Add F2 screenshot functionality and image writing support

- Updated `EControllerActions` to include `MINECRAFT_ACTION_SCREENSHOT`.
- Added conditional compilation for `stb_image_write.h` in `Minecraft.cpp`.
- Modified `run_middle()` to handle screenshot key press.
- Updated `tick()` to capture and save screenshots as PNG files.
- Introduced `KEY_SCREENSHOT` in `KeyboardMouseInput.h` mapped to F2.
- Added `stb_image_write.h` for image writing capabilities.

Author: itsRevela

Minecraft.Client/Common/App_enums.h

@@ -878,7 +878,8 @@ enum EControllerActions
 	MINECRAFT_ACTION_SPAWN_CREEPER,
 	MINECRAFT_ACTION_CHANGE_SKIN,
 	MINECRAFT_ACTION_FLY_TOGGLE,
-	MINECRAFT_ACTION_RENDER_DEBUG
+	MINECRAFT_ACTION_RENDER_DEBUG,
+	MINECRAFT_ACTION_SCREENSHOT
 };
 
 enum eMCLang

Minecraft.Client/Minecraft.cpp

@@ -73,6 +73,11 @@
 #include "Common\UI\UIFontData.h"
 #include "DLCTexturePack.h"
 
+#ifdef _WINDOWS64
+#define STB_IMAGE_WRITE_IMPLEMENTATION
+#include "Windows64/stb_image_write.h"
+#endif
+
 #ifdef __ORBIS__
 #include "Orbis\Network\PsPlusUpsellWrapper_Orbis.h"
 #endif
@@ -1549,6 +1554,9 @@ void Minecraft::run_middle()
 							localplayers[i]->ullButtonsPressed|=1LL<<MINECRAFT_ACTION_RENDER_DEBUG;
 						}
 
+						if(g_KBMInput.IsKeyPressed(KeyboardMouseInput::KEY_SCREENSHOT))
+							localplayers[i]->ullButtonsPressed|=1LL<<MINECRAFT_ACTION_SCREENSHOT;
+
 						// In flying mode, Shift held = sneak/descend
 						if(g_KBMInput.IsKBMActive() && g_KBMInput.IsKeyDown(KeyboardMouseInput::KEY_SNEAK))
 						{
@@ -3737,6 +3745,80 @@ void Minecraft::tick(bool bFirst, bool bUpdateTextures)
 			//options->thirdPersonView = !options->thirdPersonView;
 		}
 
+#ifdef _WINDOWS64
+		if(player->ullButtonsPressed&(1LL<<MINECRAFT_ACTION_SCREENSHOT))
+		{
+			extern ID3D11Device* g_pd3dDevice;
+			extern ID3D11DeviceContext* g_pImmediateContext;
+			extern IDXGISwapChain* g_pSwapChain;
+
+			ID3D11Texture2D* pBackBuffer = nullptr;
+			HRESULT hr = g_pSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (void**)&pBackBuffer);
+			if (SUCCEEDED(hr))
+			{
+				D3D11_TEXTURE2D_DESC desc;
+				pBackBuffer->GetDesc(&desc);
+				desc.Usage = D3D11_USAGE_STAGING;
+				desc.BindFlags = 0;
+				desc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
+				desc.MiscFlags = 0;
+
+				ID3D11Texture2D* pStaging = nullptr;
+				hr = g_pd3dDevice->CreateTexture2D(&desc, nullptr, &pStaging);
+				if (SUCCEEDED(hr))
+				{
+					g_pImmediateContext->CopyResource(pStaging, pBackBuffer);
+
+					// Build path next to the executable
+					wchar_t exePath[MAX_PATH];
+					GetModuleFileNameW(NULL, exePath, MAX_PATH);
+					wchar_t* lastSlash = wcsrchr(exePath, L'\\');
+					if (lastSlash) *(lastSlash + 1) = L'\0';
+					wstring screenshotDirPath = wstring(exePath) + L"screenshots";
+					CreateDirectoryW(screenshotDirPath.c_str(), NULL);
+
+					SYSTEMTIME st;
+					GetLocalTime(&st);
+					wchar_t filename[128];
+					swprintf_s(filename, L"%04d-%02d-%02d_%02d.%02d.%02d.png",
+						st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond);
+					wstring screenshotPath = screenshotDirPath + L"\\" + filename;
+
+					D3D11_MAPPED_SUBRESOURCE mapped;
+					hr = g_pImmediateContext->Map(pStaging, 0, D3D11_MAP_READ, 0, &mapped);
+					if (SUCCEEDED(hr))
+					{
+						// Copy rows and force alpha to fully opaque
+						unsigned char* rgba = new unsigned char[desc.Width * desc.Height * 4];
+						for (UINT row = 0; row < desc.Height; row++)
+						{
+							unsigned char* src = (unsigned char*)mapped.pData + row * mapped.RowPitch;
+							unsigned char* dst = rgba + row * desc.Width * 4;
+							memcpy(dst, src, desc.Width * 4);
+							for (UINT x = 0; x < desc.Width; x++)
+								dst[x * 4 + 3] = 0xFF;
+						}
+						g_pImmediateContext->Unmap(pStaging, 0);
+
+						// Save PNG via stb_image_write
+						string narrowPath(screenshotPath.begin(), screenshotPath.end());
+						int writeResult = stbi_write_png(narrowPath.c_str(), desc.Width, desc.Height, 4, rgba, desc.Width * 4);
+						delete[] rgba;
+
+						// Send local-only chat message on success
+						if (writeResult)
+						{
+							wstring msg = L"Saved screenshot to " + wstring(filename);
+							gui->addMessage(msg, iPad);
+						}
+					}
+					pStaging->Release();
+				}
+				pBackBuffer->Release();
+			}
+		}
+#endif
+
 		if((player->ullButtonsPressed&(1LL<<MINECRAFT_ACTION_GAME_INFO)) && gameMode->isInputAllowed(MINECRAFT_ACTION_GAME_INFO))
 		{
 			ui.NavigateToScene(iPad,eUIScene_InGameInfoMenu);

Minecraft.Client/Windows64/KeyboardMouseInput.h

@@ -31,6 +31,7 @@ class KeyboardMouseInput
 	static const int KEY_THIRD_PERSON = VK_F5;
 	static const int KEY_DEBUG_INFO = VK_F3;
 	static const int KEY_DEBUG_MENU = VK_F4;
+	static const int KEY_SCREENSHOT = VK_F2;
 
 	void Init();
 	void Tick();