How to hooks is visible player on mw3 1.4.382

[niko1921]

Hi, I'm trying hook the IsVisible(); Function from teknomw3, I have tried the following:

typedef struct {
    char _0x0000[2];
    SHORT Valid; //0x0002
    char _0x0004[16];
    Vector Origin; //0x0014
    Vector Angles; //0x0020
    char _0x002C[60];
    int Flags; //0x0068
    char _0x006C[12];
    Vector OldOrigin; //0x0078
    char _0x0084[76];
    int ClientNum; //0x00D0
    SHORT Type; //0x00D4
    char _0x00D6[18];
    Vector NewOrigin; //0x00E8
    char _0x00F4[64];
    BYTE OldWeaponID; //0x0134
    char _0x0135[99];
    BYTE WeaponID; //0x0198
    char _0x0199[1];
    SHORT Alive; //0x019A
    char _0x019C[8];
    float Flags2; //0x01A4
    char _0x01A8[40];
    int IsAlive; //0x01D0
    char _0x01D4[36];
} entity_t; //Size=0x01F8




bool IsPlayerVisible(Entity_t * retx,int* addrplayer)
{
	DWORD CallFun = 0X54E6D0;
	bool Is;
	
	__asm
	{
		push retx
		push addrplayer
		call CallFun
		mov Is, al
	}
	return Is;
}


void test() // Testing debuging
{
	DWORD Player1 = 0x9FC748 + 0x560; // Example player A
	Entity_t newent;
	
	
	if(IsPlayerVisible(newent, Player1))
	{
		cout << "Player visible!" << endl;
	}
	else
	{
		cout << "Player not visible!" << endl;
	}
}

addresses:

IsVisible(); // 0x0054E6D0
Client info for all players // 0x009FC748 + increments 560 for each player.

the original code i have obtained from @Kenshin13 :

char isVisible(Entity_t* ret, int* entityNum) //54E6D0
{
  int *v4; // eax@1
  char result; // al@2

  v4 = &dword_9FC748[344 * *(_DWORD *)(entityNum+ 352)]; //Get the ClientInfo address for the entity passsed.
  if ( !*entityNum|| *((_BYTE *)entityNum+ 56) & 0x40 ) //Compare perk. if(SelectedClient->Perk & 0x40) return;
    result = 0;
  else
    result = sub_474000(ret, entityNum, (int)&unk_2807823) != 0; //Else, execute a trace using cEntity, EntityClientNum and the traceflag, here it's 0x2807823
  return result; //Then returns 1 if the Entity is visible.
}

anyone who has had experience with this, can say how i can make the structure hooking the assembly code,
the goal is to know if a player is visible.
Thx to all.

[niko1921]

[SOLVED] char ABCDEFGH