEntity* ( __thiscall* OriginalFn )( PVOID, int );
		return getvfunc<OriginalFn>( this, 4 )( this, hEnt );
	}
	int GetHighestEntityIndex(void)
	{
		typedef int ( __thiscall* OriginalFn )( PVOID );
		return getvfunc<OriginalFn>( this, 6 )( this );
	}
};

enum playercontrols
{
	IN_ATTACK = (1 << 0),
	IN_JUMP	= (1 << 1),
	IN_DUCK = (1 << 2),
	IN_FORWARD = (1 << 3),
	IN_BACK = (1 << 4),
	IN_USE = (1 << 5),
	IN_CANCEL = (1 << 6),
	IN_LEFT = (1 << 7),
	IN_RIGHT = (1 << 8),
	IN_MOVELEFT = (1 << 9),
	IN_MOVERIGHT = (1 << 10),
	IN_ATTACK2 = (1 << 11),
	IN_RUN = (1 << 12),
	IN_RELOAD = (1 << 13),
	IN_ALT1 = (1 << 14),
	IN_ALT2 = (1 << 15),
	IN_SCORE = (1 << 16),	// Used by client.dll for when scoreboard is held down
	IN_SPEED = (1 << 17),	// Player is holding the speed key
	IN_WALK = (1 << 18),	// Player holding walk key
	IN_ZOOM	= (1 << 19),	// Zoom key for HUD zoom
	IN_WEAPON1 = (1 << 20),	// weapon defines these bits
	IN_WEAPON2 = (1 << 21),	// weapon defines these bits
	IN_BULLRUSH = (1 << 22),
};

enum tf_cond 
{ 
    TFCond_Slowed = (1 << 0), //Toggled when a player is slowed down. 
    TFCond_Zoomed = (1 << 1), //Toggled when a player is zoomed. 
    TFCond_Disguising = (1 << 2), //Toggled when a Spy is disguising.  
    TFCond_Disguised = (1 << 3), //Toggled when a Spy is disguised. 
    TFCond_Cloaked = (1 << 4), //Toggled when a Spy is invisible. 
    TFCond_Ubercharged = (1 << 5), //Toggled when a player is ÜberCharged. 
    TFCond_TeleportedGlow = (1 << 6), //Toggled when someone leaves a teleporter and has glow beneath their feet. 
    TFCond_Taunting = (1 << 7), //Toggled when a player is taunting. 
    TFCond_UberchargeFading = (1 << 8), //Toggled when the ÜberCharge is fading. 
    TFCond_CloakFlicker = (1 << 9), //Toggled when a Spy is visible during cloak. 
    TFCond_Teleporting = (1 << 10), //Only activates for a brief second when the player is being teleported; not very useful. 
    TFCond_Kritzkrieged = (1 << 11), //Toggled when a player is being crit buffed by the KritzKrieg. 
    TFCond_TmpDamageBonus = (1 << 12), //Unknown what this is for. Name taken from the AlliedModders SDK. 
    TFCond_DeadRingered = (1 << 13), //Toggled when a player is taking reduced damage from the Deadringer. 
    TFCond_Bonked = (1 << 14), //Toggled when a player is under the effects of The Bonk! Atomic Punch. 
    TFCond_Stunned = (1 << 15), //Toggled when a player's speed is reduced from airblast or a Sandman ball. 
    TFCond_Buffed = (1 << 16), //Toggled when a player is within range of an activated Buff Banner. 
    TFCond_Charging = (1 << 17), //Toggled when a Demoman charges with the shield. 
    TFCond_DemoBuff = (1 << 18), //Toggled when a Demoman has heads from the Eyelander. 
    TFCond_CritCola = (1 << 19), //Toggled when the player is under the effect of The Crit-a-Cola. 
    TFCond_InHealRadius = (1 << 20), //Unused condition, name taken from AlliedModders SDK. 
    TFCond_Healing = (1 << 21), //Toggled when someone is being healed by a medic or a dispenser. 
    TFCond_OnFire = (1 << 22), //Toggled when a player is on fire. 
    TFCond_Overhealed = (1 << 23), //Toggled when a player has >100% health. 
    TFCond_Jarated = (1 << 24), //Toggled when a player is hit with a Sniper's Jarate. 
    TFCond_Bleeding = (1 << 25), //Toggled when a player is taking bleeding damage. 
    TFCond_DefenseBuffed = (1 << 26), //Toggled when a player is within range of an activated Battalion's Backup. 
    TFCond_Milked = (1 << 27), //Player was hit with a jar of Mad Milk. 
    TFCond_MegaHeal = (1 << 28), //Player is under the effect of Quick-Fix charge. 
    TFCond_RegenBuffed = (1 << 29), //Toggled when a player is within a Concheror's range. 
    TFCond_MarkedForDeath = (1 << 30), //Player is marked for death by a Fan O'War hit. Effects are similar to TFCond_Jarated. 
	TFCond_NoHealingDamageBuff = (1 << 31), //Unknown what this is used for.

    TFCondEx_SpeedBuffAlly = (1 << 0), //Toggled when a player gets hit with the disciplinary action. 
    TFCondEx_HalloweenCritCandy = (1 << 1), //Only for Scream Fortress event maps that drop crit candy. 
	TFCondEx_CritCanteen = (1 << 2), //Player is getting a crit boost from a MVM canteen.
	TFCondEx_CritDemoCharge = (1 << 3), //From demo's shield
	TFCondEx_CritHype = (1 << 4), //Soda Popper crits. 
    TFCondEx_CritOnFirstBlood = (1 << 5), //Arena first blood crit buff. 
    TFCondEx_CritOnWin = (1 << 6), //End of round crits. 
    TFCondEx_CritOnFlagCapture = (1 << 7), //CTF intelligence capture crits. 
    TFCondEx_CritOnKill = (1 << 8), //Unknown what this is for. 
    TFCondEx_RestrictToMelee = (1 << 9), //Unknown what this is for. 
	TFCondEx_DefenseBuffNoCritBlock = ( 1 << 10 ), //MvM Buff.
	TFCondEx_Reprogrammed = (1 << 11), //MvM Bot has been reprogrammed.
    TFCondEx_PyroCrits = (1 << 12), //Player is getting crits from the Mmmph charge. 
    TFCondEx_PyroHeal = (1 << 13), //Player is being healed from the Mmmph charge. 
	TFCondEx_FocusBuff = (1 << 14), //Player is getting a focus buff.
	TFCondEx_DisguisedRemoved = (1 << 15), //Disguised remove from a bot.
	TFCondEx_MarkedForDeathSilent = (1 << 16), //Player is under the effects of the Escape Plan/Equalizer or GRU.
	TFCondEx_DisguisedAsDispenser = (1 << 17), //Bot is disguised as dispenser.
	TFCondEx_Sapped = (1 << 18), //MvM bot is being sapped.
	TFCondEx_UberchargedHidden = (1 << 19), //MvM Related
	TFCondEx_UberchargedCanteen = (1 << 20), //Player is receiving ÜberCharge from a canteen.
	TFCondEx_HalloweenBombHead = (1 << 21), //Player has a bomb on their head from Merasmus.
	TFCondEx_HalloweenThriller = (1 << 22), //Players are forced to dance from Merasmus.
	TFCondEx_BulletCharge = (1 << 26), //Player is receiving 75% reduced damage from bullets.
	TFCondEx_ExplosiveCharge = (1 << 27), //Player is receiving 75% reduced damage from explosives.
	TFCondEx_FireCharge = (1 << 28), //Player is receiving 75% reduced damage from fire.
	TFCondEx_BulletResistance = (1 << 29), //Player is receiving 10% reduced damage from bullets.
	TFCondEx_ExplosiveResistance = (1 << 30), //Player is receiving 10% reduced damage from explosives.
	TFCondEx_FireResistance = (1 << 31), //Player is receiving 10% reduced damage from fire.

	TFCondEx2_Stealthed = (1 << 0),
	TFCondEx2_MedigunDebuff = (1 << 1),
	TFCondEx2_StealthedUserBuffFade = (1 << 2),
	TFCondEx2_BulletImmune = (1 << 3),
	TFCondEx2_BlastImmune = (1 << 4),
	TFCondEx2_FireImmune = (1 << 5),
	TFCondEx2_PreventDeath = (1 << 6),
	TFCondEx2_MVMBotRadiowave = (1 << 7),
	TFCondEx2_HalloweenSpeedBoost = (1 << 8), //Wheel has granted player speed boost.
	TFCondEx2_HalloweenQuickHeal = (1 << 9), //Wheel has granted player quick heal.
	TFCondEx2_HalloweenGiant = (1 << 10), //Wheel has granted player giant mode.
	TFCondEx2_HalloweenTiny = (1 << 11), //Wheel has granted player tiny mode.
	TFCondEx2_HalloweenInHell = (1 << 12), //Wheel has granted player in hell mode.
	TFCondEx2_HalloweenGhostMode = (1 << 13), //Wheel has granted player ghost mode.
	TFCondEx2_Parachute = (1 << 16), //Player has deployed the BASE Jumper.
	TFCondEx2_BlastJumping = (1 << 17), //Player has sticky or rocket jumped.

    TFCond_MiniCrits = ( TFCond_Buffed | TFCond_CritCola ),
    TFCond_IgnoreStates = ( TFCond_Ubercharged | TFCond_Bonked ), 
    TFCondEx_IgnoreStates = ( TFCondEx_PyroHeal ) 
};

enum tf_classes
{
	TF2_Scout = 1,
	TF2_Soldier = 3,
	TF2_Pyro = 7,
	TF2_Demoman = 4,
	TF2_Heavy = 6,
	TF2_Engineer = 9,
	TF2_Medic = 5,
	TF2_Sniper = 2,
	TF2_Spy = 8,
};

enum source_lifestates
{
	LIFE_ALIVE,
	LIFE_DYING,
	LIFE_DEAD,
	LIFE_RESPAWNABLE,
	LIFE_DISCARDBODY,
};

class ClientModeShared
{
public:
	bool IsChatPanelOutOfFocus(void)
	{
		typedef PVOID(__thiscall* OriginalFn)(PVOID);
		PVOID CHudChat = getvfunc<OriginalFn>(this, 19)(this);
		if (CHudChat)
		{
			return *(PFLOAT)((DWORD)CHudChat + 0xFC) == 0;
		}
		return false;
	}
};

class CInterfaces
{
public:
	CEntList* EntList;
	EngineClient* Engine;
	IPanel* Panels;
	ISurface* Surface;
	ClientModeShared* ClientMode;
	CHLClient* Client;
};

extern CInterfaces gInts;
extern CPlayerVariables gPlayerVars;
extern COffsets gOffsets;