From 4877dfde6db41a3460cf2dc98b5e39979d0270f7 Mon Sep 17 00:00:00 2001
From: iProgramInCpp <iprogramincpp@gmail.com>
Date: Sat, 4 Nov 2023 15:01:40 +0200
Subject: [PATCH] * Fix options and screenshot saving.

---
 platforms/android/AppPlatform_android.cpp | 23 +++++++++++++++++++++++
 platforms/android/AppPlatform_android.hpp |  4 ++++
 platforms/android/main.cpp                | 11 +++++++++++
 3 files changed, 38 insertions(+)

diff --git a/platforms/android/AppPlatform_android.cpp b/platforms/android/AppPlatform_android.cpp
index b74cfe0..b059ded 100644
--- a/platforms/android/AppPlatform_android.cpp
+++ b/platforms/android/AppPlatform_android.cpp
@@ -55,8 +55,31 @@ void AppPlatform_android::buyGame()
 {
 }
 
+bool AppPlatform_android::hasFileSystemAccess()
+{
+	return true;
+}
+
+void AppPlatform_android::setExternalStoragePath(const std::string& path)
+{
+	m_storageDir = path;
+}
+
 void AppPlatform_android::saveScreenshot(const std::string& fileName, int width, int height)
 {
+	std::string saveName = m_storageDir + "/" + fileName;
+
+	LOG_I("Saving in %s", saveName.c_str());
+
+	int npixels = width * height;
+	uint32_t* pixels = new uint32_t[npixels];
+	glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+
+	stbi_flip_vertically_on_write(true);
+
+	stbi_write_png(saveName.c_str(), width, height, 4, pixels, width * 4);
+
+	delete[] pixels;
 }
 
 int AppPlatform_android::getScreenWidth() const
diff --git a/platforms/android/AppPlatform_android.hpp b/platforms/android/AppPlatform_android.hpp
index 78e2aa1..29e32de 100644
--- a/platforms/android/AppPlatform_android.hpp
+++ b/platforms/android/AppPlatform_android.hpp
@@ -52,6 +52,7 @@ public:
 	
 	// Also add these to allow saving options.
 	//void setOptionStrings(const std::vector <std::string>& str) override;
+	bool hasFileSystemAccess() override;	
 
 	SoundSystem* const getSoundSystem() const override;
 	void initSoundSystem() override;
@@ -59,6 +60,7 @@ public:
 
 	void setScreenSize(int width, int height);
 	void initAndroidApp(android_app* ptr);
+	void setExternalStoragePath(const std::string& path);
 
 private:
 	int m_ScreenWidth;
@@ -81,5 +83,7 @@ private:
 	android_app* m_app;
 
 	SoundSystem* m_pSoundSystem;
+	
+	std::string m_storageDir;
 };
 
diff --git a/platforms/android/main.cpp b/platforms/android/main.cpp
index 09d6a8f..85a6462 100644
--- a/platforms/android/main.cpp
+++ b/platforms/android/main.cpp
@@ -1,3 +1,11 @@
+/********************************************************************
+	Minecraft: Pocket Edition - Decompilation Project
+	Copyright (C) 2023 iProgramInCpp
+	
+	The following code is licensed under the BSD 1 clause license.
+	SPDX-License-Identifier: BSD-1-Clause
+ ********************************************************************/
+
 #include <jni.h>
 #include <errno.h>
 #include "android_native_app_glue.h"
@@ -334,6 +342,7 @@ static void initWindow(struct engine* engine, struct android_app* app)
     if (!engine->initted)
     {
         engine->ninecraftApp->m_externalStorageDir = getExternalStorageDir(engine);
+        g_AppPlatform.setExternalStoragePath(engine->ninecraftApp->m_externalStorageDir);
         engine->ninecraftApp->init();
     }
     else
@@ -366,6 +375,7 @@ static void engine_handle_cmd(struct android_app* app, int32_t cmd) {
 
     case APP_CMD_TERM_WINDOW:
         LOG_I("APP_CMD_TERM_WINDOW");
+        engine->ninecraftApp->saveOptions();
         if (engine->display)
         {
             eglMakeCurrent(engine->display, 0, 0, 0);
@@ -382,6 +392,7 @@ static void engine_handle_cmd(struct android_app* app, int32_t cmd) {
         break;
     case APP_CMD_LOST_FOCUS:
         engine->animating = 0;
+        engine->ninecraftApp->saveOptions();
         break;
     }
 }