From 5ed5a0dc244b0ff115ab0627a3e19e04556cbaa7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Asier=20Nu=C3=B1ez?=
 <45818936+Asiern@users.noreply.github.com>
Date: Thu, 4 Feb 2021 14:29:44 +0100
Subject: [PATCH] added; removeItem, removeWeapon

---
 README.md                               |  2 ++
 Source/ConsoleApplication1/NierHook.cpp | 47 +++++++++++++++++++++++++
 Source/ConsoleApplication1/NierHook.hpp |  2 ++
 3 files changed, 51 insertions(+)

diff --git a/README.md b/README.md
index 17a8fc3..2df9087 100644
--- a/README.md
+++ b/README.md
@@ -115,6 +115,8 @@ You can find all the used IDs and offsets [here](https://docs.google.com/spreads
 - `IgnoreUpgradeMaterials` - enables or disables Ignore Upgrade Materials
 - `setGameSpeed` - sets game speed
 - `addItem` - Adds a specific quantity of items to the inventory (See item IDs at [Memory Reference](#memory-reference))
+- `removeItem` -Removes item from memory (See item IDs at [Memory Reference](#memory-reference))
 - `addWeapon` - Adds a weapon to the inventory (See weapon IDs at [Memory Reference](#memory-reference))
+- `removeWeapon` - removes a weapon from the inventory (See weapon IDs at [Memory Reference](#memory-reference))
 - `setHUDOpacity` - sets the opacity of the HUD
 - `setColor` - sets RGBColor combination
diff --git a/Source/ConsoleApplication1/NierHook.cpp b/Source/ConsoleApplication1/NierHook.cpp
index a849f1c..0bafdd1 100644
--- a/Source/ConsoleApplication1/NierHook.cpp
+++ b/Source/ConsoleApplication1/NierHook.cpp
@@ -323,6 +323,31 @@ bool NieRHook::addItem(int ID, int number)
 	CloseHandle(pHandle);
 }
 
+bool NieRHook::removeItem(int ID)
+{
+	HANDLE pHandle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, this->_pID);
+	uintptr_t Address = this->_baseAddress + 0x197C4C4;
+	unsigned int currentID;
+	int emptySlotID = 0xffffffff;
+	if (!this->_hooked)
+	{
+		//Not hooked return
+		return false;
+	}
+	while (Address <= this->_baseAddress + 0x197CE18)
+	{
+		ReadProcessMemory(pHandle, (LPVOID)Address, &currentID, sizeof(currentID), NULL);
+		if (ID == currentID) //Item found
+		{
+			//Remove item from memory																				 //Item found on memory
+			WriteProcessMemory(pHandle, (LPVOID)(Address), &emptySlotID, sizeof(emptySlotID), NULL); //Set level
+			return true;
+		}
+		Address += 0xC; //Go to the next slot
+	}
+	return false;
+}
+
 /*
 	Add weapon to memory by ID
 	returns: true if successful and false if not
@@ -361,6 +386,28 @@ bool NieRHook::addWeapon(int ID, int level)
 	CloseHandle(pHandle);
 }
 
+bool NieRHook::removeWeapon(int ID)
+{
+	HANDLE pHandle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, this->_pID);
+	uintptr_t Address = this->_baseAddress + 0x197DCC4;
+	uintptr_t emptySlotID = 0xffffffff;
+	unsigned int currentID;
+	if (!this->_hooked)
+	{
+		return false; //Return if not hooked
+	}
+	while (Address <= this->_baseAddress + 0x197DFBC)
+	{
+		ReadProcessMemory(pHandle, (LPVOID)Address, &currentID, sizeof(currentID), NULL);
+		if (ID == currentID)
+		{																							 //Weapon found on memory
+			WriteProcessMemory(pHandle, (LPVOID)(Address), &emptySlotID, sizeof(emptySlotID), NULL); //Set level
+			return true;
+		}
+		Address += 0x14; //Go to the next slot
+	}
+}
+
 void NieRHook::setHUDOpacity(float opacity)
 {
 	HANDLE pHandle = OpenProcess(PROCESS_ALL_ACCESS, NULL, this->_pID);
diff --git a/Source/ConsoleApplication1/NierHook.hpp b/Source/ConsoleApplication1/NierHook.hpp
index 03ca63c..38aed6b 100644
--- a/Source/ConsoleApplication1/NierHook.hpp
+++ b/Source/ConsoleApplication1/NierHook.hpp
@@ -70,7 +70,9 @@ class NieRHook
 
 	//Inventory
 	bool addItem(int ID, int number);
+	bool removeItem(int ID);
 	bool addWeapon(int ID, int level);
+	bool removeWeapon(int ID);
 
 	//Misc
 	void setHUDOpacity(float opacity);