// GTA_test.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <cstdio>
#include <cstdint>

class Player 
{
public:
    char name[20]; // instance address + 0
    int  skinID;   // instance address + sizeof(name)
    float health;  // instance address + sizeof(name) + sizeof(skinID)
    float armour;  // instance address + sizeof(name) + sizeof(skinID) + sizeof(health)

    /*
    // assuming instance address is 0x500ACE65
    char name[20]; // 0x500ACE65 + 0
    int  skinID;   // 0x500ACE65 + 20
    float health;  // 0x500ACE65 + 24
    float armour;  // 0x500ACE65 + 28

    */

    Player(char * theName, int theSkinID, float theHealth, float theArmour)
    {
        memcpy(name, theName, sizeof(name));

        skinID = theSkinID;
        health = theHealth;
        armour = theArmour;
    }
};

int main()
{
    // `myPlayer` is an instance here. We can also call it "object"
    Player myPlayer((char*)"She said she was 18", 100, 75.0, 8.8);

    std::printf("\nsize of `myPlayer`: %u | address of `myPlayer`: %p\n\n", sizeof(myPlayer), &myPlayer);

    // Simple and recommended way of accessing
    Player * pPlayer = &myPlayer;

    std::printf("\nName: %s\nSkin ID: %d\nHealth: %f\nArmour: %f\n\n", pPlayer->name, pPlayer->skinID, pPlayer->health, pPlayer->armour);

    //////////////////////////////////////////////////
    // An Alternative way to access the instance data
    //////////////////////////////////////////////////

    std::uint8_t* playerAddress = reinterpret_cast<std::uint8_t*> (&myPlayer);

    char* pName = (char*)playerAddress;
    int   skinID = *(int*)(playerAddress + 20);
    float health = *(float*)(playerAddress + 24);
    float armour = *(float*)(playerAddress + 28);

    std::printf("\nAlternative way:\nName: %s\nSkin ID: %d\nHealth: %f\nArmour: %f\n\n", pName, skinID, health, armour);

    getchar(); 
    return 0;
}