Adds a new item to MCPE iOS :D

New Item iOS.cpp

#include <iostream>
#include <substrate.h>
#include <mach-o/dyld.h>
#include <string>
#include <stdbool.h>
#include <stddef.h>
#include <sstream>
#include <iomanip>
#include <vector>
#include <cstring>
#include <memory>
using namespace std;


class Item {
public:
    void** vt; // 0
    int maxStack; // 4
    string atlas; // 8
    int frames; // 20
    bool toolbarAnimates; // 24
    int id; // 28
    int maxDamage; // 32
    char icon[32]; // 36
    int creativeTab; // 68
    bool equipped; // 72
    bool stackData; // 73
    Item* craftingRemainingItem; // 76
    string name; // 80
}; // size 92 bytes


static void (*Item$setDescriptionId)(Item*, string const&);
static void (*Item$setIcon)(Item*, string const&, int);

static Item** Item$items;


void addNewItem(int id, string name, string icon, int iconindex) {
    Item* myitem = (Item*) ::operator new(sizeof(Item));
    myitem->vt = Item$items[318]->vt;
    myitem->id = id;
    myitem->atlas = "items-opaque.png";
    myitem->maxStack = 64;
    myitem->frames = 1;
    myitem->toolbarAnimates = false;
    myitem->maxDamage = 0;
    myitem->creativeTab = 4;
    myitem->stackData = false;
    Item$setDescriptionId(myitem, name);
    Item$setIcon(myitem, icon, iconindex);
    Item$items[id] = myitem;
}

void initCustomItems() {
    addNewItem(511, "hopper_item", "hopper", 0);
    addNewItem(510, "fireworks", "fireworks", 0);
    addNewItem(509, "rod", "fishing_rod_uncast", 0);
    addNewItem(508, "cream", "magma_cream", 0);
    addNewItem(507, "shiny_melon", "melon_speckled", 0);
}


MSHook(void, Item$initItems) {
    _Item$initItems();
    initCustomItems();
}

MSHook(string, I18n$get, string const& key) {
    if(key == "item.hopper_item.name") return "Hopper";
    if(key == "item.fireworks.name") return "Fireworks";
    if(key == "item.rod.name") return "Fishing rod";
    if(key == "item.cream.name") return "Magma Cream";
    if(key == "item.shiny_melon.name") return "Sparkling Melon";
    return _I18n$get(key);
}


MSInitialize {
    MSHookSymbol(Item$setIcon, "__ZN4Item7setIconERKNSt3__112basic_stringIcNS0_11char_traitsIcEENS0_9allocatorIcEEEEi");
    MSHookSymbol(Item$setDescriptionId, "__ZN4Item16setDescriptionIdERKNSt3__112basic_stringIcNS0_11char_traitsIcEENS0_9allocatorIcEEEE");

    #if __ARM_ARCH_7A__
        uintptr_t base = 0x2bcb14;
        uintptr_t aslr_slide = _dyld_get_image_vmaddr_slide(0);
        Item$items = (__typeof__(Item$items))(base + aslr_slide);
    #elif __ARM_ARCH_7S__
        MSHookSymbol(Item$items, "__MergedGlobals11299");
    #elif __aarch64__
        MSHookSymbol(Item$items, "__ZN4Item5itemsE");
    #endif

    MSHookFunction("__ZN4Item9initItemsEv", MSHake(Item$initItems));
    MSHookFunction("__ZN4I18n3getERKNSt3__112basic_stringIcNS0_11char_traitsIcEENS0_9allocatorIcEEEE", MSHake(I18n$get));
}