* Android: Determine feature availability at compile time.

Since assets are baked in to the APK, we can simply check for the existence of assets at compile time using CMake.

platforms/android/main.cpp

@@ -397,8 +397,35 @@ static void engine_handle_cmd(struct android_app* app, int32_t cmd) {
     }
 }
 
+extern bool g_bIsMenuBackgroundAvailable; // client/gui/Screen.cpp
+extern bool g_bAreCloudsAvailable;        // client/renderer/LevelRenderer.cpp
+extern bool g_bIsGrassColorAvailable;	  // world/level/GrassColor.cpp
+extern bool g_bIsFoliageColorAvailable;   // world/level/FoliageColor.cpp
+
+static void CheckOptionalTextureAvailability()
+{
+#ifdef FEATURE_MENU_BACKGROUND
+	g_bIsMenuBackgroundAvailable = true;
+#endif
+
+#ifdef FEATURE_CLOUDS
+	g_bAreCloudsAvailable = true;
+#endif
+
+#ifdef FEATURE_GRASS_COLOR
+	g_bIsGrassColorAvailable = true;
+#endif
+
+#ifdef FEATURE_FOLIAGE_COLOR
+	g_bIsFoliageColorAvailable = true;
+#endif
+}
+
+
 void android_main(struct android_app* state) {
     struct engine engine;
+	
+	CheckOptionalTextureAvailability();
 
     memset(&engine, 0, sizeof(engine));
     state->userData = &engine;

platforms/android/project/app/src/main/cpp/CMakeLists.txt

@@ -33,6 +33,23 @@ add_library( # Sets the name of the library.
              ${MC_ROOT}/platforms/android/main.cpp 
              ${MC_ROOT}/thirdparty/stb_image_impl.c)
 
+# Check for the presence of some optional asset based features.
+if(NOT EXISTS "${MC_ROOT}/game/assets/gui/background/panorama_0.png")
+	target_compile_definitions(reminecraftpe PUBLIC FEATURE_MENU_BACKGROUND)
+endif()
+
+if(NOT EXISTS "${MC_ROOT}/game/assets/environment/clouds.png")
+	target_compile_definitions(reminecraftpe PUBLIC FEATURE_CLOUDS)
+endif()
+
+if(NOT EXISTS "${MC_ROOT}/game/assets/misc/grasscolor.png")
+	target_compile_definitions(reminecraftpe PUBLIC FEATURE_GRASS_COLOR)
+endif()
+
+if(NOT EXISTS "${MC_ROOT}/game/assets/misc/foliagecolor.png")
+	target_compile_definitions(reminecraftpe PUBLIC FEATURE_FOLIAGE_COLOR)
+endif()
+
 # Add the core as part of the library.
 add_subdirectory(${MC_ROOT}/source source)
 target_link_libraries(reminecraftpe reminecraftpe-core)

platforms/sdl/main.cpp

@@ -299,7 +299,7 @@ void CheckOptionalTextureAvailability()
 	g_bIsMenuBackgroundAvailable = DoesAssetExist("gui/background/panorama_0.png");
 	g_bAreCloudsAvailable        = DoesAssetExist("environment/clouds.png");
 	g_bIsGrassColorAvailable     = DoesAssetExist("misc/grasscolor.png");
-	g_bIsFoliageColorAvailable = DoesAssetExist("misc/foliagecolor.png");
+	g_bIsFoliageColorAvailable   = DoesAssetExist("misc/foliagecolor.png");
 }
 
 // Main